A wet blast machine for cleaning or preparing surfaces comprises: a treatment source for providing a pressurised mixture of treatment material; a nozzle, the nozzle comprising: an inlet for receiving the pressurised mixture of treatment material; an outlet for ejecting the pressurised mixture; and at least one hole in a wall of the nozzle, the hole for feeding one or more products into the nozzle such that one or more surfaces of the product are exposed to the treatment material whilst within the nozzle, allowing for a more efficient wet blast of the products.

Methodology for reclaiming metal from insulated and/or shielded and/or jacketed power cables present on supporting conveyor belts, by waterjetting using stationary and/or spinning nozzles.

Methodology for reclaiming metal from insulated and/or shielded and/or jacketed power cables present on supporting conveyor belt and/or troughs, by waterjetting using stationary and/or spinning nozzles.

A wet blast machine for cleaning or preparing surfaces comprises: a treatment source for providing a pressurised mixture of treatment material; a nozzle, the nozzle comprising: an inlet for receiving the pressurised mixture of treatment material; an outlet for ejecting the pressurised mixture; and at least one hole in a wall of the nozzle, the hole for feeding one or more products into the nozzle such that one or more surfaces of the product are exposed to the treatment material whilst within the nozzle, allowing for a more efficient wet blast of the products.

The steel wire surface treatment method of the present invention is a method for continuously treating the surface of a steel wire and includes: a descaling step P2 in which scale adhering to the surface of a steel wire is removed by subjecting the surface of the steel wire to wet blasting; a coating film treatment step P5 in which a coating film is formed on the surface of the steel wire after completion of the descaling step P2; and a water amount controlling step P3 in which the water amount on the surface of the steel wire immediately before performing the coating film treatment step P5 is adjusted to a prescribed water amount.