Planetary Mixers

Innovation in

2

Ross Planetary Mixers

Ross has been the leading manufacturer of planetary mixers around the world

since we introduced the original Double Planetary Mixer more than 50 years ago.

Today, Ross operates five plants in the USA, along with Ross-owned and

licensed plants in Europe, Asia, the Indian Sub-Continent and Africa. The Ross

family of planetary mixers includes sizes from 1/2-pint to 500

gallons – and a multitude of options to meet the needs of any

industrial application.

THE WORLD’S LARGEST INVENTORY OF MIXERS IN STOCK FOR FAST DELIVERY

Our multi-million dollar inventory of mixers and blenders is your

ultimate assurance that you can have the equipment

you need, when you need it.

Test on your own process line – After you have tested

a Ross planetary mixer in our laboratory, a Ross trial

unit allows you to evaluate our mixer in your own

plant before you buy it.

THE WORLDWIDE STANDARD FOR QUALITY, RELIABILITY AND INNOVATION

3

The originalPony Mixer –early 1900s.

The new DPM DoublePlanetary Mixer –

designed for ultra-highviscosity materials.

The Ross record of innovation Since Ross introduced the change-can Pony

Mixer nearly 100 years ago, Rossinnovations have delivered enormousincreases in production capacity and

flexibility. No other manufacturer canmatch Ross’s experience in building systemsfor vacuum mixing and drying, solventrecovery, hands-free discharge, andintegrated process control.

Ross has led the evolution of planetarymixer design for more than 50 years.Today, our leadership continues withbreakthrough designs in planetary stirrersand next-generation systems for digitalcontrol and data management.

Pioneering design in planetary mixingThe world’s first change-can mixing system

The original Double Planetary Mixer

Vacuum mixing technology and techniques

Integrated discharge systems

Orbital temperature probes

PowerMix* planetary/disperser mixers

HV Planetary Blades*

*Patented

4

POWER AND PROCESS FLEXIBILITYIdeal for mixing and kneading viscous pastes orputty-like materials, the Ross Double Planetary canbe engineered for operation in many industries,from hot melt adhesives to microelectronicsmanufacturing. Configurations are available toapply the precise combination of power andshear rates you require, and Ross technicalexperts are available in our laboratory to helpoptimize your mixing process.

The new DPM Double Planetary Mixer canhandle many ultra-high viscosity materials thathave generally required a double-arm kneader.The Double Planetary Mixer provides analternative that is much less expensive, andrequires less maintenance. Unlike the double-armkneader, the standard Double Planetary Mixerhas no packing glands or bearings submerged inthe product zone. Sizes range from 1/2-pint tomore than 500 gallons.

The Ross Double Planetary Mixer

Now you can see an onlinedemonstration of the Ross DoublePlanetary Mixer in action! Point

your web browser to our homepage, and click on “Animations.”www.mixers.com

New HV Blades for ultra-high viscosities – Thehelical curve and graduated down-thrust cross-section of the new HV Blades prevent heavymaterials from “climbing” up into the vacuumhood and charging ports. A smooth mixingaction eliminates torque spikes during themixing process and significantly increases theoperating range of the Double Planetary Mixer. Our sleek new DPM Double Planetary design

encloses the mixer and auxiliary equipment.Our integrated control systems are

designed and built by Ross Systems andControls. They are pre-programmed and pre-wired, so start-up is fast and inexpensive.No need for third-party installers.

Seal selection to match your performancerequirements – Numerous options areavailable for sealing the drive shaft, stirrershafts and the vacuum hood. Seal designsinclude such choices as Teflon chevron v-rings,dry-running mechanical seals, elastomerico-rings, and lip seals in materials such asNitrile, Viton, silicon and Kalrez.

Precise machining for superior vacuumcapabilities – Vacuum hoods and interchange-able vessels are precisely machined for aperfect fit. The result – you can sustain anextremely high level of vacuum (29" Hg).

THE MOST VERSATILE PLANETARYMIXER EVER CREATEDThe patented Ross PowerMix* offers remarkableversatility, which makes it ideal for applications inwhich a series of mixing stages require severaltypes of mixing action.

In one continuous mix cycle, for example,the PowerMix can apply high shear andquickly disperse a powder in a low-viscosity liquid. As the materialthickens, the PowerMix can continue the mixing process even after theproduct has reached a high-viscosity,non-flowing state.

With this versatility, the PowerMix canoften combine the mixing action of twomixers – allowing you to retire two piecesof equipment – and cut the cycle time by50% or more.

POWERMIX OPERATIONThe PowerMix is unique because itcombines a planetary blade and a highspeed disperser with the characteristicplanetary motion of a Double PlanetaryMixer. Both agitators are in constantmotion. The planetary blade contin-uously sweeps the vessel wall and feedsmaterial directly into the high shear zoneof the orbiting high speed disperser –accelerating the mixing process.

Check out the most recentapplication information availablefor the Ross Double Planetary

Mixer and the Ross PowerMix. Point your web browser to ourhomepage, and click on “Technical Reports and Articles.”www.mixers.com

MATERIALS OF CONSTRUCTIONRoss is uniquely equipped to provide aPowerMix or Double Planetary mixer built tohandle your application reliably. With worldclass fabrication facilities, we can work withvirtually any material – and guarantee that thejob is done right.

• Hastelloy

• Aluminum

• Titanium

• Carbon or stainless steel, including:– ASTM A36– SA516 Grade 70 for pressure vessels – SA240 Type 304– SA240 Type 316– 8620 special alloy hardened steel for shafts– Other specialty grades

SPECIALTY COATINGSTo provide an extra measure of protectionagainst wear, Ross offers a variety of coatingsfor all its planetary mixers. These may beapplied to the vessel wall, the agitators, or to all interior surfaces contacting the product.

