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Extraordinary Blade Life – With the Least Tendency to Crack!
BLECHER hot cutting circular saw blades are the specialists for the rough parting of hot
steel items at above 700 °C. Numerous particular processing methods and greatest
care during manufacturing guarantee top performance at extra demanding require-
ments for the cutting of bars, billets, rails, sections, tubes and profiles. It is
used with stationary sawing plants in hot rolling mills and extrusion lines and
diameter up to 2,500 mm.

Sawing machine:
stationary horizontal cut-off-saws mady by e.g.
Abbey Etna, Kocks, Mannesmann, Schloemann-Siemag,
Danieli-Morgardshammar, Koch-HK, SMS-Meer, Wean United, etc.
Saw blade material:
BL60 is a BLECHER exclusive, unique material for best possible blade life at
least possible tendency to cracking (for tooth tip hardened blades).
other material with carbon content as given by the application (the Carbon
content determines hardness  = blade life and its tendency to crack by a large
amount):
- 75 Cr 1 (1.2003) standard for smaller diameters, hardened and
tempered all over, C = O.75%
- 51 Mn 7 for medium (hardened and tempered all over) and larger
(with hardened tip of tooth) diameter, C = 0.55%
- BLECHER special steel grades BL50, BL55 and BL8O for all
diameters, alloys optimised for long blade life and low addiction to cracking
Finish of side faces:
- Black rolled (standard) finish = side faces of saw blade not ground
for moderate cutting clearance, Blecher always balances also black rolled saw
blades!
- flat ground finish = side faces of saw blade parallel ground upon customer
request
- hollow ground and off-set finish: side faces are hollow ground, optionally
off-set ground and balanced after flat grinding; for maximum cutting
clearance, reduced burr forming and high cut quality

Conditions of application
vary with the machine used and workpieces to be cut
Cutting speed: 110-150 m/s
Feeding speed: approx. 1000-3000 mm 2 /s
Cooling: high pressure cooling with water