A horizontal baler fixes that. The machine is a steel box with a hydraulic ram at one end. Material is loaded into the open chamber, the door is closed, the ram compresses the charge against the end plate, and the operator ties the block with wire before the ram retracts. The block is dense enough to stack, to handle with a forklift and to load without shifting in transit.
Three parts do the work. The pressing chamber is the long welded box, with the square openings along its side that let the operator see and clear a jam. The main cylinder sits at the front, a heavy chromed ram on a trunnion. The power pack sits on one side: an electric motor, a pump, an oil tank and the valve block, with the hoses running back to the cylinder. Nothing on the machine is complicated, which is why these units survive for a decade in a yard with no more than hose changes.
Density is set by how long you hold the pressure, not by the tonnage on the plate. A charge pressed and released immediately springs back as soon as the door opens. Holding for a few seconds longer lets the material settle against the walls, and the bale keeps its shape during the tie. Wet material holds a bale better than bone-dry shavings, which relax as soon as the strap tension is released.
Tie it before you open the door. The number of wires or straps across a bale decides whether it survives the forklift. Two straps hold a bale of wood chips; four are needed for straw or for a bale that has to be stacked two high in a container. A bale that bursts at the port costs more in claims than the baler costs to buy.
Where the bales go decides the format. Export shavings are usually baled to a size that stacks two across a container. Wood wool for packaging is baled softer so the strand is not crushed. Straw and hay are baled tight and stacked in a shed. Animal bedding, pulp and waste paper all press the same way.
Zhengzhou Weiwei Machinery has built feed and wood machinery in Henan since 1980, with CE and ISO 9001 certification. Tell us the material, the moisture and the bale size your container needs, and we will confirm the chamber and the cylinder for it.