• Kynar

• Teflon

• Tungsten carbide

• Nylon

• Halar

DRIVE OPTIONSA variety of drive systems are available for boththe Ross Double Planetary and the Ross PowerMix.Electric drives are standard. Electronic variablespeed control is a popular option, because itenables you to start the mixer under heavy loadand fine-tune the mixing process. Ross can alsoprovide hydraulic drives for planetary mixers inany size.

5 8 9

Applications

Electronics – Thick film inks

Sealants – Urethanes and silicones

Adhesives – Hot melts and formulated epoxies

Plastics – Sheet molding compounds, plastisols

Ceramics – Slurry dispersions

Propellants – Automotive air bags, munitions

Coatings – Conductive and security inks, andspecialty coatings

The Ross PowerMix

OTHER HIGH PERFORMANCEOPTIONSRoss design and application engineers are the best in the business. They can recommend a package of options that will ensure that yournew planetary mixer will deliver superiorperformance for many years.

• Internal pressure

• Complete vacuum and solvent-recoverysystems

• Explosion-proof designs

• Jackets for heating and cooling the batch

• Bottom and side-wall scrapers

• Discharge systems for bulk discharge andcartridge filling

• Sanitary design

• PLC control systems

• Solenoid operated valves for hydraulic lift and discharge valve – for remote/automatedcontrol

• Devices to measure and monitor torque

• Drum mixers

• Reverse lift designs

In the Ross PowerMix, the planetary blade (A) and HSD (B) revolveon their own axes, while they both orbit the vessel on a commonaxis. By constantly advancing the agitators into the batch material,the PowerMix can apply intense mixing action while it prevents thelocalized build-up of heat.

To see an online demonstration of the Ross PowerMix in action,point your web browser to our

homepage, and click on “Animations.” www.mixers.com

* Patent No. 4,697,929

The Ross PowerMix can be supplied with your choice of highspeed, high shear agitators. Here, a high speed chopperblade substitutes for a high speed disperser. Multiple highspeed disperser blades can also be supplied, with theirpositions adjustable on a single shaft.

Lab models, like this 2gallon PowerMix, areextremely efficient foreither benchtop processdevelopment or small-volume production.Scale-up is smooth andpredictable. Lab modelsare often supplied witha discharge systemmounted on the samebench – a highly efficient,self-contained system.

The use of multiple change cans can transform a traditional batchmixing system into a semi-continuous system. Efficiency increasesmeasurably as one can wheels away from the mixer for dischargewhile another rolls into position immediately to begin mixing thenext batch. In this case, these stainless steels change cans are rolledaway from the PowerMix and raised to discharge an electronic inkdirectly into a Three Roll Mill. Side-mounted flush ball valves ensurecomplete discharge.

Many PowerMix units,like this one, are builtwith a stainless steel jacketand a thermocouple formonitoring batch temper-ature during the mix cycle.For applications involvingheat-sensitive materials –in which thermal controlis critical throughout themix cycle – Ross engineershave developed a sensorthat orbits the vessel andtravels through the batchmaterial. Readings areextremely accurate.

PowerMixPowerMix Planetary Disperser Mix CapacityModel Horsepower Horsepower in Gal. (Liters)

PDM-0.5 Gal. .50 1 .15 – .50 (.85 – 2)PDM-2 Gal. 1 2 .75 – 1.5 (3 – 6)PDM-4 Gal. 1.5 3 2 – 4 (5.5 – 15)PDM-10 Gal. 3 3, 5, 7.5 4 – 12 (15 – 46)PDM-40 Gal. 7.5, 10 10, 15, 20 10 – 40 (36 – 151)PDM-100 Gal. 15, 20 20, 30, 40 30 – 100 (120 – 379)PDM-200 Gal. 25 30, 40, 50 66 – 200 (250 – 757)PDM-300 Gal. 40 50, 60, 75 100 – 300 (380 – 1,136)PDM-400 Gal. 40, 60 60, 75 150 – 400 (570 – 1,514)

(A)

(B)

Select the right blade design, and the rightflow pattern, to optimize the mixing processin your application.

Rectangular blades – The proven choicefor many low to high viscosityapplications, these blades mix with apowerful kneading action. They aresuitable for thorough wet or dry blendingregardless of the product’s flowcharacteristics.

Finger blades – Ross Finger Blades areoften preferred for special applications thatrequire the mixing of delicate solids andfibers. These blades can also be customdesigned to fine-tune axial flow – andmeet the specific requirements of yourapplication.

New HV Blades – Ross’s patented HVBlades produce excellent axial and radialflow, and easily handle medium to ultra-high viscosity materials. The HV Bladesprevent heavy batch materials from“climbing-up” the blades – extending theworking range of the Double PlanetaryMixer by several million centipoise.

10 6 7

VACUUM MIXING Ross is a world leader in vacuum mixing anddrying. Applied to any Ross mixer or blender,vacuum can accelerate the mix/blend cycle,improve end-product quality, and help recoversolvents that would otherwise escape into theplant atmosphere. Vacuum is also an effectivetool for adding lightweight powders to a liquidbatch – eliminating “dusting” in the plant andwetting out solids quickly.

