WENK Pneumatic HDM Series Mechanical Gripper
Product Detail
Acting Mode |
Double Acting |
Working Media |
Cleaned Air |
Working Pressure |
1.5~7kgf/cm² |
Effective Gripping Force |
F=M/Lx0.9 |
Working Temperature Range |
-20℃~70°C |
Open/Close Angle |
-1°~+180° |
Body Material |
Aluminum Alloy |
HDM Mechanical Gripper User Guide

1. Product Introduction
The HDM Mechanical Gripper is a high-precision pneumatic clamping device developed by WENK Pneumatic, designed specifically for automated material handling and assembly applications. Featuring a robust silver aluminum body with dual parallel jaws, this product ensures reliable performance in various industrial environments. Available in multiple models, including the HDM20, it is suitable for industrial automation systems requiring safe and accurate workpiece handling, providing an ideal clamping solution for precision manufacturing, assembly lines, and robotic systems.
Main features:
- Robust silver aluminum body design
- Dual parallel jaws for stable clamping
- Reliable pneumatic drive system
- Precise positioning capability
- Suitable for various industrial automation applications

2. Installation Instructions
2.1 Pre-installation Preparation
- Ensure the installation environment meets the product working conditions
- Check that the product packaging is intact and undamaged
- Prepare necessary installation tools and accessories
- Confirm that the air source pressure is within the product's allowable range
- Confirm that the installation location has sufficient space for jaw opening and closing movements
2.2 Installation Steps
- Shut off the air supply to ensure safety during installation
- Use appropriate tools to mount the mechanical gripper on a robotic arm or fixed bracket
- Ensure mounting bolts are securely tightened to prevent loosening
- Connect the air supply line to the air inlet of the mechanical gripper
- Use sealing tape or sealant to ensure tight connections and prevent air leakage
- Check all connections for firmness
- Test the opening and closing movements of the gripper to ensure normal operation
2.3 Installation Notes
- Avoid strong impact to the mechanical gripper during installation
- Ensure correct installation position to avoid interference between the gripper and other equipment
- Air supply connections must comply with pneumatic system safety standards
- Installation environment should avoid high temperature, humidity, and corrosive gases
- Regularly check the tightness of installation connections

3. Usage Methods
3.1 Pre-operation Check
- Confirm that the air source pressure is within the product's allowable range
- Check that all connections are firm and free from air leakage
- Test the opening and closing movements of the mechanical gripper to ensure normal operation
- Confirm that the gripper surface is undamaged and kept clean
3.2 Basic Operation
- Turn on the air supply, the mechanical gripper is ready for operation
- Control the opening and closing movements of the mechanical gripper through a solenoid valve
- When gripping a workpiece, ensure the jaws are fully closed and the workpiece is securely clamped
- When releasing a workpiece, control the jaws to open to an appropriate position
- Adjust the working pressure according to the size and weight of the workpiece to obtain suitable clamping force
3.3 Operation Notes
- Avoid exceeding the rated load capacity of the mechanical gripper
- Ensure the workpiece is within the effective clamping range of the jaws
- If abnormal sounds or unsmooth movements are found, stop using immediately and inspect
- When not in use for a long time, it is recommended to turn off the air supply and release the gripper

4. Maintenance
4.1 Daily Maintenance
- Regularly clean the gripper surface to remove dust and oil
- Check the wear condition of the jaws, replace them promptly if severe wear is found
- Test whether the opening and closing movements of the mechanical gripper are smooth
- Check whether the air supply connections are firm and free from air leakage
4.2 Regular Inspection
- Check the wear condition of the jaws monthly
- Inspect the wear condition of internal seals quarterly
- Check the working status of the pneumatic system every six months
- Perform a comprehensive cleaning and maintenance annually
4.3 Maintenance Notes
- Use neutral detergent for cleaning, avoid using corrosive solvents
- Ensure the air supply is turned off during maintenance to avoid accidental activation
- If parts need to be replaced, it is recommended to use original accessories
- When the mechanical part is damaged, contact professional personnel for repair

5. Troubleshooting
-
Gripper cannot close
- Insufficient air supply pressure: Adjust air supply pressure
- Internal jamming: Clean internal parts
- Seal damage: Replace seals
-
Gripper cannot open
- Abnormal control signal: Check control circuit
- Internal jamming: Clean internal parts
- Spring damage: Replace spring
-
Air leakage
- Loose connections: Reconnect and reinforce
- Seal wear: Replace seals
- Valve body damage: Contact supplier for repair or replacement
-
Insufficient clamping force
- Insufficient air supply pressure: Adjust air supply pressure
- Internal leakage: Check and repair leakage
- Seal damage: Replace seals
Gripper cannot close
- Insufficient air supply pressure: Adjust air supply pressure
- Internal jamming: Clean internal parts
- Seal damage: Replace seals
Gripper cannot open
- Abnormal control signal: Check control circuit
- Internal jamming: Clean internal parts
- Spring damage: Replace spring
Air leakage
- Loose connections: Reconnect and reinforce
- Seal wear: Replace seals
- Valve body damage: Contact supplier for repair or replacement
Insufficient clamping force
- Insufficient air supply pressure: Adjust air supply pressure
- Internal leakage: Check and repair leakage
- Seal damage: Replace seals













