What is a pneumatic claw? The uses and principles of pneumatic grippers

Jul 10, 2025

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What is a pneumatic claw?
An air gripper is a device that uses compressed air to hold objects.
Specifically, it refers to a mechanism that maintains or lifts objects by evacuating air and changing pressure. The pneumatic gripper does not come into direct contact when holding objects, so the risk of scratches and damage is relatively small.
It is particularly suitable for handling delicate products and materials. In addition, it can also grasp objects of various shapes and sizes. By changing the materials of the suction cup and the holding part, designs suitable for various uses can be created. It also allows for precise control and enables objects to be placed in precise positions.
However, the pneumatic gripper has a very strong suction force, so if it is not operated properly or malfunctions, it may pose a danger to people and surrounding objects. It is very important to follow appropriate safety measures and operating regulations.
The uses of the air claw
Air fixtures are used in a variety of applications. The following is an example of how to use the pneumatic gripper.
1."Manufacturing industry"
In automobile manufacturing, pneumatic grippers are used to handle various parts such as engine components and body parts. This is particularly advantageous when precisely aligning heavy parts or those with complex shapes.
Air clamps are also frequently used on electronic product assembly lines to handle circuit boards and small components.
2. Logistics and Warehouse Management
Air clamps are used for loading pallets and handling container loads in distribution centers and warehouses. Efficient picking operations can reduce working hours and improve the logistics process.
3. Food industry
It is used for packaging delicate foods such as cakes and chocolates. High productivity can be achieved while preventing product damage.
Air grippers are also used in transportation operations within factories to effectively handle boxes and packaged food.
Principle of pneumatic claw
The air gripper uses air pressure to hold objects. Air grippers are typically composed of suction cups or clamps made of flexible materials and pipes or valves for supplying air.
The pneumatic gripper fixes objects by attaching the suction cup or grasping part to the surface of the object. At this point, the area around the suction cup and the handle is often sealed to prevent air from entering.
Next, air is supplied from the air compressor and other devices to the air gripper, and then conveyed through the inner pipe to the suction cups and the gripper. When air is supplied to the air gripper, the pressure within the suction cup or the gripper area will increase.
This pressure makes the suction cup or handle firmly adhere to the surface of the object, thus enabling the object to be fixed. When releasing an object, the pressure inside the air gripper changes to release the suction cup or the clamping part. This can allow you to let go of the object.
How to choose a pneumatic gripper
Several important factors should be considered when choosing a pneumatic gripper. The following are examples of some factors to consider when choosing pneumatic fixtures.
1. Rubber material
The rubber material used for the suction cup and holding part of the pneumatic gripper must be selected based on the characteristics of the object being processed. For instance, if hardness or wear resistance is required, harder rubber with excellent durability is advantageous.
On the other hand, when dealing with delicate products, softer rubber can be chosen.
2. Recommended load
The air clamp has the recommended maximum payload. It is important to know in advance the weight of the object to be moved and choose a pneumatic gripper with a recommended payload capacity corresponding to that weight.
Exceeding the recommended payload capacity may cause the air gripper to fail to work effectively or may be damaged.
3. Use air pressure
The air fixture requires a constant air pressure to operate normally. When choosing an air gripper, please ensure that it can operate within an appropriate range of air pressure.
If the supplied air pressure is incorrect, the air gripper may lack clamping force or damage the object due to excessive pressure.

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