Pneumatic clamping cylinders are devices designed to hold or secure materials and equipment during operations. These clamps are especially useful for rapid clamping in production environments, ensuring the actuator rod remains fixed in a vertical position to prevent unintended retraction—an important safety feature for operators.
They rely on spring-based mechanisms that are held open by compressed air. In the event of a pressure drop—due to a leak, for example—the clamp automatically engages, locking the rod in place until system pressure is restored. Mounting options vary and typically include through-hole and tapped mounting styles.
At Pneumatic Resources, we offer a wide selection of pneumatic clamping cylinders with bore sizes ranging from 12 mm to 63 mm. Our models feature corrosion-resistant clamping arms and are built to handle a variety of clamping requirements efficiently.
Applications of Clamping Cylinders
These cylinders use air-driven mechanisms to initiate clamping, making them suitable for securing items during repairs or material handling processes. They are widely used in robotic systems and automated workflows, particularly in the automotive and industrial manufacturing sectors.
Types of Pneumatic Clamping Cylinders
Pneumatic cylinders function by converting compressed air energy into linear motion. Clamping variants are available in several forms to meet specific operational needs, including:
Rotary clamping actuators: Utilize lubricated compressed air and feature clamping arms to hold materials securely.
Pancake clamping actuators: Compact and space-efficient, these units can function with either lubricated or dry air.
Pin clamping actuators: Offer both precise positioning and secure clamping through integrated guide pins.
Rotary Clamp Cylinder
Double-acting rotary clamp actuators, operating on lubricated, filtered compressed air. The piston rod is rotated through 90° as it extends or retracts, and may be used for clamping by using the optional arm. All cylinders have a 20mm stroke.
Pressure range: 1 - 10bar, 15bar proof pressure
Temperature range: -10°C to +70°C
Compact design
Strong clamping force
End of stroke buffer
Left or right rotation
Autoswitch sensors available
The SMC rotary clamp cylinder allows for a moment of inertia three times higher, enhancing performance and versatility across different applications.
Weight 0.44092 lb
Length has been reduced in comparison to MK2 and is similar in length to MK.
Bore sizes (mm): 12, 16, 20, 25, 32, 40, 50, 63
Compact auto switch D-M9 can be mounted on 4 sides.
Magnetic field resistant auto switch can be used.
2 types of cylinder mounting are available with one body.
The SMC MK-Z series rotary clamp cylinder has compact auto switch can be mounted on 4 sides. It has 2 types of cylinder mounting are available with one body. The overall length is the same as the conventional style, and mounting dimensions are interchangeable with the MK series. It used magnetic field resistant auto switch.
Clockwise or counter clockwise rotary direction
Auto switch capable
Allowable moment of inertia 3 times higher
Maintenance can be performed for all sizes
Length has been reduced in comparison to MK2 and is similar in length to MK.
Bore sizes (mm): 12, 16, 20, 25, 32, 40, 50, 63
Compact auto switch D-M9 can be mounted on 4 sides.
Magnetic field resistant auto switch can be used.
2 types of cylinder mounting are available with one body.
Rotary Clamp Cylinder
Double-acting rotary clamp actuators, operating on lubricated, filtered compressed air. The piston rod is rotated through 90° as it extends or retracts, and may be used for clamping by using the optional arm. All cylinders have a 20mm stroke.
Pressure range: 1 - 10bar, 15bar proof pressure
Temperature range: -10°C to +70°C
Compact design
Strong clamping force
End of stroke buffer
Left or right rotation
Autoswitch sensors available
Rotary Clamp Cylinder
Double-acting rotary clamp actuators, operating on lubricated, filtered compressed air. The piston rod is rotated through 90° as it extends or retracts, and may be used for clamping by using the optional arm. All cylinders have a 20mm stroke.
Pressure range: 1 - 10bar, 15bar proof pressure
Temperature range: -10°C to +70°C
Compact design
Strong clamping force
End of stroke buffer
Left or right rotation
Autoswitch sensors available
The SMC MK series rotary clamp cylinder has compact auto switch D-M9 can be mounted on 4 sides. The magnetic field resistant auto switch can be used. It has 2 types of cylinder mounting are available with one body.
Bore size 20mm
Port thread M
Clamp stroke 30mm
The SMC MK series standard rotary clamp cylinder's clamping rotary direction can be selected to suit the setting conditions. The rotary direction can be clockwise or counter clockwise and has rotary angle of 90°.
Allowable moment of inertia three times higher
Possible to mount small auto switches on 4 surfaces
Strong clamping force
The SMC MK series rotary clamp cylinder has compact auto switch D-M9 can be mounted on 4 sides. The magnetic field resistant auto switch can be used. It has 2 types of cylinder mounting are available with one body.
Bore size 25mm
Port thread M
Clamp stroke 20mm
For these non-cancellable (NC), and non-returnable (NR) products, Terms and Conditions apply.
The SMC MK rotary clamp cylinder is 2 colour indication solid state auto switch. It has standard stroke range.
Overall length is shortened
2 types of clamping rotary direction available
The SMC MK series rotary clamp cylinder has compact auto switch D-M9 can be mounted on 4 sides. The magnetic field resistant auto switch can be used. It has 2 types of cylinder mounting are available with one body.
Bore size 25mm
Port thread M
Clamp stroke 20mm
