Atlas Copco LZB46-L-AV040-11 | LZB46 Vane Air Motor — High Speed, Counter-Clockwise, Lube-Free

With a 4,000 RPM free speed and 0.84 kW (1.13 hp) at 2,100 RPM, the Atlas Copco LZB46-L-AV040-11 is a lubrication-free LZB46 vane air motor turning out 3.8 Nm (2.8 ft-lb) at that point. Counter-clockwise rotation, standard keyed shaft, 1.20 kg (2.65 lb).

Performance at a Glance

Free speed is 4,000 RPM, with the max-output point at 2,100 RPM and 0.84 kW (1.13 hp). It breaks away from 6.1 Nm (4.5 ft-lb) and stalls at 7.6 Nm (5.6 ft-lb), so it starts under load and stalls harmlessly rather than tripping. Suited to light process drives, labelling machinery, belt conveyors and fan drives.

Technical Specifications

Key Features

• Max Output Power: 0.84 kW (1.13 hp) at 2,100 RPM — rated for continuous-duty operation in fixed-plant and automation environments
• Rotation: Counter-Clockwise—factory-set for consistent directional performance
• 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 T4 Gb (gas) and Ex II 2 D Ex h IIIC T110°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

• Light-duty process line drives
• Packaging and labeling machinery
• Belt and conveyor drive systems
• Industrial agitators and fan drives
• 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 compact hardened steel and aluminium housing, giving a slim 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 16.2 l/s (34.4 cfm). External parts are hardened steel and aluminium. Inlet hose size 0.4 in, outlet hose size 0.6 in.

Part Number: LZB46-L-AV040-11 | EDP: 8411046520 | Performance data at 6.3 bar (91 psi). For full performance curves and dimensional drawings, see the Atlas Copco Industrial Air Motor Catalogue.