Inner Diameter SR Head (with Prepared hole)
PIN-POINT GATE BUSHINGS WITH FLANGE INNER DIAMETER SR – PREPARED HOLE TYPE –
SKH51
SKH51
E This product enables to alter the tip surface of the gate to fit the shape of molding products. Straight prepared (P) instead of the cutting angle (K).
PartNumber- L - P -SR- A - G - B PGHTBL4 - 35.01 - P0.8 - SR1.00 - A2 - G2.0 - B15.00
PGHTBL
Order
Enlarged view of the tip
Quotation
Delivery
≦ R 0.2
G
SR
( Electro discharge finishing is applied on the SR area. )
6.3
1.6
Part Number -
L -
P - SR -
A - G -
B - (CC/CVC/KC/WKC)
Alterations
PGHTBL4 -35.01-P0.8-SR1.00- A2 -G2.0-B15.00- CC
≦ R 0.2
Alterations Code
Spec.
Alterations Code
Spec.
0 － 0.02
4
C ± 0.1
＊
（ L － B ）
0 －
D － 0.005 0
Machining (C chamfering) for inlay relief. E D3/4 → C0.3 D5–8 → C0.5 Machining (C chamfering) for inlay relief. CVC = 0.1mm increments 0.2 ≦ CVC ＜ (D 2 −D) 2 −0.1
0.02
B
KC
Adds a single key flat on the head
CC
＋ 0.02 0
L
D 2 /2 － 0.02 0
B
＊ P dimension is the lower hole of straight.
Eccentricity between D and P is 0.05 or less
CVC ± 0.05
WKC Adds (two) parallel key flats on the head.
CVC
M Material SKH51 H Hardness 59–61HRC
0
D 2 /2
－ 0.02
B
Part Number
■ Features Suitable blank material of gate bushing for arranging pin-point gate bushings to molding product's spherical surface, slope surface etc. G dimension (the distance between gate tip face and SR) can be selected longer than normal type. Additionally, due to the straight prepared hole in the G dimension, a high degree of processing freedom is possible. Customers who carved gate shape in cavity directly in the past will find the advantage that it can be maintained simply by exchanging bushings only.
B 0.01mm increments
L 0.01mm increments
H D 2
Prepared hole P SR
A°
G
Example
Type
D
1.2 2.0 3.0 1.2 2.0 3.0 1.2 2.0 3.0 1.2 2.0 3.0 1.2 2.0 3.0 1.5 3.0 4.0 1.5 3.0 4.0 1.5 3.0 4.0 1.5 3.0 4.0 1.5 3.0 4.0
5.00–9.00 5.50– 9.50 6.50–10.50 5.00–8.00 5.50– 8.50 6.50– 9.50 5.00–7.00 5.50– 7.50 6.50– 8.50 5.00–30.00 5.50–30.50 6.50–31.50 5.00–20.00 5.50–20.50 6.50–21.50 5.00–30.00 6.50–31.50 7.50–32.50 5.00–30.00 6.50–31.50 7.50–32.50 5.00–20.00 6.50–21.50 7.50–22.50 5.00–30.00 6.50–31.50 7.50–32.50 5.00–30.00 6.50–31.50 7.50–32.50
1
0.4 0.5 0.6
3
1.00
2
8 5
EMPGA （ P.737 ）
Locating Rings （ P.701−708 ）
20.00–40.00
3
Runner lock pin （ P.713−722 ） Fixed side die plate
1 2
0.4 0.5 0.6 0.7 0.8
1.00 1.25
4
9 6
K °
Runner stripper plate Runner
3
PGHTBL ( High Speed Steel SKH51 )
PGHTBL
1 2 3
Fixed die plate
K °
1.25
Pin-point gate bushings （ PGHTBL ）
0.6 0.7 0.8
1 2
5
11 8
Cavity
1.50
20.00–60.00
3
Enlarged view of the tip
1 2 3 1 2 3
1.25 1.50
6
0.8
12 9
It's applicable to arrange a pin-point gate on the slope part of molding product
G dimension (the distance between gate tip face and SR) is available for selection. Please process the shape fit to the molding products.
After the end processing, please process cutting angle of the gate tip by the electrode (EMPGA P.737 ). E K° of EMPGA in the figure becomes G° when ordered.
1.50 2.00
8
0.8
14 11
● Calculation for the inlet diameter ＊ α ＊ α≒ 2SR + 2(L-G-SR)tan A° 2 G SR
L
E The dimension acquired using the above calculation is the theoretical (reference) value.
761
762
Powered by FlippingBook