ZB31MC Air Screwdriver

The ZB31MC Air Screwdriver is a precision-engineered pneumatic fastening tool developed for light-duty and high-precision assembly applications. Designed with a Mechanical Clutch (MC) drive system, it provides direct and consistent torque transfer, ensuring repeatable tightening accuracy and smooth performance in electronic, appliance, and light mechanical assembly operations. Compact, lightweight, and ergonomically balanced, the ZB31MC delivers exceptional handling comfort and control. Its efficient pneumatic motor system offers reliable torque output with minimal vibration and low noise, making it ideal for operators who perform repetitive fastening in continuous production environments.

Key Features

• Mechanical Clutch (MC) System – Provides precise, stable torque delivery with excellent repeatability for consistent fastening results.

• High-Speed Air Motor – Delivers rapid screw-driving cycles to enhance productivity and workflow efficiency.

• Lightweight Aluminum Alloy Housing – Ensures durability while maintaining excellent balance and ease of handling.

• Ergonomic and Compact Design – Reduces operator fatigue and supports accuracy in delicate assembly applications.

• Low Noise and Vibration – Smooth pneumatic operation minimizes recoil, improving comfort and workplace conditions.

• Quick Bit Change Mechanism – Enables fast tool setup and efficient bit replacement for continuous operation.

• Energy-Efficient Air Circuit – Delivers high torque performance with reduced air consumption for cost-effective operation.

• Low-Maintenance Structure – A simple modular design allows for easy servicing and longer tool life.

Applications

The ZB31MC Air Screwdriver is ideal for light industrial and precision assembly operations, including:

• Electronics, electrical, and appliance manufacturing

• Small machinery and instrument assembly

• Automotive interior and trim component fastening

• Furniture, fixture, and hardware assembly

• General OEM and industrial assembly lines requiring controlled torque performance

Performance Advantages

• Consistent Torque Accuracy – Mechanical clutch provides direct and repeatable torque output, ensuring stable fastening quality.

• High Productivity – Fast cycle speed and smooth torque transfer shorten assembly time and boost production efficiency.

• Operator Comfort – Lightweight, well-balanced body reduces fatigue and supports long hours of continuous work.

• Durable and Reliable – Reinforced components and high-quality materials ensure lasting performance under frequent use.

• Cost Efficiency – Low air consumption and simplified maintenance lower total operating costs.

• Smooth and Stable Operation – Precision clutch design ensures uniform torque application without over-tightening.

Technical Benefits

• The adjustable torque range accommodates various assembly requirements.

• The forward/reverse control switch allows quick directional changes.

• Compact size ideal for confined spaces or overhead work.

• Built-in air regulator maintains torque consistency under variable air pressure.

• Compatible with manual or semi-automated assembly systems.

Why Choose ZB31MC

The ZB31MC Air Screwdriver offers a powerful combination of accuracy, comfort, and efficiency in a compact form factor. Its mechanical clutch system provides direct, stable torque control, while its ergonomic design enhances operator performance and productivity in precision assembly tasks. Built under our core values of Power, Precision, and Productivity, the ZB31MC delivers consistent fastening results, low maintenance, and long-term reliability — making it the perfect choice for manufacturers seeking dependable performance and cost-effective operation in light assembly environments.

• 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: 1000 rpm.
• Net Weight: 520 g
• O.A.L: 210 mm
• Dia.: 31 mm
• Air Pressure: 6 Kg/cm³
• Min. air hose bore: 5 mm
• Air Consumption: 0.2 m³/min
• Torque range: 1-8 Kgf-cm
• Standard Deviation: ±3 %
• Fastening Capacity/Machine Screw Dia.: M1.7-M3.3
• Fastening Capacity/Tapping Screw Dia.: M1.3-M2.7