Rectangular ejector pins / Free designation type
High Speed Steel SKH51
RECTANGULAR EJECTOR PINS WITH FREE FLANGE POSITION
S
L
Part Number – L – S – P – W – N – (HC/TC … etc.) ERSH 5 – 150.00 – S10.00 – P3.00 – W2.00 – N80 – TC3.0
High Speed Steel SKH51
Alterations
Alteration details D P.145
Die Steel SKD61 + Nitriding
Alterations
Code
Details
Alterations
Code
Details
Precision key flat cutting VAK = 45° increments E 0 ≦ VAK ＜ 360 X Combination with KSA/WSA not available Precision two parallel flats cutting VAW = 45° increments E 0 ≦ VAW ＜ 360 X Combination with KSA/WSA not available Key flat cutting (angled) AKC = 1° increments E 0 ≦ AKC ＜ 360 E W hen combined with KSA/WSA, 90° increments only Two parallel flats cutting (angled) AWC = 1° increments E 0 ≦ AWC ＜ 360 E When combined with KSA/WSA, 90° increments only Two flats (right angled) cutting (angled) ARC = 1° increments E 0 ≦ ARC ＜ 360 E W hen combined with KSA/WSA, 90° increments only Three flats (angled) cutting ADC = 1° increments E 0 ≦ ADC ＜ 360 E W hen combined with KSA/WSA, 90° increments only Two flats (angled) cutting KGA = 1° increments E 0 ＜ KGA ＜ 360 X Combination with KSA/WSA not available
0 °
0 °
Head diameter change HC = 0.1mm increments E D ＋ 1 ≦ HC ＜ H ， D ≧ 1.5
HC
VAK
270 °
90°
P – 0.01 – 0.02
180°
0 °
ERSH ERSHE
0 – 0.005 P
0 °
Head diameter change (precision) HCC = 0.1mm increments E D ＋ 1 ≦ HCC ＜ H – 0.3 ， D ≧ 1.5
HCC
VAW
2 － R ≦ 0.5
270°
90°
Step R
0 －
C ≦ 0.3
（ D ≦ 2 R ≦ 0.3 ）
0 – 0.01 P/W
H
0.3
180°
Head thickness change TC = 0.1mm increments E 2.0 ≦ TC ≦ 4 (Dimensions L, N and S remain unchanged)
0 °
0 °
0 – 0.005 P/W 0 –0.005
TC － 0.02 0
TC
AKC
270°
90°
S
4
－ 0.01 0
－ 0.005 0
Shaft Diameter(P) Total Length Designation Total Length Designation Designation
P
P
180°
0 －
0 －
4
D 1
Shoulder cutting (1 plate) KSA = 0.1mm increments E W/2 ＋ 0.1 ≦ KSA ≦ D/2 – 0.1 E D ≧ 1.5 Shoulder cutting (2 parallel plates) WSA = 0.1mm increments E W/2 ＋ 0.1 ≦ WSA ≦ D/2 – 0.1 E D ≧ 1.5
0.02
0.1
＋ 5 0
（ L － N ）
0 － 5
KSA
N
0 °
0 °
P ≧ W
K ＝
2 2 P W ＋
＋ 0.02 0
S － 0.02 0
AWC
L
270°
90°
Stepped Shape
180°
M Material H Hardness
SKH51
Part Number
Head thickness T P/W Tolerance
WSA
58–60HRC Range of guaranteed retention diameter (D) precision/base material hardness (Details D P.143 ) Step R (Details D P.166 )
0 –0.005
ERSH
0 °
0 °
4mm (T4)
Square Shape
ARC
0 –0.01
270 °
90 °
ERSHE
2 － CSW R (C recess processing at 2 points on top)
Tip Process
180 °
C chamfering processing at 2 pointson top (except tip) for relief is performed. Designation method CSW1 – E25
Part Number
0.01mm increments
0 °
0 °
K max.
N 1mm increments
N min.
CSW
H D1
CSW, CSF: Range of designation W CSW, CSF 1.0 ≦ W < 1.5 0.3
Type
D
L
S
P
W
ADC
270 °
90 °
＋ 5 0
(C processing range)
P
1
0.30–0.80 0.60–1.30 0.80–1.80 0.80–2.30 0.80–2.80 1.00–3.30 1.00–3.80 1.20–4.30 1.50–4.80 1.80–5.30 2.00–5.80
1
0.9 1.4 1.9 2.4 2.9 3.4 3.9 4.4 4.9 5.4 5.9
E
N
180 °
30 ≦ (L – N) ≦ 50
50.00–100.00
3
0.5 1 1.5
1.5
1.5
23
0 °
5.00–40.00
W ≧ 1.5
2
4 2 5 2.5 6 3
4 － CSF (C recess at 4 points) R
C chamfering processing at 4 points (except tip) for relief is performed. Designation method CSF0.5 – E30
KGA
90 °
0.30–
2.5
26
270 °
E P ≧ 1.5 E C SW, CSF ＜ W/2 E = 1mm increments E 5 ≦ E ≦ (L – N) – 20
180 °
3
( P 0
CSF
ERSH
–0.005 )
27
Two flats (angled) cutting KGD = 1° increments E 0 ＜ KGD ＜ 360
90 °
3.5
3.5
7
ERSHE ( P 0
–0.01 )
30 ≦ (L – N) ≦ 150
0 °
4
50.00–200.00
4
KGD
＋ 5 0
180 °
(C processing range)
P
E
29
N
D/2
X Combination with KSA/WSA not available E Pay attention to the standard position of 0°.
4.5
5.00–50.00
4.5
270 °
0.40–
8
5
5
31
5.5
5.5
0.50–
9
6
6
33
Rectangular ejector pins with free flange position make an ejection with time difference possible. The depth of counter bore Z (Fig.1) make an ejection slower than the other ejector pins.
Example
K ＝ P 2 + W 2
E P ≧ W
E Designate P/W dimensions within the Kmax.
Submarine gate
Molding products
PartNumber– L – S – P – W – N ERSH 5 –150.00–S10.00–P3.00–W2.00– N80
Order
Runner
Fixed die plate
Runner
Molding products
Molding products
Cavity
Delivery Quotation
Precision Standard
Core
Pmin. Pmax.
W plane as the base • ERSH (Pmax. – Pmin.) ≦ 0.01 • ERSHE (Pmax. – Pmin.) ≦ 0.02
Squareness of the tip corner
Movable die plate
Rmax. ≦ 0.03 (deburring R) E Light deburring is carried out on the corners of the tip to measure the P/W dimensions. (Details D P.166 )
Rmax.
Squareness of the tip corner
Upper ejector plate
Lower ejector plate
Base clamping plate
Fig. 1 ・ Mold closed
Fig. 2 ・ Mold opening
Fig. 3 ・ Mold opened
159
160
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