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בית » מוצרים » Air Motors LZB77 & LZB78 2.3-3.2 kW

Air Motors LZB77 & LZB78 2.3-3.2 kW

Name: Air Motors LZB77 & LZB78 2.3-3.2 kW
Brand: Atlas Copco

LZB77 & LZB78 series, ultra-powerful heavy-duty air motors for extreme applications.

Air Motors LZB77 & LZB78 2.3-3.2 kW

Air Motors LZB77 & LZB78 represent the pinnacle of heavy-duty pneumatic propulsion, delivering massive power output up to 3.2 kW. These series, classified as high-performance pneumatic air motors, are engineered to drive the most demanding industrial applications without lubrication, ensuring absolute reliability under extreme loads.

The LZB77 and LZB78 series use robust planetary gearing to produce high stall torque, up to approximately 580 Nm in the LZB77 and nearly 1,000 Nm in low-speed LZB78 models. Lubrication-free dry vane technology prevents oil contamination in sensitive environments. The rugged construction withstands shock, heat and humidity during continuous operation. Both series carry ATEX certification for explosive gas and dust atmospheres and are suited to chemical, mining and material-handling applications. Model-selection guidance is available through the Air Motor Selection Tool and the full Air Motors catalog.

Key Features of Air Motors LZB77 & LZB78

Extreme Power Output: High-performance motors delivering up to 3.22 kW (LZB78), suitable for driving extra-heavy loads like large winches and industrial mixers.
Massive Torque: Capable of generating static stall torque up to 969 Nm (Model LZB78-L-A0012), ensuring reliable starting and overcoming high resistance.
Clean & Efficient: Lube-free technology reduces maintenance costs, prevents environmental pollution, and eliminates the need for airline lubricators.
Certified Safety: Compliant with strict ATEX standards (Ex II 2GD / Ex h IIIC) for safe operation in hazardous environments containing flammable gases or dust.

Frequently Asked Questions

Q: What is the main difference between LZB77 and LZB78?
A: While sharing a similar robust design, the LZB78 series offers higher power output (approx. 3.2 kW vs 2.8 kW) and stronger torque capabilities for applications requiring that extra edge.

Q: What applications are these motors suitable for?
A: These motors are designed for heavy-duty tasks such as lifting operations, driving long and loaded conveyors, opening large valves, and mixing viscous materials in the chemical industry.

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Technical Data – LZB77-L Vane Motors (Lubrication Free)

Model	Max Output		Speed at Max Output (r/min)	Torque at Max Output		Min Starting Torque		Stall Torque		Free Speed (r/min)	Air Consumption		Weight (kg)	Shaft Load Code	ATEX Code	Ordering No.
Model	kW	hp	Speed at Max Output (r/min)	Nm	lb-ft	Nm	lb-ft	Nm	lb-ft	Free Speed (r/min)	l/s	cfm	Weight (kg)	Shaft Load Code	ATEX Code	Ordering No.
Clockwise rotation (Keyed shaft)
LZB77-L-A027-15	2.80	3.75	1,220	22	16	35	26	44	32	2,600	110	52	18.5	h	Ex II 2GD h T4 IIC T110 °C	8411070025
LZB77-L-A008-15	2.77	3.71	350	75	55	121	89	150	111	750	110	52	18.5	h	Ex II 2GD h T6 IIC T85 °C	8411070070
LZB77-L-A007-15	3.71	2.77	310	85	63	137	101	170	125	660	52	110	18.5	h	Ex II 2GD h T6 IIC T85 °C	8411070017
LZB77-L-A005-15	2.77	3.71	210	123	91	199	147	246	181	460	110	52	18.5	h	Ex II 2GD h T6 IIC T85 °C	8411070088
LZB77-L-A004-15	3.71	2.77	160	166	122	269	198	332	245	340	110	52	18.5	h	Ex II 2GD h T6 IIC T85 °C	8411070096
LZB77-L-A0020-15	2.74	3.67	90	216	293	474	350	586	432	190	110	52	19.1	h	Ex II 2GD h T6 IIC T85 °C	8411070100
LZB77-L-A0017-15	2.74	3.67	80	332	245	536	395	664	490	165	52	110	19.1	h	Ex II 2GD h T6 IIC T85 °C	8411070009

Technical Data – LZB77-L-AR Vane Motors (Reversible, Lubrication Free)

Model	Max Output		Speed at Max Output (r/min)	Torque at Max Output		Min Starting Torque		Stall Torque		Free Speed (r/min)	Air Consumption		Weight (kg)	Shaft Load Code	ATEX Code	Ordering No.
Model	kW	hp	Speed at Max Output (r/min)	Nm	lb-ft	Nm	lb-ft	Nm	lb-ft	Free Speed (r/min)	l/s	cfm	Weight (kg)	Shaft Load Code	ATEX Code	Ordering No.
Reversible (Keyed shaft)
LZB77-L-AR024-15	2.40	3.22	1,280	18	13.3	24	18	36	27	2,300	52	110	18.5	h	Ex II 2GD h T4 IIC T110 °C	8411070058
LZB77-L-AR007-15	3.19	2.38	370	46	62	62	84	91	124	680	110	52	18.5	h	Ex II 2GD h T6 IIC T85 °C	8411070118
LZB77-L-AR006-15	3.19	2.38	320	52	70	71	96	103	140	600	52	110	18.5	h	Ex II 2GD h T6 IIC T85 °C	8411070041
LZB77-L-AR004-15	3.19	2.38	220	75	102	103	139	204	150	420	52	110	18.5	h	Ex II 2GD h T6 IIC T85 °C	8411070126
LZB77-L-AR003-15	2.38	3.19	170	101	137	188	139	274	202	310	52	110	18.5	h	Ex II 2GD h T6 IIC T85 °C	8411070134
LZB77-L-AR0018-15	2.35	3.15	95	242	178	331	244	357	484	170	110	52	19.1	h	Ex II 2GD h T6 IIC T85 °C	8411070142
LZB77-L-AR0015-15	3.15	2.35	80	202	274	276	374	404	548	155	110	52	19.1	h	Ex II 2GD h T6 IIC T85 °C	8411070033

