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Air Starter Air motor use compressed air as power vane type for diesel engine

Air Starter Air motor use compressed air as power vane type for diesel engine

Brand Name : Current
Model Number : AST600
Certification : CCS
Place of Origin : China
MOQ : 1
Price : 900
Payment Terms : T/T
Supply Ability : 1000
Delivery Time : 5 days after received Payment
Packaging Details : Standard Export Wooden Box
Application : Cummins NTA855 KTA19 Engine
Certificate : CCS
Teeth : 11
Type : vane air motor
Work air pressure : 0.4~0.8 Mpa
Max. output power : 7~17kw
Rated Speed : 2000~2100rpm
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How pneumatic starters work

When the engine starting sequence is initiated a rush of compressed air is released. This strikes the primary turbine wheel and causes it to rotate at high speed. As the air exits the first wheel it strikes each subsequent wheel causing each to turn. Eventually the wheels reach speeds of between 25 to 40 thousand rpm. This velocity is reduced by about 10:1 inside a planetary gearbox sitting just in front of the turbine mechanism.


Benefits of air starting

  • Guaranteed start: Guaranteed to start any diesel engine up to 150 litres. Air starters operate at pressures from 3 to 30 bar so are flexible enough to suit any application. This also allows them to use an existing air supply.
  • Performance in all conditions: Air starter motors are highly resistant to corrosion because of a cast iron casing and aluminium components. This makes them ideal for marine and offshore applications.
  • Low maintenance: Developed as an easy to install, fit-and-forget solution, our starter motors are resilient against wear and damage, needing no lubrication. They are totally maintenance-free.
  • Safe in hazardous areas: Pre-engaged hydraulic starters meet ATEX regulations for both gas and dust environments such as offshore, marine and mining.


1.Product Category:

No.

Model

Air Starter Characteristic

The length of Gear end and

Flange face

Output Gear Parameters


Adapter

Engine

Model


L


Teeth


Modulus

Modification coefficient


S

1

AST600B

31

12

4

0.28

35

8170 Series

2

AST600BL

31

12

4

0.28

35

8190 Series

3

AST600JRR

44

11

4.5

0.23

35

4

AST600JRL

44

11

4.5

0.23

35

5

AST600JLR

44

11

4.5

0.23

35

6

AST600JLL

44

11

4.5

0.23

35

7

AST600NTA855KTA19

46

11

DP6/8

0.31

30

Cummin-s NTA855 and KTA19 Series


2.Working Principle

AST600 Air Starter is comprise of power part and output part. The power part is vane pneumatic motor. When starting the diesel engine, the compressed air enter from pre-engagement air inlet hole of output part and push the output part and push the output gear to extrude forward, adjust automatically to ensure the correct engaging position. When the output gear reaches specified stroke, the compressed air is connected with air relay through pre-engagement air outlet hale. At this time, open main air circuit, the compressed air enter vane pneumatic motor part, and the motor starts to rotate which drive the diesel engine. After start-up o of diesel engine the said motor will overstep by overstep clutch. If the air source is cut off the output gear will draw back, the whole start-up process is completed.

3.Technical Characteristic

This product is used under the working air pressure no more than 0.8MPa. maximum power 17KW. The main technical parameters at different air pressure are as below:

Work air pressure MPa

0.4

0.5

0.63

0.8

Max. output power KW

7

9

12

17

Max output gear rotation r/min

1600

1730

1870

2030

Power output gear torque N.m

42

50

64

80

Parameter air consumption L/s

120

150

190

240





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