Air motor with brake in a vertical cylindrical layout, with a separate black

Black and silver cylindrical air motor with a protruding shaft on the left

Black and silver cylindrical air motor shown at an angle, with a shaft

בית » מוצרים » Air Motor with Brake LZB33-LB 0.23-0.34kW

Air Motor with Brake LZB33-LB 0.23-0.34 kW

Name: Air Motor with Brake LZB33-LB 0.23-0.34 kW
Brand: Atlas Copco

LZB33-LB series air motor featuring an integrated fail-safe brake module.

Air Motor with Brake LZB33-LB 0.23-0.34 kW

Air Motor with Brake LZB33-LB provides the ultimate safety solution for industrial applications requiring precise stopping and secure load holding. This series integrates a powerful pneumatic motor with a fail-safe brake module, ensuring the shaft remains mechanically locked whenever air supply is interrupted.

The brake mechanism in the LZB33-LB operates automatically: a strong spring engages the brake immediately when air pressure drops, and it releases only when pressure is restored. This “Air Motor with Brake” design is essential for lifting operations, hoists, indexing machinery, and inclined conveyors where load slippage is not an option. Atlas Copco engineered these motors for Lubrication Free operation, maintaining a clean environment while delivering consistent torque. With braking torques reaching up to 520 Nm in low-speed versions, this motor ensures absolute control. Furthermore, every unit is fully ATEX Certified for safe operation in potentially explosive environments. To select the perfect model for your specific requirements, use the Air Motor Selection Tool or check out our full range of Air Motors.

Key Features of Air Motor with Brake LZB33-LB

Fail-Safe Braking: The spring-loaded brake engages automatically upon air loss, mechanically locking the load in place.
High Holding Capacity: Offers braking torques from 0.55 up to 520 Nm, suitable for heavy-duty lifting and holding tasks.
Clean Operation: Lube-free vane technology prevents oil mist, with stainless steel options (LZB34) available for corrosive areas.
Compact Design: The integrated brake module saves space compared to external braking solutions, simplifying machine design.

Frequently Asked Questions

Q: What applications require an Air Motor with Brake?
A: It is critical for lifting equipment, cranes, robotic arms, and any application where the load must not move when the machine is stopped or in case of air failure.

Q: How is the brake controlled?
A: The brake is controlled directly by the air supply. Supplying air to the motor releases the brake spring, allowing rotation. Cutting the air supply instantly engages the brake.

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Technical Data – LZB33-LB Vane Motors (Brake Module, Lubrication Free)

