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T ECHNICAL INFORMATION
Models No. 9556PB/ 9557PB/ 9558PB
PRODUCT
P 1 / 12

Description Angle Grinder 100mm /115mm /125mm
(4") / (4-1/2") / (5")
CONCEPT AND MAIN APPLICATIONS
The 9556PB series models are paddle switch version of Makita 840W
class angle grinder 9556NB series which feature extra dust-proofness
and slim design.
With the following features, these 9556PB series models are superior
to Makita currest 9526PB series models:
* Zigzag varnishing on Armature
* Anti-dust varnishing on Field
Dimensions: mm (")
* Labyrinth structures around Bearings
Model No. 9556PB 9557PB 9558PB
* 840W power input, but easy-to-grip slim Housing
* Vent slits designed for reduced dust invasions Length (L) 273 (10-3/4)
AC/DC switch is ready for 9556PB, 9557PB and 9558PB Width (W) 118 (4-5/8) 129 (5-1/8) 139 (5-1/2)
toward North American market. Height (H) 97 (3-13/16) 106 (4-3/16)

Specification
Continuous Rating (W)
Voltage (V) Current (A) Cycle (Hz) Max. Output(W)
Input Output
110 8.0 50 / 60 840 500 1,000
120 7.5 50 / 60 840 500 1,000
220 4.0 50 / 60 840 500 1,000
230 3.8 50 / 60 840 500 1,000
240 3.7 50 / 60 840 500 1,000

Model No. 9556PB 9557PB 9558PB
Diameter 100 (4 ) 115 (4-1/2 ) 125 (5 )
Wheel size
Hole diameter 16 (5/8 ) 22.23 (7/8 ) 22.23 (7/8 )
: mm ( " )
Thickness 6 (1/4)
No load speed : min.-1 = rpm. 11,000 USA and Canada: 10,000
Power supply cord : m ( ft ) 2.5 (8.2) Australia: 2.0 (6.6)
Net weight : kg ( lbs ) 1.6 (3.5)

Standard equipment
9556PB 9557PB 9558PB
Depressed center wheel 100-36 .... 1 Depressed center wheel 115-36 .... 1 Depressed center wheel 125-36 .... 1
Lock nut wrench 20 ...................... 1 Lock nut wrench 28 ...................... 1 Lock nut wrench 35 ...................... 1
Grip 36 complete .......................... 1 Grip 36 complete .......................... 1 Grip 36 complete .......................... 1
Note: The standard equipment for the tool shown above may differ from country to country.

Optional accessories
9556PB 9557PB 9558PB
Depressed center wheel 100-24 Depressed center wheel 115-24 Depressed center wheel 125-24
Depressed center wheel 100-36 Depressed center wheel 115-36 Depressed center wheel 125-36
Rubber pad 76 Rubber pad 100 Rubber pad 115
Sanding lock nut 10-30 Sanding lock nut 14-48 Sanding lock nut 14-48
Assorted 100mm abrasive discs Assorted 115mm abrasive discs Assorted 125mm abrasive discs
Wire cup brush 75 Wire cup brush 90 Wire cup brush 90
Wire bevel brush 85 Super flange 47 Super flange 47
Base assembly Dust collecting wheel guards Dust collecting wheel guards
Wheel cover Dust collecting wheel cover Dust collecting wheel cover
Vacuum attachment set Vacuum attachment set Vacuum attachment set

Note: The optional accessories for the tool shown above may differ from country to country.
P 2 / 12

Features and benefits
* *
Extra Dust-Proof Motor Labyrinth Construction
Armature coated with protective Protects All Ball Bearings
zigzag varnish and Field coated with from Dust and Debris.
powder varnish protect motor from
dust and wire breakage, ensuring
* Rotatable Gear Housing durability enough for masonry cutting.

can be positioned at every
90 degrees to suit most cutting
and grinding operations. *
840W Continuous Rating Input Motor
with High Heat-Resistance Performance
* Shaft Lock leads to the sufficient power in masonry cutting

* Gear Section with
* AC/DC Switch
Increased Reparability
Secondary gear and spindle For North American
are assembled with a woodruff countries only
key. This way allows to repair
the gear section easily.

