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CS4 / CN4 SERIES

Pneumatic
Tie Rod Cylinder

A full-range tie rod cylinder line built to ISO 15552 (CS4) and ISO 6431 / CETOP RP43P, RP53P (CN4) standards — ten bore sizes, twelve standard strokes and a magnetic-piston option for position sensing.

Bore 32–250mmISO 15552 & ISO 64310.5–10 BarMagnetic Option
UFlow CS4 CN4 Series pneumatic tie rod cylinder
Bore Range32–250 mm
Stroke Options25–500 mm
Working Pressure0.5–10 Bar
StandardISO 15552 / ISO 6431
Model Information

Cylinder Specifications

Cylinder Bore Ø
32, 40, 50, 63, 80, 100, 125, 160, 200, 250 mm
Standard Strokes
25, 50, 80, 100, 125, 160, 200, 250, 300, 320, 400, 500 mm
Media
Compressed air — filtered, lubricated
Working Pressure
0.5–10 Bar
Medium Temperature
5°C–60°C standard  |  5°C–150°C max with Viton seals
Materials of Construction
Aluminium, Brass, Steel, Acetal, Polyurethane, Nitrile (FKM for high-temp)
Mountings & Accessories

Configuration Options

Mountings
Foot, Front Flange, Rear Flange, Male Clevis, Female Clevis (+ King Pin), Center Trunnion, Front & Rear Trunnion
Accessories
Clevis Foot Bracket, Wall Mounting Bracket, Trunnion Bracket, Rod End Fork, Rod End Aligner, Rod End Spherical Eye
Standard naming: CS4 codes follow ISO 15552 / VDMA 24562; CN4 codes follow ISO 6431 / CETOP RP43P, RP53P. Bores 32–100mm are available in both standards — 125–250mm bores follow CS4 (ISO 15552) only.
Bore Selection

Cushion Stroke by Bore Size

Adjustable elastomer cushioning at both ends, sized to bore diameter, to soften end-of-stroke impact at speed.

Bore Ø (mm)Cushion Stroke (mm)ISO 15552 (CS4)ISO 6431 (CN4)
3221CS4-032···V2CN4-032···V2
4023CS4-040···V2CN4-040···V2
5023CS4-050···V2CN4-050···V2
6323CS4-063···V2CN4-063···V2
8028CS4-080···V2CN4-080···V2
10028CS4-100···V2CN4-100···V2
12540CS4-125···V2— (CS4 only)
16040CS4-160···V2— (CS4 only)
20040CS4-200···V2— (CS4 only)
25050CS4-250···V2— (CS4 only)

Model code format: [Series]-[Bore][Stroke]V2  ·  e.g. CS4-063100V2 = 63mm bore, 100mm stroke. Add "M" prefix after series for magnetic piston (e.g. CS4-M063100V2).

Why CS4 / CN4

Full-Range, Standards Compliant

  • ISO 15552 & ISO 6431 compliant — direct OEM cross-reference
  • Adjustable cushioning at both ends with elastomer pads
  • Magnetic piston option for position-sensing switches
  • Optional high-temperature Viton seals to 150°C
  • Optional SS304 non-corrosive piston rod & lock nut
  • Custom stroke lengths available on request
  • Seal kits stocked for every bore size
Mounting Styles

Choose Your Fit

Foot MountingFront FlangeRear FlangeMale Clevis Female ClevisFemale Clevis (King Pin)Center TrunnionFront TrunnionRear Trunnion

Every mounting style is available across the full CS4/CN4 bore range, with matching brackets and rod-end accessories for direct machine integration.

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Sizing a cylinder for your application?

Send us your bore, stroke, mounting style and load requirement — we'll confirm the exact CS4/CN4 model code.