ZB71MC Air Screwdriver

 

 

The ZB71MC Air Screwdriver is a durable, high-performance pneumatic tool designed for precision fastening and continuous use in industrial settings. Equipped with a Mechanical Clutch (MC) system, it delivers direct torque transmission for fast, consistent, and reliable screw-tightening operations. This design ensures immediate torque response with minimal loss, making it ideal for assembly lines that require both high speed and controlled accuracy. With its balanced construction, ergonomic grip, and efficient air motor, the ZB71MC offers powerful torque output while maintaining smooth, low-vibration performance. Built with industrial-grade materials and precision engineering, it provides long service life, low maintenance requirements, and dependable performance in demanding production environments.

 

 

Key Features

 

 

• Mechanical Clutch (MC) Drive System – Ensures direct torque transfer for fast, stable, and repeatable fastening performance.

• High-Speed Air Motor – Offers rapid screw-driving capability for increased throughput and enhanced productivity.

• Durable Aluminum Alloy Housing – Lightweight yet robust construction withstands heavy-duty industrial use.

• Ergonomic and Balanced Design – Reduces operator fatigue and improves handling control during repetitive operations.

• Low Vibration and Noise – Smooth pneumatic mechanism enhances comfort and operator safety.

• Quick Bit Change System – Allows fast and efficient bit replacement to support continuous workflow.

• Energy-Efficient Pneumatic System – Delivers strong torque with minimal air consumption for reduced operational costs.

• Easy Maintenance – Modular design simplifies disassembly and maintenance for maximum uptime.

 

 

Applications

 

 

The ZB71MC Air Screwdriver is ideal for a wide variety of professional assembly and production applications, including:

 

 

• Automotive and motorcycle component assembly

• Machinery and equipment manufacturing

• Metal and plastic fabrication lines

• Furniture and cabinet production

• OEM and industrial assembly operations requiring high torque accuracy

 

 

Performance Advantages

 

 

• Immediate Torque Response – The mechanical clutch delivers direct torque transfer for consistent, fastening strength.

• High Productivity – Fast cycle speeds increase production efficiency and reduce assembly time.

• Operator Comfort – A lightweight, balanced design minimizes vibration and strain during extended working hours.

• Reliability and Durability – Heavy-duty internal components ensure stable performance under continuous use.

• Cost Efficiency – Reduced air consumption and simplified maintenance minimize operational expenses.

• Consistent Quality – Ensures repeatable torque accuracy for improved product uniformity and reduced rework.

 

 

Technical Benefits

 

 

• Adjustable torque range for different fastening requirements.

• Forward/reverse control for quick switching between tightening and loosening operations.

• Compact size ideal for confined or overhead assembly spaces.

• The integrated air regulator maintains a stable torque output under varying air pressures.

• Suitable for both manual and semi-automated production line operations.

 

 

Why Choose ZB71MC

 

 

The ZB71MC Air Screwdriver combines precision, reliability, and efficiency in one professional fastening solution. Its mechanical clutch system guarantees direct torque delivery and fast response, ensuring secure and consistent fastening results in every cycle. Engineered with our standards of Power, Precision, and Productivity, the ZB71MC enhances assembly line performance while maintaining excellent operator comfort and long-term reliability. It is the ideal choice for manufacturers and assembly professionals who value consistent quality, speed, and durability in their fastening operations.

 

 

• 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: 550 rpm.
• Net Weight: 820 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: 15-95 Kgf-cm
• Standard Deviation: ±3 %
• Fastening Capacity/Machine Screw Dia.: M4.1-M7.0
• Fastening Capacity/Tapping Screw Dia.: M3.1-M6.0

 

 

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
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