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Dongguan Ruitian Electrical Technology Co.,Ltd Scan,Visit The Website www.raettsgroup.com SERVICE HOTLINE:400-038-5808 RAETTS Explorer series air bearing blower •Super High-efficiency •Ultra-long Service Life •Ultra Low Noise •High Cost Performance (2019) RAETTS R Dongguan Ruitian Electrical Technology Co.,Ltd Add:RAETTS hi-tech park, No.20 Juyuan second road, Liaobu Town, Dongguan City,Guangdong Province Tel: +86(0769)8119 0028 Fax:+86(0769)8119 0038 Email: [email protected] German headquarters address: RAETTS GmbH Berliner Platz 1C, 38102 Braunschweig, Niedersachsen, Deutschland RAETTS R RAETTS high-speed centrifugal blower originated from North Rhine-Westphalia, Germany, in 1946. With nearly 70 years of experience in R&D, manufacturing and customer service of industrial blowers, it can provide customers with energy-saving, environmentally friendly and efficient high-speed centrifugal blowers. According to different industries and different use environments, we can customize a stable, reliable, energy-saving and efficient blower drying system. RAETTS Global Innovator Of Energy-saving Blower And Air Knife Drying System Solutions

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Dongguan Ruitian Electrical Technology Co.,LtdScan,Visit The

Websitewww.raettsgroup.com

SERVICE HOTLINE:400-038-5808

RAETTS Explorer series air bearing blower

•Super High-efficiency

•Ultra-long Service Life

•Ultra Low Noise

•High Cost Performance

(2019)

RAETTSR

Dongguan Ruitian Electrical Technology Co.,Ltd

Add:RAETTS hi-tech park, No.20 Juyuan second road, Liaobu Town, Dongguan City,Guangdong ProvinceTel: +86(0769)8119 0028Fax:+86(0769)8119 0038Email: [email protected]

German headquarters address:RAETTS GmbHBerliner Platz 1C, 38102 Braunschweig, Niedersachsen, Deutschland

RAETTSR

RAETTS high-speed centrifugal blower originated from North

Rhine-Westphalia, Germany, in 1946. With nearly 70 years of

experience in R&D, manufacturing and customer service of industrial

blowers, it can provide customers with energy-saving, environmentally

friendly and efficient high-speed centrifugal blowers. According to

different industries and different use environments, we can customize a

stable, reliable, energy-saving and efficient blower drying system.

RAETTS Global Innovator Of Energy-saving Blower And Air Knife Drying System Solutions

RAETTS Global innovator of energy-saving blower and air knife drying system solutions

CONTENTS

About Ruitian About RAETTS

01/02

Cooperate LayoutCooperation & Partners

03/04

Production EquipmentR & D Capabilities

05/06

The application caseIndustry application

07/08

Products Introduction

09/14

Successful cases

15/16

Selection table

17/18

Convenience of air bearing blower & Installation of blower

19/20The top of Germany's core technology

——RAETTS Explorer series air bearing blower

ABOUT RUITIAN

RAETTS Style

What kind of team is RAETTS?

Dongguan Ruitian Electrical Technology Co., Ltd. has a modern office environment and

office equipment. The employees were basically born in the 1980s and 1990s. We are a young,

energetic and positive team.

RAETTS STYLE

ABOUT RAETTS

PAGE ·ABOUT US01 PAGE ·

ABOUT RAETTS 02

Dongguan Ruitian Electrical Technology Co., Ltd. is a

national high-tech enterprise combined with research and

development, production and sales, and a supplier of global

energy-saving blower system solutions.RAETTS series

high-speed centrifugal blowers are widely used for electronic

semiconductors, food and medicine, wine and beverage,

automotive, sewage disposal , pneumatic conveying,

ultrasonic cleaning and drying, and any other industries.

RAETTS has also served thousands of companies and

provided more than 10,000 sets of blower drying systems and

solutions.

Inherited from German advanced f luid dynamics

technology and craftsmanship spirit, RAETTS also possesses

the world's advanced design concept and decades of

experience in blower industry. On the other hand, RAETTS has

unparalleled R&D capabilities and business philosophy.

Our products are based on solving the most difficult

point of customers. We always work for creating value for

customers and enhance the core competit iveness of

customers, thus achieving the sustainable development of

RAETTS, and continue to grow.

