Custom Automotive Diaphragm Chuck - Plastic Top Tooling

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Northfield 3-jaw, 5” Diaphragm Chuck (DPH-500) with custom plastic top tooling
Northfield 3-jaw, 5” Diaphragm Chuck (DPH-500) with custom plastic top tooling

Customer Brief

Our customer is a heavy duty fuel pump and injector systems manufacturer. They requested a method to accurately grip their small (.098” OD) fuel injector plungers without marking them.

Challenge

Chuck close up, with part and custom stop.

The tip of their part must rest in a carbide seat, ground central to the chuck. This requires the special part stop.

Northfield Solution

Northfield 3-jaw, 5” Diaphragm Chuck (DPH-500) with custom plastic top tooling, disassembled view with part.

The jaws are made from a special, highly abrasion-resistant, engineered plastic. Designed to withstand repeated clamping with minimum wear. The bore diameter gripping the part yields an accuracy and repeatability of more than 50millionths” TIR total runout to the chuck’s center line.

Do you have a similar part? Then get in touch and see how we can help.

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