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Large Size Electric Servo Drive Injection Molding Machine
J720ELIII

Specifications

Item Model
J720ELIII
2300H 3100H 3900H
Injection Unit Screw code A B A B A B
Screw diameter in
3.31 3.62 3.62 3.94 3.94 4.33
Screw stroke in
16.536 18.110 19.685
Injection capacity (Theoretical) in3
142.1 170.4 186.6 220.5 239.7 290.0
Injection capacity [GP-PS] oz
74.7 89.6 98.2 116.0 126.1 152.5
Injection pressure (Max.) psi
27500 22900 26800 22600 26800 22100
Holding pressure (Max.) psi
24800 20500 24200 20300 24200 20000
Injection speed in/sec
6.30 6.30 6.30
Injection rate in3/sec
54.1 64.9 64.9 76.7 76.7 92.8
Plasticizing rate (GP-PS) oz/sec
3.63 4.61 4.61 5.68 4.90 6.07
Screw speed rpm
165 165 140
Nozzle touch force US ton
6.6 6.6 6.6
Nozzle stroke from platen in
2.0 2.0 2.0
Type of nozzle  
Open nozzle Open nozzle Open nozzle
"PID" barrel temperature control  
Barrel 4,
nozzle 1		 Barrel 4,
nozzle 1		 Barrel 4,
nozzle 1
Barrel heater capacity kw
40.0 45.2 47.0
Clamping Unit
Mechanism  
Double toggle
Clamping force US ton
717
Maximum daylight opening in
78.742
Opening stroke [Max.] in
39.37
Mold height in
17.717~39.371
Distance between tie-bars [HXV] in
37.8 X 37.8
Platen size [HXV] in
55.1 X 55.5
Ejector type  
21 Points
Ejector force US ton
19.9
Ejector stroke in
7.874
Machine Dimensions and General
Machine weight US ton
46.3 47.4 49.6
Machine dimensions [LXWXH] ft
33.92 X 7.51 X 8.73 34.15 X 7.51 X 8.76 35.73 X 7.51 X 8.76

Remarks:

  1. Maximum injection pressure and maximum holding pressure may be restricted due to molding condition.
  2. The theoretical injection capacity is (cross sectional area of cylinder) X (stroking distance of screw.)
  3. The injection capacity is applicable for GP-PS and variable according to the grade of resin, molding conditions and mold.
  4. The Plasticizing rate is applicable for GP-PS.
  5. The total power draw is based on full load condition. Actual power draw should be less than half of above

Notes:

  • Actual figures of the specification will vary depending on final machine configuration. Please contact us if you require more specific data.
  • Performance specifications are based on theoretical data.
  • Molding Condition: Holding pressure is 80% and total cycle time is 100 second.
  • Due to continual improvements, specifications are subject to change without notice.
 
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