BULLDOG 65 Hydraulic Steelworker
10
4.4
4.4
4.4
4.4
P
P
P
P
UNCH AND
UNCH AND
UNCH AND
UNCH AND
D
D
D
D
IE
IE
IE
IE
L
L
L
L
UBRICATION
UBRICATION
UBRICATION
UBRICATION
It is recommended that one of the following oils is applied by brush to the punch and die or
both sides of the material being punched.
SHELL
- GARIA 927
B. P.
- SERVORA 68
CASTROL
- ILOBROACH 219
DUCKHAMS
- ADFORNOL EP7
Die clearance: It is normal practice to aim for a clearance of 10% material thickness.
Whether clearance is added to the size of the die or deducted from the size of the punch,
depends on the nature of the work. When holes of a given size are required the punch is made
to size and the die is made larger. Conversely, when blanks of a given size are required the die
is made to size and the punch smaller.
Special clearance dies for thin sheet and plate punching, or size dies and special clearance
punches can be supplied to order.