Tri State Hydraulics

Hydraulic Cylinders

As a manufacturer of hydraulic cylinders, we specialize in the industrial tie-rod design – both the standard NFPA interchangeable tie-rod design and the custom design. We offer our hydraulic cylinders in the medium duty pressure range (pressure-rated per bore size) and the high pressure range.


In designing the HP Series high pressure hydraulic cylinders, Lehigh has developed a product that is rugged, reliable and the perfect balance of design, material and precision workmanship. HP cylinders can be designed for spring extend and retract, configured for all types of hydraulic fluids including water and with many sensing options including tie rod mounted limit switches up to 4″ bore.

  • 3,000 PSI nominal pressure rating
  • NFPA Tie Rod Design 1-1/2″ to 12″ bore
  • Standard Steel Construction
  • SAE660 bronze wetted rod bearing
  • Polyurethane rod seal, piston seals and tube O-Rings for standard petroleum based fluids
  • Chrome plated, Case hardened piston rods
  • High Pressure Hydraulic Catalog

Other seal options:
Viton – for high temperature and some fire-proof fluids
EPR- (Ethylene Propylene Rubber) Some fire proof fluids, some aircraft fluids, automotive brake fluid
Nitrile - vegetable oils, water/glycol, water
Seal options are available for low friction applications, servo applications, fluid pump applications, redundant rod seals with gland drain.

Sensing Options

  • BTL Micropulse tranducers

  • Strokemaster cylinder position sensors

  • *NEW* Tie rod mounted limit switches on high pressure (HP & LSSW) cylinders up to 4″ bore

  • Call for all Balluff options


HYDRAULIC & AIR CYLINDERS LEHIGH Fluid Power Hydraulic Cylinders