New coil descaling machine for high uptime and low maintenance
SeAH CSS, a leading manufacturer of special steels, has ordered a new type of coil descaling machine from Wheelabrator, replacing chemical descaling processes. Across the SeAH family of companies there are already thirteen Wheelabrator descaling machine (for wire and bar) in operation, which have been introduced since 2014 to gradually move from chemical to mechanical descaling.
The new coil descaling machine, type WCD, was developed for high uptime and low maintenance. Most other shot blast machines available for this application feature a mandrel - to hold the coil during blasting - that is commonly attached to the machine door along with the drives that rotate it.
With the new design from Wheelabrator, the mandrel is independent from the door and rotated by rollers that are moved by drives located outside the blast area.
This hugely reduces wear on key components.
The inside of the blast chamber is clad with Manganese plates throughout, not just in the immediate impact area, reducing wear and maintenance requirements. A labyrinth seal on the door prevents abrasive leakage, and abrasive is collected and recycled automatically.
The length of the mandrel can be adjusted to individual needs and the machine is available with several heavy-duty blast wheel options (6 or 8 U70 blast wheels, with 30, 37 or 45kW power). The machine for SeAH is a WCD-8-37/16-55-200, with 8 blast wheels of 37kW each, it is scheduled to be delivered at the end of 2020.