EHTC TELESCOPING PNEUMATIC CYLINDERS

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Since our inception in 1992, Ergo-Help has lead the industry for custom, multiple-stage, space-saving, telescopic air cylinders.  

Our patented EHTC telescoping cylinder design enables each stage to retract fully into each successive stage, allowing for the shortest possible retracted stage matched to its stroke.

With up to eight stages configurable into a cylinder design, by far surpassing the industry standard for maximum number of telescoping cylinder stages, Ergo-Help's EHTC multi-stage cylinders are the primary choice for applications where maximum stroke must be paired with minimum retracted length.
EHTC cylinder tech details:
  • single or double-acting
  • acetal pistons and bearings
  • all aluminum alloy construction
  • dual nitrile rubber seals per each stage 
  • custom stroke/retracted length/force rating
  • pre-lubricated, powered with dry air
  • max working pressure of 130 psi
  • work temp. range -10 to +150F
  • fully repairable

Some of our EHTC multi-stage cylinders in action:

Below is brief technical data on our EHTC single and double-acting telescoping cylinders.
The charts show longest possible stroke per number of stages (2nd column from the right).
The charts also show the longest stroke possible with shortest retracted length (last column).  
These are general guidelines, please contact us directly for full cylinder configuration options.

SINGLE-ACTING CYLINDERS

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EHTC.5SP 2-stage cylinders with 
the EHPC-2 air control module 
EHTC.5SP 5-stage cylinder with the EHPC-5 vacuum valve (air extension, vacuum retraction)

DOUBLE-ACTING CYLINDERS

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We build a number of air control modules with which to operate our EHTC.5 DPL series cylinders.  Please visit our Air Control Module page for some options.