2Million m2 Plasterboard Production Machine

Water is delivered to the plaster of Paris combination to form a slurry of the terrific consistency. An asphalt emulsion and/or a wax emulsion is added to collect the preferred diploma of moisture resistance in the closing product. A foaming agent such as a detergent is included, and in the route of the mixing approach air is entrained into the material. The carried out gypsum panel will be over 50% air; this minimizes the board's weight and makes it much less hard to cut, fit, and nail or screw to the framing. Glass fibers are delivered to the moist core cloth when making firerated gypsum board.

Making the sandwich
The gypsum slurry is poured onto a layer of paper that is unrolling onto a prolonged board machine. Another layer of paper unrolls on pinnacle of the slurry. The sandwich then passes by using a machine of rollers that compact the gypsum core to the excellent thickness. The most usual thicknesses are 0.37 inch (9.5 mm), 0.5 inch (12.7 mm), and 0.62 inch (15.7 mm).
Finishing the edges
Automated assembly traces in gypsum board plant life differ from 300-800 toes (93-247 m) long. As the drywall continues alongside the conveyor belt, the edges are formed. Various shapes of edges are possible, relying on the closing use of the panel. Options embody the frequent rectangular edge, a tongue and groove type, tapered and/or beveled edges, and even rounded edges.