Atlas Copco LZB46-RL-A0020-11 | LZB46 Vane Air Motor — Medium Speed, Clockwise, Stainless Steel

With a 200 RPM free speed and 0.81 kW (1.09 hp) at 105 RPM, the Atlas Copco LZB46-RL-A0020-11 is a lubrication-free LZB46 vane air motor turning out 75 Nm (55 ft-lb) at that point. Clockwise rotation, standard keyed shaft, 3.80 kg (8.4 lb).

Performance at a Glance

Free speed is 200 RPM, with the max-output point at 105 RPM and 0.81 kW (1.09 hp). It breaks away from 121 Nm (89 ft-lb) and stalls at 149 Nm (110 ft-lb), so it starts under load and stalls harmlessly rather than tripping. Suited to washdown agitator drives, valve actuation, auger feeds and conveyor drives in sanitary installations.

Technical Specifications

Key Features

• Max Output Power: 0.81 kW (1.09 hp) at 105 RPM — rated for continuous-duty operation in fixed-plant and automation environments
• Rotation: Clockwise—factory-set for consistent directional performance
• Stainless Steel Construction: Stainless steel external parts resist corrosion in washdown, food-grade, and chemical 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/IP68/IP69 Rated: Sealed against dust ingress and water jets, rated for high-pressure washdown and immersion
• Atlas Copco Quality: Designed and manufactured to ISO 9001 standards; global spare parts and service network with application engineering support

Ideal Applications

• Washdown-duty agitator and mixer drives
• Valve actuation in food and chemical process lines
• Screw feeder and auger drives in sanitary installations
• Low-speed conveyor drives in wet environments
• Hazardous area installations requiring ATEX certified pneumatic drives
• Environments where electric motors present ignition, EMI, or water ingress risks

The LZB46 uses Atlas Copco's zero-clearance vane motor design in a stainless steel housing, giving a slim profile that drops into tight machine layouts without a redesign while standing up to washdown and corrosive process environments. 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 16.2 l/s (34.4 cfm). External parts are stainless steel. Inlet hose size 0.4 in, outlet hose size 0.6 in.

Part Number: LZB46-RL-A0020-11 | EDP: 8411047132 | Performance data at 6.3 bar (91 psi). For full performance curves and dimensional drawings, see the Atlas Copco Industrial Air Motor Catalogue.