Cutting Speeds/Materials-Hss Cutters; Workpiece Material And Size Limitations - Revo R322 Original Instructions Manual

CUTTING SPEEDS/MATERIALS—HSS CUTTERS
The REVO R322 DRILL is a single speed drill unit with a nominal load speed of
390 rev/min. Under load the R322 will regulate its speed depending on the load applied.
ie: a small cutter will run faster than a larger cutter (if the same feed rate is applied)
The R322 DRILL has the optimum power / torque / spindle speed for HSS annular and
TCT cutters in the range
equivalent.
The R322 DRILL can also be used on other materials such as high tensile steel and
stainless steel if the appropriate speed for the material to be cut is selected.
Cutting Speeds—suggested speed rates for varying cutter diameters / materials
Cutting Speeds (Metric)
WORKPIECE MATERIAL AND SIZE LIMITATIONS - MAGNET
The electro - magnet clamping force is measured as the pull off load when clamped on a
steel plate (EN10025 S235J or its equivalent) of 25mm thickness, flat with a good
surface and free from rust and debris.
For any other workpiece material the clamping force will be different, any difference in
workpiece thickness and the clamping force will deviate.
The minimum recommended plate thickness for the electro-magnet is 12mm thick.
If the workpiece is thinner than recommended then an additional plate, made of suitable
material should be added by clamping to the workpiece, this will help the electro-magnet
become more secure.
BEFORE using the drill always ensure the magnet is held onto the work piece securely.
Ø Ø
12mm to 32mm, cutting EN10025 S235J steel or its
Material
Surface
Speed
(M/min)
Aluminium 60
Brass 45
Mild Steel 24
High Tensile 9
17
Cutting Speeds (Imperial)
0.37" 0.75" 1.25" 1.62" 2.0" 2.37" 2.75"
Cutter Diameter (inches)
R322 DRILL - W18XC473 - Revised 231111
Material
Surface Speed
(Inches/min)
Aluminium 2.37"
Brass 1.75"
Mild Steel 1.00"
High Tensile 0.37"
3.12"