MOTOR GRADERS
We offer hundreds of cutting edge options available on the shelf, plus theability to customize through our Made as Order (MAO) program. Uniqueofferings like the Cat GraderBits™ system meet the toughest applicationneeds and are complemented by multiple End Bit options. Trust your Cat
dealer to offer you solutions that focus on total machine productivity.

MOTOR GRADERS
DOZERS 1

CHOOSING AN EDGE
Edge selection is critical for enhancing production and keeping cost to a minimum. Application
affects the cutting edge shape, metallurgy and style. Impact, penetration and abrasion define
your application environment. An edge has to penetrate the material and not break during
operation. Edge life then becomes a matter of metallurgy and thickness.

WHAT IS YOUR APPLICATION?
DEVELOPING A ROAD OR PERFORMING HEAVY MAINTENANCE» A flat edge is best suited for this application. A better penetrating option
is a flat serrated edge. A flat edge has limited ability to carry material
forward.

GRADING HARD-PACKED GRAVEL, FROZEN EARTH AND ICE» A serrated edge penetrates better than a continuous edge because itexerts more down pressure. A curved serrated edge penetrates better
than a flat serrated edge with a forward mold board.

RECONDITIONING OR FINISH GRADING AN EXISTING ROAD SURFACE» Curved edges penetrate the roadway while carrying existing material

forward to leave a smooth flat surface. A better penetrating option is a
curved serrated edge. A serrated edge will not leave as clean a roadway
surface as a continuous edge.

2 MOTOR GRADERS

MOTOR GRADER CUTTING EDGE OPTIONSPARTNER WITH CATERPILLAR, EDGE OUT THE COMPETITION.
Caterpillar offers a wide range of cutting edges for motor graders. Each provides
certain benefits when used in the appropriate application. Using the right edge iscritical for enhancing production and keeping total costs to a minimum. The threefactors to consider in choosing a cutting edge are shape, width and thickness.
There are two basic edge shapes—flat and curved—with serrated edges
available in both configurations. In addition, the Cat GraderBits system
dramatically expands the range of edge shape options. Cat offers two types ofgrader edges and three edge thicknesses for the 16M and 24M motor graders.

SUPERIOR DURABILITY,
MORE OPTIONSCat DH-2 through-hardened steel edges
are available in a variety of shapes andthicknesses to fit every application.

EXTENDED
EDGE LIFE

Maximize your edge life with tungsten
carbide edges.

MAXIMUM PENETRATION,MINIMUM WASTE

Cutting bit systems.

MOTOR GRADERS 3

THROUGH-HARDENED
CUTTING EDGES
Most Cat edges are through-hardened steel, which offers high-impact resistance. High-carbon
edges have good surface hardness and perform well in high-abrasion, low-impact applications suchas finish work. High-carbon edges will not withstand the impact level of a through-hardened edge.

FLAT» Heavy road maintenance and pioneering» Maximum strength and available wear material» Best option for abrasion and impact resistance

FLAT SERRATED» Better penetration than a continuous edge (greater down pressure
per inch of edge contact)» Designed to penetrate packed gravel, frozen earth and ice» For severe impact conditions, install over a 6” (152 mm) edge to reduce
tooth breakage

CURVED» Provides superior penetration and rolling action necessary for fine gradingand finish work

» Finishing tolerances less than 1/4” (6 mm)—the best value may be in selecting
a narrow and thin cutting edge

CURVED SERRATED» A curved serrated edge penetrates better than a straight serrated edge
with a forward mold board

EDGE WIDTH EQUALS WEAR MATERIAL» An 8“ (203 mm) edge provides twice the wear material as a 6” (152 mm) edge
at about 35% more cost

» Hardware cost and R&I downtime are reduced by 50%

4 MOTOR GRADERSTUNGSTEN CARBIDE TILE
CUTTING EDGESCat Tungsten Carbide Cutting Edges combine through-hardened steel with the wear resistanceof tungsten carbide. When used in high-abrasion, low-impact applications, they can provide
up to 20 times the life of a standard through-hardened edge. Fewer edge changes means lessdowntime and lower hardware costs.

