Wire for WEDM
OKI
Co.No. Kind
OB Brass Wire
OS Coating wire
Name Characteristic
OB-P
OB-B
Basic type
Two type are available : Hard(P)and Soft(B)
OB-7S This type has the smallest wire diameter in
the series ( 0.07mm )
OB-PN It is ideal mainly for a wire EDM machine used in combination with an AT unit made by Mitsubishi Electric.
Non- Paraffine
OB-PZN It is ideal mainly for a wire EDM machine which has an AWF mechanism manufactured by Fanuc.
Non- Paraffine
OS-Z This zinc-coated wire consists of brass wire electroplated with high purity zinc. The improvement of the processing speed is achieved by galvanizing the high purity zinc to the surface of brass. Minute electrical discharges are more possible than general brass by the uniform coating
OS-SN Processing speed improves compared with a brass wire. Automatic wire connection is good as well as the conventional brass wire.
Co.No. Diameter Bobbin/R
P-3R
1.6kg
P-3R
3kg
P-5R
5kg
TP-5R
5kg
P-10
10kg
P-10T
10kg
P-15
20kg
K-125
3.8kg
K-160
6kg
K-200
15kg
K-200
16kg
OB 7 S *1 - - - - - - - - - -
10 P
B
*2 *2 - - - - - - - - -
15 *2 *2 *2 *2 - - - - - - -
20/25/30 - Ο Ο Ο Ο - Ο Ο Ο Ο -
10/15 PN
PZN
Ο Ο *3 *3 *3 - *3 - - - -
20/25/30 - - Ο Ο - Ο Ο - - - -
OS 20/25/30 Z
- - Ο Ο Ο - Ο - Ο Ο -
20/25/30 GN - - Ο - Ο - Ο - - - -
*1.OB-7S is two types  0.5kg and 1.5kg * 3. OB-PZN type only
*2.OB-P type only

Bobbin
φD
(mm)
φd
(mm)
L
(mm)
a
(mm)
h
(mm)
Unit
(/1Case)

Bobbin form
P-3R 130 80 110 10 20 6
P-5R 160 90 114 12 20 4
TP-5R 160 90 114 12 20 4
P-10 200 90 134 12 25 1
P-10T 200 90 134 12 25 1
P-15 250 110,125 140 15 34 1
K-125 125 80 125 12.5 16 6
K-160 160 100 160 16 22 4
K-200 200 125 200 20 22 1