INTEGRATED TURNTABLEMIXING/DISCHARGE SYSTEM An automated turntable mixing system can make your planetary mixing process significantlymore productive. As the turntable indexes, thechange cans cycle through a sequence ofcharging, mixing, discharging and cleaning.With a complete control system and materialhandling package, operator intervention can bevirtually eliminated. Compact and platform-mounted, the system can cut labor costs while it improves end-product consistency andincreases production.

Ross provides many designsspecialized to meet the needs ofdemanding applications. SanitaryDouble Planetary mixers, forexample, are available in all sizes,with a variety of polishes. Specialvalve options, including flushbottom radial diaphragm valvesand flush bottom ball valves, areavailable to simplify cleaning.

Ross offers many liftoptions to accommodate

the special needs of your application. In this

300-gal. Double Planetarymixer, a dual-post lift

offers increased strengthfor handling high-viscosity

materials. It also allowseasy handling of mix

vessels from either side of the mixer.

With heavy duty construction and exceptionaladaptability, the 1 quart Double Planetarymixer is our most popular size for laboratoryapplications – especially for small-scaleproduction leading to scale-up. The change-can design is ideal for use with an auxiliarydischarge system, to meet special handlingand filling requirements.

*Patent pending.

AUTOMATIC DISCHARGE SYSTEMS A follower plate discharge system, actuatedhydraulically or pneumatically, can dramaticallyimprove your production while it improves safety in your plant.

With a mix vessel precisely machined in ourown fabrication plant, discharge is fast andcomplete – even for many highly viscousmaterials. The batch material is often dischargeddirectly into bulk packaging, retail packaging, or conveying equipment.

By automating the discharge process, thesystem also reduces the risk of injury. Operatorscan now push a button instead of manuallyscooping the product out of the mix vessel. Thisreduces their exposure to the product andreduces the risk of injury while dischargingheavy products by hand.

DOUBLE PLANETARY MIXER OPERATIONIn a Ross Double Planetary Mixer, two planetaryblades rotate on their own axes, while they orbit themix vessel on a common axis. The bladescontinuously advance along the periphery of thevessel, removing material from the vessel wall andtransporting it to the interior.

This positive mixing action serves several purposes.

Complete mixing – In only a few minutes, the bladespass through every point in the vessel and promotefast and thorough mixing.

Efficient heat transfer – By preventing a layer ofmaterial from accumulating on the vessel wall, themixer ensures efficient heat transfer and evendistribution of heat throughout the batch – criticallyimportant concerns for heat-sensitive materials.

Now, ultra-high viscosity capacity with HV Blades –The mixer can handle materials of extremely highviscosities. With conventional blades, the DoublePlanetary Mixer can operate up to approximately1.5 million centipoise.* With Ross HV Blades, speciallydesigned for heavy materials, the operating limit ismuch higher – approximately 6 million centipoise.

* At very high levels, the measure of viscosity is an extremely subjectiveprocess. In addition, many variables besides viscosity must be consideredwhen determining the operating limits of any mixer. Contact Ross todiscuss the key parameters that must be considered in your application.

Double Planetary Mixer Applications

Abrasives – Grinding wheels

Adhesives – Silicones, epoxies, caulks

Batteries – Conventional and advanced fuel cells

Dental Composites – Pastes, gels

Electronics – Dense metallic slurries and thick film pastes

Metal Powder – Drying and blending

Plastics – Syntactic Foam, plastisols

Waste Treatment – Solidification for disposal

A variety of dischargeoptions allow you to reducematerial handling andincrease throughput. This2-gal Double Planetarymixer is equipped todischarge finished productdirectly into cartridges.

This 1/2-pint sanitary, stainless steelDPM Double Planetary mixeraddresses special requirements forcooling, heating, internal pressureand vacuum mixing. It is oftenselected for small-volume productioninvolving costly materials such asprecious metals and pharmaceuticals.

Auxiliary systems that make your planetary mixingsystem even more efficient.

Blade motion during 1 revolution

3 revolutions After only 36 revolu-tions, the blades of theDouble Planetary Mixerhave contacted virtually

the entire batch.

Double PlanetaryModel Horsepower Mix Capacity (Liters)

DPM-0.5 Pt. .33 .25-Pt. – .50-Pt. (.12 – .25)DPM-1 Pt. .33 .50-Pt. – 1 Pt. (.25 – .50)DPM-1 Qt. .50 .50-Pt. – 1 Qt. (.24 – .95)DPM-1 Gal. 1 1-Pt. – 3.5 Qt. (.50 – 3.3)DPM-2 Gal. 1 1 Qt. – 1.5 Gal. (.95 – 5.7)DPM-4 Gal. 1, 1.5 1 Qt. – 4 Gal. (.95 – 15.2)DPM-10 Gal. 2, 3, 5 2 Gal. – 12 Gal. (7.6 – 45)DPM-25 Gal. 5, 10, 15 5 Gal. – 25 Gal. (19 – 94)DPM-40 Gal. 5, 10, 15 5 Gal. – 40 Gal. (19 – 151)DPM-75 Gal. 10, 20, 30 10 Gal. – 75 Gal. (37.9 – 284)DPM-100 Gal. 10, 20, 30 10 Gal. – 100 Gal. (37.9 – 378)DPM-150 Gal. 20, 30, 40 20 Gal. – 150 Gal. (75.5 – 567)DPM-200 Gal. 20, 30, 40 30 Gal. – 200 Gal. (113.5 – 757)DPM-300 Gal. 50, 75, 100 75 Gal. – 300 Gal. (284 – 1,135)DPM-500 Gal. 150 150 – 500 Gal. (570 – 1,900)

Mixing Station

Cleaning Station

Discharge Station

Filling Station

Select the right blade design, and the rightflow pattern, to optimize the mixing processin your application.

