KEEL CUTTER
N600LRCU

Op era ti on Manual
NAKANO CUTTER LIMITEDThank you for choosing our Keel Cutter. This operation manual
offers procedures and precautions for safety use. Please read andunderstand this manual before use.
(Incorrect use may cause injury.)※ Descriptions in this manual may be changed without prior notice.

Table of contents

1

Prohibitions and precautions …………………………………………………… 1

2

Keel Cutter N600 …………………………………………………………………… 2

3

Necessary parts and accessories ……………………………………………… 2

4

Procedures for cutting pipe ……………………………………………………… 3

5Speciﬁcations of Keel Cutter N600LRCU (with hydraulic unit) ………… 5

1

Speciﬁcations …………………………………………………………………… 52

Supplied accessories ………………………………………………………… 6

3

Optional accessories (blades) ……………………………………………… 7

4

Optional accessories ………………………………………………………… 7

5

Name of main components ………………………………………………… 8

6

Guide Ring ……………………………………………………………………… 9

7

Guide ring components ……………………………………………………… 98

Attaching guide ring …………………………………………………………… 10

9

Attaching spray unit …………………………………………………………… 11

10

Checking and ﬁtting V-belts ………………………………………………… 12

11

Blades …………………………………………………………………………… 13

12

Blade and related parts necessary for cutting …………………………… 14

13

Checking before attaching machine on the pipe ………………………… 14

14

Attaching machine on pipe

15

Attaching guiding unit ………………………………………………………… 16

16

Attaching chains ……………………………………………………………… 17

17

Attaching driven shaft assy and hook shaft assy

18

Connecting machine and hydraulic motor ………………………………… 19………………………………………………… 15……………………… 17

19

Checking before starting the engine ……………………………………… 19

20

Checking before starting hydraulic unit………………………………… 20

21

Connecting hydraulic unit and hydraulic hose …………………………… 21

22

Starting hydraulic unit ………………………………………………………… 22

23

Spraying water ………………………………………………………………… 24

24

Starting machine ……………………………………………………………… 24

25

Stopping hydraulic unit ……………………………………………………… 26

6

Maintenance ………………………………………………………………………… 27

7

Pipe stands

8

Blades and applicable pipes …………………………………………………… 31

9Minimum working clearance for Keel Cutters ……………………………… 32………………………………………………………………………… 29

1Prohibitions and precautions◆ Prohibitions ◆・Do not let personnel operate the cutter if they don't understand the
instructions in this operation manual.
・Do not touch the blade when it's rotating.
・Sparks may come out from the blade when it's cutting. Do not use thecutter in places with danger of explosion (where flammable gas may
be generated or exist).
◆ Precautions ◆・Wear safety goggles during cutting to protect eyes from cut off dust.
・During operation or immediately after shutdown, the machine and theblade are hot and may cause burns.
・Inspect the machine before use. Clean and grease the machine after
use.
・Please use genuine Keel Cutters parts. Non-genuine parts may cause
failures or early wear in the product. Damages or failures caused by
non-genuine parts may not be covered by warranty.
・Safety instructions given in this operation manual do not represent all
circumstances which may occur.
Great caution must be taken and sufficient safety instructions must be
given to operators and maintenance workers.
・Store the original package box of the machine, blade etc. for use whensending them back for repair or sharpening.
Warning symbols used in this manual:《DANGER》

Indicates a high level risk to the operator andbystanders, if the instruction is not followed.

《WARNING》

Indicates a hazard which, if not avoided, may result ininjury to the operator and bystanders.

《CAUTION》

Indicates a precaution which may affect durability of the
product and work efficiency.

《Caution Hot》

※ Gives additional technical information.

1

KEEL CUTTER N600

２

Keel Cutter N600
N600 was developed to cut ductile iron pipes automatically with high accuracy.

Hydraulic driving type (Keel Cutter N600LRCU)
It has a hydraulic unit as power source.
Using a hydraulic hose of 15 meters, the power source can be placedapart from the cutter machine thus offering stable workability.
This model can cut pipes from φ118 to φ1554mm (outer diameter) with
cutting speed 90 to 110mm/min.

