Total length designation type
High Speed Steel SKH51 Head thickness JIS
Standard type
STRAIGHT EJECTOR PINS –STANDARD/L DIMENSION DESIGNATION TYPE–
L
L
Part Number – L – (KC/WKC … etc.) EPHJ4 – 200 – TC3.0 EPHJ–L5 – 210.00 – TC5
High Speed Steel SKH51 + Hard chromate Die Steel SKD61 + Nitriding High Speed Steel SKH51
Alterations
Alteration details D P.9
Alterations Code
Spec.
Alterations Code
Spec.
Head diameter change HC = 0.1mm increments E P + 1 ≦ HC < H
Precision single flat cutting P/2 ≦ VKC < H/2
VKC
HC
VKC － 0.02 0
EPHJ EPHJ － L
EPHJE EPHJE － L
Head diameter change (precision) HCC = 0.1mm increments E P + 1 ≦ HCC < H−0.3
b 1 (Range of guaranteed shaft diameter precision)
x 1
Precision two flats cutting P/2 ≦ VWC < H/2
VWC
HCC
VWC － 0.02 0
Die Steel SKD61
Head thickness change TC = 0.1mm increments E T/2 ≦ TC < T EPHJ/EPHJE c Dimension L becomes shorter by (T–TC). EPHJ–L/EPHJE–L cE T–TC ≦ Lmax.–L (Dimension L remains unchanged)
Single flat cutting P/2 ≦ KC < H/2
Pre–Hardened Die Steel SKD61
0
KC
TC
R ≦ 0.5
TC
－ 0.02
KC － 0.1 0
About Designation Unit for Key Flat Cutting
T
0 －
P － 0.02 － 0.01
T
0 －
0.02
P
0.005
Stainless Steel SUS440C
＋ 0.1 0
L
d
Dowel hole boring X Combination with other than NHC/ NHN/TMC/GVC not available
WKC Two flats cutting P/2 ≦ WKC < H/2
NC
0 － 0.1
T P Dimension Tolerance
Part Number
Shape
Head thickness
T L Dimension Tolerance
Tip Face Roughness
WKC
T
0 –0.005
EPHJ
4mm
+ 5 + 0.1
Varied dimension flat cutting P/2 ≦ KAC < H/2 KBC = 0.1mm increments only KAC < KBC < H/2
T d ℓ 6 3 5 8
Standard
–
d
Dowel hole + Spring pin driving X Combination with other than NHC/ NHN/TMC/GVC not available Dowel hole + Dowel pin driving X Combination with other than NHC/ NHN/TMC/GVC not available Numbering on the head Range of designation and Designation method: D P.10 X Combination with SKC/MC not available
(1)To align the key flat with the shaft diameter Unit of designation 0.05mm increments possible
–0.01 –0.02
KAC KBC
EPHJE
JIS (6/8mm)
NCW
6/8mm (JIS)
－ 0.1 0
－ 0.1 0
KAC
KBC
M Material H Hardness
SKH51
+ 0.02 0 L > 200 c
0 –0.005
EPHJ–L
T
58–60HRC Range of guaranteed shaft diameter precision/base material hardness (Details D P.7 )
L dimension designation type
10mm
(
)
+ 0.05 0
–0.01 –0.02
EPHJE–L
T d
ℓ 1
d
6 8
Two flats (right angled) cutting P/2 ≦ RKC < H/2
3 5
RKC
NCS
P –0.01 –0.02 P 0 - 0.005 –
RKC － 0.1 0
■ Standard type
T
Part Number
L Selection
T d ℓ 2 6 3 5 8
H T
217
DKC Three flats cutting P/2 ≦ DKC < H/2
NHC
Type
P
(2)To designate arbitrary key flat dimensions Unit of designation 0.1mm
0 － 0.1
P 0
DKC
DKC
–0.002
4
100 100 100 100 100 100 100 100 100 100
150 150 150 150 150 150 150 150 150 150 150
200 200 200 200 200 200 200 200 200 200 200
250 250 250 250 250 250 250 250 250 250 250
300 300 300 300 300 300 300 300 300 300 300
8
Automatic sequential numbering on the head Range of designation and Designation method: D P.10 X Combination with SKC/MC not available
4.5
Four flats cutting P/2 ≦ SKC < H/2
Standard Size Total Length Designation
1 2 3
SKC
NHN
－ 0.1 SKC 0
5
350 350 350 350 350 350 350 350 350
9
EPHJ
5.5
6
AG °
± 0.5
Two flats (angled) cutting P/2 ≦ KGC < H/2 AG = Designation 1° increments 0 < AG < 360
(P 0
–0.005 )
TMC Lapping on the tip face
0 °
6
KGC
10
Shaft Diameter Designation Shaft Diameter/ Total Length Designation
E Available for L Dimension designation type only
L
KGC
6.5
11
120 ° 120 °
Gas vent machining S, B = 1mm increments E 2 ≦ S ≦ 10, S + 5 ≦ B ≦ 30 E Available for L dimension designation type only
7 8 9
EPHJE (P –0.01 –0.02 )
Three flats cutting at 120° P/2 ≦ KTC < H/2
－ 0.1 120 ° 0
KTC
GVC
13 14 15 17
S
KTC
Tip Process
B
8
MC
Head tapping E Available when P ≧ 8 X Combination with other than TMC/GVC not available
P M 8/9 M4 10 M5 12 M6
10 12
Engraving
MC
M × 1
Gas Vent
■ L dimension designation type
Part Number
L 0.01mm increments
H T
Type
P
4
40.00–300.00
8
4.5
5
9
EPHJ–L (P 0 –0.005 )
5.5
6
6
10
6.5 7
11
40.00–350.00
EPHJE–L (P –0.01 –0.02 )
8 9
13 14 15 17
8
10 12
Part Number – L EPHJ4 – 200 EPHJ–L5 – 210.00
Quotation
Delivery
Order
15
16
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