Atlas Copco PZB15-LE-AR500-11 | PZB15 Piston Air Motor — Reversible, Extended Bearing, Standard Keyed Shaft

Precision-engineered for maximum uptime in continuous-duty cycles, the Atlas Copco PZB15-LE-AR500-11 is a extended-bearing aluminum piston air motor delivering 0.12 kW (0.16 hp) with fully reversible operation, precision low-speed control, and 25–40% lower air consumption than vane alternatives. Standard Keyed Shaft.

Performance at a Glance

This piston motor delivers 3.93 Nm at 297 RPM peak output (stall torque: 7.8 Nm). Centrifugal piston technology enables reliable high-torque starting at extremely low speeds — a performance envelope no vane motor can match below 100 RPM. Consumes 25–40% less compressed air than equivalent vane motors.

Technical Specifications

Key Features

• Max Output Power: 0.12 kW (0.16 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
• Extended Bearing Configuration: Oversized output bearing accommodates high radial shaft loads — enabling direct sprocket, pulley, or gear mounting without a separate bearing housing.
• 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

• Stop-start high-cycle actuation applications
• Chemical and pharmaceutical dosing equipment
• Precise low-speed actuation in cleanroom and automation
• White room and food-grade automation lines
• Hazardous area installations requiring ATEX Zone 1/21 certified pneumatic drives
• Environments where electric motors present ignition, EMI, or water ingress risks

The PZB piston motor's centrifugal piston design achieves high starting torque at extremely low speeds — a performance profile no vane motor can match below 100 RPM. The fully reversible pneumatic circuit enables bidirectional operation without external flow-switching valves, simplifying installation and reducing component count.

The aluminium housing mates directly to standard IEC and NEMA motor flanges, making drop-in replacement of electric gearmotors straightforward — with all the inherent safety advantages of pneumatic drive in ATEX and explosion-risk zones. A built-in inductive sensor port (M5) enables easy closed-loop speed monitoring.

Part Number: PZB15-LE-AR500-11  |  EDP: 8411415034  |  All data at 6.3 bar (91 psi). For full performance curves and dimensional drawings, see the Atlas Copco 2026 Industrial Air Motor Catalogue.