３

Necessary parts and accessories
The following parts and accessories are necessary for cutting pipes (not for
construction work).

Keel Cutter N600LRCU
Hydraulic unit 08E
Select the right blade, cutter holder and cutter holding
plate according to the pipe outer diameter.
Optional parts (see the list of main optional parts)
Main optional parts(1) Guide Rings *necessary
A guide ring is attached to the pipe to keep the cutter on track. Select the rightguide ring according to the nominal pipe diameter.
(2) Pipe Stands (H or L) *to be used if necessary

Pipe stands are used for holding the pipe when it is cut on the ground.
(3) Water tank, 7 or 12 liters *necessary

Used for spraying water to the blade and cooling it during cutting.
(4) Guide Bar *to be used if necessary
For easy checking the length from the guide ring to the cut point.
(5) Wedges *to be used if necessary
For preventing the cutting blade from getting caught in the pipe
KEEL CUTTER N600

2

４Procedures for cutting pipe
STEP 1

Checking necessary parts
・See the previous section (P2)STEP 2

Attaching blade(1) Select a blade of the right size (according to the pipe outer diameter)(P13)(2) Attach the blade to the machine (P13)

STEP 3

Attaching guide ring(1) Select a guide ring of the same diameter as the pipe. (P9)(2) Check where to attach the guide ring (P9)(3) Attach the guide ring (P10)

Setting up machine (P14)・Adjust the guiding unit (P16)

STEP 4

STEP 5Connecting cutter and power source (P19)
・Check the engine before starting (P19)3

KEEL CUTTER N600

STEP 6

Starting engine (P22)・Read the hydraulic unit operation manual beforehand.

STEP 7Lowering blade and running machine (P24)

STEP 8Stopping hydraulic unit and machine (P26)

KEEL CUTTER N600

4

５Specifications of Keel Cutter N600LRCU (with hydraulic unit)

1 Specifications■Cutter machine
Applicable pipe type

Ductile iron, cast iron, steel, Hume concrete pipe

Pipe diameter

φ 118 ～φ 1554mm

Cut depth

Max 54mm (when diamond blade 200x3D is used)

Cut speed

Approx. 70-90mm/min.

Dimensions(H)250mm x (W)528mm x (L)350mm

WeightApprox. 30.5kg

Oil to be used

Idemitsu Super Gear 460 or equivalent■Hydraulic drive unit 08E
Engine speed

Max 7.3kw/4000rpm

Discharge rate

25ℓ /minDimensions(L)830mm x (W)700mm x (H)640mm

WeightApprox. 180kg

Hydraulic oil

Idemitsu Super Hydro 32A 60ℓ

5

KEEL CUTTER N600

2 Supplied accessories
Part No.

Description

Q'tyFirst driven shaft assy (with double driven pulley)

1Second driven shaft assy (with single driven pulley)1

Hook shaft assy

1

Extension chain (also usable for N450)

5

K156

V-belt

C-30

2

K157

V-belt

C-40

2

K158

V-belt

C-45

2

K168

Cutter holder (for cutting)

1

K169

Cutter holder (for grooving)

1

K170

Cutter holder (for cutting and grooving S Ⅱ pipe)

1

K173

Bumper bush (for S Ⅱ pipe)

1

K171

Cutter holding plate (A)

1

K172

Cutter holding plate (B)1Roller bumper 110-2Assy

1Roller bumper 110-3Assy

1Roller bumper 110-4Assy

1

Roller bumper 125-5Assy

1

K167

Guide bar

1

K152

Tool box（YS-350）

1

K159

Crank handle

1

K160

Safety goggles

1

K182

Straw broom

1

K161

Plastic hammer ＃１

1

K162

Adjustable wrench ＃ 200

1

K163

Double head spanner 19x24

1

K164

Hex key ＃ 6

1

K165

Hex key ＃ 8

1

K166

Metal scale

1

Operation manual

1

KEEL CUTTER N600

6

3 Optional accessories (blades)■Diamond Blades (for cutting)
125 × 3S

Cut depth: approx. 16mm (new blade)

