Hydraulic units to control the pre-stressing jacks, consisting of:
High-pressure hydraulic piston pump with high flowrate, maximum working pressure 350 bar (test pressure 400 bar), controlled by electric three-phase motor of different power, voltage and frequency according to customer requirements.
Hydraulic circuit controlled by a solenoid valve.
Double control of stressing pressure by means of a pressure relief valve and an electric pressure switch that stops the unit to the working pressure requested.
Work pressure gauge and control pressure gauge.
Gauge pressure switch on return circuit.
Electrical panel, acoustic alarm and flashing light during working phase.
Four wheels, of which two swivel.
Oil tank complete with level and temperature indicator.
Equipment completed by Strand Prestressing Jacks, available in 4 different sizes, according the different strand size to be tensioned.
Single-acting detensioning jacks with different pushing forces (from 35 to 1000 ton), different strokes (standard is 200mm), chrome-plated stem and liner, complete with anti-leakage safety collar, lifting hook and 3/8’’ connector to hydraulic circuit.
Hydraulic units to control the detensioning cylinders of a prestressed elements prefabricated manufacturing line.
Hydraulic piston pump with high flowrate that works at a max pressure of 350 bar, ruled by a 3phase electric motor. Hydraulic circuit managed by 1 manual distributor for every cylinder, completed with a regulation valve for the oil flowrate.
Electrical panel, acoustic alarm and flashing light during working phase.
Four wheels, of which two swivel.
Oil tank complete with level and temperature indicator.
These machines help and automate the strand laying along the production lines. Our equipment for the pushing of the strands on the prestressing lines can be used interchangeably for 3/8”, ½” or 6/10” strands. Options available:
In order to neutralize the effect of strands where reduced compression stress is required, the best solution is the use of soft sheating. Easy to apply, please find below the list of different types:
Al Bianchi Anchoring Clamps are re-usable and made from high quality steel and processed through severe heat treatment,which ensure many reuses and long life. Please refer to our Prestressing Catalogue in order to check the different sizes of the clamps, Clamps types are listed below.
Re-usable open-type barrels and wedges are the most commonly used for the prestressing of strands/wires as they are practical/cheap, easy to inspect and service.
The automatic clamps are easy to apply to the strand thanks to their closed design which helps protecting and keeping the various parts in their working positions
To reduce strands waste, the ideal solution is the coupler. It consists of 2 automatic clamps, whose diameter may vary, connected by a nipple.