We’re engaged in manufacturing a range of Screw Presses, which can be used to dewater and wash secondary as well as virgin fiber. Each oil pump 27 is linked by way of two parallel ducts 29 to a control block 30 which contains the control means and which in flip is connected once more by means of two parallel ducts 31 to the related upper and decrease axial piston motors 26. The numeral 32 designates a tank or tanks for the storage, cooling and filtering of oil, from which the oil is removed for replenishing the circuits and by which oil draining out of the circuits is collected.
A uniform stress is exerted on the pulp sheets, placed between the platens. Mechanical presses will not be appropriate for open die forging, where the size of stroke must be diversified between strokes. Current developments in mechanical presses are focusing on increased stiffness of the press structure to enhance forging accuracy, automation, and high speed (in terms of die-to-workpiece contact time).
5. The electrical screw press may be programmed to forge, and may work repeatedly in accordance with the inputing programm with multi-step. Slow dewatering may contain “sluggish preliminary drainage” on the forming desk, low solids after vacuum software, low solids after wet pressing, or just a consequent decrease working pace of the paper machine.
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