NEW 7A SERIES - FOROMAQUINAS · 2015. 5. 11. · 28,020(61,770) 700 (28) 800 (32) 900 (36) 710 (28) Specifications Engine Model Cummins QSB6.7 Type Water-cooled, 4 cycle Diesel,6-Cylinders

� Photo may include optional equipment

CRAWLER EXCAVATOR Applied Tier III Engine

NEW 7A SERIES

R250LC-7A_new_en 28-08-2007 12:02 Pagina 1

Robex 250LC-7A

Built for Maximum Power,Performance and Reliability.A new chapter in construction equipment has now begun.Making dreams come true.


02 / 03HYUNDAI CONSTRUCTION EQUIPMENT


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Robex 250LC-7A

Operator’s Comfort is Our Main Concern.Wide Cab Exceeding Industry Standards.

Technology in Cab Design

Visibility. Even better visibility than before. For safer, more efficient operation.

Excellent Ventilation. Ventilation is improved by a larger fresh air intake system and additional

air flow throughout the cab.. Sliding front and side windows for improved ventilation.. A large sunroof offers upward visibility and additional ventilation.

Comfortable Operator Environment. The control levers and seat can be adjusted to provide maximum comfort

for operator.. The seat is fully adjustable for optimum operating position, reducing

operator fatigue.. Console boxes slide forward and backward for improved accessibility.. The proportional pressure controls reduce unnecessary exertion while

ensuring precise operation.. Large windows allow excellent visibility in all directions.

Low noise design. The Robex 7A series was designed with low operation noise in mind.. Hyundai’s engineers made efforts to keep interior and exterior noise levels

to a minimum.. The cab's noise levels have been additionally reduced by improving the

door seals for the cab and engine compartments.. The use of an insulated engine compartment with sound-damping

material also reduces noise.

Wide, Comfortable Operating Space

Steel Cover Sunroof

Dial Type Engine Speed Switch and / Key Switch

Radio CD Control




Robex 250LC-7A

Improved Intelligent Display

Instrument Panel is installed in front of RHconsole box. It is easy to check all criticalsystems with easy-to-read indicators.

Minimization of Shock and Vibration

through Cab Mounting System

The application of the Viscous Mounting system to the cabinsupport provides the operator with a smoother ride.The operator work efficiency will increase as the shock and noiselevel in the cabin decreases.

Operating Environment

Storage box and Cup HolderAn additional storage box and cup holder are located behindoperator’s seat. The storage box keeps food and beverages cool or hot.

Wide Cab with Excellent VisibilityThe cab is roomy and ergonomically designed, ensuring low noiselevels and good visibility. A full view front window and large rear andside windows provide excellent visibility in all directions.

Wide, Comfortable Operating Space

All controls are designed and positionedaccording to the latest ergonomic research.Reinforced pillars have also been added forgreater cab rigidity.

Smooth Travel Pedal and Foot Rests


CAB

CAB


Maximum Protection

Highly Sensitive Joystick

and Easy EntranceNew joystick grips for precisecontrol have been equipped withmultiple switches.

Left• Power boost• One touch deceleration• Optional (2)

Right• Horn• Optional (3)

Easy-to-Reach

Control PanelsSwitches and other essentialcontrols are located near theoperator. This helps to keepoperator movement to aminimum, enhancing control with less operator fatigue.

Rear Emergency

Exit WindowRear Exit Window is designedwith an easy exit in emergencycases.

Raise-up Wiper and Cabin

LightsRaise-up wiper installed toenhance a better front view.Cabin Lights enhance safety bybrightly lighting the surroundingsin dark environments (optional).

Centralized control panel

Horn button

Option button

Remote Radio control

Travel lever

Cluster

One touch decel button

Hour meter

Travel pedal

Fully adjustable suspension seat

Safety lever

Power boost button

Joystick control lever

Air Conditioner and Heater controller

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The better working conditions in a pleasant environment


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Automatic Engine Overheat

Prevention

If the engine coolant temperaturegets too high, the CPU controllerlowers the engine speed so to coolthe engine.