Model	Max Output		Speed at Max Output (r/min)	Torque at Max Output		Min Starting Torque		Stall Torque		Braking 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	Nm	lb-ft	Free Speed (r/min)	l/s	cfm	Weight (kg)	Shaft Load Code	ATEX Code	Ordering No.
Reversible (Keyed shaft)
LZB33-LB-AR150-11	0.25	0.34	7,000	0.34	0.25	0.46	0.34	0.68	0.5	0.55	0.4	13,300	7.9	16.8	1.35	C	Ex II 2GD h T4 IIC T110 °C	8411034005
LZB33-LB-AR043-11	0.25	0.34	1,960	1.2	0.89	1.6	1.2	2.4	1.8	2.0	1.5	3,800	7.9	16.8	1.35	C	Ex II 2GD h T6 IIC T85 °C	8411034013
LZB33-LB-AR024-11	0.25	0.34	1,090	2.2	1.6	3.0	2.2	4.4	3.2	3.5	2.6	2,000	7.9	16.8	1.35	C	Ex II 2GD h T6 IIC T85 °C	8411034021
LZB33-LB-AR019-11	0.25	0.34	880	2.7	2.0	3.7	2.7	5.4	4.0	4.4	3.2	1,700	7.9	16.8	1.35	C	Ex II 2GD h T6 IIC T85 °C	8411034039
LZB33-LB-AR009-11	0.25	0.34	430	5.4	4.0	7.0	5.2	10.8	8.0	8.9	6.6	800	7.9	16.8	1.63	C	Ex II 2GD h T6 IIC T85 °C	8411034047
LZB33-LB-AR005-11	0.25	0.34	240	9.8	7.2	12.6	9.3	19.6	14.5	16	12	450	7.9	16.8	1.63	C	Ex II 2GD h T6 IIC T85 °C	8411034054
LZB33-LB-AR004-11	0.25	0.34	190	12.1	8.9	15.6	11.5	24	17.8	20	15	360	7.9	16.8	1.63	C	Ex II 2GD h T6 IIC T85 °C	8411034062
LZB33-LB-AR0026-11	0.24	0.32	120	19	14	20	14.8	38	28	32	24	230	7.9	16.8	2.1	d	Ex II 2GD h T6 IIC T85 °C	8411034070
LZB33-LB-AR0015-11	0.24	0.32	75	31	23	41	30	62	46	52	38	140	7.9	16.8	2.1	g	Ex II 2GD h T6 JIC T85 °C	8411034088
LZB33-LB-AR0011-11	0.24	0.32	55	42	31	56	41	84	62	71	52	100	7.9	16.8	2.1	g	Ex II 2GD h T6 IIC T85 °C	8411034096
LZB33-LB-AR0008-11	0.24	0.32	41	56	41	74	55	112	83	93	67	75	7.9	16.8	7.0	D	Ex II 2GD h T6 IIC T85 °C	8411034104
LZB33-LB-AR0006-11	0.24	0.32	31	75	55	100	74	150	111	130	95	60	7.9	16.8	3.2	g	Ex II 2GD h T6 IIC T85 °C	8411034112
LZB33-LB-AR0005-11	0.24	0.32	25	93	69	125	92	186	137	160	120	45	7.9	16.8	7.0	–	Ex II 2GD h T6 IIC T85 °C	8411034120
LZB33-LB-AR0004-11	0.23	0.31	18	120	89	169	125	240	177	210	160	35	7.9	16.8	5.6	h	Ex II 2GD h T6 IIC T85 °C	8411034138
LZB33-LB-AR0003-11	0.23	0.31	13	165	122	230	170	330	243	290	210	25	7.9	16.8	12.3	h	Ex II 2GD h T6 IIC T85 °C	8411034146
LZB33-LB-AR0002-11	0.23	0.31	10	220	162	305	225	440	325	380	280	20	7.9	16.8	5.6	h	Ex II 2GD h T6 IIC T85 °C	8411034153
LZB33-LB-AR0001-11	0.23	0.31	7	300	221	412	304	600	443	520	380	14	7.9	16.8	12.3	h	Ex II 2GD h T6 IIC T85 °C	8411034161

Technical Data – LZB34-RLB Vane Motors (Stainless Steel with Brake Module, Lubrication Free)

Model	Max Output		Speed at Max Output (r/min)	Torque at Max Output		Min Starting Torque		Stall Torque		Braking 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	Nm	lb-ft	Free Speed (r/min)	l/s	cfm	Weight (kg)	Shaft Load Code	ATEX Code	Ordering No.
Stainless Steel, Reversible (Keyed shaft)
LZB34-RLB-AR150-11	0.25	0.34	7,000	0.25	0.34	0.34	0.46	0.5	0.68	0.4	0.55	13,300	16.8	7.9	1.39	C	Ex II 2GD h T4 IIC T110 °C	8411034179
LZB34-RLB-AR043-11	0.25	0.34	1,960	0.89	1.2	1.2	1.6	1.8	2.4	1.5	2.0	3,800	16.8	7.9	1.39	C	Ex II 2GD h T6 IIC T85 °C	8411034187
LZB34-RLB-AR024-11	0.25	0.34	1,090	1.6	2.2	2.2	3.0	3.2	4.4	2.6	3.5	2,000	16.8	7.9	1.39	C	Ex II 2GD h T6 IIC T85 °C	8411034195
LZB34-RLB-AR019-11	0.25	0.34	880	2.0	2.7	2.7	3.7	4.0	5.4	3.2	4.4	1,700	16.8	7.9	1.39	C	Ex II 2GD h T6 IIC T85 °C	8411034203
LZB34-RLB-AR009-11	0.25	0.34	430	4.0	5.4	5.2	7.0	8.0	10.8	6.6	9.0	800	16.8	7.9	1.66	C	Ex II 2GD h T6 IIC T85 °C	8411034211
LZB34-RLB-AR005-11	0.25	0.34	240	7.2	9.8	9.3	12.6	14.5	19.6	12	16	450	16.8	7.9	1.66	C	Ex II 2GD h T6 IIC T85 °C	8411034229
LZB34-RLB-AR004-11	0.25	0.34	190	8.9	12.1	11.5	15.6	17.8	24	15	20	360	16.8	7.9	1.66	C	Ex II 2GD h T6 IIC T85 °C	8411034237

Would you like to check whether Air Motor with Brake LZB33-LB 0.23-0.34 kW fits your application?

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