Standard Swing Clamp – Flange Base
B1.881

Standard Swing Clamp – Flange Base

3000 to 7250 psi max

Specs & Information

Features

  • available in 4 clamp sizes
  • single or double acting
  • standard fittings or manifold mounted
  • choice of clockwise, counterclockwise, or zero° swing
  • available with 45° and 60° swing angles by special order

 

 

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B1.881_swing_clamp_image
Swing Clamps utilize a sturdy helical-cam mechanism to swing the clamping arm clear for unrestricted loading. The Standard Swing Clamps shown here accept a wide variety of clamping arms, with maximum allowable operating pressure depending on the type of arm selected (3000 to 7250 psi max). These Swing Clamps incorporate our unique safety-clutch mechanism. If the clamping arm strikes an unexpected object during its swing, the clutch disengages to avoid damaging the object or the clamp’s helical-cam mechanism. Clamping arm can be mounted to start its 90° swing from any position within 360°. The flange-base version shown here provides many plumbing options, including manifold mounting.
Available in four clamp sizes, single or double acting, standard fittings or manifold mounted, with a choice of clockwise, counterclockwise, or zero° swing. Available with 45° and 60° swing angles by special order. Double-acting clamps are also available with longer clamping strokes (25mm or 50mm) by special order. Clamping force at 7250 psi for single-acting clamps with a pivoting clamping arm:
          1060 Lbs     (3 series)
          2700 Lbs     (5 series)
          4200 Lbs     (6 series)
          7300 Lbs     (7 series)

Design Considerations 

These Swing Clamps incorporate our unique safety-clutch mechanism. If the clamping arm strikes an unexpected object during its swing, the clutch disengages to avoid damaging the object or the clamp’s helical-cam mechanism.  Do not exceed maximum fluid flow rate in table. For extended clamp life and proper operation of the safety clutch, a simple flow-control valve may be required if the fixture is powered by a high-flow-rate power source and only contains a few clamps. Clamping time should be at least one second.

Clamping Action 

Swing Clamps are pull-type cylinders where part of the total stroke is used to swing the piston, and the remaining stroke is available as the clamping range. Applying fluid pressure swings arm 90° over workpiece then clamps down. Single-acting version has a fast, totally dependable spring return that lifts arm then swings it back 90° for loading/unloading. Optional fluid return (double acting). Available with clockwise, counterclockwise, or zero° swing.

Mounting & Fluid Supply 

 

              

      Version 1 – Standard Fittings                                     Version 2 – Manifold Mounting 

These Swing Clamps are available in two versions, one for use with standard fittings and one for manifold mounting. Version 1, for standard fittings, has a 1/4″ BSPP port (two for double-acting clamps). Version 2, for manifold mounting has O-ring ports underneath instead of standard ports. Do not use NPT fittings. For manifold mounting, the mounting surface must be ground flat to ensure proper O-ring sealing.

Both clamp versions can be fastened to the top of a fixture plate with four socket-head cap screws inserted through the flanged base from above. Version 2 clamps, with standard fittings, can alternatively be mounted:
a) Through a bored hole in the fixture plate, fastening with four socket-head cap screws inserted through the flanged base from below;
b) Through a tapped hole in the fixture plate, securing with a lock ring;
c) Through a bored hole in the fixture plate, securing with one or two lock rings.
Clamping Arm 
Order clamping arm separately  – see clamping arm accessories. Maximum allowable operating pressure depends on the type of arm selected. Choose a Standard Clamping Arm for 3000 psi max, a Gooseneck Clamping Arm for 5000 psi max, or Pivoting Clamping Arm for 7250 psi max (requires a rear support). Longer, custom clamping arms will further reduce allowable operating pressure, inversely proportional to arm length.
Document Title Language File Type

Flange-base swing clamps are used together with Work Supports on a pallet fixture. All components are manifold mounted, so the fixture is entirely free of tubing lines.

Clamping Force with Pivoting Arm