TUNGSTEN CARBIDE EDGES» Tungsten carbide edges have a continuous row of trapezoid-shaped carbide“tiles.” This patented shape forms a leading / cutting edge

» Carbide tile bottom must be flat to the ground. 20 o maximum tilt
» Max 5 mph/8kph» Do not use on roads with large embedded rocks

FLAT EDGES» Maximum strength and available wear material» Longest wearing edge available in high abrasion and low impact

CURVED EDGES» Curved-edge design improves penetration and rolling action» Trapezoid-shaped tungsten carbide tile on leading edge stays sharp as it wears» Shorter edge sections speed rotation and reduce “throw-away” dueto edge crowning

SERRATED EDGES» Better penetration than a continuous edge (greater down pressure
per in2 of edge contact)» No cast angle restrictions

MOTOR GRADERS 5TUNGSTEN CARBIDE INSERTCUTTING EDGESCat carbide insert edges offer long wear life in higher speed applications like state/county roadsnow removal. The tungsten carbide is brazed into a milled groove in the center of the edge.
The design offers impact resistance and minimizes edge “crowning” in applications that requirea level grading operation.

6 MOTOR GRADERSROTATING BIT SYSTEM
The rotating bit system outperforms steel blades in high-production road reconditioning
applications. Individual cutting bits have tungsten carbide tips and form a serrated
edge to penetrate and lift material to the surface immediately. As a result, most roadmaintenance jobs can be accomplished in a single pass.

MORE PRODUCTION,LESS WASTE

Material is brought to the surface forreuse, reducing the expense of spreading
new gravel.

NO RESTRICTIONS

No cast angle restriction.

EASY INSTALLATION& MAINTENANCE

Bits changed individually with nospecial tools.

MOTOR GRADERS 7

ROTATING BIT SYSTEM
Rotating Scarifier Bits are self-sharpening for more uniform wear and long life. Cutting heightis maintained as cutting tools may be rotated from position to position. Carbide bits can last
as long as 5 -10 sets of conventional grader blades.
Rotating Scarifier Bits are made for applications such as dirt and gravel reclamation, oil roadreclamation, and snow and ice removal.

1” SHANK» Smooth design

7/8” SHANK» Engineered with flat sides that aid
in bit rotation

ADAPTER BOARDS» Either 5/8” or 3/4” bolt hole punch» 3‘ (914mm)-21 bits
» 4’ (1219mm)-28 bits
» Standard Board uses 7/8” bit» Heavy Duty board uses 1” bit

OPERATING TIPS
» 20o Board Angle» Moldboard may vibrate and bits may not turn if
angle is not correct

8 MOTOR GRADERS

INSTALLATION & REMOVAL
Improve safety and simplify edge change-out. Cat cutting edges allow you to usea threaded bolt and link to remove and install sections. Even worn edges can beremoved, because the threads are located in the back half of the hole.

1

Drilled and tappedholes.

2

Attach approved liftingdevice.

3

Lift.

MOTOR GRADERS 9

OPERATING TECHNIQUES FOR REDUCED COST.
Through better management of the interface between machine and materials,
operators can maximize productivity, lower machine operating costs and reducecab vibration, improving operator comfort.

MOLDBOARD POSITION» Start with moldboard 2” (4“ for 24M) ahead of the edge
» Grade with cutting edge 90° to the road
» Maintain fixed angle to ensure constant edge thickness» Laid back reduces penetration and can wear moldboard» Frequent angle changes will shorten the edge life

SPEED AND EXCESSIVE DOWN PRESSURE» Use accumulator to absorb shocks» < 6mph/8kph speed» Excess speed can cause edge slivering» Need penetration? Choose a thinner edge, a serrated edgeor the Cat GraderBits system for the most compacted materials

CROWNING» Occurs when the cutting edge conforms to the material
being graded» A narrow and thin edge reduces the “throw away” material» Extreme crowning may require a bit system

STANDARDIZE YOUR HARDWARE» Moldboard bushings reduce 3/4” holes to 5/8”
» Simplify inventory and lower cost

10 MOTOR GRADERSGRADERBIT2™ SYSTEMSMOOTH OUT THE TOUGHEST ROADWAYS IN A SINGLE PASS.
GraderBit2 System is ideal for finish grading, maintaining roadways or reconditioning haul roads. Tungsten carbide
cutting bits deliver up to 20x wear life of through-hardened cutting edges. 7 different bit designs can form acontinuous edge or 10 serration patterns that allow pass-through of 15 to 60mm aggregate.

