Hand Operated Hydraulic Squeezer Arrives


It’s FINALLY in hand!  After 9 months of development we have production models of our new hand triggered hydraulic rivet squeezer coming off of the CNC machine.  The 3D machining of the handle was a totally new thing for our shop and a larger learning curve than we expected.  Combined with my expectations of feel and function, all while hitting an affordable price target, made this project a frustrating but very rewarding learning experience.
Mark Swinford of Numatx tools (fellow RV builder) designed the foot pedal operated hydraulic squeezer in 2010.  It is the lightest, most compact system for squeezing rivets and dimples found anywhere.  Mark received a patent on this design this summer, and we are still selling his pedal operated version.  Many customers wanted a unit that was actuated at the tool rather than on the floor. This design is C-Head that you see below.  Using standard CP-214 pneumatic yokes this squeezer weighs 1 lb. vs. the 4 lb. CP version.  Comparing size, this squeezer is 4.5″ tall x 3.5″ wide x 1.5″ thick , vs the CP 9″ x 4″ x 3″.

Current Project Status:
Shown to the left is the new squeezer fully assembled with the exception of the switch button and the connection wire.  

The button shown in blue is the 3D printed ABS plastic version of this button.  The Aluminum button material is ordered and we should have the buttons complete by the week of Dec. 17th.  Leaving only the wire to complete.


Below is the squeezer with all of the individual parts, both in assemblies, and alone.  The piston plug and swivel alone contain 11 individual pieces, but doing it this way provides an unlimited degree of freedom.  Compression ram has a universal joint (Numatx design) and is threaded with our trademark 32 pitch thread.  This means changing from a -4 length rivet to -4.5 is a simple half turn counterclockwise, no measuring involved.



What’s next??

The intensifier section.  We are packaging the Numatx intensifier inside a tool box.  This will provide a place to store the entire system, allow for protection so the intensifier can be dragged around the floor while in use, and house the necessary enclosure for battery, wiring, charger, air solenoids, and connections.

We have designed and manufactured the Aluminum pneumatic airline connection plate, and the Aluminum slotted hydraulic hose exit plate (also housing foot and hand switch jacks, and charging jack).  We have parts on the shelf for the boxes, batteries, solenoids, air fittings, and charger.

Designed is the intensifier base plate, material is in house, and we expect to have finished by the end of this week (Dec. 14th).  We are in need of more intensifiers from Numatx to complete.

Yet to design:

  • Hold down bracket for the intensifier.
  • Hold down bracket for solenoids.
  • Charging circuit and circuit board.
  • Platform to cover controls in bottom and allow for shelf for storing hydraulic hose when system is not in use.
  • Custom foam insert for top tray to store and protect C-Head, Pull Rivet Head, and Foot Control Switch.
First of the year:
  • Switch operated Pull Riveter Attachment (design underway)

~~~~   Future progress will be posted on this blog as well as availability date.    ~~~~

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