Dakumar Machinery, is professional injection machine maker in China, can offer traditional double color machine and L type double color machine.
There are two ways to make double color products, One is normal double color machine, with two side-by-side injectors. the center distance for the two injectors is fixed.the mold core will be rotated with machine rotating plate.
 
Another is L type Multi color injection machine, this is machine included one standard machine and one extra injector.this machine don't have rotating plate, the mold core will be rotated by mold itself.
but the machine PLC should have the double color injection program.
 
Here updated the machine information for L type double color machines:
 
Below informations for first color injection unit,mostly it is for heave parts.
Screw type:                                   A                 B                   C   
Screw Diameter:                         50               55                  60
Screw L/D Ratio                         22.2            20.1              18.5
Shot Volume(theoretical)                570             688               819
Injection Weight                         518             630                746
Injection Pressure :                    204             169                142
Injection Rate                           177.1           214.3            255 
Plasticizing Capacity                   26.5              33.1              40.5
Screw Speed                                              0-170
Clamping Tonnage                                       2680
Toggle Stroke                                              545
Servo motor(kw)                                          18kw
Tie Bar Distance                                       570x570
Max. Mold Height                                          570
Min. Mold Height                                           230
Ejector Stroke                                              130
Ejector Tonnage                                            62
Ejector Number                                             9
Max.Pump Pressure                                      16
Pump Motor Power                                        18
Heater Power                                                16
Machine Dimension                             5.71x1.45x2.2
Machine Weight                                             9
Oil Tank Capacity                                         500
 
Now update the another Injection Unit for light part:
Unit Model               SN-030K             
Screw Diameter;       22
Screw rate:               168
Injection volume:       36                       
Injection weight:         40 g                    
Injection pressure:     1735                     
Injection speed:          106                       
Injection rate:              40
Plasticizing capacity:   10
 
Compared with normal double color machine, the L type machine cost is lower, and  the mold size is more flexible, no need to enlarge the mold size as the machine size.  DAKUMAR injection machine is the innovative manufacturer, can supply L type double color injection machine.