Marshalltown SP684 SURFACE SHARK Surface Planer - Manual (Page 14)

PAGE 14 SP684 SuRFACE ShARK SuRFACE PLANER
Many flail configurations are available to meet a
wide variety of job application and surface material
specifications. To give additional perspective to each
configuration a rating system of 1 to 10 (10 being
highest) has been devised.
Beam Flail
The beam type flail is manufactured from high carbon,
alloy steel that is thoroughly hardened for additional
service life. FIGuRE 2. It is highly effective for
scabbling or scarifying and delivers medium to coarse
surface finish texture. Designed for medium to high
speed material removal of the work surface.
FIGuRE 2
Suggested applications:
1) Medium duty asphalt and concrete milling
2) Descaling steel decks
3) Removing thick material build-ups of greases,
paints, oils, vegetable powders and resins from non-
wood type floors
4) Dried, fully cured, carpet and tile adhesive removal
5) Painted traffic line removal
COST 1
PRODUCTIVITY 5
SERVICE LIFE 2
The beam flail should be replaced when the outside
diameter is worn to approximately 1-5/16 inch or the
inside diameter elongates to approximately 3/4 inch.
Pentagonal Flail
The pentagonal flail is manufactured from high carbon,
alloy steel that is thoroughly hardened for additional
service life. FIGuRE 3. Each section of the five sided
design features a small, tungsten carbide insert that is
first placed in a small hole and then held in position with
copper brazing. It is highly effective for scabbling or
scarifying and delivers medium to coarse surface finish
texture. Designed for high speed material removal of
the work surface.
FIGuRE 3
Suggested applications:
1) heavy duty asphalt and concrete milling
2) Milling concrete joints
3) Asphalt and concrete grooving
The pentagonal flail is designed for more aggressive
and rapid removal of a surface in comparison to
the beam flail. The addition of the tungsten carbide
inserts contributes to its long service life and higher
production rates. The tungsten carbide is also the main
reason for the cost differential between it and the other
flails. The design configuration yields a rather coarse
surface finish and texture. For many job applications,
this finish and texture will be satisfactory. Some
applications may require an additional smoothing
process. For example: removing high spots or other
irregularities from sidewalks. The initial process would
utilize pentagonal flails for productivity and service life
reasons. If the resulting surface finish is too coarse to
meet specifications, it can be smoothed with the use of
the beam flails.
COST 10
PRODUCTIVITY 8
SERVICE LIFE 10