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Custom displacement welded hydraulic cylinder for the automotive lift industry

Challenge: Designing and manufacturing cylinders of various sizes for very specialized applications.

Pneu-Hyd Industries was selected by a long time customer to become a supplier of custom displacement welded hydraulic cylinders that would ultimately be used in a four-post vertical automobile lift application for high-end homes. The customer offers lifts of different sizes, challenging us to design cylinders to be effective at each size variation. Our expert engineers quickly arrived at solutions for this problem, and advanced fabrication processes including saw cutting, high speed CNC machining, certified welding techniques, and chrome plating were utilized to construct and finish the units.

Completed auto lift cylinders varied in bore size from 2.125" to 2.875", stroke sizes 90" to 144", and rod lengths of 1.75"- 2.00". A 9/16 -18 O-ring boss port was integrated, and mounts included a trunnion mount on barrel of cylinder, and rod end mount 1" long with 3/8 - 16 tapped threads. The chrome plated rod was designed to handle 100K of tensile load, and the cylinders would operate at 3000 psi pressure. Every unit was required to undergo thorough testing in order to ensure leak proof construction, afterwards a custom paint finish was applied, and the unit packaged and shipped to the end user for installation. Pneu-Hyd is an experienced manufacturer of custom cylinders, welcoming the challenges of creating for unusual applications. For more information about this displacement auto lift welded hydraulic cylinder construction, or our other specialized cylinder manufacturing capabilities please see the table below or contact us directly.


Product Description
Displacement Welded Hydraulic Cylinders

Capabilities Applied/Processes
  • Engineering Design
  • Saw Cutting
  • CNC Machining & VMC Machining
  • Welding
  • Assembly
  • Chrome Plating - Thickness: 0.001"
  • Painting

Product Specifications
  • Bore Size: 2.125" - 2.875" Bore
  • Stroke: 90"- 144" stroke
  • Rod: 1.75" - 2.00" chrome plated rod - 100 K tensile strength
  • Closed Length: Various retracted lengths
  • Ports: One 9/16 -18 O-ring boss port
  • Mounts - one trunnion mount on barrel of cylinder
    • Rod End - 3/8 - 16 tapped threads 1" long in rod end
  • Operating Pressure - 3000 PSI

Additional Facts

Special Attachments - Flame cut trunnion

In process testing/inspection performed

Pressure Testing, Leak Testing

Industry for Use

Vertical Automobile Lifts

Delivery/Turnaround Time

5 weeks from receipt of approved drawing

Delivery Location


Standards Met

Customer Specifications, 2D CAD Drawing

Product Name

Car Lifts

In addition to our ISO 9001 designation, we also carry a number of industry recognized certifications.

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