LG Series Stationary Screw Air Compressor

Meet and even exceed the requirement of national standard of GB19153-2003 Volumetric Air Compressor Energy Efficiency Limit Value.

Power: 7.5KW - 355KWWorking Pressure: 0.8Mpa / 1.0MPa / 1.3MPa Free Air Deliver: 0.8M3/min - 65M3/min

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Description

LG series screw air compressor adopts the design idea of "large rotor, large bearing and low speed". Its speed is 30-50% lower than other brands of compressors. It can reduce the noise, vibration and discharge temperature, enhance rotor rigidity, extends the service life, and also can reduce the sensibility to the impurities and oil carbon compounds.

The power range is within 4-355KW, where compressors with the power of 18.5-250KW are directly connected without gearbox, and the compressors with the power of 200KW and 250KW are 4-pole motor directly connected. And the rotate speed is lower to be 1480r/min.

Meet and even exceed the requirement of national standard of GB19153-2003 Volumetric Air Compressor Energy Efficiency Limit Value.

Feature

LG series screw air compressor has the following characteristics:

Adopt SKK brand, etc. of screw compressor main engine

Special rotor tooth profile provides each model of head with excellent performance

Firm axial and radial bearing

Use triple oil seal to eliminate the leakage problem

Through precisely hardened antifriction bearing with O sealing ring, with high maintainability

Humanized human machine interface display ctontrol system

Convenient and easy operation

Once the abnormal factor exists, hint for maintenance or repair

Reserved with standby output interface, and achieve multi-set interlocking control and remote diagnosis control

Imported microcomputer controller has strong fault diagnosis and protection function

Default phase protection: Any one phase or two phases of three-phase supply is disconnected, the power supply will be cut off automatically

Phase order protection: When phase order of three-phase supply is incorrect, it cannot be started

Overtemperature protection: If the discharge temperature exceeds the set value, the power supply will be cut off automatically

Unloaded protection: After operating unloaded for several minutes, it will automatically be stopped. And it will start up for operation when the air is required.

Automatic unloading: Firstly unload and then stop the machine, so as to avoid that the heavy vehicle is started

Air discharge quantity regulation: Automatically adjust the air discharge quantity and save the energy consumption

Low-consumption and high-efficiency motor

The starting torque is large

The insulation grade is Grade F and the protection grade is IP54

SKF bearing with low noise and long service life

Equipped with refueling device and refueling can be conducted under non-stop circumstance

Complete set of imported air quantity regulation system

Direct proportion valve and inverse proportion valve will make the feedback of pressure signal 100% to the servo cylinder and inlet control valve.

The inlet control valve implements 0-100% non-polar regulation for the air discharge, making the air demand and air consumption consistent and keep good energy-saving effect.

The temperature control valve is used for setting the opening and closing temperature and automatically adjusting the temperature of lubricating oil, making the viscosity of lubricating oil in the optimal condition, so as to ensure that the discharge temperature is higher than the temperature at pressure dew point, and the replacement period of lubricating oil is extended.

The minimum pressure valve is used for maintaining the injection pressure required by the body lubrication, reducing air velocity of oil-air separator, making the effect of oil-air separation in the optimal condition. And it has the function of check valve

Imported filter system

High-efficiency oil-air separator makes the oil content in the air discharge less than 3PPM

High-efficiency engine oil filter used for filtering the impurities in the lubricating oil, so as to provide head rotor and bearing with clean lubricating oil

High-efficiency air filter is used for filtering the dust and impurities in the suction air, so as to prevent the head rotor and bearing from being damaged.

It is equipped with differential pressure transducer. When the filter is blocked and difference between the front and rear pressure exceeds the setting value, it will automatically give the alarm to hint for maintenance or replacement

High-quality pressure controller and solenoid valve

When the pressure reaches up to the upper limit, the circuit of pressure controller will be automatically cut off; When the pressure is reduced to the lower limit, the electric arc will be automatically closed

Make on-off of point to point become on-off of air circuit through the solenoid valve

The product has high accuracy, reliability and long-term stability

It can be optionally equipped with frequency conversion control system

Specification

LG series screw air compressor 7.5KW-55KW LG series screw air compressor 75KW-355KW

