LG SERIES

Air-Cooled & Water-Cooled Rotary Screw Air Compressors

7.5kw - 160kw, 60Hz (ISO)

KAISHAN COMPRESSORS

The New, Highly Efficient SKK Rotors

LG Series - Rotary Screw Air Compressors

1st Generation 2nd Generation

3rd Generation 4rd Generation

SKK series rotor profiles originated in England but are owned by Kaishan Compressor. The newest design has evolved from previous generations to meet today’s market re-quirements-“Energy and cost efficiency with greater capacity”. Our rugged airend contains two rotors, the male rotor has four lobes and the female rotor

has five flutes for compressors under 45KW and five male lobes and six female flutes ro-

tors for compressors above 55kw. SKK rotors utilize larger bearings and larger slower

turning rotors to produce more compressed air volume per KW. The clearance between

rotors is far smaller compared to competitors and the smaller leak path creates a highly

efficient lubricating film to reduce compression heat. Slower rotor speeds reduces the op-

erating sound level and vibration.

The Design Features of the LG Series

Our single-stage rotary screw airend is engineered for its durability. Larger rotors allows for bigger bear-ings, 30%-50% slower rotor speeds results in less power consumption, lower sound levels and reduced maintenance cost .

Our one piece bearing housing ensures both rotors are ridgely held by the bearings in proper alignment during transient periods such as machine startups/shutdowns or load changes.

SKF bearings and SEALTECH bearing seals are utilized in all airends.

All of our compressors have the latest inlet valve, airend air discharge port and oil inlet port design.

Lower sound (dBA) emission level than most of our competitors results in less sound pollution.

Kaishan offers complete, high quality, low cost LG series rotary screw air compressors.

They come configured as belt driven (7.5kw -18.5kw), optional gear driven, direct driven

(22kw –160kw) with discharge pressures from 0.7Mpa to 1.3Mpa. Water-cooled and air-

cooled units are available. PLC is a common feature for the LG series and is included in

VSD packages.

LG AIREND

High Efficiency Drive Motors

IEC high efficiency drive motors.

IP54 and high temperature F class rating.

Direct coupling design for extended bearing life.

Easy maintenance with grease refill port.

Integrated Microprocessor Controller

Easy to use and maintenance free.

Constant readout of pressure and temperature.

Selective readout of all operating and mainte-nance parameters.

Safety shutdown.

Provides 24hours automatic start-stop opera-tion.

Lead-lag and sequencing with multiple com-pressors.

The Design Features of the LG Series - continued

LG Series –Air Cooled Package

The axial and rotational loadings are supported by different bearings for better stiff-ness and less transition noise.

Simple package design requires only minimum maintenance for optimum perform-ance.

Continuous cooling and circulation of lubricating oil, ensures long airend operating life.

Electrical Control Protection

Versatile Package Control System

Phase protection. If one phase fails (from the three phases), the power breaker will trip.

Phase sequence protection relay. The unit will not start when failure occurs.

High discharge temperature shutdown.

Auto-dual control: If there is no system de-mand during the pre-set time delay, the com-pressor will shut down the drive motor. The control will restart the compressor when sys-tem pressure drops to the preselected pres-sure level.

Overload start protection. Automatic blow down during unloading before the unit shuts off ensures the unit does not start under load.

The unique design-Differential Pres-sure Valve- provides rapid response under any condition and maintains the set differential pressure between the inlet pressure and outlet pres-sure

100% modulating inlet valve to match system air demand. Our, continuous duty design achieves energy efficiency.

Highly reliable Thermal Regulation Valve allows optimal lubricant oil cooling before it is cycled back to the airend.

Minimum pressure check valve assures continuous pressure for lubricating the com-pressor, reduces oil foaming and protects the air-oil separator element.

Superior Filtration System

Ultra efficient Kerry inlet air filters provide clean air that traps dirt particles to less than 3 microns.

Easy spin on Kerry Oil filters.

Pressure differential gauges for easy filter maintenance.

Electronic Pressure Controller and Solenoid Valve

Highly reliable compact design.

Easy to install.

Fast response 2-way and 3-way solenoid valves.

Inlet valves with control valves

LG Series VSD Air Compressor

LG Variable Speed air compressors provide maximum efficiency with operating consis-

tency. Unlike the traditional “Auto-dual” and “Load/No load” control modes, LG VSD

modulate the speed of the drive motor in response to system demand. This results in

greater energy saving compared to a fixed speed compressor. Motor starting power

surges are greatly reduced by VSD features. Delivery of more constant air pressure ex-

tends valves life within the package.

Compressor Fluid & Cooling System

A custom-blended PAO synthetic hydro-carbon fluid provides:

Premium lubrication at high and low temperatures.

Reduced volatility properties.

Long life lubricant formulated with rust and oxidation inhibitors.

4000 hours fluid comes with standard units.

All LG compressors are built to be compatible with the optional VSD feature.

VSD Unit:

Industry leading VSD units are used in the LG series compressors package.

Compact VSD design allows a smaller footprint.

Monitors key functions of the unit.

Maintenance free.

The VSD minimizes starting current peak loads.