150 × 3S

Cut depth: approx. 29mm (new blade)

175 × 3D

Cut depth: approx. 41mm (new blade)

200 × 3D

Cut depth: approx. 54mm (new blade)■HS Tipped Saw Blades
125 × 4.2
140 × 4.2

Steel pipe

4 Optional accessories■Guide Rings
Description
Guide Rings

According to pipe OD

For φ300■Water Tanks
Description
Water Tanks

7 litre or 12 litres

7Ｌ■Pipe Stands
Description
Pipe Stands(H) type: for pipe OD φ93- φ733mm(L) type: for pipe OD φ118- φ1554mm

Pipe Stand (H)(with rubber wheel assy x 2)
7

KEEL CUTTER N600

5 Name of main components
Guide roller（Ｋ111）
Guide ring (optional)

Guiding unit

V-beltOilholeHook shaft assy

Second driven
shaft assy

K8 Blade coverHole for cock lever
ClutchBlade lowering unit

Hydraulic motor

First driven
shaft assy

Ｋ８９ Oil check window

Hydraulic hose

K9 Drive shaft pulley

Driven shaft pulley

Hydraulic unit

Hydraulic unit
(Engine type)

KEEL CUTTER N600

8

6 Guide Ring
■Check the cutting point and where to attach the guide ring.

cutting point
392mm

guide ring

7 Guide ring components

Tightening screw
K262 or D021

Nut M12 (K267)
Plain washer M12 (D022)(For φ733mm or larger, use K261 nut receiver)

Caulking pin (K266)

Roll pin
φ8×24（K269）
Hex socket head bolt
M8×35（K264）

9Supporting part
(K270)KEEL CUTTER N600

8 Attaching guide ring
１

■Open the guide ring and attach it
around the pipe

•Be
f
ore a
t
t
ach
i
ngthe guidering,move upthe hex bolts M8x35sot
hey don't touch
t
he p
i
pe.

２

■Fit the tightening screw in the slot
and fasten the nut
Slot３■Temporarily fasten the M8x35 bolts
evenly•Attach the guide ring atarightang
l
e
tot
he p
i
pe.

４

■Check the position•I
fthe gu
ide r
i
ngi
s di
spl
aced,adjustit by h
i
t
t
i
ng wi
th
p
l
as
t
i
c hammer(do notuse ani
ron hammer).

５■Fasten the bolts evenly on thecircumference•Ensure the guide r
ing doesn't getdisplaced wh
i
l
ef
as
ten
i
ngthe bolts.

KEEL CUTTER N600

10

9 Attaching spray unit
※ It is necessary to spray water on diamond blades.

１２■Water feed assembly (a set of 7components) from the water tank
(optional) is necessary.

■Fit the water feed assembly•Fitthe assembl
y to the hol
ein the blade cover as shown
be
l
ow.
l
y so thatt
he spray portf
acesthe d
i
amond
•Adj
us
tthe assemb
b
l
ade.

Flat washer
Spring washer
Wing bolt M10Blade cover
Nut M10

Male coupler

Cock lever

11

KEEL CUTTER N600

⓾ Checking and fitting V-belts■Keel Cutter N600LRCU includes V-belts of 3 sizes; C-30 (K156), C-40
(K157) and C-45 (K158) as standard accessories (2 x each size). Selectthe right belts according to the pipe diameter.
Nominal diameter

Size of V-belt

Q'ty

φ 118 ～φ 322mm

C-30

2

φ 323 ～φ 733mm

C-40

2

φ 734 ～φ 1554mm

C-40, C-45

2 each■Fit the V-belts

１■Fit V-belts of the right size on thedrive pulleys on the cutter shaft
side.