Anti Restart System

The new system protects thestarter from re-starting duringengine operation, even if theoperator accidentally turns thestart key again.

Power boost control System

When the power boost system isactivated, digging power increasesabout 10%. It is especially usefulwhen extra power is temporarilyneeded, for instance, when digginghard earth and rock, or if thebucket teeth are stopped by astubborn tree root.

Automatic Warming-up

System

After the engine is started, if theengine coolant temperature is low,the CPU controller increases theengine speed and automaticallyincreases the pump flow rate towarm up the engine moreeffectively.

Advanced Hydraulic System

The advanced CAPO (ComputerAided Power Optimization)system maintains engine and mutual pump power atoptimum levels. Mode selectionsare designed for various workloads and maintaining highperformance while reducing fuel consumption. Features suchas auto deceleration and powerboost are included in the system.The system monitors enginespeed, coolant temperature, and hydraulic oil temperature.Contained within the system are self diagnostic capabilitieswhich are displayed by errorcodes on the cluster.

POWER MODE

H mode: High power S mode: Standard powerWORK MODE

Heavy duty work

General work

Breaker

USER MODE

M mode: Maximum PowerU mode : Memorizing Operator’s Preferable Power Setting

Auto Deceleration System

When remote-controlvalves are in neutralposition more than 4 seconds, CPUcontroller instructs theaccel actuator toreduce engine speedto 1050 rpm. This

decreases fuel consumption and reduces cab noise levels.

Max. Flow Cut-off System

For precise control and finishing work, the Max.Flow Cut-off System reduces pump flow, thusallowing smooth operation.

Self Diagnosis System

The CPU controller diagnoses problems in theCAPO system caused by electric and hydraulicmalfunctions and displays them on the LCD monitorof the cluster by error codes. This controller has thecapacity to identify 48 distinct types of errors. As theinformation from this device, such as engine rpm,main pump pressure, battery voltage, hyd.temperature, and status of all types of electricswitches, provides the operator with an exact stateof machine operating condition. This makes themachine easier to troubleshoot when somethinggoes wrong.

One Touch Decel System

When the one touch decel switch is pressed,the CPU controller reduces engine speed to lowidle 800 rpm. Once the one touch decel switchis pressed again, the engine speed recovers to itspreset RPM.

Pump Flow Control System

In neutral position: Pump flow is reduced to aminimum to eliminate power loss. In operation:Maximum pump flow is delivered to the cylindersto increase speed. With movement of the control

lever, pump flow is automatically adjusted and thecylinder speed is proportionally controlled.

Boom & Arm Holding System

The holding valves in the main control valve preventboom & arm lowering during an extended period in aneutral position.

Arm Flow Regeneration System

Arm flow regeneration valve provides smooth arm-in operation without cylinder cavitation.

Hydraulic Damper in Travel Pedal

Improved travel controllability & feeling during travelof the machine by use of shock reducing materials.

ADVANCED CAPO SYSTEM

NEW MODE CONTROL SYSTEM



The Definition of Progress

The Quantum System B Series 6.7-liter enginecombines full-authority electronic controls withthe reliable performance.The electronics with the QSB6.7 have beenproven with our high-horsepowerproductsworking in the harshest, mostdemanding environments-search as dusty, non-stop mining operations while meeting emissionsregulations worldwide.The QSB6.7 features 24 valve designed withcentered injectors and symmetrical piston bowl.The combination of improved airflow and evenlydispersed fuel results in increased power,improved transient reponse and reduced fuelconsumption.

CUMMINS

QSB6.7 EngineThe six cylinder 4 cycle TurboCharged Engine with Charged AirCooling, Has High Power output,Reliability, economical, and lowemission. This engine meetsTier III emissions regulations.

