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新闻中心
News center
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Injection screw rotating but not be able retreat to plasticize the material
(1).Back pressure valve is broken, or adjusted too high. (2).Cooling ring at the end of the screw cylinder is clogged, or the cooling water is in short supply. Plastic material is melted near the entr
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Pump running but not delivering working pressure
(1).Check the oil pump for direction. If the direction is OK but no working pressure is delivered, stop it immediately. Please note: if the internal parts of the oil pump are not replaced at their ori
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Injection action failure
(1).The limit switch is not pressed at end of the injector holder advance travel（during semi-auto or full automatic operation mode）. (2).Check if the directional valve is blocked by foreign matters, a
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Injection screw is out of order resulting in unstable injection
(1).The reason is that the injection assembly, in particular the return checking ring is broken, unable to prevent the melting plastics from flowing backward during the injection, leading to the rotat
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Leaking during pre-plasticizing
(1).Check if the back pressure is too high. (2).Check if the directional valve is damaged.
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Losing high pressure mold closing force
(1). Adjust the thickness of the mold. (2).Adjust the position for low pressure turning to high pressure. If something is damaged, replace it in time. (3).Make sure the temperature of the oil should b
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Pre-plasticizing action failure
(1).Check if the temperature of the screw cylinder is sufficient and if the heaters are in good condition. (2).Check if the hydraulic motor breaks down. (3).Check if the directional valve is blocked b
