Hydraulicspneumatics Com Sites Hydraulicspneumatics com Files Uploads Custom Inline Archive Www hydraulicspneumatics com Content Site200 Articles April2004 Plastic0500png 00000000453

Retract clamping protects piston rod

April 1, 2004
Air entering rod end of cylinder retracts piston rod to actuate clamp.

Air entering rod end of cylinder retracts piston rod to actuate clamp.

When the high force potential of hydraulics is not required such as clamps for spot welding pneumatics is a natural. Pneumatics is fast, re-liable, fire-proof, and unaffected by the immense electrical noise generated by spot weldinng guns.

One potential problem, however, is weld spatter. When operating, spot welding guns can shoot showers of sparks and debris out in every direction. If some of this debris finds its way onto the extended rod of a pneumatic cylinder, it can stick to the rod and quickly wear out rod seals.

Leaky seals impede cylinder retraction because some of the air needed to retract the piston instead leaks past the rod seal. Providing a protective boot or a tougher seal can extend seal life, but both of these remedies add cost and don't address the source of the problem.

A simpler, permanent, and more cost-effective solution Peninsular Cylinder s Model PC hold-down clamp. It protects the piston rod by retracting it to accomplish clamping. Granted, the applied force is reduced because of the smaller piston area on the rod side.

The clamping unit is powered by Peninsular s 2-1/2, 3-1/4, or 4-in. bore NFPA cylinder, which connects to the clamp assembly through a mounting flange. This allows replacing the cylinder without disturbing the clamp assembly.

For more information from Peninsular. Cylinder Co., visit www.peninsularcylinders.com or call (800) 525-7968.

Continue Reading

Oct. 5, 2022
Through mergers and acquisitions, companies have the opportunity innovate faster and serve new markets.
Jan. 13, 2020
The goal is to match kinetic energy of the press to the work required. It’s seldom quite that simple.

Sponsored Recommendations

Feb. 6, 2024
Newcomers to medical device design may think pressure and flow rate are sufficient parameters whenselecting a pump. While this may be true in some industrial applications, medical...
Feb. 6, 2024
Variable volume pumps, also known as precision dispense pumps, are a positive displacement pump that operates by retracting a piston to aspirate a fluid and then extending the...
Feb. 6, 2024
Acheck valve, a non-return or one-way valve, is a mechanical device that allows a gas or liquid to flow freely in one direction while preventing reverse flow in the opposite ...
Feb. 6, 2024
Engineers tasked with managing fluid flow talk about both holes and calibrated orifices, but they are two distinct entities. A hole can be any opening, but a calibrated orifice...