Pneu-Hyd Industries | Manufacturer of Hydraulic Cylinders

Telescopic Hydraulic Cylinder for the Oil & Gas Exploration Industry

CNC Machining of Telescopic Hydraulic Cylinder
CNC Machining of Telescopic Hydraulic Cylinder

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Challenge: To develop and maintain new business in industries suited to our professional vision.

Project description:
A customer in the oil & gas industry was seeking a supplier for their large 3 stage custom welded telescopic oil field cylinder. Pneu-Hyd Industries was contracted to manufacture the unit, working from customer supplied drawings and input from their engineering staff. The design phase was challenging as the cylinder called for the first two stages to be single acting and the third stage to be double acting. This double action would initiate cylinder retraction; once in motion the other two stages would come down with the weight of the load. Our experience and innovative approach enabled us to effectively solve the initial dilemma, designing this part to specification.

Materials used for this part met 70 - 80 KSI tensile strength criteria. Ductile iron, and C1045 steel were manipulated to exacting profiles employing turning and milling processes on advanced CNC machinery. The outer barrel was honed, and certified welding was carried out to finish the unit. Chrome plating was applied to all three cylinders and the hollow rod. Measurements for this cylinder were 9" OD and 8" ID outer barrel, with a 167.00" stroke, and 4.375" diameter hollow rod. The cylinder was inspected for quality and integrity at each station, with a full inspection performed upon completion. Turnaround time for this project was 6 to 8 weeks for production, and 2 weeks for design and approval. For more information about this custom telescopic hydraulic cylinder manufacturing project, or our other capabilities manufacturing specialty cylinders please see the table below or contact us directly.

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Design of a Telescopic Hydraulic Cylinder - Project Highlights

Product Description
3 stage custom welded Oil Field Cylinder
Capabilities Applied/Processes
Saw Cutting
CNC Machining & VMC Machining
  • CNC Turning
  • CNC Milling
  • Honing
Chrome Plating
Product Specifications

3 Stage Telescopic - 9" OD x 8" ID outer barrel x 167.00" Stroke x 4.375" Hollow Rod.

Outer barrel honed, the three stages along with the hollow rod have chromed OD.

Material Used
70 - 80 KSI Tensile Strength Material
Ductile Iron
C1045 Steel
Honed Tubing, Chromed Tubing and Shafting
All Packing Material Supplied with Cylinder.
In process testing/inspection performed
In process testing performed at every work station and a final inspection performed upon completion.
Industry for Use
Oil & Gas
Delivery/Turnaround Time
6 - 8 Weeks Production Time
2 Weeks Design and Approval Time
Delivery Location
Standards Met
Customer Specifications, 2D CAD Drawing
Product Name
Telescopic Hydraulic Cylinder

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