ZIW1078C 1-inch Composite Air Impact Wrench
The ZIW1078C 1-inch Composite Air Impact Wrench is a heavy-duty pneumatic tool engineered for maximum torque output, reduced weight, and superior durability. Featuring a twin hammer impact mechanism and a lightweight composite housing, it delivers exceptional power-to-weight performance for the most demanding industrial, automotive, and maintenance applications. Designed for high-torque operations such as truck, bus, and heavy machinery assembly, the ZIW1078C combines advanced air motor technology with precision machining to ensure stable, efficient, and repeatable fastening performance. Its ergonomic grip, well-balanced body, and vibration-reduction structure make it ideal for continuous use in professional environments requiring both power and operator comfort.
Key Features
Twin Hammer Impact Mechanism – Delivers powerful, balanced impacts for smooth, consistent torque performance.
High Torque Output – Provides superior fastening strength for large bolts and heavy-duty applications.
Lightweight Composite Housing – Reduces overall tool weight for better handling without sacrificing durability or strength.
Ergonomic Grip and Balanced Design – Minimizes operator fatigue and enhances control during extended operation.
Three-Position Power Regulator – Allows easy adjustment of torque output for precise control across various applications.
Durable Aluminum Hammer Case – Protects the internal impact mechanism and ensures long service life under continuous use.
Rear Exhaust System – Directs airflow away from the operator and work area to maintain a clean and safe environment.
Low Noise and Vibration – Engineered internal damping reduces vibration and noise levels, improving operator safety and comfort.
Energy-Efficient Air Motor – Optimized airflow design provides powerful torque with minimal air consumption for cost-effective operation.
Applications
The ZIW1078C 1-inch Composite Air Impact Wrench is ideal for heavy-duty industrial and maintenance operations, including:
Truck, bus, and heavy vehicle maintenance – wheel nuts, chassis bolts, and suspension components
Heavy machinery and equipment assembly – structural fasteners and production-line bolting
Construction and steel fabrication – large bolt tightening and removal applications
Shipbuilding and industrial repair – robust fastening in harsh environments
Power plant and refinery maintenance – large-diameter bolt work under demanding torque requirements
Performance Advantages
Exceptional Torque Performance – Twin hammer system provides strong, stable torque for high-demand fastening tasks.
Reduced Operator Fatigue – A lightweight composite body and ergonomic handle enhance comfort during prolonged use.
Durable and Reliable Construction – Reinforced hammer cage and composite housing ensure long-term tool performance.
Clean and Safe Operation – Rear exhaust system maintains air direction away from the operator.
Energy Efficiency – High-performance air motor reduces air consumption while maintaining maximum torque output.
Low Maintenance – Precision-engineered components minimize wear and extend maintenance intervals.
Technical Benefits
Drive Size: 1 inch square drive
Mechanism: Twin hammer impact drive
Maximum Torque: Suitable for heavy-duty industrial fastening applications
Free Speed: High RPM output for efficient operation
Housing Material: Lightweight composite body with aluminum hammer case
Exhaust Type: Rear exhaust for clean air management
Direction Control: Forward/reverse switch with adjustable power settings
Recommended Air Pressure: 0.63 MPa (90 psi)
Maintenance: Use standard pneumatic lubricants for optimal performance and tool longevity
Why Choose ZIW1078C 1-inch Composite Air Impact Wrench
The ZIW1078C 1-inch Composite Air Impact Wrench combines extreme torque performance with lightweight handling, setting a new standard for professional-grade air tools. Its twin hammer mechanism ensures efficient and balanced power delivery, while the composite housing significantly reduces operator fatigue without compromising strength or durability. Manufactured under our guiding principles of Power, Precision, and Productivity, the ZIW1078C is built to deliver maximum torque output, reliability, and ergonomic comfort — making it the preferred solution for professionals working in automotive service, construction, heavy machinery, and industrial maintenance.
- Twin hammer impact mechanism to perform the best torque output, and Special hardened treatment to maintain the best durability.
- Titanium clutch case to reinforce the strength (ZIW1063CT).
- Vane with spring mounted to prevent dead-lock or power loss.
- Special Hardened Cylinder, Front Plate, and Rear Plate to generate the best durability.
- 3 different speed adjustments in the Forward direction, one full speed in the Reverse direction.
- Composite handle to provide the best power-to-weight ratio and prevent uncomfortable usage during temperature changes.
- 360-degree swivel air inlet to prevent the air hose from twisting.
Specification:
- Square Drive: 1(25) inch(mm)
- Free Speed: 5500 rpm
- Max. Torque(15 secs): 1,500(2,030) ft-lb(Nm)
- Working torque (5 secs): 1,200(1,630) ft-lb(Nm)
- Avg. Air Cons: 4.9(139) cfm(l/min)
- Net Weight: 8.2(3.7) lbs(kgs)
- Impact mechanism: Twin Hammer
| Model | Square Drive inch(mm) | Free Speed rpm | Max. Torque (15 secs) ft-lb(Nm) | Working torque (5 secs) ft-lb(Nm) | Avg. Air Cons. cfm(l/min) | Net Weight lbs(kgs) | Impact mechanism |
| ZIW1015C | 1/2(12.7) | 8500 | 820(1100) | 650(880) | 4.9(139) | 4.6(2.1) | Twin Hammer |
| ZIW1015CTL | 1/2(12.7) | 8500 | 820(1111) | 55~66(75~90) | 5.5(158) | 4.6(2.1) | Twin Hammer |
| ZIW1077C | 3/4(19) | 5500 | 1500(2030) | 1200(1630) | 4.9(139) | 8.2(3.7) | Twin Hammer |
| ZIW1077C-3 | 3/4(19) | 5500 | 1500(2030) | 1200(1630) | 4.9(139) | 9.3(4.2) | Twin Hammer |
| ZIW1077C-6 | 3/4(19) | 5500 | 1500(2030) | 1200(1630) | 4.9(139) | 9.9(4.5) | Twin Hammer |
| ZIW1078C | 1(25) | 5500 | 1500(2030) | 1200(1630) | 4.9(139) | 8.2(3.7) | Twin Hammer |
| ZIW1063CT | 1/2(12.7) | 8500 | 820(1100) | 650(880) | 4.9(139) | 4.8(2.2) | Twin Hammer |


