HYDRAULICS FOR MINING
For over 50 years, the OSTROJ company has been the primary Czech manufacturer of hydraulic cylinders, peripheral hydraulics and control hydraulics particularly used for roof supports. The OSTROJ company also supplies hydraulic components to other roof support manufacturers not only for internal use.
Power hydraulics (hydraulic cylinders)
• Single-acting cylinders
• Double-acting cylinders
• Telescopic cylinders
• Absorption cylinders
• Bolted cylinders
• Pistons
Peripheral hydraulics
• One-sided hydraulic locks
• Double-sided hydraulic locks
• Yield valves
• Impact valve VR 2800
• Impact valve VR 7100
• Ball cocks
• Pressure filters
• Filtration plant SF 125
• Filtration plant SF 250
Individual hydraulic props - Pit props
• SH type props
• SH32 type props
• SHP type props
• SHP32 type props
• Operational results
• References
Control hydraulics (supplied by OSTROJ or contracted companies)
• Manual (hydraulic pulse) control system
• Electro-hydraulic control system
• Full-flow hydraulic control system