Rectangular blades – The proven choicefor many low to high viscosityapplications, these blades mix with apowerful kneading action. They aresuitable for thorough wet or dry blendingregardless of the product’s flowcharacteristics.

Finger blades – Ross Finger Blades areoften preferred for special applications thatrequire the mixing of delicate solids andfibers. These blades can also be customdesigned to fine-tune axial flow – andmeet the specific requirements of yourapplication.

New HV Blades – Ross’s patented HVBlades produce excellent axial and radialflow, and easily handle medium to ultra-high viscosity materials. The HV Bladesprevent heavy batch materials from“climbing-up” the blades – extending theworking range of the Double PlanetaryMixer by several million centipoise.

10 6 7

VACUUM MIXING Ross is a world leader in vacuum mixing anddrying. Applied to any Ross mixer or blender,vacuum can accelerate the mix/blend cycle,improve end-product quality, and help recoversolvents that would otherwise escape into theplant atmosphere. Vacuum is also an effectivetool for adding lightweight powders to a liquidbatch – eliminating “dusting” in the plant andwetting out solids quickly.

INTEGRATED TURNTABLEMIXING/DISCHARGE SYSTEM An automated turntable mixing system can make your planetary mixing process significantlymore productive. As the turntable indexes, thechange cans cycle through a sequence ofcharging, mixing, discharging and cleaning.With a complete control system and materialhandling package, operator intervention can bevirtually eliminated. Compact and platform-mounted, the system can cut labor costs while it improves end-product consistency andincreases production.

Ross provides many designsspecialized to meet the needs ofdemanding applications. SanitaryDouble Planetary mixers, forexample, are available in all sizes,with a variety of polishes. Specialvalve options, including flushbottom radial diaphragm valvesand flush bottom ball valves, areavailable to simplify cleaning.

Ross offers many liftoptions to accommodate

the special needs of your application. In this

300-gal. Double Planetarymixer, a dual-post lift

offers increased strengthfor handling high-viscosity

materials. It also allowseasy handling of mix

vessels from either side of the mixer.

With heavy duty construction and exceptionaladaptability, the 1 quart Double Planetarymixer is our most popular size for laboratoryapplications – especially for small-scaleproduction leading to scale-up. The change-can design is ideal for use with an auxiliarydischarge system, to meet special handlingand filling requirements.

*Patent pending.

AUTOMATIC DISCHARGE SYSTEMS A follower plate discharge system, actuatedhydraulically or pneumatically, can dramaticallyimprove your production while it improves safety in your plant.

With a mix vessel precisely machined in ourown fabrication plant, discharge is fast andcomplete – even for many highly viscousmaterials. The batch material is often dischargeddirectly into bulk packaging, retail packaging, or conveying equipment.

By automating the discharge process, thesystem also reduces the risk of injury. Operatorscan now push a button instead of manuallyscooping the product out of the mix vessel. Thisreduces their exposure to the product andreduces the risk of injury while dischargingheavy products by hand.

DOUBLE PLANETARY MIXER OPERATIONIn a Ross Double Planetary Mixer, two planetaryblades rotate on their own axes, while they orbit themix vessel on a common axis. The bladescontinuously advance along the periphery of thevessel, removing material from the vessel wall andtransporting it to the interior.

This positive mixing action serves several purposes.

Complete mixing – In only a few minutes, the bladespass through every point in the vessel and promotefast and thorough mixing.

Efficient heat transfer – By preventing a layer ofmaterial from accumulating on the vessel wall, themixer ensures efficient heat transfer and evendistribution of heat throughout the batch – criticallyimportant concerns for heat-sensitive materials.

Now, ultra-high viscosity capacity with HV Blades –The mixer can handle materials of extremely highviscosities. With conventional blades, the DoublePlanetary Mixer can operate up to approximately1.5 million centipoise.* With Ross HV Blades, speciallydesigned for heavy materials, the operating limit ismuch higher – approximately 6 million centipoise.

* At very high levels, the measure of viscosity is an extremely subjectiveprocess. In addition, many variables besides viscosity must be consideredwhen determining the operating limits of any mixer. Contact Ross todiscuss the key parameters that must be considered in your application.

Double Planetary Mixer Applications

Abrasives – Grinding wheels

Adhesives – Silicones, epoxies, caulks

Batteries – Conventional and advanced fuel cells

Dental Composites – Pastes, gels

Electronics – Dense metallic slurries and thick film pastes

Metal Powder – Drying and blending

Plastics – Syntactic Foam, plastisols

Waste Treatment – Solidification for disposal

A variety of dischargeoptions allow you to reducematerial handling andincrease throughput. This2-gal Double Planetarymixer is equipped todischarge finished productdirectly into cartridges.

This 1/2-pint sanitary, stainless steelDPM Double Planetary mixeraddresses special requirements forcooling, heating, internal pressureand vacuum mixing. It is oftenselected for small-volume productioninvolving costly materials such asprecious metals and pharmaceuticals.

Auxiliary systems that make your planetary mixingsystem even more efficient.

Blade motion during 1 revolution

3 revolutions After only 36 revolu-tions, the blades of theDouble Planetary Mixerhave contacted virtually

the entire batch.

