Rotabroach COMMANDO 40 Original Instructions Manual page 20

Issue 1
19) CUTTER SELECTION AND SPEEDS
Mild and free cutting steels
Mild and free cutting steels
Steel angle and joists
Steel angle and joists
Plate and sheet steel
Plate and sheet steel
Possible speed selection for mild steel with ideal conditions at 30 M/min.
This data is presented for guidance only, and should be adjusted to suit site and material
condition.
Original Version
Material
Aluminium
Aluminium
Brass
Brass
Cast iron
Cast iron
Stainless steel
Stainless steel
Stainless steel
Rail track
Tool steel
Die Steel
Speed selector
position.
1
2
3
4
5
6
Material Hardness
<700N/mm²
<850N/mm²
<700N/mm²
<850N/mm²
<700N/mm²
<850N/mm²
<750Nmm²
<850N/mm²
<700N/mm²
<850N/mm²
<700N/mm²
<850N/mm²
<700N/mm²
<850N/mm²
>850N/mm²
>850N/mm² SCRWC or SCRWCL
>850N/mm²
>850N/mm²
Cutter diameter Nominal RPM
40
32
24
19
16
14
20
October 2014
Cutter
RAP or RAPL
SRCV or SRCVL
RAP or RAPL
SRCV or SRCVL
RAP or RAPL
SRCV or SRCVL
RAP or RAPL
SRCV or SRCVL
RAP or RAPL
SRCV or SRCVL
RAP or RAPL
SRCV or SRCVL
RAP or RAPL
SRCV or SRCVL
CWC to CWCX
CWC to CWCX
CWC to CWCX
270
330
400
470
570
610