Atlas Copco LZB14-RL-AR140-11 | LZB14 Vane Air Motor — Ultra-High Speed, Fully Reversible, Stainless Steel

Engineered to perform in the toughest factory conditions, the Atlas Copco LZB14-RL-AR140-11 is a ultra-high speed LZB14 vane air motor delivering up to 0.16 kW (0.21 hp) at 6.3 bar (91 psi). Stainless steel body for corrosion-resistant use. Fully Reversible rotation. Standard Keyed Shaft.

Performance at a Glance

This ultra-high speed variant runs in the 8,000–20,000 RPM range at peak output — engineered for high-cycle automation, precision tooling, and spindle drives. Stall torque scales to 9.6 Nm at the low-speed end of the LZB14 range, giving the motor massive starting force even under full load.

Technical Specifications

Key Features

• Max Output Power: 0.16 kW (0.21 hp) at 6.3 bar (91 psi) — rated for continuous-duty operation in fixed-plant and automation environments
• Rotation: Fully Reversible—switchable by reversing air connections, no disassembly required
• Stainless Steel Construction: Full stainless steel (316L-grade) body and motor cell resists corrosion in washdown, food-grade, and chemical environments. 100% silicon-free — safe for processes where silicone contamination is unacceptable.
• ATEX Zone 1/21 Certified — Approved for hazardous gas and dust atmospheres up to +40°C (104°F) in fixture-mounted use (EU Directive 2014/34/EU). 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
• Atlas Copco Quality: Designed and manufactured to ISO 9001 standards; global spare parts and service network with application engineering support

Ideal Applications

• High-cycle pneumatic actuators in automation cells
• OEM machine builders requiring compact high-RPM drives
• Automated assembly lines and robotic end-effectors
• High-frequency grinding and surface finishing equipment
• Hazardous area installations requiring ATEX Zone 1/21 certified pneumatic drives
• Environments where electric motors present ignition, EMI, or water ingress risks

The LZB14 series uses Atlas Copco's proven five-vane motor cell with zero-clearance design, maximising power-to-weight efficiency in a compact aluminium housing. Speed is infinitely variable by adjusting inlet pressure or flow — down to 50% of free speed — without mechanical governors or electronic drives. The linear torque-speed curve makes control predictable and repeatable across the full working range.

Operating pressure: 6.3 bar (91 psi). Air consumption at maximum output ranges across the LZB14 range based on speed code selection. For performance curves at other supply pressures, refer to pages 16–17 of the Atlas Copco 2026 Air Motor Catalogue.

Part Number: LZB14-RL-AR140-11  |  EDP: 8411012258  |  All data at 6.3 bar (91 psi). For full performance curves and dimensional drawings, see the Atlas Copco 2026 Industrial Air Motor Catalogue.