Strong and Stable Lower Frame

The reinforced box-section frame is all welded, with low-stress, high-strength steel. It guarantees safetyand resistance against external impact when driving on rough ground and working on wet sites. The useof highly durable upper and lower rollers and track guards ensures proper machine transfer on allterrains. The long undercarriage incorporates heavy duty excavator style components. An X-leg typecenter frame is integrally welded for maximum strength and durability.

Reinforced Bucket and Bucket Linkage

To prevent excessive wear of pins and bushes,sealed joints have been applied. Bucket linkdesign incorporates high durability and anti wearcharacteristics. Additional reinforcement plateson cutting edge section are welded. Thicker steeland an additional lateral plate are put in place toreinforce the bucket.

Powerful and Precise Swing Control

Improved shock absorbing characteristics makestopping swing movement a precise and smoothaction.

Track Rail Guide & Adjusters

Durable track rail guides keep track links in place. Track adjustment is made easy by using a standardgrease operated cylinder track adjusters including shock absorbing springs. (Full Track Guide: Option)

Increased Higher Performance


Robex 250LC-7A

Full open doors and master key system provide easy access for servicing.

Reliability & Serviceability

Side Cover with Left & Right Swing Open TypeEasy access to vital components gives unrestricted viewallowing easy maintenance and repair.

Centralized Electric Control Box

and Easy Change Air Cleaner

AssemblyElectric control box and Air cleaner arecentralized in one and the samecompartment for easy service.

Highly efficient Hydraulic PumpPump output and Hydraulic tank capacityhave been increased. A pilot pump has beeninstalled resulting in improved controlsensitivity.

Large tool box for extra storage

Easy to maintain engine components

The cooling and preheating system are provided for optimum andimmediate operation, guaranteeing longer engine and hydrauliccomponents life. Servicing the engine and hydraulics isconsiderably simplified due to total accessibility.



Durability of structure proven through

FEM (Finite Element Method) analysis

and long term durability test.


600 (24)

R250LC-7

R250LC-7 H/C

R250LC-7

R250LC-7 H/C

R250LC-7

R250LC-7 H/C

R250LC-7

R250NLC-7

R250LC-7 H/C

25,200(55,600)

25,100(55,300)

27,450(60,520)

0.51(7.25)

0.51(7.25)

0.53(7.54)

28,620(63,100) 0.46(6.54)

0.39(5.55)

0.41(5.83)

0.35(4.98)

0.44(6.26)

0.46(6.54)

25,800(56,900)

28,400(62,610)

26,100(57,500)

25,500(56,200)

28,020(61,770)700 (28)

800 (32)

900 (36)

710 (28)

Specifications

Engine

Model Cummins QSB6.7

TypeWater-cooled, 4 cycle Diesel, 6-Cylindersin line, direct injection, Turbocharged,Charged air cooled, Low emission

Ratedflywheel

horsepower

SAE

DIN

J1995 (gross)J1349 (net)

6271/1 (gross)6271/1 (net)

176 HP (131 kW) at 1,900 rpm163 HP (121 kW) at 1,900 rpm178 PS (131 kW) at 1,900 rpm165 PS (121 kW) at 1,900 rpm

81.4 kgf.m (589 lbf.ft) at 1,400 rpm107 mm (4.2 in) x 132 mm x (4.9 in)6,700 cc (409 in3)2 x 12 V x 100 AH24 V - 4.5 kW24 V - 50 Amp

Max. torqueBore x strokePiston displacementBatteriesStarting motorAlternator

Drives & Brakes

Drive methodDrive motorReduction systemMax. drawbar pullMax. travel speed(high) / (low)GradeabilityParking brake

Fully hydrostatic typeAxial piston motor, in-shoe designPlanetary reduction gear21,600 kgf (47,600 lbf)5.3 km/hr (3.3 mph) / 3.3 km/hr (2.0 mph)35° (70 %)Multi wet disc

Control

Operating Weight (approximate)

Pilot control

External Lights

Traveling and steeringEngine throttle

Two joysticks with one safety lever (LH): Swing and arm, (RH): Boom and bucket (ISO)

Pilot pressure operated joysticks and pedals with detachable lever providealmost effortless and fatigueless operation.