Today, RAETTS is not only represents a perfect blower,

but also a constant pursuit of high-end and precise

manufacture, what is more, is the firm determination of

China’s manufacturing to the world!

The RAETTS brand series products have won numerous

glory for Ruitian in every fields of the world and won the trust

of countless users all over the world.

Office Area Meeting Room

Showroom Exhibition In Oversea

We create value for our customers and provide the most cost-effective products and the best service.

RAETTS has been received high recognition from many famous companies such as Tenneco,Maersk,Samsung,Foxconn

Group ,Hisense Group, Changchun FAW, FAW Audi, GAC Toyota, BYD, Wuliangye Group, Luzhou Laojiao, China Jin Liquor,

Coca-cola,Snow Beer, Nestle, Gujing Distillery, Danone, C’estbon, Wahaha, Fuyao Glass, Master Kong, ZF, Maotai and other

well-known enterprises .

Corporation & partner

PAGE · CORPORATION & PARTNER03 PAGE · 04CORPORATE LAYOUT

Guangdong

Zhejiang

Beijing

shandong

Kunshan

Thailand

SpainSichuan

Germany

Italy

Since the establishment of the Asia Pacific Operations Center, RAETTS has successively set up assembly production base in

Guangdong and in Shanghai, Tianjin, Sichuan, Zhejiang and other places set up sales and service, technical support, warehousing

logistics network,to meet the growing needs of customers and provide the fastest service to Chinese customers. , service, technical

support, warehousing and logistics outlets.

Add:German industrial Park,Zhangpu

town,Kunshan City,Suzhou City,Jiangsu

Province.

02 Ruitian(Suzhou) Branch

Add:North side of the first floor of

Wuyun Village Committee Building, No.

2 Yangming North Road, Yuecheng

D i s t r i c t , Shaox ing C i t y ,Zhe j i ang

Province.

03 Shaoxing Office

Add: RAETTS hi-tech park, No.20 Juyuan

second road, Liaobu Town, Dongguan

City,Guangdong Province

01Guangdong Headquarter

Add:2206 Room,12th Building.Financial

Center,Jiale Century City,Jiangyang

District, Luzhou city,Sichuan Province.

05Southwest OfficeAdd:1604 Room,Building D,Weilan

International,No.5,Daqing Road,Xi’an

City,Shanxi Province.

06Northwest OfficeAdd:Building 81, No. 17, Jingsheng

South 4th Street, Tongzhou Jinqiao

T e c h n o l o g y I n d u s t r i a l B a s e ,

Zhongguancun Science and Technology

Park, Tongzhou District, Beijing City

04Beijing Office

Add:Youth Innovation Building No. 3999

Yidu East Road, Qingzhou City, Weifang,

Shandong Province.

07Shandong Office

Advantage:(Rooted in many provinces and cities, )

RAETTS is on the road.

R&D capabilities

R&D CAPABILITIESPAGE · 05

Our engineers have strived to achieve a perfect combination of utility and art when designing all

components of RAETTS and we have devoted ourselves to this all the times! Each component or material of the

RAETTS high-speed centrifugal blower is provided or co-developed by the world's leading manufacturers in

various field to ensure the safety and security operation of every blower from us.

PAGE · 06PRODUCTION EQUIPMENT

Production equipment

RAETTS air bearing centrifugal blower and air knife drying system are widely used in:

Industry application Application case show

raw material pressure conveying (grinding or granular raw material transportation), food and medicine processing engineering

(simplified and food, medicine, etc.) , metal processing engineering (paste/non-ferrous transportation and heat treatment, sludge

drying treatment), thermal power generation (coal grinding/FY-ash, fuel gas delivery (Oxidation)), sewage/wastewater treatment

project (sewage wastewater aeration) /GRIT, BACKWASH backwashing area), cement industry, chemical industry, semiconductor

industry, brewing industry, bio-pharmaceutical industry, fermentation industry, paper industry, textile printing and dyeing industry,

etc.

