Pneumatic and hydraulic cylinders
Cheltec has been designing and manufacturing customized hydraulic and pneumatic cylinders for over 10 years.
Cheltec manufactures cylinders with piston diameter up to 800 mm and stroke up to 8,000 mm.
In 2006 Cheltec has commissioned a new shop on cylinders production and repair. It integrates equipment necessary to perform technological cycle from manufacture of workpieces to tests of ready cylinders.
All pistons are bronze surfaced, which reduces tearing of internal barrel surface and extends cylinder service life.
Internal barrel surface is then honed, thus reducing cylindricity deviation to 5 micron and surface roughness to Ra=0.63÷0.16.
Cylinder rods are also chrome coated. Such chrome coating 20…40 micron thick, is highly resistant to wear, heat and low friction factor, protects the rod from dust and other exposure to ambient conditions. Coating hardness is up to 60 HRC.
The cylinders are sealed with high-quality ECONOMOS seals and guide rings from polymer and composite materials, which provide for high leakproofness even in agressive environments.
All assembled cylinders are tested at the stand for compliance to GOST 18464-96, i.e. reliability, idle run, external leakproofness of permanent joints, internal leaks at piston's extreme positions, standby pressure, smoothness and braking time.
Great experience in production of small series of special or exclusive hydraulic cylinders allows to promptly develop and manufacture hydraulic cylinders of different function and design, that is plunger and piston, double-piston, with or without brake assembly, with rod movement control sensors, with different variants of connecting elements, including non-standard, etc., and to guarantee their high quality and long service life.
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