Technical Parameter HMK 680 Specification Screw A Screw B Screw C Injection Unit Screw Diameter mm 32 35 38 Screw L/D Ratio L/D 21.3 19.5 18 ShotVolume(theoretical)cm3 100 120 142 Injection Pressure Mpa 230 192 162 Screw Speed rpm 0 ?200 Clamping Unit Clamp Force: 680 Toggle Stroke: 285 Space Between Tie Bars ( W * H): 305 * 305 Max Mould Height: 330 Min Mould Height: 100 Ejector Stroke: 60 Ejector Tonnage: 27 Ejector Numbers: 5 Others Max Pump Pressure: 16 Pump Motor Power: 9 ( 11 ) Heater Power: 62 Machine Dimension ( L * W * H ): 3.6 * 1.03 * 1.7 Machine Weight: 2.9 Hopper Capacity: 25 Oil Tank Capacity: 180 Standard equipment: 1) Double cylinder balancing injections 2) High-torque oil-motor preplasticizing 3) Five pivots minus relief angle, double toggles, machine hinge mold locking 4) Cabinet-type holder integrates the mold plate 5) Oil motor driven gear mold adjusting 6) Storage-type grease lubricating 7) Pressure and flow whole-proportion running 8) High-performance, low-noise oil pump 9) Multi-step pressure and speed adjusting 10) High-precision position linear transducer 11) Digital memory for mold group Injection unit: 1) Four injection pressures and speeds with three additional pressures and speeds 2) Suck back function 3) Cold start protection 4) Pre-suck back function 5) Linear displacement transducer accurately monitor injection position, providing optimum. Injection accuracy and control 6) Temperature control 7) Heating Status indication Clamping unit: 1) Three clamp close and open pressures and speeds 2) Mold protection function 3) Hydraulic ejector stroke controlled by transducer 4) Automatic hydraulic die-height adjustment driven by planetary gears system 5) Adjustable support under moving platen 6) Automatic high pressure toggle lubrication with low oil level alarm 7) Mechanical, electrical and hydraulic safety interlock devices 8) Linear displacement transducer controls clamping position Other parts: 1) Independent core in / out pressure and speed 2) Hydraulic unscrewing sequence 3) Hydraulic oil high temperature alarm 4) System pressure gauge 5) Shot counter and reset function 6) Malfunction alarm light 7) Self-diagnostic function 8) Emergency stop buttons placed both front and rear of the machine to provide easy access