PAGE · 08THE APPLICATION CASEINDUSTRY APPLICATIONPAGE · 07

Noise comparison

papermaking industry

Thermal power industry

Cement industry

Sewage treatment industry

Textile printing and dyeing industry

Chemical Industry

Food Industry

Brewing industry

Fermentation industry

Semiconductor Industry

steel industry

Biopharmaceutical industry

Before the transformation: screw machine After the transformation: air bearing blower

RAETTS explorer air bearing blower

PAGE · 10PRODUCTS INTRODUCTIONPRODUCTS INTRODUCTIONPAGE ·09

Smart Touch Control Panel

Air Inlet Filter

Air Bearing + Ternary Flow Turbine + second Stage Compression Technology

Control System

inverter

Air bearing + ternary flow turbine + second stage compression technology

Permanent magnet inverter

The Explorer Series permanent magnet high-speed motor is composed of the most advanced German electromagnetic design technology and the permanent magnet inverter system independently developed by RAETTS. Based on the excellent motor second stage cooling technology, the wiring of the inverter is very simple. Secondly, the amount of hot gas generated by the inverter does not need to be treated separately, and the heat is taken in by the motor BOV system and discharged directly from the spout.

02

Control system

Exp lore r -Ser ies i s PLC or MCOM distinguish control. The communication s u p p o r t s R S 4 8 5 / R S 2 3 2 / t h e r n e t connection. The control is simple and convenient. All wiring is clear and easy to maintain.

03

Smart touch control panel

The Explorer-Series uses a 7 inch smart touch screen control panel to display f low, power , speed, a i r pressure , temperature and more. The model with more than 250 horsepower adopts the 10 inch intelligent touch screen control panel, which makes the operation more convenient and can rea l i ze more operation functions, such as START, LOAD, STOP and EMERGENCY functions, realize more intelligence.

01

Air inlet filter

The pure air filter cotton system does not have any lubricating oil (efficiency is increased by more than 85%), and it is more convenient to replace.

04

Air bearing + ternary flow turbine +second stage compression technology

The air-suspended motor drives the ternary flow high-efficiency turbine. Compared with other conventional blowers/compressors, the efficiency is increased by more than 25%. It is expected to recover the investment cost within about 2 years.

05 03

First stage compression technology Second stage compression technologycontrol systeminverterSmart touch control panel

PRODUCT EVOLUTION

PAGE ·PRODUCTS INTRODUCTION 12

From piston compressor to RAETTS air bearing centrifugal compressor, every promotion is a huge leap.

Piston compressor

Screw compressor

Traditional centrifugal compressor

Magnetic suspension centrifugal compressor

RAETTS air bearing centrifugal compressor

04

Unique Motor Cooling Technology

Explorer Series motors use a second stage cooling structure system for better cooling and stability. First stage is air-cooled inside the motor, and second stage are effectively cooled in the air bearing assembly and stator. This powerful two-stage cooling system is constructed in our motor without additional auxiliary cooling equipment (externally connected forced cooling fan, etc.).

03

Aerospace Aluminum Alloy ImpellerExplorer Series uses high-strength aerospace aluminum alloy impeller, designing precision can reach 0.001 mm to ensure high efficient of operation, surface treatment using hard anode and other treatment methods can also mainta in h igh ef f ic iency in harsh environment.Compared w i th o the r mate r i a l s , aluminum alloy is very light and suitable f o r h i g h - s p e e d r o t a t i o n o f a i r suspension bearings.

01

Ultra-high Permanent MagnetCore TechnologyExplorer Series permanent magnet synchronous motors have a h igh efficiency of over 95% and have good cooling effects unlike other general motors. With 15 years of motor design experience, we have developed the world's most efficient and stable PM M O T O R p e r m a n e n t m a g n e t synchronous high speed motor.

02

Air Bearing Technology

100% pure oil-free suspension bearing, no mechanical friction, service life can reach semi-permanent. No mechanical noise, no mechanical vibration, simply conveying air. Since 2000, it has been widely used in large and medium-sized industrial machinery. Compared with oil bearing, its simple structure can start stably at high temperature. It has the best suspension ability in permanent magnet high-speed motor, and does not need complex sensor system.

05

Second stage compression technologyThe pressure below 1 .2kg adopts one-stage air compression technology, and the pressure between 1.2kg and 4kg adopts second stage air bearing compression technology, which has very high efficiency.

What stage is your gas supply system at present?

Evolution of Compressor

Evolution of Blower

PAGE · PRODUCTS INTRODUCTION11

From the vortex high-pressure blower to the RAETTS air bearing blower, every promotion is a huge leap.

