Pre-stressing Unit For Railway Slippers

Pre-Stressing Unit For Railway Slippers are designed for pre-stressing of steel wires while manufacture of railway slippers.
It is operated on 3 phase supply without need for neutral wire. The electric motor driven radial piston pump provides oil flow at high pressure for required stressing force. There are two guns and can be operated simultaneously or individually by simple pressing of push buttons on each gun.
When pre-set stressing force is achieved, pilot lamp glows and solenoid valve is stopped automatically. The gun will remain in stressed position until retracted by second push button.
The stressing pressure can be set on pressure control valves provided on operator console. The stressing can be read in terms of bar and kN on separated gauges. The values of stressing force is also indicated on digital meter.
The whole unit is mounted on wheels and castors for easy movement.
Major Specifications:

1. Maximum Pre-Stressing Force:: 27 kN
2. Maximum Oil Pressure: 219 Bar
3. Maximum Stressing Speed : 82 mm/sec
4. Maximum stroke of Gun : 440 mm
5. No. of Guns : 2 Nos.
6. Oil tank capacity : 120 Ltr.
7. Electric Motor Rating : 5.5 KW, 3-Phase, AC 415 Volts
8. Size of wire to be stressed: 3-strand, each dia.3 mm, over all dia. App. 6 mm