Atlas Copco TZB25-L-AV0012-14 | TZB25 Turbine Air Motor — Low Speed, Counter-Clockwise, ¾″ Shaft
Designed to deliver consistent performance across extreme operating conditions, the Atlas Copco TZB25-L-AV0012-14 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. ¾" (19 mm) output shaft.
Atlas Copco TZB25 Turbine Air Motor — Low Speed: Reliable Performance for Industrial Applications
At this speed setting, the motor delivers 110 RPM at maximum output, with 270 Nm shaft torque at that point and a stall torque of 490 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
| Model / Part Number | TZB25-L-AV0012-14 |
|---|---|
| EDP Number | 8411310065 |
| Max Output Power | 2.8 kW (3.75 hp) @ 6.3 bar (91 psi) |
| Free Speed (max) | 530 RPM |
| Stall Torque | 490 Nm |
| Rotation | Counter-Clockwise |
| Output Shaft | ¾" Keyed Shaft |
| Unit Weight | 5.97 kg (13.2 lb) |
| Operating Pressure | 6.3 bar (91 psi) — lubrication-free |
| Technology | Turbine with integrated speed governor |
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 — ¾" 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-torque constant-speed process drives
- Explosion-risk environments requiring ATEX-rated constant-speed drives
- Space-constrained installations needing maximum torque density
- Large ball valve and butterfly valve actuation
- 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 ¾" (19 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-AV0012-14 | EDP: 8411310065 | All data at 6.3 bar (91 psi). For full performance curves and dimensional drawings, see the Atlas Copco 2026 Industrial Air Motor Catalogue.
Overview of the Turbine Air Motor — Low Speed
The Atlas Copco TZB25-L-AV0012-14 is a precision-engineered turbine air motor designed for low speed applications. This motor operates efficiently with a counter-clockwise rotation, making it ideal for specific industrial uses requiring controlled torque and smooth power delivery. Equipped with a sturdy ¾″ shaft, it ensures a strong connection to a variety of mechanical systems. Its low-speed performance is tailored to optimize durability and operational control, providing an excellent balance between power output and longevity.
Key Features and Technical Specifications
This turbine air motor features a high-performance design built to meet rigorous industrial standards. The unit’s low speed enhances torque without compromising efficiency, making it suitable for heavy-duty tasks. It operates at optimal air consumption levels, reducing energy waste. The ¾″ shaft size supports various couplings and attachments, increasing its adaptability. Additionally, the motor’s counter-clockwise rotation offers versatility in assembly line setups or machinery requiring precise directional control. Its robust construction withstands harsh environments, ensuring reliability and minimal maintenance needs.
Benefits and Industrial Applications
The Atlas Copco TZB25 turbine air motor’s low-speed operation delivers consistent, controlled power, reducing wear on connected components. This makes it highly advantageous in applications such as conveyor drives, assembly tools, and process equipment where precise speed and torque control are essential. Its counter-clockwise shaft rotation provides flexibility in installation orientation. Reliable under demanding conditions, this motor supports increased productivity with decreased downtime. Industrial operators benefit from its efficiency and long service life, making the TZB25 a trusted choice for enhancing workflow and operational safety.
NOTE: Actual product may be different from pictured!
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