ZB41MC Air Screwdriver
The ZB41MC Air Screwdriver is a compact, lightweight pneumatic fastening tool engineered for precision, consistency, and operator comfort in light-duty to medium-duty industrial applications. Equipped with a Mechanical Clutch (MC) drive system, it ensures direct torque transfer for fast, stable, and repeatable tightening performance — ideal for assembly environments that demand accuracy and efficiency. Built with our high-efficiency air motor and precision-machined internal components, the ZB41MC offers smooth torque output, low vibration, and long service life. Its ergonomic grip, balanced structure, and energy-efficient air system make it a preferred solution for continuous assembly operations requiring controlled torque and reliable productivity.
Key Features
Mechanical Clutch (MC) System – Provides instant torque delivery with excellent repeatability and stability.
High-Speed Air Motor – Delivers rapid screw-driving performance to maximize assembly output.
Durable Aluminum Alloy Housing – Combines lightweight handling with long-term structural strength.
Ergonomic and Balanced Design – Reduces hand fatigue and enhances control during extended use.
Low Noise and Vibration – Smooth pneumatic motor ensures quiet, low-recoil operation for improved operator comfort.
Quick Bit Change System – Allows efficient bit replacement, minimizing downtime between operations.
Energy-Efficient Air Circuit – Provides strong torque output with minimal air consumption, resulting in lower operational costs.
Easy Maintenance Design – Modular construction simplifies servicing, extending tool longevity.
Applications
The ZB41MC Air Screwdriver is suited for a variety of industrial and precision assembly applications, including:
Electronics and appliance manufacturing
Automotive interior and minor component assembly
Machinery and equipment production
Furniture, cabinet, and panel assembly
OEM and industrial assembly lines requiring high-accuracy torque control
Performance Advantages
Consistent Torque Output – Mechanical clutch ensures direct and repeatable torque delivery for uniform fastening quality.
Enhanced Productivity – High operating speed reduces cycle time and increases assembly efficiency.
Operator Comfort – Lightweight, low-vibration design reduces strain and improves handling control.
Reliable Durability – Industrial-grade materials and precision parts provide long-term performance.
Cost Efficiency – Low air consumption and simple maintenance lower operating costs.
Stable Operation – Smooth torque response prevents over-tightening and supports precision fastening.
Technical Benefits
Adjustable torque range suitable for varied fastening requirements.
Forward/reverse lever for quick and efficient directional control.
Compact design ideal for tight or overhead workspaces.
Built-in air regulator maintains torque consistency under fluctuating air pressure.
Compatible with both manual and semi-automated assembly systems.
Why Choose ZB41MC
The ZB41MC Air Screwdriver combines speed, precision, and ergonomic comfort in a compact, durable form. Its mechanical clutch system ensures stable torque output for repetitive, accuracy-critical fastening operations, while its lightweight design supports long hours of continuous work without fatigue. Reflecting our commitment to Power, Precision, and Productivity, the ZB41MC delivers reliable, efficient performance for manufacturers who demand consistent torque accuracy, energy efficiency, and long-lasting tool durability in every production cycle.

- 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: 1800 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: 0.28 m3/min
- Torque range: 3-17 Kgf-cm
- Standard Deviation: ±3 %
- Fastening Capacity/Machine Screw Dia.: M2.2-M4.2
- Fastening Capacity/Tapping Screw Dia.: M1.7-M3.2
| 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 |