RAETTS changes from vortex high-pressure blowers to Roots blowers, to screw blowers, single-stage centrifugal blowers to RAETTS air bearing blowers. RAETTS tries its best to serve customers.

Vortex high-pressure blowers

Roots blowers

Screw blowers

Single-stage centrifugal blowers

RAETTS air bearing blowers

1

2

3

54

The magnetic suspension centrifugal blower is a high-efficiency new type of blower, which integrates the magnetic suspension

bearing technology and the high-speed motor technology into the traditional blower. The air bearing centrifugal blower adopts the

integrated design concept of air bearing and permanent magnet synchronous super high speed motor (20,000 rpm), abandons the

gearbox accelerator and coupling and lubrication system of traditional centrifugal blower, and is the most efficient centrifugal

blower in the world at present.

Fully utilizing an electrical induction system for suspension

The most efficient centrifugal blower at present

Complex structure Simple structure

Complex structure Simple design

Suspension using an induction system Mechanized design using air suspension bearings

- 5 ~ - 10%(Basic consumption + Energy consumption for cooling)

- 0.5% ~ -1%

Complex design structure, high heat generation and high failure rate

Simple design structure, low heat generation and long service life

Water cooling mode plus blower for cooling and water pump for circulation are needed.

Complete air cooling system (can operate below 250 degrees without additional cooling.)

Electromagnetic induction system (motor system)

Air Bearing (Mechanical Design System)

Compared with magnetic suspension centrifugal blower

PAGE ·PRODUCTS INTRODUCTION 14PAGE ·

PRODUCTS INTRODUCTION13

Characteristics of air bearing blowers

Mechanical structure

Electrical characteristics

Bearing cooling structure

Total efficiency

Maintenance

Conclusion

Air bearing turbo blower is simple in structure, easy to maintain and durable

The magnetic bearing centrifugal blower must be cooled below 70°C,then can use proximity sensor.

Air bearing centrifugal blower has no bearing controller, no proximity sensor, simple wiring and low failure rate.

The efficiency of air bearing centrifugal blower without water cooling is increased by5-10%.

Compared with complex structure and wiring of the magnetic suspension centrifugal blower, air bearing blower is easier to maintain.

It is reasonable to introduce an air bearing blower, and overall operation of the blower is good.

Our honor

Conclusion after comparison:

It is advisable to choose RAETTS air bearing blower. The advantages of this type

blowers are superior to those of the magnetic suspension blower.

对比Air bearing blowerMagnetic suspension

centrifugal blower

Operation principle

Product structure

Core structure

Motor

Bearing form

The third prize of China Innovation and

Entrepreneurship Competition

Certificate of high and new technology products in Guangdong Province

ISO9001 Certificate CE Certificate

Dongguan Brand Competition Special Award

Legal Counsel Certificate High and New Technology Enterprises Certificate

Member of Dongguan Hi-tech Enterprise Associate

Bearing driving mode

Cooling method

Bearing efficiency

Classification

Comparison

Master Kong Group is a leading beverage company. Its production plant, locating in the Luogang Development Zone in

Guangzhou, is the beverage production center radiating the whole South China area. It has advanced filling production line and the

best production efficiency in the whole country. It has large sewage treatment stations in the plant. The aerobic pool of the sewage

station used traditional Roots blower for aeration operation to ensure the biological reaction in the pool goes smoothly and

achieve the purpose of sewage treatment.

In recent years, with the change of national policy and increasingly fierce market competition, energy saving and reducing

production costs have become an important means for enterprises to improve market competition. Customers have adopted

RAETTS's air knife drying system in the production line in the earlier stage, and have achieved good energy-saving effect. It is

learned that RAETTS is also producing air bearing blower for sewage treatment. So they hope RAETTS can help them achieve

greater energy-saving.