Model	Working Pressure		Capacity (F.A.D)		Power	Noise	Connector	Dimension	Weight
Model	Bar	Psi	m³/min	CFM	(KW/HP)	dB(A)	Connector	mm	KG
LG-1.2/8	8	116	1.2	42	7.5 / 10	69	G1	9007001040	350
LG-1.0/10	10	145	1.0	35
LG-0.8/13	13	190	0.8	28
LG-1.7/8	8	116	1.7	60	11 / 15	71	G1	10608001230	450
LG-1.5/10	10	145	1.5	53
LG-1.2/13	13	190	1.2	42
LG-2.4/8	8	116	2.4	85	15 / 20	71	G1	10608001230	500
LG-2.2/10	10	145	2.2	78
LG-1.7/13	13	190	1.7	60
LG-3/8	8	116	3.0	106	18.5 / 25	71	G1	10808801415	650
LG-2.7/10	10	145	2.7	95
LG-2.3/13	13	190	2.3	81
LG-3.6/8	8	116	3.6	127	22 / 30	72	G1	10808801415	700
LG-3.2/10	10	145	3.2	113
LG-2.7/13	13	190	2.7	95
LG-5/8	8	116	5.0	176	30 / 40	73	G1½	130011001650	900
LG-4.5/10	10	145	4.5	159
LG-3.7/13	13	190	3.7	130
LG-6.2/8	8	116	6.2	219	37 / 50	73	G1½	130011001650	1000
LG-5.6/10	10	145	5.6	197
LG-4.8/13	13	190	4.8	169
LG-7.5/8	8	116	7.5	264	45 / 60	73	G1½	130011001650	1100
LG-6.9/10	10	145	6.9	243
LG-5.6/13	13	190	5.6	197
LG-10/8	8	116	10.0	352	55 / 75	74	G1½	150012501566	1250
LG-8.7/10	10	145	8.7	307
LG-7.5/13	13	190	7.5	264

LG series screw air compressor 75KW-355KW

Model	Working Pressure		Capacity (F.A.D)		Power	Noise	Connector	Dimension	Weight
Model	Bar	Psi	m³/min	CFM	(KW/HP)	dB(A)	Connector	mm	KG
LG-13/8G	8	116	13.0	458	75 / 100	75	G2	244011601620	1600
LG-11.6/10G	10	145	11.6	409
LG-9.3/13G	13	190	9.3	328
LG-16/8G	8	116	16.0	564	90 / 125	76	G2	256013001620	2100
LG-13.5/10G	10	145	13.5	476
LG-11.6/13	13	190	11.6	409
LG-20/8G	8	116	20.0	705	110/ 150	77	DN65	276013401710	2800
LG-16/10G	10	145	16.0	564
LG-13.5/13G	13	190	13.5	476
LG-22/8G	8	116	22.0	775	132/ 180	78	DN65	276013401710	2900
LG-20/10G	10	145	20.0	705
LG-16/13G	13	190	16.0	564
LG-27/8G	8	116	27.0	952	160/ 220	80	DN65	286015101810	3600
LG-23/10G	10	145	23.0	811
LG-20/13G	13	190	20.0	705
LG-30/8G	8	116	30.0	1057	185/ 250	81	DN80	340021002100	4500
LG-21/13G	13	190	21.0	740	185/ 250	81	DN80	340021002100	4500
LG-35/8G	8	116	35.0	1234	200/ 270	82	DN100	340021002100	4500
LG-30/10G	10	145	30.0	1057
LG-27/13G	13	190	27.0	952
LG-40/8G	8	116	40.0	1410	220/ 300	82	DN100	370022002200	5850
LG-46/8G	8	116	46.0	1621	250/ 340	82	DN100	370022002200	5950
LG-40/10G	10	145	40.0	1410	250/ 340	82	DN100	370022002200	5950
LG-58/8G	8	116	58.0	2044	315/ 425	83	DN125	420022002210	7200
LG-46/10G	10	145	46.0	1621	315/ 425	83	DN125	420022002210	7200
LG-65/8G	8	116	65.0	2291	355 /482	83	DN125	420022002210	7400
LG-58/10G	10	145	58.0	2044	355 /482	83	DN125	420022002210	7400