Double PlanetaryModel Horsepower Mix Capacity (Liters)

DPM-0.5 Pt. .33 .25-Pt. – .50-Pt. (.12 – .25)DPM-1 Pt. .33 .50-Pt. – 1 Pt. (.25 – .50)DPM-1 Qt. .50 .50-Pt. – 1 Qt. (.24 – .95)DPM-1 Gal. 1 1-Pt. – 3.5 Qt. (.50 – 3.3)DPM-2 Gal. 1 1 Qt. – 1.5 Gal. (.95 – 5.7)DPM-4 Gal. 1, 1.5 1 Qt. – 4 Gal. (.95 – 15.2)DPM-10 Gal. 2, 3, 5 2 Gal. – 12 Gal. (7.6 – 45)DPM-25 Gal. 5, 10, 15 5 Gal. – 25 Gal. (19 – 94)DPM-40 Gal. 5, 10, 15 5 Gal. – 40 Gal. (19 – 151)DPM-75 Gal. 10, 20, 30 10 Gal. – 75 Gal. (37.9 – 284)DPM-100 Gal. 10, 20, 30 10 Gal. – 100 Gal. (37.9 – 378)DPM-150 Gal. 20, 30, 40 20 Gal. – 150 Gal. (75.5 – 567)DPM-200 Gal. 20, 30, 40 30 Gal. – 200 Gal. (113.5 – 757)DPM-300 Gal. 50, 75, 100 75 Gal. – 300 Gal. (284 – 1,135)DPM-500 Gal. 150 150 – 500 Gal. (570 – 1,900)

Mixing Station

Cleaning Station

Discharge Station

Filling Station

THE MOST VERSATILE PLANETARYMIXER EVER CREATEDThe patented Ross PowerMix* offers remarkableversatility, which makes it ideal for applications inwhich a series of mixing stages require severaltypes of mixing action.

In one continuous mix cycle, for example,the PowerMix can apply high shear andquickly disperse a powder in a low-viscosity liquid. As the materialthickens, the PowerMix can continue the mixing process even after theproduct has reached a high-viscosity,non-flowing state.

With this versatility, the PowerMix canoften combine the mixing action of twomixers – allowing you to retire two piecesof equipment – and cut the cycle time by50% or more.

POWERMIX OPERATIONThe PowerMix is unique because itcombines a planetary blade and a highspeed disperser with the characteristicplanetary motion of a Double PlanetaryMixer. Both agitators are in constantmotion. The planetary blade contin-uously sweeps the vessel wall and feedsmaterial directly into the high shear zoneof the orbiting high speed disperser –accelerating the mixing process.

Check out the most recentapplication information availablefor the Ross Double Planetary

Mixer and the Ross PowerMix. Point your web browser to ourhomepage, and click on “Technical Reports and Articles.”www.mixers.com

MATERIALS OF CONSTRUCTIONRoss is uniquely equipped to provide aPowerMix or Double Planetary mixer built tohandle your application reliably. With worldclass fabrication facilities, we can work withvirtually any material – and guarantee that thejob is done right.

• Hastelloy

• Aluminum

• Titanium

• Carbon or stainless steel, including:– ASTM A36– SA516 Grade 70 for pressure vessels – SA240 Type 304– SA240 Type 316– 8620 special alloy hardened steel for shafts– Other specialty grades

SPECIALTY COATINGSTo provide an extra measure of protectionagainst wear, Ross offers a variety of coatingsfor all its planetary mixers. These may beapplied to the vessel wall, the agitators, or to all interior surfaces contacting the product.

• Kynar

• Teflon

• Tungsten carbide

• Nylon

• Halar

DRIVE OPTIONSA variety of drive systems are available for boththe Ross Double Planetary and the Ross PowerMix.Electric drives are standard. Electronic variablespeed control is a popular option, because itenables you to start the mixer under heavy loadand fine-tune the mixing process. Ross can alsoprovide hydraulic drives for planetary mixers inany size.

5 8 9

Applications

Electronics – Thick film inks

Sealants – Urethanes and silicones

Adhesives – Hot melts and formulated epoxies

Plastics – Sheet molding compounds, plastisols

Ceramics – Slurry dispersions

Propellants – Automotive air bags, munitions

Coatings – Conductive and security inks, andspecialty coatings

The Ross PowerMix

OTHER HIGH PERFORMANCEOPTIONSRoss design and application engineers are the best in the business. They can recommend a package of options that will ensure that yournew planetary mixer will deliver superiorperformance for many years.

• Internal pressure

• Complete vacuum and solvent-recoverysystems

• Explosion-proof designs

• Jackets for heating and cooling the batch

• Bottom and side-wall scrapers

• Discharge systems for bulk discharge andcartridge filling

• Sanitary design

• PLC control systems

• Solenoid operated valves for hydraulic lift and discharge valve – for remote/automatedcontrol

• Devices to measure and monitor torque

• Drum mixers

• Reverse lift designs

In the Ross PowerMix, the planetary blade (A) and HSD (B) revolveon their own axes, while they both orbit the vessel on a commonaxis. By constantly advancing the agitators into the batch material,the PowerMix can apply intense mixing action while it prevents thelocalized build-up of heat.

To see an online demonstration of the Ross PowerMix in action,point your web browser to our

homepage, and click on “Animations.” www.mixers.com

* Patent No. 4,697,929

The Ross PowerMix can be supplied with your choice of highspeed, high shear agitators. Here, a high speed chopperblade substitutes for a high speed disperser. Multiple highspeed disperser blades can also be supplied, with theirpositions adjustable on a single shaft.

Lab models, like this 2gallon PowerMix, areextremely efficient foreither benchtop processdevelopment or small-volume production.Scale-up is smooth andpredictable. Lab modelsare often supplied witha discharge systemmounted on the samebench – a highly efficient,self-contained system.