２

KEEL CUTTER N600

■Remove two hex bolts M12 x 30
(K125) fixing the bracket on theguiding unit side, then fit V-belts on
the drive pulleys.

12⓫ Blades■Selection of blade
Select the diamond blade according to the thickness and outer
diameter of the pipe.
Pipe thickness 16mm or less, pipe ODφ118mm～φ630mm: 125 x 3S

Pipe thickness 29mm or less, pipe ODφ169mm～φ1041mm: 150 x 3S
Pipe thickness 41.5mm or less, pipe ODφ374mm～φ1144mm: 175 x 3D
Pipe thickness 54mm or less, pipe ODφ733mm～φ1554mm: 200 x 3D

■Attach the blade

・After checking the rotational
direction and the order of fitting
the blade and related parts, attach
the blade securely using adjustablewrench and single head spanner
24mm.

《Caution》
Direction of blade rotation
・Cutting blade (diamond blade) has a specified rotational direction.
The direction is marked on the blade as shown below.
※It rotates counterclockwise.

・If the blade is attached for the wrong direction, not only the blade
doesn't cut, but it will be destroyed and cause troubles.
Ensure the nut is securely fastened to fix the blade. It is very
dangerous if it gets loose during rotation,
13

KEEL CUTTER N600

⓬ Blade and related parts necessary for cutting■The following parts are necessary.
Part No.

①

K168

②

Description

Q'ty

Cutter holder (for cutting)1

Diamond blade

1

③

K171

Cutter holding plate (A)

1

④

K129

Hex nut M16

1■Order of fitting•Fit the parts in the order of ① to ④ onto the shaft, and tighten the
nut tightly.

Cutter shaft

④

③ ②

①

※Estimation of cut depth(whenthe blade new):Cut depth＝redius of diamond blabe-46⓭ Checking before attaching machine on the pipe
■Ensure the following two points before attaching the machineon the pipe.
•Checktha
tt
he b
l
adel
ower
i
ng un
i
t(sc
rew t
ype)i
se
l
eva
ted.

※If it's lowered, the blade may touch the pipe.
KEEL CUTTER N600

14・Slightly loosen the nut on the outer roller shaft of the guiding unit withwrench (24mm).

※If the nut is tightened, the guiding unit may not fit on the guide ring.

⓮ Attaching machine on pipe・Clean the pipe you are going to cut. If it is oily, the cutter may beslipped.
・Hold the guide ring between rollers of the guiding unit.

・Check that the V-belt fit in the groove of the drive pulley (on bothsides).

・Check that the blade doesn't touch the pipe. If it does, move up theblade before starting the machine.
・Check that two drive pulleys (on the belt) and the two wheels contact
the pipe.

15

KEEL CUTTER N600

⓯ Attaching guiding unit
１

Roller shaft■Adjust the angle of the roller shaft

Bolts•Loosen the two bolts,and fasten
them tight
ly when the roller shaftisali
gnedtothe pipe center.

２

Guide ringWheel

M16 nut■Adjust the inner guide roller•Push the two inner guide rollers(onthe machine side)againstthe gu
ide
r
i
ng.

Guide roller

３

M6 adjustingbolt/nut

Drive pulley
Roller shaft

４

Bolts

Guide ringWheel

M16 nut

Guide roller

Drive pulley■Adjust the outer guide roller•Tighten the adjusting bolt untilthe
outer gu
i
de ro
l
l
er contacts the gu
i
de
r
i
ng.

■Fix the M16 and M6 nuts•Fix the M16 nut ofthe outerrol
ler
sha
f
t,then fix the M6 adjus
t
i
ng bo
l
t
wi
t
hthe nut.

M6 adjustingbolt/nut※You don't need to do this adjustment everytime,but makesure thatthe four gu
i
de ro
l
l
er
sa
lways contac
tthe gu
i
de r
i
ng.
Otherwi
se,t
he cu
tl
i
ne may not meetthe s
t
a
r
t
i
ng po
i
n
t.