Extremely low sound level

Superior cooling system design for environments with high ambient temperatures and humidity levels.

LG Series Specification — 7.5 KW to 55 KW

Model

Discharge Pressure

Capacity FAD Main Mo-

tor Power Direct Drive

Noise Level Dimensions

(LxWxH) Weight

bar m3/min kW rpm dB(A) mm kg

LG 7.5-8 8 1.20

7.5 3550 70 900×700×1040 350 LG 7.5-10 10 1.00

LG 7.5-13 13 0.80

LG 11-8 8 1.75

11 3550 73 1060×800×1230 500 LG 11-10 10 1.50

LG 11-13 13 1.20

LG 15-8 8 2.40

15 3550 73 1060×800×1230 550 LG 15-10 10 2.20

LG 15-13 13 1.70

LG 18.5-8 8 3.00

18.5 3550 73 1080×880×1415 650 LG 18.5-10 10 2.70

LG 18.5-13 13 2.30

LG 22-8G 8 3.60

22 3550 73

1420×850×1110 650

LG 22-7/8 7/8 3.65

1080×880×1415 700 LG 22-10 10 3.30

LG 22-13 13 3.24

LG 30-7/8 7/8 4.92

30 3550 74 1300×1100×1650 1000 LG 30-10 10 4.24

LG 30-13 13 4.20

LG 37-8G 8 6.20

37 3550 74

1630×910×1220

1050

LG 37-7 7 6.83

1300×1100×1650 LG 37-8 8 6.83

LG 37-10 10 5.73

LG 37-13 13 4.77

LG 45-8G 8 7.10

45 3550 75

1778×1000×1300

1100 LG 45-7/8 7/8 7.30

1300×1100×1650 LG 45-10 10 6.63

LG 45-13 13 5.73

LG 55-8G 8 10.00

55 3550 75

1820×1160×1550

1500

LG 55-13G 13 7.50

LG 55-7/8 7/8 9.37

1620×1230×1670 LG 55-10 10 7.71

LG 55-13 13 6.53

LG Series Specification — 75 KW to 160 KW

The dimensions listed are for air-cooled units. Above 37kw, water-cooled units are available. Please con-tact the manufacturer for water-cooled units dimension. *G = Gear Driven

LG 75-8G 8 13.00

75 3550 76

2440×1160×1620

1900

LG 75-13G 13 10.00

LG 75-10G 10 12.00

LG 75-7/8 7/8 13.90

1580X1320X1646 LG 75-10 10 11.97

LG 75-13 13 10.55

LG 90-8G 8 16.00

90 3550 76 2560×1300×1620 2100

LG 90-10G 10 14.00

LG 90-13G 13 12.00

LG 90-7/8 7/8 17.17

LG 90-10 10 14.59

LG 90-13 13 12.03

LG 110-8G 8 20.00

110 3550 78 3000×1340×1910 3000

LG 110-10G 10 16.00

LG 110-13G 13 13.00

LG 110-7/8 7/8 20.32

LG 110-10 10 17.90

LG 110-13 13 14.39

LG 132-8G 8 24.00

132 3550 79 3000×1340×1910 3050

LG 132-10G 10 20.00

LG 132-13G 13 17.00

LG 132-7/8 7/8 22.79

LG 132-10 10 20.02

LG 132-13 13 19.92

LG 160-10 10 26.59 160 3550 81 2860x1510x1810 3600

LG 160-13 13 23.01

Kaishan Compressor Co. Ltd

Kaishan Compressor Co. Ltd 9 Kaixuan Ave West, Economic Zone Quzhou, Zhejiang China 324002 Phone: (86) 21 62882179 Fax: (86) 21 62884533 info@kaishancompressor.com www.kaishancompressor.com

Kaishan Compressor is the largest compressor manufacturer in China. In 2010, it produced and shipped 27,000 screw compressor units and 200,000 reciprocating compressor units. Kaishan Compressor has complete vertical integration of pro-duction for compressors, from the foundry plant, the airend plant, the pressure vessel plant, the sheet metal plant and the heat exchanger plant to the final unit and system assembly plant. Kaishan Compressor’s headquarters is located in Quzhou, Zhejiang Province, China, approximately 356 kilometers southwest of Shanghai, with its second larg-est manufacturing facility located in Shanghai, China. Kaishan Compressor cur-rently has 3000 employees.

Products Literature 1. Kaitec 20hp - 500 hp, 60Hz (NA) - P/N: KHE01NA60 2. Kaitec 15kw - 400 kw, 60Hz (ISO) - P/N: KHE01ISO60 3. Kaitec 15kw - 400 kw, 50Hz (ISO) - P/N: KHE01ISO50 4. Kaitain 20hp - 500 hp, 60Hz (NA) - P/N: JN01NA60 5. Kaitain 15kw - 400 kw, 60Hz (ISO) - P/N: JN01ISO60 6. Kaitain 15kw - 400 kw, 50Hz (ISO) - P/N: JN01ISO50 7. LG 7.5kw-200kw, 50Hz (ISO) - P/N: LG01ISO50 8. LG 7.5kw-160kw, 60Hz (ISO) - P/N: LG01ISO60