Optimum OPTImill BF 20V Operating Manual page 10

OPTIMUM
M A S C H I N E N - G E R M A N Y
We expressly point out that the guarantee will expire due to any constructive technical or proce-
dural changes which had not been performed by the company Optimum Maschinen Germany
GmbH.
With the conversion of the machine BF20V and BF20L an cabinet is required.
A suitable cabinet for these machines you can order:
Cabinet SHC 1 for BF20V, item no. 353 9091

Cabinet SHC 2 for BF20L, item no. 353 9092

Cabinet SHC 2 for BF20LD, item no. 353 9092

ATTENTION!
The workpiece is always to be fixed by a machine vice, jaw chuck or by another
appropriate clamping tool such as for the clamping claws.
WARNING!
Risk of injury caused by workpieces flying off.
Clamp the workpiece in the machine vice. Make sure that the workpiece is firmly clamped in the
machine vice resp. that the machine vice is firmly clamped on the machine table.

Use cooling and lubricating agents to increase the durability of the tool and to improve the
surface quality.

Clamp the cutting tools and workpieces on clean clamping surfaces.

Sufficiently lubricate the machine.

Correctly adjust the bearing clearance and the guidings.
It is recommended:

Insert the drill in a way that it is exactly positioned between the three clamping jaws of the
quick action chuck.

Clamp and mills by means of the collet chuck and the corresponding collets.

Clamp end face mills by means of shell end mill arbors.
When drilling make sure that

the suitable speed is set depending on the diameter of the drill,

the pressure must only be such that the drill can cut without load

in case of too strong pressure the drill will get worn early or even might break resp. get
jammed in the hole. If the drill gets jammed immediately stop the main motor by pressing
the emergency stop button,

for hard materials, e.g. steel, use commercial cooling / lubricating agents,

generally always drive the turning spindle out of the workpiece.
ATTENTION!
Do not use the quick action drill chuck for milling tools. Never clamp a milling cutter into
the quick action drill chuck. Use a collet chuck and the corresponding collets for the end
mill.
When milling make sure that

the corresponding cutting speed is selected,

for workpieces with normal strength values, e.g. steel 18-22 m/min,

for workpieces with high strength values 10-14 m/min,

the pressure is selected in a way that the cutting speed remains constant,
for hard materials commercial cooling / lubricating agents are used.
GB BF20V | BF20L | BF20LD
Page 10
®
Translation of the original instructions Version 4.0.2 dated 2019-4-3