ZB79MC Air Screwdriver
The ZB79MC Air Screwdriver is a powerful, high-speed pneumatic fastening tool designed for heavy-duty industrial assembly applications that demand both torque strength and accuracy. Built with a direct mechanical clutch (MC) drive system, it delivers immediate torque transfer and superior fastening speed, making it ideal for production environments where productivity and performance are key priorities. By combining advanced air motor technology with precision-machined components, the ZB79MC delivers robust performance, extended service life, and smooth operation. Its ergonomic design, durable construction, and efficient air consumption make it the preferred choice for assembly lines and manufacturing facilities requiring continuous, reliable screw fastening.
Key Features
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Mechanical Clutch (MC) System – Provides direct torque transmission for powerful, fast, and consistent fastening performance.
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High-Speed Air Motor – Delivers rapid screw-driving cycles for superior productivity in high-volume assembly environments.
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Durable Industrial Construction – Reinforced aluminum housing and hardened steel gears ensure strength and extended service life.
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Ergonomic Grip and Balanced Design – Reduces vibration and operator fatigue during long periods of continuous use.
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Low Noise and Smooth Operation – Advanced pneumatic motor design minimizes vibration and ensures quiet, stable performance.
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Quick Bit Change System – Allows rapid bit replacement to streamline assembly processes.
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Energy-Efficient Air System – Delivers maximum torque output with low air consumption, optimizing operational costs.
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Easy Maintenance – Simple internal design provides fast access for servicing and reduces maintenance downtime.
Applications
The ZB79MC Air Screwdriver is ideal for medium- to heavy-duty industrial assembly operations where torque, power, and speed are essential, including:
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Automotive chassis and body assembly
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Truck, trailer, and machinery manufacturing
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Appliance and metal product production
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Furniture and equipment assembly lines
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General industrial and OEM manufacturing applications requiring powerful fastening performance
Performance Advantages
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Direct Torque Transfer – Mechanical clutch ensures instantaneous torque delivery for quick, stable fastening.
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Enhanced Productivity – High-speed motor and responsive torque output increase assembly efficiency.
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Operator Comfort – A balanced body design minimizes vibration and reduces fatigue during long production cycles.
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Durable Reliability – Industrial-grade components guarantee consistent performance under heavy use.
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Energy Savings – Optimized pneumatic design provides high torque with reduced air consumption.
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Low Maintenance Requirements – Fewer internal wear components simplify servicing and extend tool life.
Technical Benefits
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Suitable for medium and heavy-duty screw-fastening operations.
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Forward/reverse control switch for efficient directional changes.
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Compact, balanced design for confined or overhead work environments.
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Adjustable torque settings support multiple assembly applications.
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Stable performance under continuous high-pressure operation.
Why Choose ZB79MC
The ZB79MC Air Screwdriver represents the perfect balance of power, speed, and durability, making it an ideal choice for heavy-duty production environments. Its mechanical clutch system ensures efficient torque transmission and stable performance across all fastening tasks, while its ergonomic design supports operator safety and long-term usability. Engineered to meet industrial standards for Quality, Reliability, and Productivity, the ZB79MC enhances assembly line efficiency and ensures consistent fastening performance — making it the professional’s choice for demanding manufacturing and industrial applications.
- Torque fix system
- Wide torque range & low vibration
- Patented clutch mechanism
- Patented high-output motor
- One-hand operation for forward and reverse
Motor Comparison
Patented motor
Traditional motor
Torque schematic diagram
Patented torque control system
Traditional torque control system
Specification:
- Free Speed: 250 rpm.
- Net Weight: 840 g
- O.A.L: 245 mm
- Dia.: 39 mm
- Air Pressure: 6 Kg/cm3
- Min. air hose bore: 8 mm
- Air Consumption: 0.55 m3/min
- Torque range: 50-280 Kgf-cm
- Standard Deviation: ±3 %
- Fastening Capacity/Machine Screw Dia.: M6.0-M11.0
- Fastening Capacity/Tapping Screw Dia.: M4.9-M8.7
| Model | Free Speed rpm |
Weight g |
O.A.L mm |
Dia. mm |
Air Pressure kg/cm³ |
Min. air hose bore mm |
Air Consumption m³/min |
Torque range kgf-cm |
Standard Deviation % |
Fastening Capacity | |
| Machine Screw Dia. |
Tapping Screw Dia |
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| ZB21MC | 1000 | 520 | 210 | 31 | 6.0 | 5.0 | 0.20 | 0.5-2 | ±3 | M1.0-M2.2 | M1.1-M1.7 |
| ZB31MC | 1000 | 520 | 210 | 31 | 6.0 | 5.0 | 0.20 | 1-8 | ±3 | M1.7-M3.3 | M1.3-M2.7 |
| ZB41MC | 1800 | 520 | 210 | 31 | 6.0 | 5.0 | 0.28 | 3-17 | ±3 | M2.2-M4.2 | M1.7-M3.2 |
| ZB46MC | 2200 | 520 | 210 | 31 | 6.0 | 5.0 | 0.28 | 3-20 | ±3 | M2.2-M4.5 | M1.7-M3.5 |
| ZB49MC | 1800 | 520 | 210 | 31 | 6.0 | 5.0 | 0.28 | 3-25 | ±3 | M2.2-M4.7 | M1.7-M3.8 |
| ZB51MC | 1000 | 520 | 210 | 31 | 6.0 | 5.0 | 0.28 | 5-30 | ±3 | M2.8-M5.0 | M2.3-M4.0 |
| ZB56MC | 800 | 520 | 210 | 31 | 6.0 | 5.0 | 0.3 | 8-40 | ±3 | M3.3-M5.7 | M2.7-M4.4 |
| ZB59MC | 1700 | 820 | 245 | 39 | 6.0 | 8.0 | 0.55 | 5-45 | ±3 | M2.8-M5.8 | M2.2-M4.7 |
| ZB61MC | 1400 | 820 | 245 | 39 | 6.0 | 8.0 | 0.55 | 7-50 | ±3 | M2.9-M6.0 | M2.6-M4.9 |
| ZB66MC | 1000 | 820 | 245 | 39 | 6.0 | 8.0 | 0.55 | 7-65 | ±3 | M2.9-M6.4 | M2.6-M5.4 |
| ZB71MC | 550 | 820 | 245 | 39 | 6.0 | 8.0 | 0.55 | 15-95 | ±3 | M4.1-M7.0 | M3.1-M6.0 |
| ZB76MC | 300 | 840 | 245 | 39 | 6.0 | 8.0 | 0.55 | 30-180 | ±3 | M5.0-M9.3 | M4.0-M7.2 |
| ZB79MC | 250 | 840 | 245 | 39 | 6.0 | 8.0 | 0.55 | 50-280 | ±3 | M6.0-M11.0 | M4.9-M8.7 |