* Dust-proof Ball Bearing
Paddle Switch
on spindle and the commutator
Suitable size and position
end of armature; a dust-proof
for easy operation right or
washer is also installed on spindle.
left handed

* O Rings for Protection from
Grease-Leakage
placed in the following portions;
*Joint between Gear housing and
Bearing box
*Shaft lock pin installation hole Lock off button (except Australia)
located at the center of paddle lever
* is extremely accessible even if the operator
Small Circumference Barrel Grip touches everywhere on the paddle lever.
for Easy Handling
Use of Type 55 motor enables the circumference Since Competitor A's lock off button is
to be smaller than competitions. And built-in located at the rear side of paddle lever, it is
brush holders as well as Makita 9560 series models a little difficult to operate.
contributes to the flat design without protrusions.

* mark: The same features as 9556NB series angle grinders
P 3 / 12
Comparison of products
[1] Comparison of specifications

100mm (4")
Model No. Makita
Specifications 9556PB 9526PB
Wheel size Diameter 100 ( 4 ) 100 ( 4 )
: mm( " )
Arbor Diameter 16 (5/8) 16 (5/8)
Power Input: W 840 750
Rated amperage in North America: A 7.5
No load speed: min-1= rpm. 11,000 (10,000 for U.S.A.) 11,000 (10,000 for U.S.A.)
AC/DC switch for North America Yes No
Size of gripping portion: mm 59 x 60 56 x 70
( " ) (2-5/16 x 2-3/8) (2-3/16 x 2-3/4)

Circumference of gripping
195 (7-5/8) 190 (7-1/2)
portion: mm (")
Double insulation Yes Yes
Power supply cord: m(ft) 2.5 (8.2) 2.5 (8.2)
Length: mm 273 275
( " ) (10-3/4) (10-7/8)
Width: mm 118 118
Dimensions
( " ) (4-5/8) (4-5/8)
Height: mm 97 111
( " ) (3-13/16) (2-3/8)
Net weight: kg (lbs) 1.6 (3.5) 1.5 (3.3)

115mm (4-1/2")
Model No. Makita A B C
Specifications 9557PB 9527PB A B C
Wheel size Diameter 115(4-1/2) 115(4-1/2) 115(4-1/2) 115(4-1/2) 115(4-1/2)
: mm( " ) Arbor Diameter 22.23(7/8) 22.23(7/8) 22.23(7/8) 22.23(7/8) 22.23(7/8)
Power Input: W 840 750 750
Rated amperage in North America: A 7.5 6.4 7.5 7.5 7.0
No load Other countries 11,000 11,000
11,000 10,000 10,000
speed: min-1= rpm. U.S.A. 10,000 10,000
AC/DC switch for North America Yes No Yes Yes Yes
Size of gripping portion: mm 59x60 56x70 68x68 62x73 69x71
( " ) (2-5/16 x 2-3/8) (2-3/16 x 2-3/4) (2-11/16 x 2-11/16) (2-7/16 x 2-7/8) (2-3/4 x 2-13/16)

Circumference of gripping 195 190 205 208 175
portion: mm (") (7-5/8) (7-1/2) (8-1/8) (8-3/16) (6-7/8)
Double insulation Yes Yes Yes Yes Yes
Power supply cord: m(ft) 2.5 (8.2) 2.5 (8.2) 2.5 (8.2) 2.5 (8.2) 2.5 (8.2)
Length: mm 273 275 292 265 310
( " ) (10-3/4) (10-7/8) (11-1/2) (10-3/8) (12-1/4)
Width: mm 129 129 132 132 138
Dimensions
( " ) (5-1/8) (5-1/8) (5-3/16) (5-3/16) (5-7/16)
Height: mm 106 111 104 98 117
( " ) (4-3/16) (4-3/8) (4-1/8) (3-7/8) (4-5/8)

