& nbsp; The J458A 800Kg low-pressure casting machine is a universal equipment for aluminum alloy low-pressure casting. It is a new generation low-pressure casting machine developed and designed by our company on the basis of absorbing advanced foreign technology and combining our years of experience in low-pressure casting. It is very suitable for the production of castings such as car wheels and cylinder blocks. Performance characteristicsThe clamping mechanism is guided by four pillars and adopts a fast and slow clamping method to improve work efficiency and reduce impact on the mold. By using hydraulic speed increasing technology, achieve high-speed molding and effectively improve productivity;● Dual pressure variable oil pump with automatic variable flow can be used to switch high/low pressure to better adapt to working pressure and flow requirements;An independent ejection mechanism installed on the moving template can eject the casting at any position; A hydraulic driven safety limit device is installed on the upper part of the closed cylinder seat, which can prevent the sliding of the moving template within the travel range of the moving template; Four static mold core pulling mechanisms are installed on the static template and driven by four oil cylinders to achieve vertical parting or core pulling on the four sides of the mold; The workpiece is picked up using a hydraulic motor driven swing arm rotating floating tray, which can accurately determine the casting falling. The height of the pickup can be manually adjusted;Eight water air mixed cooling channels with multiple cooling control methods; Adopting a molten pool type insulation furnace. The furnace body can be lifted and horizontally moved, and the lifting mechanism has a mechanical self-locking function. Extremely conducive to replacement of the lifting pipe and maintenance of the insulation furnace;The liquid level pressurization is controlled by a proportional valve, with high pressure control accuracy and good repeatability, ensuring the stability and consistency of the pouring process and effectively improving the yield of castings. technical parameter Serial numberParameter NameParameter valueCompanyoneHolding Furnace Capacity (AL)eight hundredKgtwoMobile board size1200X1200X120mmthreeFixed plate size2400X1720X140mmfourSpacing between large columns1827X1057mmfiveOpening forceone hundred and sixty-twoKNsixCombining forcetwo hundredKNsevenMoving board strokeone thousand and three hundredmmeightMinimum mold thicknessfive hundred and fiftymmnineMaximum opening gearone thousand eight hundred and fiftymmtenHydraulic system working pressure10/13MPaelevenEjection forcetwo hundredKNtwelveEjection strokefiftymmthirteenEdge cylinder mold opening forceseventy-eightKNfourteenSide cylinder stroketwo hundredmmfifteenCenter height of side cylindertwo hundred and twentymmsixteenMaximum speed of mergingtwo hundredmm/sseventeenTray sizeseven hundred and fiftymmeighteenMaximum lifting stroke of insulation furnacetwo hundredmmnineteenOil pump motor powereighteen point fiveKw
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