Date:2015-12-07 14:52:50
With BMC material special performance, for BMC moldings, it needs specialBMC injection molding machines. Compared with standard plastic injection molding machines, BMC molding machines has below obvious points:
-BMC injection molding machine designed with material auto-feeding system.
Known to all that most BMC material is with fiber or glass shape, not like other thermoplastics, BMC material cannot feed to machine barrel by plastic material gravity. Due to this reason, whatever BMC injection molding machine adopt with plunger type or screw type, BMC injection molding machine need have a material auto-feeding system on BMC injection machine barrel. Usually this auto feeding system is driven by one hydraulic cylinder.
-BMC injection molding machine designed with special screw, screw head and barrel.
With BMC material performance, BMC injection molding machine, especially the injection unit must satisfy with high requirements to bear high temperature, high pressure and wearing, so usually for this unit, like BMC injection molding machine barrel, BMC molding machine screw and screw head, we use bi-metal steel.
BMC injection molding machine with screw type, it has advantages for short cycle time, and good for air venting. BMC injection machine screw L/D ratio is relatively small; usually it is 14-16, the screw diameter usually 20-30% larger than other injection molding machines for other thermoplastics.
Please feel free to contact with me with BMC molding machines.
Ms Diana
Mail: dkm@dakumar.com
Skype: sino.group01