Technical Data – LZB78-L Vane Motors (Lubrication Free – Clockwise Rotation)

Model	Max Output		Speed at Max Output (r/min)	Torque at Max Output		Min Starting Torque		Stall Torque		Free Speed (r/min)	Air Consumption		Weight (kg)	ATEX Code	Ordering No.
Model	kW	hp	Speed at Max Output (r/min)	Nm	lb-ft	Nm	lb-ft	Nm	lb-ft	Free Speed (r/min)	l/s	cfm	Weight (kg)	ATEX Code	Ordering No.
Clockwise rotation (Keyed shaft)
LZB78-L-A027-15	3.22	4.32	1,539	20	14.8	34	25.1	43	31.7	2,850	56	116	8	Ex II 2 D Ex h IIIC T110 °C Db	8411070191
LZB78-L-A018-15	3.22	4.32	1,064	29	21.4	50	36.9	61	45.0	1,970	56	116	8	Ex II 2 D Ex h IIIC T110 °C Db	8411070201
LZB78-L-A013-15	3.22	4.32	786	39	28.8	67	49.4	83	61.2	1,650	56	116	8	Ex II 2 D Ex h IIIC T110 °C Db	8411070219
LZB78-L-A008-15	3.19	4.28	433	70	51.6	121	89.2	150	110.6	800	56	116	8.4	Ex II 2 D Ex h IIIC T85 °C Db	8411070227
LZB78-L-A007-15	3.19	4.28	381	80	59.0	137	101.0	170	125.4	710	56	116	8.4	Ex II 2 D Ex h IIIC T85 °C Db	8411070235
LZB78-L-A005-15	3.19	4.28	263	116	85.6	199	146.8	246	181.4	490	56	116	8.4	Ex II 2 D Ex h IIIC T85 °C Db	8411070243
LZB78-L-A004-15	3.19	4.28	195	157	115.8	269	198.4	332	244.9	360	56	116	8.4	Ex II 2 D Ex h IIIC T85 °C Db	8411070250
LZB78-L-A0020-15	3.16	4.23	109	278	205.0	474	349.6	586	432.2	200	56	116	8.6	Ex II 2 D Ex h IIIC T85 °C Db	8411070268
LZB78-L-A0017-15	3.16	4.23	96	315	232.3	536	395.3	664	489.7	180	56	116	8.6	Ex II 2 D Ex h IIIC T85 °C Db	8411070276
LZB78-L-A0012-11	3.16	4.23	66	456	336.3	781	576.0	969	714.7	125	56	116	8.7	Ex II 2 D Ex h IIIC T85 °C Db	8411070284

Technical Data – LZB78-L-AR Vane Motors (Lubrication Free – Reversible)

Model	Max Output		Speed at Max Output (r/min)	Torque at Max Output		Min Starting Torque		Stall Torque		Free Speed (r/min)	Air Consumption		Weight (kg)	ATEX Code	Ordering No.
Model	kW	hp	Speed at Max Output (r/min)	Nm	lb-ft	Nm	lb-ft	Nm	lb-ft	Free Speed (r/min)	l/s	cfm	Weight (kg)	ATEX Code	Ordering No.
Reversible
LZB78-L-AR024-15	2.86	3.84	1,466	19	14.0	24	17.7	36	26.6	2,540	52	110	8	Ex II 2 D Ex h IIIC T110 °C Db	8411070292
LZB78-L-AR016-15	2.86	3.84	1,013	27	19.9	34	25.1	50	36.9	1,760	52	110	8	Ex II 2 D Ex h IIIC T110 °C Db	8411070300
LZB78-L-AR012-15	2.86	3.84	749	37	27.3	68	50.1	46	33.9	1,300	52	110	8	Ex II 2 D Ex h IIIC T110 °C Db	8411070318
LZB78-L-AR007-15	2.83	3.80	412	66	48.7	84	62.0	124	91.5	720	52	110	8.4	Ex II 2 D Ex h IIIC T85 °C Db	8411070326
LZB78-L-AR006-15	2.83	3.80	363	75	55.3	96	70.8	140	103.3	630	52	110	8.4	Ex II 2 D Ex h IIIC T85 °C Db	8411070334
LZB78-L-AR004-15	2.83	3.80	251	108	79.7	139	102.5	204	150.5	440	52	110	8.4	Ex II 2 D Ex h IIIC T85 °C Db	8411070342
LZB78-L-AR003-15	2.83	3.80	185	146	107.7	188	138.7	278	205.1	320	52	110	8.4	Ex II 2 D Ex h IIIC T85 °C Db	8411070359
LZB78-L-AR0018-15	2.81	3.76	104	259	191.0	331	244.1	484	357.0	180	52	110	8.6	Ex II 2 D Ex h IIIC T85 °C Db	8411070367
LZB78-L-AR0015-15	2.81	3.76	91	294	216.8	374	275.8	548	404.2	160	52	110	8.6	Ex II 2 D Ex h IIIC T85 °C Db	8411070375
LZB78-L-AR0010-11	2.81	3.76	63	425	313.5	541	399.0	793	584.9	110	52	110	8.7	Ex II 2 D Ex h IIIC T85 °C Db	8411070383

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