Atlas Copco LZB34-RLB-AR024-11 | LZB34 Vane Air Motor — Medium Speed, Clockwise, Stainless Steel

The Atlas Copco LZB34-RLB-AR024-11 is a lubrication-free LZB34 stainless steel vane air motor with a 2,000 RPM free speed, delivering 0.25 kW (0.34 hp) and 2.2 Nm (1.6 ft-lb) at its 1,090 RPM max-output point. Fully Reversible, standard keyed shaft, 1.39 kg (3.06 lb).

Performance at a Glance

This speed code tops out at 2,000 RPM free and does its useful work around 1,090 RPM, where it makes 0.25 kW (0.34 hp). Minimum starting torque is 3 Nm (2.2 ft-lb) and stall torque is 4.4 Nm (3.2 ft-lb), so it starts under load and stalls harmlessly rather than tripping. The built in brake holds the shaft with 3.5 Nm (2.6 ft-lb) of braking torque when air is removed. Suited to packaging machinery, material handling, batch filling and process pumps.

Technical Specifications

Key Features

• Max Output Power: 0.25 kW (0.34 hp) at 1,090 RPM — rated for continuous-duty operation in fixed-plant and automation environments
• Rotation: Fully Reversible—switchable by reversing air connections, no disassembly required
• Integrated Brake: Built in brake, braking torque 3.5 Nm (2.6 ft-lb), for load holding and controlled stops
• Stainless Steel Construction: Stainless steel external parts resist corrosion in washdown, food-grade, and chemical environments.
• Lubrication-Free Vane Design: Lubrication-free vane material eliminates in-line air oilers and prevents lubricant contamination of your process or product — ideal for food, pharma, and clean manufacturing environments.
• ATEX Certified — Ex II 2 G Ex h IIC T6 Gb (gas) and Ex II 2 D Ex h IIIC T85°C Db (dust), to EU Directive 2014/34/EU, for ambient temperatures up to +40°C (104°F). Safe for use in classified areas where electric motors are prohibited.
• Output Shaft — Standard Keyed Shaft: Direct integration into existing drive trains, couplings, sprockets, and IEC/NEMA machine interfaces
• Overload Safe: Stalls harmlessly under overload; self-starts when load is removed — no thermal protection, burnout risk, or electronic fault recovery needed
• Infinitely Variable Speed: Regulate output speed and torque via inlet pressure or flow control valve — no electronic drives or VFDs required
• IP66 Rated: Sealed against dust ingress and powerful water jets for washdown and outdoor installations
• Atlas Copco Quality: Designed and manufactured to ISO 9001 standards; global spare parts and service network with application engineering support

Ideal Applications

• Batch processing and precision filling lines
• Process industry pumps and agitators
• Mixing and blending equipment for liquids and pastes
• Material handling and transfer conveyors
• Hazardous area installations requiring ATEX certified pneumatic drives
• Environments where electric motors present ignition, EMI, or water ingress risks

The LZB34 uses Atlas Copco’s zero-clearance vane motor design in a long, slim stainless steel housing, giving a profile that drops into tight machine layouts without a redesign. Speed is infinitely variable by adjusting inlet pressure or flow, without mechanical governors or electronic drives, and the linear torque-speed curve makes control predictable and repeatable across the working range.

Air consumption at maximum output is 7.9 l/s (16.8 cfm). External parts are stainless steel. Inlet and outlet hose size 0.4 in.

Part Number: LZB34-RLB-AR024-11 | EDP: 8411034195 | Performance data at 6.3 bar (91 psi). For full performance curves and dimensional drawings, see the Atlas Copco Industrial Air Motor Catalogue.