Pneumatic Clamps | McMaster-Carr

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	Clamping Action Clamping Action

	Hold Down
	Push Only

	Clamp Type Clamp Type


Hold Down	Fixture

Push/Pull

	Holding Capacity Holding Capacity

1,000 lbs. or greater

	Overall Height When Clamped Overall Height When Clamped

Less than 4"

4" to 4.9"

5" or greater

	Body Material Body Material

Steel

Aluminum

	Holding Screw Tip Material Holding Screw Tip Material

Steel

Rubber

	Air Inlet Thread Type Air Inlet Thread Type

NPT

UNF

Metric

	Maximum Air Inlet Pressure Maximum Air Inlet Pressure

	Maximum Temperature Maximum Temperature

	Minimum Temperature Minimum Temperature

	Air Inlet Pipe Size Air Inlet Pipe Size

1/8

1/4

10-32

	Overall Length When Clamped Overall Length When Clamped

	Arm Construction Arm Construction

Open

Solid

	Air Inlet Gender Air Inlet Gender

Female

Male

	Air Inlet Connection Type Air Inlet Connection Type

Pipe

Hose

Tube

	Maximum Clamping Clearance Maximum Clamping Clearance

	Air Outlet Thread Type Air Outlet Thread Type

NPT

UNF

Metric

	Air Outlet Gender Air Outlet Gender

Female

Male

	Mounting Hole Diameter Mounting Hole Diameter

	Number of Mounting Holes Number of Mounting Holes

	Air Outlet Pipe Size Air Outlet Pipe Size

1/8

1/4

10-32

	Air Cylinder Actuation Mechanism Air Cylinder Actuation Mechanism

Air Extend

Air Retract

	Arm Opening Angle Arm Opening Angle

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121 Products

Clamping and Workholding

Air-Powered Hold-Down
Toggle Clamps

These clamps have mounting holes on the bottom.

Long-Life Dual-Mount Air-Powered
Hold-Down Toggle Clamps

Suitable for production applications, these clamps have double the service life of other air-powered toggle clamps.

Dual-Mount Air-Powered
Hold-Down Toggle Clamps

Threaded Air-Powered
Hold-Down Fixture Clamps

Screw these clamps directly into a tapped hole in a fixture.

Air-Powered Hold-Down
Fixture Clamps

Mount using the holes in the base.

Air-Powered Push Toggle Clamps

Use for repetitive clamping and in production environments or hard-to-reach locations.

Vacuum Workholding Plates

Also known as vacuum chucks, these plates secure thin and flexible parts that can’t be held with vises or clamps for milling, drilling, routing, and finishing operations. Connect the system to your shop’s compressed air supply and it's ready to use.

Pick-and-Place Grippers

Air-Powered Grippers

Combine these grippers with your gripping fingers to lift and move items in pick-and-place applications.

Air-Powered Rotary Grippers

These grippers pick up a product and turn it 90° or 180° before releasing.

Robot-Ready Air-Powered Grippers

No need to find separate robot tool mounts and electrical connectors, these grippers come ready to attach to robot arms with standard ISO mounting hole patterns. Designed to run on compressed air, they’re often used to pick and place items in packaging, machine-tending, and machining applications.