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★ The machine body of J84 series knuckle press adopts the integral structure. The operating mechanism is the crank toggle mechanism, and teh press can remain and pressurize for 1/18 cycle at the dead point.
★ The indicating value of the power-driven sealed height regulating device is 0.01mm; the hydraulic or the mechanical lower ejector device is adopted.
★ The J84-250,400 and J84-630 adopt the wet-type integrated friction clutch/brake; the series above J84-800 and GK series adopt the dry type split friction clutch/brake.
★ The whole machine adopts the PLC control, and it has the good precision, beautiful appearance ,and is suit for various pressure-sizing and extrusion processes.