About the company
Hydraulic Elements and Systems (HES) is a leading producer of plunger, piston and telescopic hydraulic cylinders in Eastern Europe.
The company is certified according to the quality standard ISO 9001:2008, guaranteeing the quality of its production.
Hydraulic Elements and Systems is a public company (BSE code: 4HE) traded on the Bulgarian Stock Exchange.
According to the Bulgarian Chamber of Commerce and Industry HES is rated among the first 100 companies by revenue in Bulgaria.
The main shareholders of the company are:
- Stara Planina Hold 64.53%
- Allianz Bulgaria Pension Funds 11.82%
- Slavyana 8.28%
- Free float 20.20%
PISTON CYLINDERSsingle-acting and double-acting (with or without damping at the end of the stroke) with diameter of the piston rod from 30 mm to 300 mm and maximum stroke length of 2500 mm.
PLUNGER CYLINDERSwith diameter of the plunger from 20 mm to 250 mm and maximum stroke length of 3000 mm.
TELESCOPIC CYLINDERSsingle-acting up to 8 levels with maximum stroke length of 8000 mm; double-acting up to 3 levels with maximum stroke length of 4500 mm.
RACK CYLINDERSwith diameter of the piston up to 100 mm and maximum stroke length of 500 mm.
The quality of the seals ensures the dependability of the products and maximum working pressure of 32 MPa. The plungers and the piston rods are hard chromium-plated with standard layer depth from 0.025 mm to 0.035 mm and hardness of 800-1100 HV. On customer demand, rods may be produced with a thicker chromium layer, made of stainless steel and heat-treated.
The products of HES are used in the production of:
- Material handling equipment (cranes, fork-lifts, dumpers);
- Agricultural machines (harvesters, tractors);
- Construction machines (excavators, bulldozers, front shovels, concrete mixers, lifting platforms);
- Machines for forestry industry;
- Communal transport machines, etc.