Operating weight, including 5,680 mm (18’ 8”) boom, 2,920 m (9’ 7”)arm, SAE heaped 0.92 m3 (1.20 yd3) backhoe bucket, lubricant, coolant, fullfuel tank, hydraulic tank and the standard equipment.

Major component weight

UpperstructureCounterweightBoom (with Arm cylinder)

5,520 kg (12,170 lb)4,600 kg (10,140 lb)2,280 kg (5,030 lb)

Hydraulic system

Main pump

TypeMax. flowSub-pump for pilot circuit

Two variable displacement piston pumps2 x 222 l/min (59.2 US gpm / 49.3 UK gpm)Gear pump

Cross-sensing and fuel saving pump systemHydraulic motors

TravelTwo speed axial piston motor with brake valve and parking brake

Swing Axial piston motor with automatic brakeRelief valve setting

Implement circuitsTravelPower boost (boom, arm, bucket)

Swing circuitPilot circuitService valve

330 kgf/cm2 (4,690 psi)330 kgf/cm2 (4,690 psi)360 kgf/cm2 (5,120 psi)275 kgf/cm2 (3,910 psi)35 kgf/cm2 (500 psi)Installed

Hydraulic cylinders

No. of cylinder - bore x rod x stroke

Boom: 2-140 x 95 x 1,345 mm (5.5” x 3.7” x 52.9”)Arm: 1-150 x 110 x 1,620mm (5.9” x 4.3” x 63.8”)Bucket: 1-135 x 90 x 1,185 mm (5.3” x 3.5” x 46.7”)

Swing motorSwing reductionSwing bearing lubricationSwing brakeSwing speed

Axial piston motorPlanetary gear reductionGrease-bathedMulti wet disc12 rpm

Swing System

Coolant & Lubricant Capacity

(refilling)

Fuel tankEngine coolantEngine oilSwing deviceFinal drive (each)Hydraulic system (including tank)Hydraulic tank

3403524

63.3

300190

89.89.26.31.6

0.8779.350.2

74.87.75.31.3

0.7366.041.8

liter US gal UK gal

Undercarriage

X-leg type center frame is integrally welded with reinforced box-sectiontrack frames. The undercarriage includes lubricated rollers, idlers, trackadjusters with shock absorbing spring and sprocket, assembled track chainswith double or triple grouser shoes.

Center frameTrack frameNo. of shoes on each sideNo. of carrier roller on each sideNo. of track roller on each sideNo. of track guard on each side

X - leg typePentagonal box type51292

Operating weight

Shoes Operating weight Ground pressure

Type Width mm (in)

Triplegrouser

Doublegrouse

Kg (lb) kgf/cm2 (psi)

Standard equipmentTwo levers with pedalsElectric, Dial type

Two lights mounted on the boom one under thebattery box

STD/HC

STD/HC



Backhoe attachment

Buckets

Capacity m3 (yd3) Width mm (in)Recommendation mm(ft.in)

Boom

ArmSAE

heapedCECE

heapedWithout

side cuttersWith

side cutters

Weight kg(lb)

Standard backhoe bucketHeavy-dutyRock bucket-Heavy duty

Applicable for materials with density of 2,000 kg / m3 (3,370 lb/ yd3) or lessApplicable for materials with density of 1,600 kg / m3 (2,700 lb/ yd3) or lessApplicable for materials with density of 1,100 kg / m3 (1,850 lb/ yd3) or less

Backhoe attachment

Boom and arms are of all-welded, low-stress, full-box section design. 5,850 mm (19’ 2”) boom and 2,100 mm (6’ 11”); 2,500 mm (8’ 2”); 3,050 mm (11’ 10”) arms areavailable. Hyundai Buckets are all-welded, high-strength steel implements.

