Manufacturing Machinery World August 2017

UPGRADED BAHCO 3851
BANDSAW BLADE CUTS
TOUGHEST MATERIALS,
WITH LONGER BLADE LIFE
Following stringent testing and field
trials a major upgrade of the popular
Bahco 3851PR bandsaw blade has been
implemented, improving blade
hardness, toughness and performance.
This upgrade now offers a wider
operating envelope within each TPI,
coupled with more precise tooth form,
making the new, 3851PRX ideal for
cutting the toughest materials.
It is a more universal blade which will
cut a greater range of work piece sizes
and shapes than conventional blades.
“This represents a massive evolution of
the 3851, with improvement in three key
areas: raw material, geometry and
production process,” says Peter Storr,
Bahco’s bandsaw specialist in the UK.
Here’s a summary of improvements
made:
Raw Material: a new, higher grade of
HSS Special design wire is now being
used, improving both the hardness and
toughness of the blade.
Geometry: the changes on geometry
have only affected the variable tooth,
giving a distinctive new look to the
3851PRX family, clearly differentiating it
from the rest of Bahco’s bandsaw
assortment. The more traditional
constant tooth (H & HA & R) version
remains unchanged.
Production process: the new 3851PRX is
manufactured on machinery specially
developed for the upgrade, giving a
better, consistent finish to the material. It
also generates less friction and vibration,
consequently improving fatigue failure.
Trials and tests: the upgrade has been
strongly supported by R&D testing and
field trials, using prototype, standard
and main competitor blades.
Field trials were designed to replicate
real life application while scientific tests
evaluated how the blades perform when
used in extreme conditions. In both test
types the new 3851PRX outperformed
the old 3851 and its main competitors.
Product features and benefits: the
improved blade is now available as a
complete assortment from 6mm to
80mm. It offers cutting solutions in both
Production Cutting and general purpose
applications.
Improved chipping resistance is
achieved without compromising
hardness, with less vibration and greater
resistance to heat and wear giving longer
blade life.
Applications: Contour cutting, including
aluminium and stainless steel, along
with Production Cutting and General
Purpose applications, cutting solids,
bundles, even profiles and castings.
For additional technical information
on the 3851PRX
visit:
www.bahco.com/bandsawblades
A registered trademark of SNA Europe Group
26 Machinery World, August 2017