R Series

Hydraulic Mill-Type Cylinder

Bore Sizes: 4″ – 16″ | Available in pressure ratings of 300 Bar (Metric), 3000 PSI and 5000 PSI 

mill type cylinder load bore size graph
mill type cylinder

More Features, Less Maintenance, Use the R Series

Designed in response to our customers’ need for a more durable, more reliable product to reduce their replacement and maintenance costs.

Features

  • Reduce design and development costs
  • Extra bearing surface accommodates additional side loading
  • Advanced gland design keeps the cylinder interior clean for increased seal longevity
  • Custom mounts to suit any application
  • Heavy duty construction with steel flanged end caps and heavy wall tubing
  • 4 wrench flats on piston rod + option to accept LDT
  • Extra-long heavy duty rod bushing with dual wipers
  • Made-to-order stroke lengths
  • High pressure rating – well above industry standards
  • Wide ductile iron piston for long bearing
  • Dual buffer rod seals
  • Custom mounts to suit any application
  • Fully backed by Cowan Dynamics’ warranty and service/support guarantee

R5

5000 psi

Bore Size: 4” to 16”
Piston Rod Diameter: 2” to 10”

R3

3000 psi

Bore Size: 4” to 16”
Piston Rod Diameter: 2” to 10”

RM

Metric Cylinder: 300 bar

Bore Size: 40mm to 200mm
Piston Rod Diameter: 22mm to 140mm

Download Our R Brochures


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Design and Materials

Mill-Type Hydraulic Cylinder - R Series Cutaway
Gland Seal Options for Mill-Type Hydraulic Cylinder - R Series

Gland Bushing

  • Standard seals are suitable for water glycol or standard mineral oil; High temp seals available as an option

  • PTFE – Low friction; Excellent low-pressure seal ability, long service life

  • Bronze Teflon Wiper

Stainless Steel

316 Stainless Construction for corrosive applications.

Including attachments such Rod clevis and Eye brackets

Stainless Steel Option for Mill-Type Hydraulic Cylinder - R Series

In Market Example

Improving the control of the production of steel plates on a Duo rolling mill.
In Market Example of Mill-Type Hydraulic Cylinder - R Series

Select an R Series cylinder for your operation today.

You will receive a quote within just 24 hours.
Complete the form to receive a quote within 24 hrs.