LOWESTOPERATING COST

20% CPH SAVINGS VS THROUGH
HARDENED EDGESAPPLICATION
ADAPTABLE

2 CONTINUOUS EDGE SYSTEMS & 10
SERRATED OPTIONS RECONDITION ANY
SURFACE

BUILT TO BE REBUILTOVERLAY CHANNELS AND REPLACEABLE
BUSHINGS EXTEND BOARD LIFE

MOTOR
MOTOR GRADERSGRADERS 1111GRADERBIT2™ SYSTEM

BIT BOARDS THAT ARE BUILT TO PERFORM IN YOUR APPLICATION
Grooves cast into the boards accept weld overlay or material packing in order to extend board wear life, while
installing and removing the boards is made easier through pre-drilled lifting eye holes. Adapter boards feature anoff-set design that ensures optimal bolted joint strength and consistent bit placement.

Bushings reduce board damage during
extreme operations and can be replaced
to extend board life

12 MOTOR GRADERSGRADERBIT2™ SYSTEMRETENTION THAT INSTALLS WITHOUT TOOLS AND ADJUSTS TO YOUR GRADING CONDITIONS
Bits are installed effortlessly with no tools thanks to pull-ring pin that inserts into the bit shaft and locks over the bit.
Bit life is optimized at any cast angle thanks to Angling plates that always keep the bits facing the direction of travel.

The pull-ring pin makes bit
installation / removal easy
without the need for tools.

The bit shaft fits into the angling plate to prevent thebits from rotating. 7 plate options allow for a 0° to 30°
Blade cast angle in 5° increments.

Angle plates keep the carbide facing thedirection of travel to reduce erosion of the bit
body, which can reduce bit life.

MOTOR GRADERS 13

7 different bit designs can form a continuous edge or 10 serration patterns that allow pass-through of 15 to60mm aggregate. Serration patterns remove holes and ridges from compacted surfaces. Wide or SnowBitTM
create a continuous edge the system can be used for finish grading.

14 MOTOR GRADERS

WIDEWIDE MINING

At 63mm wide this bit
can be configured as acontinuous edge or placedin every other hole for a 2.5”
serration pattern.

63mm wide & 12mm taller.
Imbedded carbide layer adds
72% more carbide to extends
bit life.

STANDARD

STANDARD MINING

30mm, this bit offers aserration pattern that willallow aggregate up to 30mm
to pass through.

30mm wide & 12mm taller.
Imbedded carbide layer adds
72% more carbide to extends
bit life.

SHARP

SNOW BIT™

23mm wide, this bit will help
break into hard ground whileallowing aggregate size to37mm to pass through.

63mm wide bull nose carbide
insert & steel face. This
continuous edge system isimpact resistant & designed
for paved road snow
removal.

PENETRATIONBORE SAVER™

Specially design carbide
shape that comes to point
and a width of 15mm thisbit will help break into anysurface.

Used to protect adapter
board bore holes when notin use.

Aggregate (mm)Pass-ThroughBit Configuration

Bit Width0

Wide bits across the board

63 mm

15

Alternate Wide and Standard bits

63 and 30 mm

20Alternate Wide and Sharp bits

63 and 23 mm

25Alternate Wide and Penetration bits

63 and 15.5 mm

32Standard bits across the board

30 mm

34

Alternated Standard and Sharp bits

30 and 23 mm

38

Sharp bits across the board

23 mm

38

Alternate Standard and Penetration bits

30 and 15.5 mm

42Alternate Sharp and Penetration bits

23 and 15.5 mm

46Penetration bits across the board

15.5 mm64Wide bit every other space

63 mm

WIDE – 64 mm SERRATIONSHARP – 38 mm SERRATION

WIDE/PENETRATION – 25 mm SERRATIONWIDE – CONTINUOUS EDGESNOWBIT – CONTINUOUS EDGE

MOTOR GRADERS 15

GRADERBIT2™ SYSTEMREMOVAL AND INSTALLATION

135Insert bit into board, carbide facing
direction of travel

Insert pin into Bit pin holeInsert remaining Bits & Pins16 MOTOR GRADERS

24Place desired Angle Bracket over bit shaft

Fold ring over Bit shaft

END BIT SYSTEMPUT AN END TO MOLDBOARD WEAR.
Made of through-hardened DH-2 steel for added strength and service life, Cat end bits
protect moldboard edges from wear.

