PUSHER PINS
MOLD OPENING PREVENTION PLATES/URETHANE SPRINGS –CUT–OUT L DIMENSION DESIGNATION TYPE–
Mold opening prevention plates
2 － C
3 － C1
PSP
C0.1 ‒ 0.3
DPPFN (Cut–out L dimension designation type)
（ R ）
R （＝ d/2 ）
φ D ＝ 6
R ≦ 4
L
7
3
± 0.1
ℓ
S
T
ℓ 1
C0.1 ‒ 0.3
L
M Material S45C
Part Number
1mm increments
Color
φ D ＝ 8–25
T d
C
Example
ℓ ℓ 1
Type
B
L
S Safety coloring
Set each when storing the mold and when moving it.
25 30 ≦ L ≦ 95 0 ≦ S ≦ L–18 R (Red) Y (Yellow) N (Normal) 38 50 ≦ L ≦ 115 0 ≦ S ≦ L–28 50 60 ≦ L ≦ 145 0 ≦ S ≦ L–44
12 9 10 15 10 12 14 15 20 15 20 22 25 30 15
DPPFN
L
3
± 0.1
M Material SK4 H Hardness 53–58HRC
A round hole when S = 0. E N (Normal) c s Black oxide processing (Fe 3 O 4 )
E Safety coloring is a spray paint. (acrylic lacquer) The color may fade when the mold temperature is high.
Part Number
L 1mm increments
D g6
H
Type
D
Even if removing it during the operation is forgotten, its cut–out section breaks first and keeps the plates and holders undamaged.
Part Number – L – S – Color DPPFN25 – 80 – S20 – Y
–0.004 –0.012 –0.005 –0.014 –0.006 –0.017 –0.007 –0.020
Order
6 8
8
6 8
10–50
10 13 16 19 23 28
10 13 16 20 25
10 13 16 20 25
Delivery Quotation
PSP
10–70
Forgot to remove
20–80
φ d φ D
± 0.2 1 ± 0.2
MAZ
Urethane Springs
Part Number – L PSP8 – 15
Order
E When the amount of compression (Fmm) is large, use with low head socket head cap screw etc. because in socket head cap screws, the bolt head and the fixed side mold may collide.
V
Quotation
Delivery
■ When using
Screw plug Washer type (Screw plug)
φ d
H Hardness Shore A98
2 ± 0.2
Mounting plate
■ Characteristic value Items Unit
F = L × 10% F = L × 15% F = L × 20%
Part Number Type D– L MAZ 15 – 15 20 25 MAZ 20 – 20 25 30 MAZ 25 – 25 30 35 40 MAZ 30 – 30 35 40
Mounting Bolt
Spring
D d 1
d 2
L
V
F mm 1.5 2.0 2.5 2.0 2.5 3.0 2.5 3.0 3.5 4.0 3.0 3.5 4.0
Load N {kgf}
F mm 2.2 3.0 3.7 3.0 3.7 4.5 3.7 4.5 5.2 6.0 4.5 5.2 6.0
Load N {kgf}
F mm 3.0 4.0 5.0 4.0 5.0 6.0 5.0 6.0 7.0 8.0 6.0 7.0 8.0
Load N {kgf}
Characteristic value
15 20 25 20 25 30 25 30 35 40 30 35 40
860 {88}
1085 {111}
1296 {133}
Hardness
Shore A
98
18
15 8
5 M4
②
②
Tensile Strength MPa
47.9
Runner stripper plate
Elongation
% 440
Pusher pin
3207 {327}
3854 {393}
4540 {463}
23.9 20
Heat–resistant Temperature Dissolution temperature
℃
100
①
①
11 7 M6
Fixed die plate
℃
200 E The above value is the reference value. It is not a guarantee value. E Although urethane itself has a heat resistant temperature of 100°C, when used continuously its durability falls, so use it at a temperature of no more than 80°C.
5894 {601}
7090 {723}
8306 {847}
29.9 25
When a three–plate mold is opened, space ① between the base plate and runner stripper plate opens first.. To make area ② open smoothly, the spring's free length should be adjusted so that the spring still compresses the pusher pin in the state shown in Fig. Ⅱ .
8306 {847}
9954 {1015}
11640 {1187}
Use as a set of spring and washer–faced screw plug (or a plain screw plug), for controlling the three–plate mold opening order. Spring ……………………………… D P.1148 – 1182
36
30 14 9 M8
● Load (kgf) = Load N × 0.101972
Part Number MAZ20–30
Washer–faced screw plug …………… D P.1107 Screw plug ………………………… D P.1107
Use for controlling the mold opening sequence of the three-plate mold.
Example
Order
■ Applicable Springs/Washer–faced Screw Plugs/(Plain) Screw Plugs Pusher Pins External diameter of springs Washer–faced screw plug Screw Plugs D H Coils Wire springs 6 8 – 8 or less MSWZ 10 MSW 10 8 10 10 or less 10 or less ※ MSWZ 12 ※ MSW 12 10 13 12.5 or less 13 or less ※ MSWZ 16 ※ MSW 16 13 16 16 or less 16 or less ※ MSWZ 18 ※ MSW 18 16 19 18 or less 18 or less ※ MSWZ 22 ※ MSW 22 20 23 22 or less 22 or less – ※ MSW 27 25 28 27 or less 27 or less – ※ MSW 30
Quotation
Delivery
Runner stripper plate Urethane spring
Selection side plate
945
946
※ Fine thread (Pitch 1.5)
Mold closed
Mold opened
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