RECTANGULAR EJECTOR PINS

RECTANGULAR EJECTOR PINS



Category Type
Material Head Thickness
(T)
P·W Tolerance Part Number Part Number Part Number Part Number
SKH51
equivalent
Edge 4mm
(T4)
0
-0.003
- - P-ERZF -
0
-0.005
- P-ERVL P-ERVF -
4mm
(T4)small diameter
0
-0.005
- - P-ERVYF -
Normal 4mm
(T4)
0
-0.003
- - ERZF -
0
-0.005
ERVB ERVL ERVF ERVSF
0
-0.01
ERPH ERL ERF ERSF
4mm
(T4)small diameter
0
-0.005
- - ERVYF -
4·6·8mm
(JIS)
0
-0.005
ERVJB ERVJL ERVJ ERVSJF
0
-0.01
ERJ ERJL ERJF ERSJF
8mm
(JIS)
0
-0.02
ERJXB ERJXL ERJX -
SKD61
equivalent
+
Nitrided
ERNXB ERNXL ERNX -
Flat bar:SKH51 equivalent
Shaft:SK4
6·8mm
(JIS)
ERHK-B ERHK-L ERHK-F* -
·For details, refer to the catalog page of each product.
*W dimension for ERHK-F can be selected.

R-CHAMFERED RECTANGULAR EJECTOR PINS



Category Type
Material Head Thickness(T) P·W Tolerance Part Number Part Number Part Number
SKH51
equivalent
4mm
(T4)
0
-0.005
ERVLWR
ERVLFR
ERVWR
ERVFR
ERV□□R
0
-0.01
ERLWR
ERLFR
ERWR
ERFR
ER□□R
4·6·8mm
(JIS)
0
-0.005
- ERVJWR
ERVJFR
ERVJ□□R
0
-0.01
- ERJWR
ERJFR
ERJ□□R
8mm
(JIS)
0
-0.02
- ERJXWR
ERJXFR
-
SKD61
equivalent
+
Nitrided
8mm
(JIS)
0
-0.02
- ERNXWR
ERNXFR
-

C-CHAMFERED RECTANGULER EJECTOR PINS



Category Type
Material Head Thickness(T) P·W Tolerance Part Number
SKH51
equivalent
4mm
(T4)
0
-0.005
ERVF□□C
0
-0.01
ERF□□C
4·6·8mm
(JIS)
0
-0.005
-
0
-0.01
ERJF□□C

Characteristics of materials for straight ejector pins

Material High Speed Steel
SKH51
Dies Steel
SKD61+Nitrided
Hardness   HRC 58~60 Surface:900HV~
Base material(Core):40~45
Machining
characteristics
Wear resistance 5 4
Ability to be mirror-finished 4 3
Toughness 3 4
Corrosion resistance 3 3
Physical
characteristics
Density [g/cm3] 8.2 7.75
Modulus of longitudinal elasticity
[kgf/mm2]
22300 21000
Coefficient of thermal expansion
[×10-6/°C]
10.1 10.8
Thermal conductivity
[cal/cm·sec·°C]
0.051 0.061
Mechanical
characteristics
Tensile strength [kgf/mm2] 235 135
Charpy impact values [kgf·m/cm2] 2 4
Machining characteristics

Conversion expression
1kgf/mm2=9.81N/mm2
1cal/cm·sec·°C=418.6W/M.K
1kgf·m/cm2=9.81J/cm2

Data may vary depending on heat processing and working conditions; use the data as reference.

Rectangular Ejector Pins With Gas Vent



Category Type
Material Head Thickness(T) P·W Tolerance Part Number
SKH51
equivalent
4mm
(T4)
0
-0.005
GV-ERVF
0
-0.01
GV-ERF
4·6·8mm
(JIS)
0
-0.005
GV-ERVJ
0
-0.01
GV-ERJF

RECTANGULAR EJECTOR PINS WITH TIP PROCESS



Category Type
Material Head Thickness(T) P·W Tolerance Rectangular Ejector Pins with Tip Process(Free designation) Tip R processing (free designation)
Part Number Part Number
SKH51
equivalent
4mm
(T4)
0
-0.005
ERV□□ ERVWR□□
ERVFR□□
0
-0.01
ER□□ ERWR□□
ERFR□□
4·6·8mm
(JIS)
0
-0.005
ERVJ□□ ERVJWR□□
ERVJFR□□
0
-0.01
ERJ□□ ERJWR□□
ERJFR□□
·For tip shapes, refer to click here.

RECTANGULAR EJECTOR PINS WITH ENGRAVING



Category Type
Material Head Thickness(T) P·W Tolerance Engraving type(Free designation type) Tip R processing
(free designation)
Part Number Part Number
SKH51
equivalent
4mm
(T4)
0
-0.005
ERVF□M
ERVF□MR
ERVWR□M
ERVWR□MR
ERVFR□M
ERVFR□MR
0
-0.01
ERF□M
ERF□MR
ERWR□M
ERWR□MR
ERFR□M
ERFR□MR

PRECISION RECTANGULAR EJECTOR PINS-RECTANGULAR SHANK TYPE



Category Type
Material Head Thickness
(T)
P·W Tolerance One Step
Part Number
SKH51
equivalent
4mm
(T4)
0
-0.005
ERSRP

D-SHAPED EJECTOR PINS



Category Type
Material Head Thickness(T) D·P·W Tolerance Part Number Part Number
SKH51
equivalent
4mm
(T4)
0
-0.01
ERDP ERDF
4·6·8mm
(JIS)
ERDPJ ERDFJ

TOP

map search