MOTOR GRADERS 17

END BIT SYSTEM
Maximize moldboard life and lower repair costs. Use Cat end bits, overlays, repair plates
and hardware to protect and repair your moldboards and working edges.

MOLDBOARD END BITS
» Recommended for all applications» Made of through-hardened DH-2 steel for added strength and service life

OVERLAY END BITS
» Fit over existing end bit» Recommended for applications such as ditching» Add strength and limit corner wear
» When worn on one side, overlay end bits can be rotated for a second wear life

MOLDBOARD REPAIR PLATES» Extend moldboard life with Cat Moldboard Repair Plates» Routine monitoring and timely edge replacement can prevent damage» When repair is needed, repair plates provide a way to extend moldboard lifeHARDWARE» When replacing ground engaging tools, always use Cat hardware regardlessof the application» Cat Grade 8 hardware is performance-matched to Cat G.E.T. in both strengthand durability

18 MOTOR GRADERSRIPPER-SCARIFIER SYSTEMGET MORE OUT OF YOUR GRADER.
Scarifier and ripper systems on motor graders can be used to improve road surfaces bylifting material from compacted and worn areas or by removing the “crowning” that causes
excessive wear on cutting edges.

ENHANCEPRODUCTION

Loosen material to reduce grading time andfill voids while saving on edge wear.

EXTEND
VERSATILITY

Reduce need for dozer ripping or cuttingbit systems.

MOTOR GRADERS 19

RIPPER-SCARIFIER COMPONENTS
Scarifiers can be mounted before the blade (V-Block design) or behind the machine (Straight Blockdesign). Rear-mounted ripper-scarifiers are more versatile than forward-mounted configurations.
Rip or scarify by changing shank position.

V-BLOCK» Loosen compacted surfaces, rocky subgrades and frozen ground» Fit ahead of the blade (mid mount)» Holds up to 11 shanks and scarifies up to 46” (1168 mm) wide

STRAIGHT BLOCK» Low-impact applications and shallow scarifying» Higher allowable speed (up to 3rd gear) in shallow» Holds up to 17 shanks and scarifies up to 72” (1828 mm) wide» May be used as a mid-mount scarifier

SCARIFIER TIPS
» We offer three types of scarifier tips for surface reconditioning.
Tip has a tapered design that secures it to the shank» Through-hardened tips for general purpose scarifying» Heavy-Duty for deep penetration and extended distances» A.R.M. for high-abrasion/low-impact conditions extends tip life 3 to 5 times
over through-hardened

SCARIFIER SHANKS» Through-hardened and tempered to resist wear, bending and breakage» Front or rear notch for V-Block or Straight Block» Standard or extended lengths

20 MOTOR GRADERS

R SERIES RIPPER TIP OPTIONS
Caterpillar offers three options for the R350 ripper tip size class for 16M and 24M motor
graders. Due to the extreme nature of maintaining haul roads, scarifiers are not offeredon 16M and 24M.

CENTERLINE tips have equal wear material on bothsides and can be reversed, which can extend the lifeand help maintain sharpness.

PENETRATION ripper tips have an aggressive angle
to break through even the hardest surfaces and dig
into the ground more effectively.

PENETRATION - SHARP tips are an intermediate length.
They come factory sharpened to ensure maximum penetration.

MOTOR GRADERS 21

INSTALLATION & REMOVALThe R Series Tooth system uses the standard pin and retainer system. The Tooth
Pin Remover tool is available to make removal easier.

1

Place the tool on the tip and alignthe extractor with the pin.

22 MOTOR GRADERS

2

Strike the tool with a hammer
until the pin is removed.

MOTOR GRADERS 23

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