Characteristics:

• Maximum Working Pressure: 200 bar
• Maximum Testing Pressure: 300 bar
• Maximum Working Speed: 0.5 m/s
• Working Temperature: -30ºC to +90ºC
• Oil: Mineral hydraulic

Material:

• Rod: Chrome plated steel F-1140
  • Minimum chrome layer thickness: 20 micron
  • Roughness: Ra < 0.2
  • Minimum surface hardness: 900 HV
  • Corrosion resistance: Minimum 200 hours in neutral saline fog according to ISO9227 rating 9
• Tube: Steel ST-52-3, DIN 2393
  • Inside diameter tolerance: ISO H9
  • Roughness: Ra < 0.8 micron
• Guide-Bushing: Steel F-1140 nitrited (nitride hardening)
• Piston: Steel F-1140

Seals:

• Guide-Bushing:
  • Dynamic: Compact polyurethane rod-seal, double lip. NBR metal wiper seal
  • Static: NBR 90 shore O-ring
• Piston:
  • Dynamic: Compact double-acting polyurethane seal, plus nitrile O-ring as activator. Special polyacetal guides reinforced with glass fiber
  • Static: Polyamide locking sealing guide

Finishing:

• Painting: Black prime painting

Recommendations:

1. Circuit Protection: Use a relief valve set at 200 bar to protect the cylinder circuit.
2. Oil Cleanliness: Ensure the oil is clean and free from contaminants by using a filter on the cylinder circuit.
3. Bleeding the Circuit: Slightly loosen the cylinder fittings before start-up to bleed the circuit.
4. Welding Precautions:
   • Do not weld on the cylinder tube.
   • Dismount the cylinder before welding on the rod or bottom.
5. Storage:
   • Avoid outdoor storage for long periods.
   • If outdoor storage is unavoidable, ensure the rod is completely retracted or greased.
6. Cleaning:
   • Protect the rod and oil-ports during high-pressure cleaning or blasting.
7. Double-Acting Cylinders: If used as single acting, connect the non-used oil-port to the tank.
8. Dismounting:
   • The piston is screwed onto the rod end and fixed with industrial glue.
   • Use industrial glue when reassembling the cylinder.

These guidelines ensure the optimal performance and longevity of the hydraulic displacement cylinder.