Characteristics:

• Maximum Working Pressure: 200 bar
• Maximum Testing Pressure: 300 bar
• Maximum Working Speed: 0.5 m/s
• Working Temperature Range: -30ºC to +90ºC
• Hydraulic Fluid: Mineral oil

Material Specifications:

• Rod:

  • Material: Chrome plated steel F-1140
  • Minimum Chrome Layer Thickness: 20 microns
  • Surface Roughness: Ra < 0.2 microns
  • Minimum Surface Hardness: 900 HV
  • Corrosion Resistance: Minimum 200 hours in neutral saline fog (ISO 9227 rating 9)

• Tube:

  • Material: Steel ST-52-3, DIN 2393
  • Inside Diameter Tolerance: ISO H9
  • Surface Roughness: Ra < 0.8 microns
• Guide-Bushing: Steel F-1140 nitrited (nitride hardening)
• Piston: Steel F-1140

Seals:

• Guide-Bushing Seals:

  • Dynamic: Compact polyurethane rod-seal, double lip; NBR metal wiper seal
  • Static: NBR 90 shore O-ring

• Piston Seals:

  • 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:

• Paint: Black prime painting

Recommendations:

• Relief Valve: Protect the cylinder circuit with a relief valve set at 200 bar
• Oil Cleanliness: Ensure oil cleanliness and prevent contamination; use a filter on the cylinder circuit
• Circuit Bleeding: Bleed the circuit by slightly loosening the cylinder fittings before start-up
• Welding:
  • Do not weld on the cylinder tube
  • Before welding on the rod or bottom, dismount the cylinder
• Storage:
  • Avoid outdoor storage; if unavoidable, retract the rod completely or grease it
• High-Pressure Cleaning: Protect the rod and oil ports during cleaning or blasting
• Double-Acting as Single Acting: Connect the non-used oil port to the tank
• Cylinder Dismounting:
  • The piston is screwed onto the rod end and fixed with industrial glue; use industrial glue when reassembling