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Micro™ Expanding Machinable Clamps

Jergens Micro™ Expanding Machinable Clamps are available with extra material on the clamping jaw so they can be machined to conform to the shape of your workpiece - enabling you to fixture unusual applications easily. The specially designed steel wedge spreads the clamping force uniformly on both sides of the aluminum channel. A unique locking plate is provided to make the clamp rigid while machining the jaw to your specifications, without vibration.
Features, Benefits, & Product Specifications:
  • Material: Channel 7075-76 Aluminum
  • Compact design
  • Allows more parts to be mounted on a fixture
  • Mounting screws included
Note(s): 
  • Locking plate is used only to machine jaws. Remove to clamp the workpiece.
  • For the "A" dimension: The distance needed between workpieces for clamp clearance, drill, and tap mounting holes in the center of the “A” dimension.
  • The "F" dimension is the amount of machinable stock on jaws.

Documents

Micro™ Expanding Machinable Clamps

Select a part number for CAD drawings, price and stock availability.

Part Number CAD Unit Locking Plate A (In) B (In) C (In) D (In) E (In) F (In) G (In) Mounting Screw H I Maximum Holding Force (lbs) Recommended Expansion Stroke (In)
68770 Inch Yes 1.125 0.50 0.62 0.420 0.18 0.18 0.400 2-56 8-32 500 0.015
68771 Inch No 1.125 0.50 0.62 0.420 0.18 0.18 0.400 2-56 8-32 500 0.015
68772 Inch Yes 1.500 0.75 0.94 0.632 0.37 0.26 0.624 6-32 1/4-20 1500 0.015
68773 Inch No 1.500 0.75 0.94 0.632 0.37 0.26 0.624 6-32 1/4-20 1500 0.015
68774 Inch Yes 2.000 1.00 1.25 0.820 0.50 0.39 0.812 6-32 5/16-18 2000 0.020
68775 Inch No 2.000 1.00 1.25 0.820 0.50 0.39 0.812 6-32 5/16-18 2000 0.015
68776 Inch Yes 3.000 1.50 1.87 1.215 0.75 0.62 1.200 10-32 1/2-13 3500 0.030
68777 Inch No 3.000 1.50 1.87 1.215 0.75 0.62 1.200 10-32 1/2-13 3500 0.030
68778 Inch Yes 4.000 2.00 2.50 1.625 1.00 0.80 1.625 1/4-20 5/8-11 6000 0.040
68779 Inch No 4.000 2.00 2.50 1.625 1.00 0.80 1.625 1/4-20 5/8-11 6000 0.040
68870
68872
68874
68876
68878
Part Number CAD Unit Locking Plate A (mm) B (mm) C (mm) D (mm) E (mm) F (mm) G (mm) Mounting Screw H I Maximum Holding Force (N) Recommended Expansion Stroke (mm)
68770
68772
68774
68776
68778
68870 Metric Yes 28.6 12.7 15.7 10.67 6.3 4.6 10.16 M2 M4 2224 0.4
68871 Metric No 28.6 12.7 15.7 10.67 6.3 4.6 10.16 M2 M4 2224 0.4
68872 Metric Yes 38.1 19.1 23.9 16.05 9.4 6.6 15.87 M4 M6 6670 0.4
68873 Metric No 38.1 19.1 23.9 16.05 9.4 6.6 15.87 M4 M6 6670 0.4
68874 Metric Yes 50.8 25.4 31.8 20.83 12.7 9.9 20.62 M4 M8 8895 0.6
68875 Metric No 50.8 25.4 31.8 20.83 12.7 9.9 20.62 M4 M8 8895 0.6
68876 Metric Yes 76.2 38.1 47.5 30.86 19.1 15.7 30.48 M5 M12 15565 0.8
68877 Metric No 76.2 38.1 47.5 30.86 19.1 15.7 30.48 M5 M12 15565 0.8
68878 Metric Yes 101.6 50.8 63.5 41.28 25.4 20.3 41.28 M6 M16 26690 1.1
68879 Metric No 101.6 50.8 63.5 41.28 25.4 20.3 41.28 M6 M16 26690 1.1

Documents and Videos

  • Operating Manual
  • Operating Manual - 81600 ONLY
  • Jergens Production Vise System
  • Jergens Production Vises Features and Benefits
  • Vertical Machine Solutions
  • Horizontal Machine Solutions
  • Hydraulic Production Vises
  • Production Vises