PAGE ·SUCCESSFUL CASES 16PAGE ·

SUCCESSFUL CASES15

Large sewage treatment stations of Master Kong Group

SUCCESSFUL CASESComparison of operating benefit between Roots blower and RAETTS air bearing blower

Blower type Roots Blower Air Bearing Blower

Brand Haifude RAETTS

Blower Model HSR150 EXPL50-06

Blower Number 2 1

Outlet Pressure (KPA) 58.8 60

Air Volume(m³/MIN) 13.17*2 26.34

Motor Power (KW) 22*2 37

Operating Power (KW) 44 29

Total annual power consumption (KW.H)(8400h/year) 369600 243600

Total annual electricity charge (RMB) (RMB 1/KW.H) 369600 243600

Total annual maintenance cost (RMB) 10000 1800

Total annual operating cost (RMB) 379600

Annual cost savings (RMB) 134200

Months of investment recovery 24

245400

RAETTS blower remote monitoring system

Customer demand: Qs= 26.34 m3/min, Pd= 6,000 mmAq ( 20.0 ℃)

Qs= Air volume = 26.3 m3/min

Ts= Inlet temperature = 293.15 KPs= Inlet air pressure = 101.325 kPAPd= Dynamic pressure = 160.16 kPAη0= Total efficiency = 0.7

ρs = Air pressure = 1.2043 kg/m3

Cp= Air specific heat = 1.0045 kJ/kg/K

(Qs/60)*ρs*C p *Ts*((P d /Ps) (1/3.5)-1)= 21.8 kW ( 78.5 ℃)• Theoretic power consumption:

• Therefore:

Total power consumption= Theoretic power /Total efficiency = 31.1kW = 41.7 hp

Motor power consumption = Total power consumption * Inverter consumption = 29.8kW

Shaft Power = Motor power consumption *Motor efficiency = 28.3kW = 38.0 hp

Power Consumption :

RAETTS final selected model is EXPL50-06 37kW

RAETTS 's technicians visited the site and found customers’ existing situation of sewage stations as follows:

On site Roots blower parameters: boost: 58.8KPa, flow: 13.17m3/min, power 22KW*4 sets(Two in use, two in reserve) , gas

supply in parallel, 2 blowers with 44 kW energy consumption. RAETTS super blower is designed with the most advanced

three-dimensional flow technology. The highest point efficiency of single blower is 87%. According to the above parameters,

the selection calculation as shown in the right figure:

RAETTS Air bearing blower PowerConsumption CalculationInlet/outlet temperature

Before transformation: After transformation:

A RAETTS Explorer air bearing blower is installed in the sewage station, remove one of the original blowers(one in use, three in

reserve). After the transformation, RAETTS explorer air bearing blower can save 130,000 RMB in electricity costs per year. The

investment cost can be fully recovered within 24 months. At the same time, a large number of labor maintenance costs will be

saved. The noise of the engine room will be reduced to less than 80 db, which meets the latest noise exhaust standards required by

the environmental protection department. It greatly reduces the operating cost of the factory, and gains more advantages for the

enterprise in the market competition.

PAGE ·SELECTION TABLE 18PAGE ·

SELECTION TABLE17

Compressor selection table

W L

Main view Right view

EXPL50-1.5

EXPL50-2.0

EXPL50-3.0

EXPL75-1.5

EXPL75-2.0

EXPL75-3.0

EXPL100-1.5

EXPL100-2.0

EXPL100-3.0

EXPL100-4.0

EXPL150-1.5

EXPL150-2.0

EXPL150-3.0

EXPL150-4.0

EXPL200-1.5

EXPL200-2.0

EXPL200-3.0

EXPL200-4.0

EXPL300-1.5

EXPL300-2.0

EXPL300-3.0

EXPL300-4.0

EXPL400-1.5

EXPL400-2.0

Type

TWIN

TWIN

TWIN

Model

50

75

100

150

200

300

16

12

10

24

18

15

100

69

55

82

51

40

35

25

69

55

45

34

96

75

62

51

140

100

MotorPower(HP)

Flow(m3/min)

Pressure(bar)

Outletdiameter

1.5

2.0

3.0

1.5

2. 0

3. 0

1. 5

2. 0

3. 0

1.5

2.0

3.0

4.0

1.5

2.0

3.0

4.0

1.5

2.0

3.0

4.0

1.5

2.0

125

150

150

200

-

250

200

300

250

350

Size (mm)