Digging force

ArmLength mm (ft.in)

Weight kg (lb)Remark

[ ]: Power Boost

Bucketdiggingforce

Arm crowdforce

Note : Arm weight including bucket cylinder and linkage. Standard arm

SAE heaped

m3 (yd3)


mm (ft in)

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R250LC-7A

R250NLC-7A

L

5850 (19 ’ 2”)2100

(6’ 11”)

10050(33’ 0”)

3530(11’ 7”)

600

(24”)

3180

(10 ’ 5”)

2980

(9’ 9”)

700(28 ”)

3280(10’ 9”)

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800

(32”)

3380

(11 ’ 1”)

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900(36 ”)

3480(11’ 5”)

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3050

(10’ 0”)

9920

(32 ’ 7”)

3220

(10 ’ 7”)

2500(8’ 2”)

10000(32’ 10”)

3590(11’ 9”)

3600(11’ 10”)

9910(32’ 6”)

3590(11’ 9”)

Dimensions & Working ranges

Dimensions R250LC/NLC-7A

Tumbler distance

Overall length of crawler

Ground clearance of counterweight

Tail swing radius

Rear-end length

Overall width of upperstructure

Overall height of cab

Min. ground clearance

Track gauge

Boom length

Arm length

Overall length

Overall height of boom

Track shoe width

Overallwidth

Standard Equipment

Boom length

Arm length

Max. digging reach

Max. digging reachon ground

Max. digging depth

Max. digging depth(8' level)

Max. vertical walldigging depth

Max. diggingheight

Standard Equipment

Max. dumpingheight

Min. swing radius

Working ranges R250LC/NLC-7A


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D, D'

A

B

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C

F

G


Dimensions R250LC-7A High Chassis

Tumbler distance

Overall length of crawler

Ground clearance of counterweight

Tail swing radius

Rear-end length

Overall width of upperstructure

Overall height of cab

Min. ground clearance

Track gauge

Boom length

Arm length

Overall length

Overall height of boom

Track shoe width

Overall width

Standard Equipment

Boom length

Arm length

Max. digging reach

Max. digging reachon ground

Max. digging depth

Max. digging depth(8' level)

Max. vertical walldigging depth

Max. diggingheight

Standard Equipment

Max. dumpingheight

Min. swing radius

Working ranges R250LC-7A High Chassis


Lifting Capacities

Rating over-front Rating over-side or 360 degree

Load Pointheight m (ft)

Load radius At max. reach

Capacity

GroundLine

Reach

•• BBoooomm:: 5.85 m (19’ 2”) •• AArrmm:: 2.10 m (6’ 11”) •• BBuucckkeett:: 1.08 m3 SAE heaped •• SShhooee:: 600 mm (24”) triple grouser with 4,600 kg (10,140 lb) Counterweight



Capacity

GroundLine

Reach




Capacity

GroundLine

Reach


Lifting capacities R250LC-7A

1. Lifting capacity is based on SAE J1097, ISO 10567.2. Lifting capacity of the Robex Series does not exceed 75% of tipping load with

the machine on firm, level ground or 87% of full hydraulic capacity.

3. The load point is a hook (standard equipment) located on the back of the bucket.4. (*) indicates load limited by hydraulic capacity.

NOTES





Capacity

GroundLine

Reach




Capacity

GroundLine

Reach




Capacity

GroundLine

Reach


Rating over-front Rating over-side or 360 degreeLifting capacities R250NLC-7A




NOTES


Lifting Capacities

Rating over-front Rating over-side or 360 degree



Capacity

GroundLine

Reach




Capacity

GroundLine

Reach




Capacity

GroundLine

Reach


Lifting capacities R250LC-7A High Chassis




NOTES





Capacity

GroundLine

Reach




Capacity

GroundLine

Reach




Capacity

GroundLine

Reach





NOTES


Robex 250LC-7A

Standard Equipment

ISO standard cab• All-weather steel cab with all-around visibility• Safety glass windows• Rise-up type windshield wiper• Sliding fold-in front window• Sliding side window• Lockable door• Hot & cool box• Accessory box & Ash-tray• Sun visor for cabin inside

