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J & W Official Announcemen..
 
12/08/11
JW520 Series
Plastic Injection Molding Machine - JW520 Series

FEATURES:
With the superposition of servo motor Precision characterisitics and internal gear pump Precision characterisitics, and through high sensitivity of pressure feedback device closed-loop, the comparison of injection repeatability can be 3%.Compared to conventional hydraulic machine, servo machine shows greater stability of injection, increasing the forming percent of pass a lot.

Due to the high response servo motor with internal gear pump power system, it is only 0.05S to reach the maximum injection output. Compared to conventional hydraulic injection molding machine, the respond speed become faster, effectly shorten the cycle time and improve the production rate.

 SPECIFICATIONS:     

JW520

JW650 JW780
     
A
B
C
A
B
C
D
A
B
C
D
Injection Unit                 
Screw diameter
mm
75
84
90
80
90
100
110
90
100
110
120
Screw L/D ratio
 
22.4
20
18.6
24.8
22
19.8
18
24.4
22
20
18.3
Shot Size (theoretical)
cm(3)
1930
2420
2780
2112
2673
3300
3993
2945
3636
4400
5236
Injection weight(ps)
g
1756
2200
2525
1920
2430
3003
3631
2680
3306
4003
4765
Injection pressure
Mpa
204
163
142
224
177
143
118
228
184
152
128
Ejector Stroke
mm
435
440
462
Screw speed
r/min
0~155
0~130
0~110
Clamping Unit
  
       
Clamp tonnage
KN
5200
6500
7800
Toggle stroke
mm
730
900
1020
Space between tie bars
mm
800 x 800
900 x 900
980 x 980
Max. Mold height
mm
850
900
1000
Min. Mold height
mm
350
400
400
Ejector stroke
mm
200
260
260
Ejector tonnage
KN
150
175
186
Ejector number
pc
13
17
21
Others
  
                
Max. pump pressure
MPa
16
16
16
Pump motor power
kw
45
30+30
37+37
Heater power
kw
25.9
46
58
Machine dimension(L x W x H)
m
8.1 x 2.0 x 3.0
9.9 x 2.5 x 3.8
11 x 2.6 x 3.8
Machine weight
t
22.5
36
46
Hopper capacity
L
-
-
-
Oil tank capacity
L
1050
1480
1770
SPECIFICATIONS:   

JW1080

JW1250
      
A
B
C
D
A
B
C
D
Injection Unit           
Screw diameter
mm
100
110
120
130
110
120
130
140
Screw L/D ratio
 
24.2
22
20.2
18.6
26.2
24
22.2
20.6
Shot Size (theoretical)
cm(3)
3818
4619
5500
6452
5545
6600
7745
8980
Injection weight(ps)
g
3475
4203
5005
5871
5045
6005
7045
8170
Injection pressure
Mpa
211
174
146
125
205
172
147
126
Ejector Stroke
mm
486
583
Screw speed
r/min
0~110
0~90
Clamping Unit
  
                          
Clamp tonnage
KN
10800
12500
Toggle stroke
mm
1200
1300
Space between tie bars
mm
1100 x 1100
1250 x 1250
Max. Mold height
mm
1200
1300
Min. Mold height
mm
550
550
Ejector stroke
mm
320
320
Ejector tonnage
KN
215
215
Ejector number
pc
21
21
Others
 
     
Max. pump pressure
MPa
16
16
Pump motor power
kw
45+45
55+55
Heater power
kw
68
85
Machine dimension(L x W x H)
m
12 x 2.8 x 4.0
13.7 x 3.1 x 4.1
Machine weight
t
56
66
Hopper capacity
L
-
-
Oil tank capacity
L
2300
2400
 

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