Aggressive Hydraulics Custom Telescopic Hydraulic Cylinders

• Single and Double Acting Telescopic Hydraulic Cylinder Types
• Common hydraulic pressures up to 2,000 psi, special applications optional up to 3,000 psi
• Max bore size available up to 15″
• Min stage size available down to 3/4″
• Common stroke lengths up to 500″
• Number of stages common up to 5

• Single-acting cylinders use hydraulic pressure to extend, and retract due to load from gravity or some other external force.
• Hydraulic flow and pressure extends the cylinder
• Gravity or some other external force will retract the cylinder
• Holds position
• Long stroke in a compact closed length
• Larger outer diameter than rod cylinders
• Less complex design than double acting

• Double-acting cylinders use hydraulic force for both extension and retraction.
• Hydraulic power retracts cylinder as opposed to gravity/force
• Retract force is able to pull load
• Conventional telescopic cylinders
  • Both ports located on rod end
  • Piston seals are typically cast iron rings
  • Cylinder is not designed to hold load in exact positions (drifting)
  • Minimum flow required to prevent stalling
• Special features can be designed into telescopic cylinders
  • Both ports on the barrel design avoids moving hoses and wear patterns
  • Positive piston seals allow cylinder to hold the load and eliminate the minimum flow requirement
  • Less dead lengths per stage than a conventional double acting telescopic

Partially double-acting cylinders are typically used in over-center applications. These cylinders will provide retract force for a portion of the stroke, and gravity completes the retract cycle.

• Plunger rod can be double acting and sleeves single-acting.
• Largest sleeve can be double acting and balance of sleeves and plunger rod single-acting.
• Skip-a-sleeve option, which is a sleeve or stage is skipped during design, thus increasing effective area and retract force.

We can handle all of your mounting requirements. Contact us for any special mounting requests.

• Clevis
• Clevis – Threaded
• Cross Tube
• Drill Thru Base Mount
• Drill Thru Rod End
• Flange
• Foot (Heavy-Duty)
• Foot (Light-Duty)
• Lug
• Spherical Base End
• Spherical Rod End
• Threaded Base End (Female)
• Threaded Base End (Male)
• Threaded Rod End (Female)
• Threaded Rod End (Male)
• Trunnion