Air-conditioner (5000 kcal/hr, 20000 BTU/hr)FATC (Full Automatic Temperature Control)Computer Aided Power Optimization(New CAPO) system

• 2-power mode, 3-work mode, 2-user mode• Auto deceleration & one touch deceleration

system• Auto warm up system• Auto overheat prevention system

Self diagnostic systemStarting Aid (air grid heater), cold weatherCentralized monitoring

• LCD displayEngine speedClock & Error code

• GaugesFuel level gaugeEngine coolant temperature gaugeHyd. oil temperature gauge

• WarningFuel levelCheck Engine & CPUEngine oil pressureEngine coolant temperatureHyd. oil temperatureLow batteryAir cleaner clogging

• IndicatorPower maxPreheat & Engine warming-upOne touch decel

Door and cab locks, one keyAM/FM radio and CD Player

• Radio remote switchTwo outside rearview mirrorsFully adjustable suspension seat with seat beltSlidable joystic, pilot-operatedConsole box tilting system (LH.)Three front working lightsElectric hornBatteries (2 x 12V x 100 AH)Battery master switchRemovable clean out screen for Hyd. oil coolerAutomatic swing brakeRemovable reservoir tankWater separator, fuel lineBoom holding systemArm holding systemCounterweight (4600 kg, 10140 lb)Mono boom (5.85 m, 19’ 2”)Arm (3.05 m, 10’ 0”)Safety lock valve for boom cylinder

with overload warning deviceTrack shoes (600 mm, 24”)Track rail guardFuel filler pump (35 l/min, 9.5 USgpm)Single acting piping kit (breaker, etc)Double acting piping kit (cramshell, etc)

Optional Equipment

Heater & DefrosterBeacon lampSafety lock valve for arm cylinderAccumulator, work equipment lowering12 volt power outlet (24V DC to 12V DC converter)Electric transducerTravel alarmVarious optional Arms

• Super short arm (2.10 m, 6’ 11”)• Short arm (2.50 m, 8’ 2”)• Long arm (3.60 m, 11’ 10”)

Various optional Buckets (SAE heaped)• Standard bucket (1.08 m3, 1.41 yd3)• Narrow bucket (0.60 m3, 0.78 yd3)• Narrow bucket (0.79 m3, 1.03 yd3)• Narrow bucket (1.03 m3, 1.35 yd3)• Light duty bucket (1.50 m3, 1.96 yd3)• Heavy duty bucket (1.07 m3, 1.40 yd3)• Heavy duty bucket (1.15 m3, 1.50 yd3)• Heavy duty bucket (1.27 m3, 1.66 yd3)• Heavy duty bucket (1.46 m3, 1.91 yd3)• Rock bucket (1.16 m3, 1.52 yd3)

Cabin FOPS/FOG (ISO/DIS 10262)Cabin Roof-cover(Transparent type)Cabin lightsEngine emergency control cableTrack shoes

• Triple grousers shoe (700 mm, 28”)• Triple grousers shoe (800 mm, 32”)• Triple grousers shoe (900 mm, 36”)

Lower frame under coverPre heating systemFuel warmerTool kitOperator suitSpecial cooling

• Air vent type side door

Low noise kit

Standard and optional equipment may vary. Contact your Hyundai dealer for more information.The machine shown may vary according to International standards. All US measurement rounded off to nearest pounds or inches.

PLEASE CONTACT

www.hyundai-ce.com EN - 2007. 07 Rev 0.


Documents

NEW 7A SERIES - FOROMAQUINAS · 2015. 5. 11. · 28,020(61,770) 700 (28) 800 (32) 900 (36) 710 (28) Specifications Engine Model Cummins QSB6.7 Type Water-cooled, 4 cycle Diesel,6-Cylinders