ZAW-211B 1/2-Inch Air Wrench – Heavy-Duty Two Hammer Pneumatic Impact Wrench with Rear Exhaust
The ZAW-211B 1/2-inch air wrench is a heavy-duty pneumatic impact tool designed for mechanics, technicians, and industrial operators who require maximum torque, durability, and precision control. Equipped with a two hammer impact mechanism, it delivers powerful, consistent impacts to loosen and tighten even the most stubborn fasteners — making it a perfect choice for automotive, heavy machinery, and industrial assembly applications.
High-Torque Performance
The 1/2-inch drive size makes this wrench a versatile choice for medium to heavy fastening jobs. Its two hammer system delivers strong, balanced impacts that minimize vibration and reduce operator fatigue, while ensuring smoother operation and longer tool life.
Rugged Construction
Built with a high-strength alloy housing and heat-treated precision components, the ZAW-211B is engineered for long-term reliability under continuous use. This makes it a dependable workhorse for workshops, assembly lines, and repair centers.
Clean Rear Exhaust System
The rear exhaust design directs discharged air away from the operator and the work surface, helping keep dust, debris, and contaminants away from sensitive parts. This ensures cleaner, safer operation, especially in confined or delicate work environments.
Practical Work Examples:
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Automotive Service: Loosening corroded suspension bolts, removing lug nuts during tire replacement, and fastening chassis components.
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Truck and Heavy Equipment Maintenance: Breaking free seized fasteners on engine mounts, transmission housings, and brake assemblies.
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Industrial Assembly: Installing and securing structural bolts in factory equipment and conveyor systems.
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Agricultural Equipment Repair: Servicing tractor wheel hubs, gearbox bolts, and plow frame connections.
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Construction Applications: Repairing loaders, excavators, and cranes by removing large, rusted bolts with ease.
Technical Specifications:
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Drive Size: 1/2 inch
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Impact Mechanism: Two Hammer
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Exhaust Type: Rear exhaust
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Construction: High-strength alloy housing with heat-treated internals
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Application Range: Heavy-duty fastening, automotive, industrial, and machinery repair
Key Benefits:
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Powerful torque for demanding fastening tasks
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Two hammer mechanism for smooth, consistent impacts
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Durable construction for long-lasting performance
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Rear exhaust for cleaner, safer operation
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Balanced design to reduce operator fatigue
Specification:
- Bolt Size Capacity: M12~M14
- Working Torque: 118(160)ft-lb(Nm)
- MAX. Torque: 207(280)ft-lb(Nm)
- Free Speed: 5500rpm
- Air Consumption: 240(8.5)l/min(cfm)
- Overall Length: 10.24(260)inch(mm)
- Air Inlet: 1/4P.T
- Net Weight: 3.75(1.7)lb(kg)
- Sound Level: 85db(A)
| Model | Bolt Size Capacity |
Working Torque ft-lb(Nm) |
MAX. Torque ft-lb(Nm) |
Free Speed rpm |
Air Consumption l/min(cfm) |
Overall Length inch(mm) |
Air Inlet P.T |
Net Weight lbs(kgs) |
Sound Level db(A) |
| ZAW-412B2 | M8 | 20(27) | 26(35) | 11000 | 127(4.5) | 7.01(178) | 1/4 | 1.5(0.68) | 89 |
| ZAW-412B3 | M8 | 20(27) | 26(35) | 11000 | 127(4.5) | 7.01(178) | 1/4 | 1.5(0.68) | 89 |
| ZAW-417B | M10 | 59(80) | 148(200) | 8000 | 212(7.5) | 8.86(225) | 1/4 | 2.36(1.07) | 90 |
| ZAW-910B1 | M10 | 59(80) | 96(130) | 8000 | 184(6.5) | 9.06(230) | 1/4 | 2.65(1.2) | 80 |
| ZAW-410B | M10 | 59(80) | 148(200) | 8300 | 212(7.5) | 7.48(190) | 1/4 | 2.16(0.98) | 94 |
| ZAW-421B3 | M10~M12 | 66(90) | 177(240) | 8000 | 283(10) | 7.48(190) | 1/4 | 2.34(1.06) | 97 |
| ZAW-211B | M12~M14 | 118(160) | 207(280) | 5500 | 240(8.5) | 10.24(260) | 1/4 | 3.75(1.7) | 85 |
| ZAW-241B | M16~M18 | 236(320) | 369(500) | 4400 | 283(10) | 13(330) | 1/4 | 7.5(3.4) | 95 |
Recommended Gauge Air Pressure: 60~90psi
