Low pressure electrical equipment selection guide for presses

China is the world’s leading producer of plastic machinery and its production ranks first in the world. In particular, Ningbo in Zhejiang and Dongguan in Guangdong have become important injection molding machine production bases in China and even in the world.

Injection molding is the use of plastic thermophysical properties, the material from the hopper into the barrel, the barrel heated by the heating ring, so that the material is melted, in the barrel is loaded under the action of an external motor driven screw rotation, the role of the material in the screw Under the screw groove, the material is transported and compacted forward. The material is gradually plasticized, melted and homogenized under the double action of external heating and screw shear. When the screw rotates, the friction and shear forces of the material in the screw groove Under the action, the molten material is pushed to the head of the screw. At the same time, the screw retreats under the reaction of the material, so that the screw head forms a storage space, completes the plasticization process, and then, the piston thrusts on the injection cylinder. Under the effect of high-speed and high-pressure, the molten material in the storage chamber is injected into the cavity of the mold through the nozzle. After the molten material in the cavity is pressed, cooled, solidified and set, the mold is under the action of the mold-closing mechanism. , Open the mold, and push out the shaped product from the mold through the ejector device.

Electric control cabinet products, choose: Honeywell GR/CRH/SR series relays, GK series terminals, PB22/PL22 series button indicators. â–  Relays: Large contact capacity, stable performance â–  Terminals: Metal parts and plastic parts made of high-quality materials, complete accessories â–  Button indicator: imported plastics, a wide range of use

Operational door limit position 4~6, crank stroke detection, limit protection products, selectable: HLS-A, ZLEC01D, GLAC01A1B limit switch â–  IP65/67 â–  UL, CE, CCC certification â–  Compact housing structure, head Adjustable â–  With cable sheath â–  Shock resistant 50g â–  Vibration resistant 10~55Hz, 1.5mm amplitude

Molding control, core pull-up and down limit, injection table advance limit products, optional: SL-A/SL-A1/SLP-A/SLP-A1 limit switch ■ IP64/IP67 ■ UL, CCC, CE certification ■ Asian standard installation size ■ Maximum impact resistance up to 30G ■ Non-conductive components withstand 2500VAC/1min ■ Operating temperature up to -30~80°C

Positioning thimble, sol control, clamping in place or mold opening, displacement control products, optional: JPA, JSM series proximity switches â–  Solid state, non-contact sensing â–  Two types of housings, rectangular and cylindrical â–  Wide frequency response â–  Cable or connector connection â–  Reverse polarity, short-circuit, surge and EMC (electromagnetic compatibility) protection â–  Conforming to EN 60947-5-2 CE (DC) standard