W L H

Weight(Kg) Remarks

530

735

735

1040

1045

1,600

1,350

1,500

1,500

1,700

1,700

2,100

1,600

1,750

1,750

1,950

1,950

2,350

700

850

850

1,000

1,000

1,300

4. 0

Wind cooling

Water cooling

Wind cooling

Water cooling

Wind cooling

Water cooling

Wind cooling

Water cooling

Wind cooling

Water cooling

Wind cooling

Water cooling

Wind cooling

Water cooling

EXPL400-3.0

EXPL400-4.0

TWIN400

75

67

3.0

4.0300

2,0002,0003,0001,600

TWIN

TWIN

TWIN

Compressor parameter selection table

EXPL30-06

EXPL30-08

EXPL50-06

EXPL50-08

EXPL75-04

EXPL75-06

EXPL75-08

EXPL75-10

EXPL100-04

EXPL100-06

EXPL100-08

EXPL125-06

EXPL125-08

EXPL150-06

EXPL150-08

EXPL150-10

EXPL200-06

EXPL200-08

EXPL200-10

EXPL250-06

EXPL250-08

EXPL250-10

EXPL200-04

EXPL300-06

EXPL300-08

EXPL300-10

EXPL400-06

EXPL400-08

EXPL400-10

EXPL500-06

EXPL500-08

EXPL500-10

EXPL600-06

EXPL600-08

EXPL600-10

Type

SINGLE

SINGLE

SINGLE

SINGLE

SINGLE

SINGLE

SINGLE

SINGLE

TWIN

TWIN

TWIN

TWIN

TWIN

Model

30

50

75

100

125

150

200

250

200

300

400

500

600

20

17

34

28

75

51

42

34

100

69

55

82

70

105

84

65

140

109

87

160

135

104

200

210

164

133

272

216

172

320

270

208

420

320

260

Moto Power

(HP)

Flow(m3/min)

Pressure(bar)

Outletdiameter

0.6

0.8

0.6

0.8

0.4

0.6

0.8

1

0.4

0.6

0.8

0.6

0.8

0.6

0.8

1

0.6

0.8

1

0.6

0.8

1

0.4

0.6

0.8

1

0.6

0.8

1

0.6

0.8

1

0.6

0.8

1

150

150

150

150

200

200

200

200

300

200

200

250

250

300

250

250

300

300

250

300

300

300

500

400

400

400

500

400

400

500

500

400

600

600

500

Size (mm)

W L H

Weight(Kg) Remarks

530

530

735

735

1035

1040

1045

1080

910

1,600

2,000

2,000

2,500

1,350

1,350

1,500

1,500

1,700

1,700

1,700

1,700

1,700

2,100

2,000

2,100

2,000

1,600

1,600

1,750

1,750

1,950

1,950

1,950

1,950

1,950

2,350

3,000

3,200

3,500

700

700

850

850

1,000

1,000

1,000

1,000

1,000

1,300

1,600

1,750

1,900

H

W

L

W: Width

L: Length

H: Height

Air bearing blower parameter selection table

PAGE ·INSTALLATION OF BLOWER 20PAGE ·

CONVENIENCE OF EXPLORER AIR BEARING BLOWER19

Installation of blowerConvenience of explorer air bearing blower

Simple Maintenance

• Just need to replace new filters periodically.

• Use filters and filter cotton to improve

the quality of compressed air.

• Use high quality special filter to reduce pressure loss.

Low noise and low vibration

• With air bearing direct connection technology, no mechanical wear, only

75-80 db@1m low noise.

• No need for sound insulation.

• Centrifugal blower for continuous inhalation and exhaustion

• Vibration of the product itself is ZERO level.

Convenient remote control

• Real remote control can be achieved at any time and anywhere through a

variety of network facilities such as Internet, mobile network, telephone and

so on.

Plug and play, simple installation

• Almost no vibration when the equipment is running, no need to use the ground

anchor and no additional operation..

• Installation will be completed by placing the equipment where necessary and

connecting the power supply and pipeline.

• Horizontal support foot can be adjusted under blower for easy leveling and

installation.

On-site installation(for reference)

• Enhanced ventilation

• In order to prevent the temperature of blower room from rising, the exhaust

pipe should be insulated by heat treatment.

• Motor cooling air is exhausted outdoors through pipes

• Pipe connection sequence: elastic joint→check valve→elbow→outlet silencer

• Installation in the pipeline is as follows

Mobile Network Internet Telephone

RAETTS R

Exhaust fan

Motor cooling air is exhausted

Blower roomfilter

Outlet silencer

Selectable height (according to

installation of blower pipe)

Equipment referenceheight