Atlas Copco LZB46-L-AR170-11 | LZB46 Vane Air Motor — Ultra-High Speed, Fully Reversible, Lube-Free

Rated 0.63 kW (0.84 hp) at its 8,500 RPM max-output point, the Atlas Copco LZB46-L-AR170-11 is a lubrication-free LZB46 vane air motor with a 15,800 RPM free speed and 0.71 Nm (0.52 ft-lb) of torque at that point. Fully reversible, standard keyed shaft, 1.20 kg (2.65 lb).

Performance at a Glance

Free speed is 15,800 RPM, with the max-output point at 8,500 RPM and 0.63 kW (0.84 hp). It breaks away from 0.96 Nm (0.71 ft-lb) and stalls at 1.42 Nm (1 ft-lb), so it starts under load and stalls harmlessly rather than tripping. Suited to robotic end-effectors, high-frequency finishing tools and high-cycle automation cells.

Technical Specifications

Key Features

• Max Output Power: 0.63 kW (0.84 hp) at 8,500 RPM — rated for continuous-duty operation in fixed-plant and automation environments
• Rotation: Fully Reversible—switchable by reversing air connections, no disassembly required
• 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

• Automated assembly lines and robotic end-effectors
• High-frequency grinding and surface finishing equipment
• High-cycle pneumatic actuators in automation cells
• OEM machine builders requiring compact high-RPM 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 14 l/s (29.7 cfm). External parts are hardened steel and aluminium. Inlet hose size 0.4 in, outlet hose size 0.6 in.

Part Number: LZB46-L-AR170-11 | EDP: 8411046306 | Performance data at 6.3 bar (91 psi). For full performance curves and dimensional drawings, see the Atlas Copco Industrial Air Motor Catalogue.