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WHISPER Reinforced Grinding Wheels
Achieve highly aggressive grinding at low noise
and vibration level with the WHISPER reinforced
grinding wheel.
PFERD has developed WHISPER, among other
innovative products, with the operator in mind,
to promote safety, health and comfort, without
compromising service life or grinding performance.
PFERD is focused on the long-term reduction of
noise and vibration levels produced by grinding
wheels, and on developing products which will
provide more comfort for the operator and others
in his environment.
The WHISPER reinforced grinding wheel achieves
significantly lower levels of vibrations and
substantially lower noise and dust levels with an
impressively higher machining capacity. The unique
wheel structure allows soft, comfortable grinding
with excellent surface quality.
Wheel Name
Description
Abrasive
Workpiece
Materials
Application Recommendation
for Use
WHISPER
WHISPER offers a unique combintion of
extremely aggressive removal rates, very
cool grinding to avoid thermal discoloration
on Stainless Steel, non-spalling grinding
performance and drastically reduced noise and
vibration levels.
Aluminum Oxide
Manufactured
without addition of
ferrous, sulphurous or
chlorinated fillers.
Stainless steel
(INOX), steel
Surface
grinding, work
on weld seams,
fillet weld
grinding
Achieves high stock
removal rates even at low
contact pressure.
WHISPER-ALU
WHISPER-ALU offers the same advantages as
the original WHISPER wheel, but is optimized
for non-loading performance on aluminum
and non-ferrous metals.
Surface can be welded immediately following
grinding operation. No secondary surface
cleaning operation is necessary.
Special Aluminum
Oxide
Soft, tough
and hard
aluminum,
non-ferrous
metals
Weld grinding,
edge grinding,
root pass
grinding
Achieves high stock
removal rates even at low
contact pressure.
Grinding Wheel Selection Guide
Good Better Best
N
Niche / Specialty
Diameter x Thickness x
Arbor Hole / Thread Size
WHISPER
for STEEL, STAINLESS
WHISPER
for ALUMINUM
Max.
RPM
Depressed Centre (Type 27)
4-1/2 x 1/4 x 7/8
61582
61250
10
13,300
4-1/2 x 1/4 x 5/8-11
61588
61256
10
13,300
5 x 1/4 x 7/8
61583
61251
10
12,200
5 x 1/4 x 5/8-11
61589
61257
10
12,200
WHISPER Depressed Center (Type 27) Grinding Wheels
T27