ZIW1020C 1/2″ Composite Air Impact Wrench
Double Air Intake (D.A.I.) delivers the highest torque while remaining the size of an impact gun and lightweight.
The ZIW1020C 1/2-inch Composite Air Impact Wrench is a high-performance pneumatic fastening tool engineered to deliver strong torque output, lightweight handling, and long-lasting durability for professional, industrial, and automotive applications. Built with a composite housing, it delivers excellent strength while significantly reducing tool weight and improving operator comfort during extended use. Designed for efficiency and reliability, the ZIW1020C features a powerful impact mechanism that delivers consistent torque performance for tightening and loosening fasteners in demanding working environments. Its ergonomic design, balanced construction, and optimized air system make it ideal for assembly lines, maintenance workshops, and heavy-duty service operations.
Key Features
1/2 inch square drive for versatile fastening applications
Lightweight composite housing reduces operator fatigue
High torque output for efficient fastening and removal tasks
Durable impact mechanism for consistent performance
Ergonomic grip design improves handling and control
Forward and reverse operation with easy direction switching
Variable speed trigger for precise torque control
Rear exhaust directs air away from the operator and the work surface
Optimized air consumption for improved efficiency
Designed for continuous professional use
Applications
The ZIW1020C Composite Air Impact Wrench is suitable for a wide range of applications, including
Automotive repair and maintenance
Tire service and wheel installation
Assembly line fastening operations
Machinery maintenance and repair
Construction equipment servicing
General industrial fastening tasks
Performance Advantages
Lightweight Yet Durable
Composite housing reduces weight without sacrificing structural strength
High Torque Efficiency
Powerful impact mechanism enables fast and reliable fastener removal
Operator Comfort
Ergonomic design minimizes vibration and fatigue during extended operation
Consistent Performance
Stable pneumatic system ensures repeatable torque output
Improved Productivity
Fast operation speeds up maintenance and assembly work
Low Maintenance Requirements
Robust internal components extend service intervals
Technical Highlights
Tool Type
Pneumatic impact wrenchDrive Size
1/2 inch square driveHousing Material
High-strength composite constructionImpact Mechanism
Heavy-duty impact systemOperation Mode
Trigger-controlled forward and reverseExhaust Type
Rear exhaust designPneumatic Efficiency
Optimized airflow for stable performanceMaintenance
Simple maintenance with durable internal components
Why Choose ZIW1020C
The ZIW1020C 1/2-inch Composite Air Impact Wrench is designed for professionals who require powerful torque, lightweight handling, and durability in daily fastening operations. Its composite construction and efficient impact mechanism provide an excellent balance between performance and operator comfort. Ideal for automotive service, industrial assembly, and maintenance applications, the ZIW1020C delivers consistent torque performance, improved productivity, and dependable long-term operation in demanding working environments.
Features & Benefits
- Revolutionary patented DAI Double Air Intake motor system. Innovative design increases airflow, delivering high torque in an exceptionally compact machine.
- One-handed switch for 2 speeds forward, 1 speed reverse.
- The shortest length for better access in tight areas.
- Ergonomics comfort handle with a well-balanced design for user-friendliness.
- Viton oil seal to prevent oil leakage under high performance and high temperature.
- The front and end rotor plate inserts a thin steel plate to prevent wear and maintain high performance.
- Cold resistance against -25°C for composite motor housing.
- Complex processing and special rotor blade material provide wear resistance & very long life.

Specification:
- Square Drive: 1/2(12.7) inch(mm)
- Free Speed: 8300 rpm
- Max. Torque: 1000(1350) ft-lb(Nm)
- Avg. Air Cons.: 5.2(147) cfm(l/min)
- Overall Length: 5.9(150) inch(mm)
- Net Weight: 3.53(1.6) lbs(kgs)
- Air Inlet Size: 1/4 inch-NPT/PT
- Impact mechanism: Twin Hammer
- Operating Air Pressure: 90(6.2) psi(bar)
- Min. Hose Size: 3/8(10) inch(mm)
| Model | Square Drive inch(mm) | Free Speed rpm | Max. Torque ft-lb(Nm) | Avg. Air Cons. cfm(l/min) | Overall Length inch(mm) | Net Weight lbs(kgs) | Air Inlet Size inch-NPT/PT | Impact mechanism |
| ZIW1010C | 1/2(12.7) | 10000 | 500(680) | 4.7(133) | 4.8(122) | 2.87(1.3) | 1/4 | Twin Hammer |
| ZIW1020C | 1/2(12.7) | 8300 | 1000(1350) | 5.2(147) | 5.9(150) | 3.53(1.6) | 1/4 | Twin Hammer |
| ZIW340FA | 3/8(10) | 8500 | 400(542) | 4(113) | 3.46(88) | 3.06(1.39) | 1/4 | Twin Hammer |
| ZIW410FA | 1/2(12.7) | 8000 | 370(500) | 4(113) | 3.35(85) | 2.87(1.3) | 1/4 | Twin Hammer |
| ZIW337P | 3/8(10) | 8000 | 369(500) | 4(113) | 3.35(85) | 2.43(1.1) | 1/4 | Twin Hammer |
| ZIW437P | 1/2(12.7) | 8000 | 369(500) | 4(113) | 3.35(85) | 2.43(1.1) | 1/4 | Twin Hammer |



