References
Features
– Max working pressure: 220 bars
(Warning : rod buckling, please see tables)
– Proof pressure: 330 bars
– Maximum speed: 0.5m/s
– Temperature: – 30°C to + 90°C
– Hydraulic mineral oil
• Materials
– Rod: CK45 chrome plated f7 Ra<0.2
– Chrome thickness 20μ mini
– Corrosion test: 209 hours NSS ISO9227
class9 (ISO4540) Hardness 900 HV
– Cold-drawn tube H9, Ra < 0,8 μ / skived and
roller burnished H9, Ra < 0,3 μ
– Gland: nitride hardening steel (38MF5)
– Piston: Steel C35R
• Seals
– Rod: compact polyurethane lip seal + 1 wiper
seal
– Piston: compact polyurethane seal + nitrile
(400 bar)
• Marking
– On the tube: REFERENCE + CH + WEEK/
YEAR of manufacture
• Testing: by “pick up”
• Protection
– Priming paint black RAL9005 except on type
707.5 and 707.10, wood splitter cylinder and
double acting cylinder crutch
– Zinc plating on micro cylinders
Recommendations
Protection of the circuit by a relief valve and a filter
– Check the oil cleanness (pollution)
– To bleed the air from the cylinder and the
hydraulic circuit
The cylinder should not, under any circumstances,
be used as a mechanical limit stop for
moving loads.
For double-acting cylinders working as singleacting,
it is essential to connect the unused port
to the tank or safe environment
• Welding: do not weld on the tube. Dismount
the cylinder to weld on the rod or on the base
• Storing: storage of extended cylinder, the rod
must be greased. For high pressure cleaning,
protect the rod.
• Dismantling the cylinder : Warning : we use
loctite engineering adhesive and a special locking
ring to fasten the piston to the rod. Once
the piston has been removed it will require
a new locking ring and re-application of the
appropriate loctite.
Additional information
Spare parts
• Seal kits see price list
• Technical notice on request
• Warranty: see our standard terms of sale