Atlas Copco TZB25-L-AV0008-15 | TZB25 Turbine Air Motor — Low Speed, Counter-Clockwise, 1″ Shaft

Built for industrial environments where reliability is non-negotiable, the Atlas Copco TZB25-L-AV0008-15 is a TZB25 turbine air motor delivering 2.8 kW (3.75 hp) with an integrated speed governor for constant-speed, high-torque output. Counter-Clockwise rotation. 1" (25.4 mm) output shaft.

Performance at a Glance

At this speed setting, the motor delivers 70 RPM at maximum output, with 370 Nm shaft torque at that point and a stall torque of 700 Nm. The built-in centrifugal governor maintains this speed under varying loads — eliminating the speed droop that plagues ungoverned vane motors in torque-critical applications.

Technical Specifications

Key Features

• Max Output Power: 2.8 kW (3.75 hp) at 6.3 bar (91 psi) — 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 Zone 1/21 Certified — Approved for hazardous gas and dust atmospheres up to +60°C (140°F) in fixture-mounted use (EU Directive 2014/34/EU). Safe for use in classified areas where electric motors are prohibited.
• Output Shaft — 1" 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

• Large ball valve and butterfly valve actuation
• Explosion-risk environments requiring ATEX-rated constant-speed drives
• Space-constrained installations needing maximum torque density
• High-torque constant-speed process drives
• Hazardous area installations requiring ATEX Zone 1/21 certified pneumatic drives
• Environments where electric motors present ignition, EMI, or water ingress risks

The TZB25 turbine motor is 40% more energy-efficient than traditional vane motors — delivering the same shaft power from significantly less compressed air. The built-in centrifugal governor continuously trims airflow to hold set speed under load, eliminating the speed droop that causes quality issues in process and mixing applications.

The 1" (25.4 mm) output shaft connects directly to standard industrial couplings, sprockets, and drive elements. IP69 wash-down rating ensures long service life in wet or high-pressure cleaning environments. Total motor weight of 3.5–5.6 kg makes it far lighter than electric or hydraulic alternatives of equivalent torque output.

Part Number: TZB25-L-AV0008-15  |  EDP: 8411310058  |  All data at 6.3 bar (91 psi). For full performance curves and dimensional drawings, see the Atlas Copco 2026 Industrial Air Motor Catalogue.