High Performance Double-acting Hydraulic Cylinder GHP320
Nominal working pressure: 250 bar (25 MPa)
Maximum working pressure: 320 bar (32 MPa)
Liner: E355 SR EN 10305 -1 steel liner, polished inside Ra<0.4 tolerance H8
End plug: S355JR – ASTM A105 steel
Rod: Alloy steel 42CrMo4 +QT chromed Ra<0.2 tolerance f7 corrosion resistance 200h NSS ISO 9227 (Neutral salt spray fog test) rating > 9 ISO 10289. Rods with corrosion resistance on request 500h, 1000h
Pilot boss: Steel C45.
Piston: Steel C45
Sealing system: Double rod seal, main one in PTFE + Bronze and secondary one in polyurethane. Piston seal in PTFE + Bronze with energizing ring in NBR90 and anti-extrusion rings in PTFE. Rod and piston seals in phenolic resin. O-rings in NBR70, Anti-extrusion rings in polyester.
Hydraulic testing: Each cylinder undergoes hydraulic testing at 350 bars (35 MPa) of pressure.
Terms and conditions: Cylinders are supplied unassembled with feed ports closed with threaded, sealed plugs. Special coatings can be applied on customer request.
Suggested fluid: hydraulic mineral oil, minimum filtration fineness 19/15 a, ISO 4406.
Operating temperature: from -20°C to 80°C. It is recommended to maintain fluid temperatures of 40÷50°C while in operation in order to maximize seal life.
Radial load: prohibited; during use never subject the rod to radial loads.
Welding: Welding on the cylinder’s external diameter should be absolutely avoided.
Coating: when applying a coating to the cylinder with oven drying the temperature should never exceed 80°C. If coating is applied with the rod removed, ensure that the rod is well-protected; before reinsertion remove any coating residue on the rod in order to avoid damaging the wiper and rod seal.