The use of multiple change cans can transform a traditional batchmixing system into a semi-continuous system. Efficiency increasesmeasurably as one can wheels away from the mixer for dischargewhile another rolls into position immediately to begin mixing thenext batch. In this case, these stainless steels change cans are rolledaway from the PowerMix and raised to discharge an electronic inkdirectly into a Three Roll Mill. Side-mounted flush ball valves ensurecomplete discharge.

Many PowerMix units,like this one, are builtwith a stainless steel jacketand a thermocouple formonitoring batch temper-ature during the mix cycle.For applications involvingheat-sensitive materials –in which thermal controlis critical throughout themix cycle – Ross engineershave developed a sensorthat orbits the vessel andtravels through the batchmaterial. Readings areextremely accurate.

PowerMixPowerMix Planetary Disperser Mix CapacityModel Horsepower Horsepower in Gal. (Liters)

PDM-0.5 Gal. .50 1 .15 – .50 (.85 – 2)PDM-2 Gal. 1 2 .75 – 1.5 (3 – 6)PDM-4 Gal. 1.5 3 2 – 4 (5.5 – 15)PDM-10 Gal. 3 3, 5, 7.5 4 – 12 (15 – 46)PDM-40 Gal. 7.5, 10 10, 15, 20 10 – 40 (36 – 151)PDM-100 Gal. 15, 20 20, 30, 40 30 – 100 (120 – 379)PDM-200 Gal. 25 30, 40, 50 66 – 200 (250 – 757)PDM-300 Gal. 40 50, 60, 75 100 – 300 (380 – 1,136)PDM-400 Gal. 40, 60 60, 75 150 – 400 (570 – 1,514)

(A)

(B)

THE MOST VERSATILE PLANETARYMIXER EVER CREATEDThe patented Ross PowerMix* offers remarkableversatility, which makes it ideal for applications inwhich a series of mixing stages require severaltypes of mixing action.

In one continuous mix cycle, for example,the PowerMix can apply high shear andquickly disperse a powder in a low-viscosity liquid. As the materialthickens, the PowerMix can continue the mixing process even after theproduct has reached a high-viscosity,non-flowing state.

With this versatility, the PowerMix canoften combine the mixing action of twomixers – allowing you to retire two piecesof equipment – and cut the cycle time by50% or more.

POWERMIX OPERATIONThe PowerMix is unique because itcombines a planetary blade and a highspeed disperser with the characteristicplanetary motion of a Double PlanetaryMixer. Both agitators are in constantmotion. The planetary blade contin-uously sweeps the vessel wall and feedsmaterial directly into the high shear zoneof the orbiting high speed disperser –accelerating the mixing process.

Check out the most recentapplication information availablefor the Ross Double Planetary

Mixer and the Ross PowerMix. Point your web browser to ourhomepage, and click on “Technical Reports and Articles.”www.mixers.com

MATERIALS OF CONSTRUCTIONRoss is uniquely equipped to provide aPowerMix or Double Planetary mixer built tohandle your application reliably. With worldclass fabrication facilities, we can work withvirtually any material – and guarantee that thejob is done right.

• Hastelloy

• Aluminum

• Titanium

• Carbon or stainless steel, including:– ASTM A36– SA516 Grade 70 for pressure vessels – SA240 Type 304– SA240 Type 316– 8620 special alloy hardened steel for shafts– Other specialty grades

SPECIALTY COATINGSTo provide an extra measure of protectionagainst wear, Ross offers a variety of coatingsfor all its planetary mixers. These may beapplied to the vessel wall, the agitators, or to all interior surfaces contacting the product.

• Kynar

• Teflon

• Tungsten carbide

• Nylon

• Halar

DRIVE OPTIONSA variety of drive systems are available for boththe Ross Double Planetary and the Ross PowerMix.Electric drives are standard. Electronic variablespeed control is a popular option, because itenables you to start the mixer under heavy loadand fine-tune the mixing process. Ross can alsoprovide hydraulic drives for planetary mixers inany size.

5 8 9

Applications

Electronics – Thick film inks

Sealants – Urethanes and silicones

Adhesives – Hot melts and formulated epoxies

Plastics – Sheet molding compounds, plastisols

Ceramics – Slurry dispersions

Propellants – Automotive air bags, munitions

Coatings – Conductive and security inks, andspecialty coatings

The Ross PowerMix

OTHER HIGH PERFORMANCEOPTIONSRoss design and application engineers are the best in the business. They can recommend a package of options that will ensure that yournew planetary mixer will deliver superiorperformance for many years.

• Internal pressure

• Complete vacuum and solvent-recoverysystems

• Explosion-proof designs

• Jackets for heating and cooling the batch

• Bottom and side-wall scrapers

• Discharge systems for bulk discharge andcartridge filling

• Sanitary design

• PLC control systems

• Solenoid operated valves for hydraulic lift and discharge valve – for remote/automatedcontrol

• Devices to measure and monitor torque

• Drum mixers

• Reverse lift designs

In the Ross PowerMix, the planetary blade (A) and HSD (B) revolveon their own axes, while they both orbit the vessel on a commonaxis. By constantly advancing the agitators into the batch material,the PowerMix can apply intense mixing action while it prevents thelocalized build-up of heat.

To see an online demonstration of the Ross PowerMix in action,point your web browser to our

homepage, and click on “Animations.” www.mixers.com

* Patent No. 4,697,929

The Ross PowerMix can be supplied with your choice of highspeed, high shear agitators. Here, a high speed chopperblade substitutes for a high speed disperser. Multiple highspeed disperser blades can also be supplied, with theirpositions adjustable on a single shaft.

