Rental of Electrical Air Compressors:

WE have a few new or almost new screw type oil flooded twin screw air compressors.

Main Motor Power : 

37 kw, ----- 2 units

75 kw. ----- 2 units

Maximum working pressure : 8 barg

Pre-Delivery Inspection *****

Many selection to choose from !!!!!

Dual Control for Rotary Screw Oil Flooded Air Compressors.

Increased Oil  [Coolant]  Consumption

1. 
 Blocked drainage [scavenging] line

2. 
Type of Oil [Coolant]
[ oil vapour content]







Rotary Compressor Coolant









One of the best for Rotary Screw & Vane Air Compressors


Mineral based, Long change intervals up to 8,000 hours.

Packing := 20 litres per pail


3. 

Over filled sump

4. 

Air Release
[Oil foam build-up]

Note: 

The oil separator tank  ( Vertical Design ) with separator element inside

Which Type of Screw Compressor are MOST efficient

Question ?

Which Type of Screws are most Efficient ?

*** Symmetry Profile vs Asymmetry Profile ! ***

Answer !

Asymmetry Rotors with both rotors of same rotor diameter

Asymmetry profile with same rotors diameter

Asymmetry Rotors with different rotors diameter ( Usually Male rotor have a bigger diameter than female one

A.

symmetry Profile ?

B.

Asymmetry Profile with same rotors diameter ?

C.

Asymmetry Profile with Big Male rotor and small female rotor ?

Which Air End have the best efficiency ?

What will be the answer ?

*****     A, B or C ?

Economic Service Life

Determinants: 

1. 

 Oil Care 

2. 

Selection of Oil / Coolant 

3.

 Operating Conditions 

Coolant ( Oil )

  1. 

 Oil Care 

Oil Change Interval! 

Oil Filter Change Interval! 

Air Filter Change Interval! 

Oil Compatibility Oil Contamination! 

  2. 

 Selection of Oil / [Coolant] 

Aging Resistance Insensitivity with Water Compressor Suitability Air Separation Efficiency 

Specially Blended for Malaysian, Hot and High Humidity Weather Conditions

  3. 

 Operating Conditions 

Ambient Temperature System Cooling Oil Temperature Foreign Harmful Bodies in Air

Oil Separators

Oil Separator

Air / Oil Separator Element

Rotary Screw Oil Flooded Air Compressors parts

( Only oil flooded screw Air Compressors )

Typical pleated element with higher surface area

Oil Separator Factory in Shanghai, China. 

Some internal structure of oil separator Element

Basic Operation Principles of Oil Separation

1. 

 Direct Interception 

2. 

Inertial impaction 

3. 

Diffusion 

  What will the effect? 

 Meaning, a 3 ppm rated Oil Separator Element, do not need to have a 3 micron rating, it is usually more than that, and it will get a 3 ppm performance on its' Oil Separator element. 

 Oil Separator Element Support!

Cool 0r Cool 

   

Note: 

The direction of Air Flow! Oil Separator Tank with Vertically installed Oil Separator 

Oil Separator Tank with Horizontally installed Oil Separator 

Many newer comes with Spin-On Oil Separators, especially on smaller capacity, so far it is use on compressors up to 150 hp Rotary Screw Air Compressors. 

These type may use up to 4 numbers of separators.

A typical Oil Separation & Oil Lubrication combination unit.

 

On the left, the white colour is an Spin-On Oil separator, 

on the right, is an oil filter mounted on a combination unit, 

include MPV and Themo valve. Commonly found on small capacity units

Failed Separator Housing: = 

Required to replace latest 3 years

 Production of tank type oil separator element ------ from factory