Characteristics:

1. Maximum Working Pressure: 200 bar
   • The highest pressure at which the cylinder can operate continuously.
2. Maximum Testing Pressure: 300 bar
   • The pressure at which the cylinder is tested to ensure its integrity and safety.
3. Maximum Working Speed: 0.5 m/s
   • The fastest speed at which the piston can move within the cylinder.
4. Working Temperature Range: -30 ºC to +90 ºC
   • The range of temperatures within which the cylinder can operate effectively.
5. Oil Type: Mineral hydraulic oil
   • The recommended type of hydraulic fluid for use in the cylinder.

Material:

1. Rod:

   • Material: Chrome plated steel F-1140
   • Chrome Layer Thickness: Minimum 20 micron
   • Roughness: Ra < 0.2
   • Surface Hardness: Minimum 900 HV
   • Corrosion Resistance: Minimum 200 hours in neutral saline fog (ISO9227, rating 9)

2. Tube:

   • Material: Steel ST-52-3 (DIN 2393)
   • Inside Diameter Tolerance: ISO H9
   • Roughness: Ra < 0.8 micron

3. Guide-Bushing:

   • Material: Steel F-1140, nitrited

4. Piston:

   • Material: Steel F-1140

Seals:

1. Guide-Bushing:

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

2. Piston:

   • Dynamic: Compact double-acting polyurethane seal, plus nitrile O-ring as activator, special polyacetal guides reinforced with glass fibre
   • Static: Polyamide locking sealing guide

Finishing:

• Coating: Black prime painting

Recommendations:

1. Circuit Protection:
   • Use a relief valve set at 200 bar to protect the hydraulic cylinder circuit.
2. Oil Cleanliness:
   • Ensure the hydraulic oil is clean and free from contaminants by using a filter on the cylinder circuit.
3. Bleeding the Circuit:
   • Loosen the cylinder fittings slightly before startup to bleed the circuit.
4. Welding Precautions:
   • Do not weld on the hydraulic cylinder tube. If welding on the rod or bottom is necessary, dismount the cylinder first.
5. Storage:
   • Avoid outdoor storage. If unavoidable, keep the rod retracted or greased.
6. High-Pressure Cleaning:
   • Protect the rod and oil ports during high-pressure cleaning or blasting.
7. Single Acting Operation:
   • For double-acting cylinders used as single-acting, connect the unused oil port to the tank.
8. Cylinder Dismounting:
   • Note that the piston is screwed onto the rod end and fixed with industrial glue. Use industrial glue again when remounting.