Net weight: kg (lbs) 1.6 (3.5) 1.5 (3.3) 1.9 (4.2) 2.0 (4.4) 2.2 (4.9)
P 4 / 12
Comparison of products
[1] Comparison of specifications

125mm (5")
Model No. Makita A C
Specifications 9558PB 9528PB D E
Wheel size Diameter 125 ( 5 ) 125 ( 5 ) 125 ( 5 ) 125 ( 5 )
: mm( " ) 22.23 (7/8) 22.23 (7/8) 22.23 (7/8) 22.23 (7/8)
Arbor Diameter
Power Input: W 840 750 750
Rated amperage in North America: A 7.5 6.4 8.5 7.0
No load Other countries 11,000 11,000
11,000 9,000
speed: min-1= rpm. U.S.A. 10,000 10,000
AC/DC switch for North America Yes No Yes Yes
Size of gripping portion: mm 59 x 60 56 x 70 68x68 69x71
( " ) (2-5/16 x 2-3/8) (2-3/16 x 2-3/4) (2-11/16 x 2-11/16) (2-3/4 x 2-13/16)

Circumference of gripping 195 190 205 175
portion: mm (") (7-5/8) (7-1/2) (8-1/8) (6-7/8)
Double insulation Yes Yes Yes Yes
Power supply cord: m(ft) 2.5 (8.2) 2.5 (8.2) 2.5 (8.2) 2.5 (8.2)
Length: mm 273 275 304 310
( " ) (10-3/4) (10-7/8) (12) (12-1/4)
Width: mm 139 139 141 138
Dimensions
( " ) (5-1/2) (5-1/2) (5-9/16) (5-7/16)
Height: mm 106 111 104 117
( " ) (4-13/16) (4-3/8) (4-1/8) (4-5/8)
Net weight: kg (lbs) 1.6(3.5) 1.5(3.3) 2.1(4.6) 2.8(6.2)
P 5 / 12
Comparison of products

[2] Cutting/Grinding Performance
Note: 1. Numbers in the graphs below are relative values when the cutting speed of Competitor A's Model A
is indexed at 100.
2. The test results depend to a great extent on the hardness of the material, etc.
3. The specifications of the test machines: U.S.A. specifications
1) Efficiency of concrete cutting 2) Efficiency of metal grinding
Test conditions: Cut concrete to depth of 20mm. Test conditions: Ground a steel
plate continuously
for 10 minutes.

Makita
9557PB 105 110
Makita
9527PB
90 95

Model A 100 100

Model B 90 85

Model C 100 105

Opinions
* Model B: Inferior to 9557PB in the following points
1. Efficiency of cut work
2. Fitting in hand, when gripping paddle lever portion.
3. Stability when the wheel touches material in grinding work (The reaction is bigger than 9557PB.)
* Model C: Inferior to 9557PB in the following points
1. Stability when the wheel touches material in grinding work (The reaction is bigger than 9557PB.)

[3] Cutting/Grinding Performance
Note: 1. Numbers in the graphs below are relative values when the cutting speed of Competitor C's Model C
is indexed at 100.
2. The test results depend to a great extent on the hardness of the material, etc.
3. The specifications of the test machines: European specifications
1) Efficiency of concrete cutting 2) Efficiency of metal grinding
Test conditions: Cut concrete to depths of 20mm. Test conditions: Ground a steel
plate continuously
for 10 minutes.

Makita
110 125
9557PB

Makita 100 105
9527PB

Model C 100 100
P 6 /12
Comparison of products

[4] Comparison in Heat Resistance
Test condition:
We compared the heat-resistance of 9557PB with that of Model A and Model B as follows:
Cut across 600mm width concrete plates at a cutting depth of 10mm with the same 115mm (4-1/2") diamond wheel
and measured the temperature rise in the motor field during the continuous operation.

Temperature Rise in Field during Cut Work

80