Lab models, like this 2gallon PowerMix, areextremely efficient foreither benchtop processdevelopment or small-volume production.Scale-up is smooth andpredictable. Lab modelsare often supplied witha discharge systemmounted on the samebench – a highly efficient,self-contained system.

The use of multiple change cans can transform a traditional batchmixing system into a semi-continuous system. Efficiency increasesmeasurably as one can wheels away from the mixer for dischargewhile another rolls into position immediately to begin mixing thenext batch. In this case, these stainless steels change cans are rolledaway from the PowerMix and raised to discharge an electronic inkdirectly into a Three Roll Mill. Side-mounted flush ball valves ensurecomplete discharge.

Many PowerMix units,like this one, are builtwith a stainless steel jacketand a thermocouple formonitoring batch temper-ature during the mix cycle.For applications involvingheat-sensitive materials –in which thermal controlis critical throughout themix cycle – Ross engineershave developed a sensorthat orbits the vessel andtravels through the batchmaterial. Readings areextremely accurate.

PowerMixPowerMix Planetary Disperser Mix CapacityModel Horsepower Horsepower in Gal. (Liters)

PDM-0.5 Gal. .50 1 .15 – .50 (.85 – 2)PDM-2 Gal. 1 2 .75 – 1.5 (3 – 6)PDM-4 Gal. 1.5 3 2 – 4 (5.5 – 15)PDM-10 Gal. 3 3, 5, 7.5 4 – 12 (15 – 46)PDM-40 Gal. 7.5, 10 10, 15, 20 10 – 40 (36 – 151)PDM-100 Gal. 15, 20 20, 30, 40 30 – 100 (120 – 379)PDM-200 Gal. 25 30, 40, 50 66 – 200 (250 – 757)PDM-300 Gal. 40 50, 60, 75 100 – 300 (380 – 1,136)PDM-400 Gal. 40, 60 60, 75 150 – 400 (570 – 1,514)

(A)

(B)

Select the right blade design, and the rightflow pattern, to optimize the mixing processin your application.

Rectangular blades – The proven choicefor many low to high viscosityapplications, these blades mix with apowerful kneading action. They aresuitable for thorough wet or dry blendingregardless of the product’s flowcharacteristics.

Finger blades – Ross Finger Blades areoften preferred for special applications thatrequire the mixing of delicate solids andfibers. These blades can also be customdesigned to fine-tune axial flow – andmeet the specific requirements of yourapplication.

New HV Blades – Ross’s patented HVBlades produce excellent axial and radialflow, and easily handle medium to ultra-high viscosity materials. The HV Bladesprevent heavy batch materials from“climbing-up” the blades – extending theworking range of the Double PlanetaryMixer by several million centipoise.

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VACUUM MIXING Ross is a world leader in vacuum mixing anddrying. Applied to any Ross mixer or blender,vacuum can accelerate the mix/blend cycle,improve end-product quality, and help recoversolvents that would otherwise escape into theplant atmosphere. Vacuum is also an effectivetool for adding lightweight powders to a liquidbatch – eliminating “dusting” in the plant andwetting out solids quickly.

INTEGRATED TURNTABLEMIXING/DISCHARGE SYSTEM An automated turntable mixing system can make your planetary mixing process significantlymore productive. As the turntable indexes, thechange cans cycle through a sequence ofcharging, mixing, discharging and cleaning.With a complete control system and materialhandling package, operator intervention can bevirtually eliminated. Compact and platform-mounted, the system can cut labor costs while it improves end-product consistency andincreases production.

Ross provides many designsspecialized to meet the needs ofdemanding applications. SanitaryDouble Planetary mixers, forexample, are available in all sizes,with a variety of polishes. Specialvalve options, including flushbottom radial diaphragm valvesand flush bottom ball valves, areavailable to simplify cleaning.

Ross offers many liftoptions to accommodate

the special needs of your application. In this

300-gal. Double Planetarymixer, a dual-post lift

offers increased strengthfor handling high-viscosity

materials. It also allowseasy handling of mix

vessels from either side of the mixer.

With heavy duty construction and exceptionaladaptability, the 1 quart Double Planetarymixer is our most popular size for laboratoryapplications – especially for small-scaleproduction leading to scale-up. The change-can design is ideal for use with an auxiliarydischarge system, to meet special handlingand filling requirements.

*Patent pending.

AUTOMATIC DISCHARGE SYSTEMS A follower plate discharge system, actuatedhydraulically or pneumatically, can dramaticallyimprove your production while it improves safety in your plant.

With a mix vessel precisely machined in ourown fabrication plant, discharge is fast andcomplete – even for many highly viscousmaterials. The batch material is often dischargeddirectly into bulk packaging, retail packaging, or conveying equipment.

By automating the discharge process, thesystem also reduces the risk of injury. Operatorscan now push a button instead of manuallyscooping the product out of the mix vessel. Thisreduces their exposure to the product andreduces the risk of injury while dischargingheavy products by hand.

DOUBLE PLANETARY MIXER OPERATIONIn a Ross Double Planetary Mixer, two planetaryblades rotate on their own axes, while they orbit themix vessel on a common axis. The bladescontinuously advance along the periphery of thevessel, removing material from the vessel wall andtransporting it to the interior.

This positive mixing action serves several purposes.

Complete mixing – In only a few minutes, the bladespass through every point in the vessel and promotefast and thorough mixing.

Efficient heat transfer – By preventing a layer ofmaterial from accumulating on the vessel wall, themixer ensures efficient heat transfer and evendistribution of heat throughout the batch – criticallyimportant concerns for heat-sensitive materials.

