Inside honed and/or outside ground - hard chrome plated tubes
starting from SS, SSTF, DOM, TuffDOM tubes

Applications: Realization of bodies and pistons for hydraulic cylinders, telescopic cylinders.

Standard steels:
E255 (St 52), 20MnV6, TuffDom520-620 - (other steels on request).

Tests and certification: Certification according to international standards for raw material and internal certification for finishing.

On request: Cutting to fix length and/or machining according to customer's specification.

LEV - inside honed tubes

Tolerances: ISO H8/H9
ID roughness: Ra 0,20  µm max on I.D.
Straightness: 1 mm on 1.000 mm
Out of roundness: included in the diameter tolerance
Size range: from ID 40 mm
Length: up to 8 meters
Packaging: end capped

STEL - outside ground/hard chrome plated  tubes

Tolerances: ISO f7 (others on request)
Chrome thickness: 25 µm min.
Chrome hardness: HV 850 -1150
OD surface roughness: Ra 0,40  µm max on O.D.
Straightness: 1 mm on 1.000 mm
Out of roundness: included in the diameter tolerance
Standard sizes: from OD 30 mm
Length: up to 12 meters
Packaging: plastic wrapping

TELE - inside honed and outside ground/hard chrome plated tubes

Tolerances: ISO H8/H9 - ISO f7 (others on request)
Roughness: Ra 0,20  µm max on I.D. - Ra 0,40  µm nax on O.D.
Chrome thickness: 25 µm min. on OD
Straightness: 1 mm on 1.000 mm
Out of roundness: included in the diameter tolerance
Size range: honing from ID 40 mm
 grinding/chrome plating from OD 30 mm
Length: up to 12 meters
Packaging: plastic wrapping plus end caps