Now, ultra-high viscosity capacity with HV Blades –The mixer can handle materials of extremely highviscosities. With conventional blades, the DoublePlanetary Mixer can operate up to approximately1.5 million centipoise.* With Ross HV Blades, speciallydesigned for heavy materials, the operating limit ismuch higher – approximately 6 million centipoise.

* At very high levels, the measure of viscosity is an extremely subjectiveprocess. In addition, many variables besides viscosity must be consideredwhen determining the operating limits of any mixer. Contact Ross todiscuss the key parameters that must be considered in your application.

Double Planetary Mixer Applications

Abrasives – Grinding wheels

Adhesives – Silicones, epoxies, caulks

Batteries – Conventional and advanced fuel cells

Dental Composites – Pastes, gels

Electronics – Dense metallic slurries and thick film pastes

Metal Powder – Drying and blending

Plastics – Syntactic Foam, plastisols

Waste Treatment – Solidification for disposal

A variety of dischargeoptions allow you to reducematerial handling andincrease throughput. This2-gal Double Planetarymixer is equipped todischarge finished productdirectly into cartridges.

This 1/2-pint sanitary, stainless steelDPM Double Planetary mixeraddresses special requirements forcooling, heating, internal pressureand vacuum mixing. It is oftenselected for small-volume productioninvolving costly materials such asprecious metals and pharmaceuticals.

Auxiliary systems that make your planetary mixingsystem even more efficient.

Blade motion during 1 revolution

3 revolutions After only 36 revolu-tions, the blades of theDouble Planetary Mixerhave contacted virtually

the entire batch.

Double PlanetaryModel Horsepower Mix Capacity (Liters)

DPM-0.5 Pt. .33 .25-Pt. – .50-Pt. (.12 – .25)DPM-1 Pt. .33 .50-Pt. – 1 Pt. (.25 – .50)DPM-1 Qt. .50 .50-Pt. – 1 Qt. (.24 – .95)DPM-1 Gal. 1 1-Pt. – 3.5 Qt. (.50 – 3.3)DPM-2 Gal. 1 1 Qt. – 1.5 Gal. (.95 – 5.7)DPM-4 Gal. 1, 1.5 1 Qt. – 4 Gal. (.95 – 15.2)DPM-10 Gal. 2, 3, 5 2 Gal. – 12 Gal. (7.6 – 45)DPM-25 Gal. 5, 10, 15 5 Gal. – 25 Gal. (19 – 94)DPM-40 Gal. 5, 10, 15 5 Gal. – 40 Gal. (19 – 151)DPM-75 Gal. 10, 20, 30 10 Gal. – 75 Gal. (37.9 – 284)DPM-100 Gal. 10, 20, 30 10 Gal. – 100 Gal. (37.9 – 378)DPM-150 Gal. 20, 30, 40 20 Gal. – 150 Gal. (75.5 – 567)DPM-200 Gal. 20, 30, 40 30 Gal. – 200 Gal. (113.5 – 757)DPM-300 Gal. 50, 75, 100 75 Gal. – 300 Gal. (284 – 1,135)DPM-500 Gal. 150 150 – 500 Gal. (570 – 1,900)

Mixing Station

Cleaning Station

Discharge Station

Filling Station

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Controls Systems

Ross offers a complete line of control systems that are pre-programmed/pre-wired for turn-keystart-up and long-term flexibility. With manyoptions available, Ross can build multi-agitatorand PLC/PC-based control systems with all thefunctionality you need for efficient dataacquisition andprocess control.

Our newstreamlined, built-indesigns reducecabling while theysimplify maintenance.Routine operation isalso simplified.Intelligent menusreduce the risk oferror while they helpimprove processconsistency.

Ross control optionsinclude turn-keyautomation, datalogging,trend analysis, and asimple interface withyour PLC and productionmanagement system.

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LONG TERM QUALITY ASSURANCE – IN OURTEST AND DEVELOPMENT CENTERBefore you buy any mixer orblender, Ross strongly recom-mends a test in a well-equippedanalytical laboratory. In theRoss Test and DevelopmentCenter, you will have anopportunity to test using yourown ingredients and a varietyof equipment. A closesimulation of actual conditionson your process line isessential to accurately predictmachine performance.

Once you’ve identified theright mixer for your application,our mixing experts will helpyou fine-tune your process.Sophisticated analyticalinstruments enable us todocument each test sequenceand proceed methodically.

To learn more about ourextensive test facilities, visit ourwebsite: www.mixers.com.

SUPPORT YOU WON’T FIND ANYWHERE ELSERoss planetary mixers are engineered to outlast all others.They can provide many decades of service.

Throughout the life of your mixer, Ross stands beside youwith a complete package of support.

• World class experts on call – Experts with years ofexperience maintaining planetary mixers.

• Chances are we have your parts in stock – We maintainthe world’s largest inventory of spare parts – so you don’thave to. Even if you suddenly need a gearbox for a 30year old Ross Double Planetary Mixer, chances are wehave one ready to ship immediately. We ship most ordersfor spare parts in less than 48 hours.

Contact Ross today for detailedinformation on any of the products

and services we offer, or toschedule a test in the Ross

Test & Development Center, call 1-800-243-ROSS in the USA,

or 631-234-0500.Fax: 631-234-0691.

E-mail: sales@mixers.com.Or visit Ross on the web:

www.mixers.com

Charles Ross & Son Company710 Old Willets PathHauppauge, NY 11788-0615USA Tel.: 800-243-ROSSOverseas: 631-234-0500Fax: 631-234-0691E-mail: sales@mixers.comInternet: www.mixers.com

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