KEEL CUTTER N600

16

⓰ Attaching chains■Number of extension chains

・Keel Cutter N600LRCU includes 5 x extension chain.
The number of extension chains used varies depending on the pipe
diameter.
Nominal diameter
Number of chainsφ118～φ528mm

1

φ529～φ733mm

2

φ734～φ1041mm

3

φ1042～φ1246mm

4

φ1247～φ1554mm

5■Attach the extension chains・Connect the hook of the extension chain to the chain attached tothe machine.

⓱ Attaching driven shaft assy and hook shaft assy
１

■Set the driven shaft assy and hook
assy.
•Adj
us
tthel
ong screw wi
th a
i
ghten
i
ng ma
r
g
i
n.
su
f
f
i
c
i
entt

２

■Connect the chains•Connectthe chains onthe hook ofiven shaftassy.
t
he dr

17

KEEL CUTTER N600

３
■Tighten the belts•Fitthe crank handl
e to the end of
the long screw and s
l
i
ght
l
yt
i
ghten
the belts.

《Important Caution》
・During cutting or setting up the machine, adjust thedrive pulley, driven pulley, V-belts and chains sothat they always stay in parallel to the guide ring.
V-beltAdjustment long screw

Drive shaft pulley
Driven shaft pulley

(main
body)

Guide Ring
Chain attached to the machineor extension chain

KEEL CUTTER N600

The distance from the guidering to the drive shaft pulleyshould be the same as the
distance from the guide ringto the driven shaft pulley.

18

⓲ Connecting machine and hydraulic motor
１■Take off the cap of the hydraulicmotor•Use the hydrau
lic motorincluded inthe hydr
au
l
i
c un
i
t.

２
■Check that the hydraulic motor has
a connection metal fitting.

３■Connect the hydraulic motor to themachine•Tightenthe bolt(sockethead,M8x25)usingthe hex wrench #6(K164)inc
ludedi
nthe product.

⓳ Checking before starting the engine
１■Check the fuel tank

•Add gasoli
nei
fnecessary.

19

KEEL CUTTER N600

２

■Check if the air cleaner is clean
・Clean or replace it if necessary.

MaintenanceEvery 50 hours

Engine oil change○※

Air cleaner cleaning○

Every 200 hours○

Fuel strainer cleaning
Spark plug cleaning○※Change engine oil at 25 hours for the first time.
※Add engine oil if necessary. Idemitsu's "Pro-mente SJ/CF-4 10W-30"
or equivalent oil should be used.

Drain the gasoline completely if the engine is not used for along time.
Thoroughly read Engine Operation Manual before using theengine.

⓴ Checking before starting hydraulic unit
■Check the hydraulic oil•Check the oilleve
l gauge on thehydraulic oi
ltank.The oi
llevelshou
ld come between H and L.

■Add hydraulic oil•If necessar
y,remove the cap f
rom
t
het
ank and add hydr
au
l
i
co
i
l.

•"
I
demi
t
su Super Hydro 32A" orequ
i
va
l
ento
i
lshou
l
d
be used.
KEEL CUTTER N600

20

A black rubber packing is fitted inside the oil cap to prevent oilleakage during transportation. Make sure to remove the packing
before using the machine.

Rubber packing

Flower shape cap(with the packing)

Ensure no contaminants get in when filling the tank.
The hydraulic unit must be placed in the flattest placepossible. (maximum inclination angle: 15 degrees)
Move the clutch to the "Stop".
Stop

ClutchRun

Main Body
Moving direction㉑ Connecting hydraulic unit and hydraulic hose
■Connect the couplers of the hydraulicunit and the hydraulic hose.
・After connecting the couplers, slide
the outer part of the female coupler
to prevent the couplers from being
disconnected.
Male Female coupler

Make sure the couplers are clean.
21

KEEL CUTTER N600

㉒ Starting hydraulic unit
１
■Turn on the engine switch

２■Open the cock lever
Open
Close

【Close】 cock lever【Open】

3■Start the engine

・Confirm safety before starting theengineKEEL CUTTER N600

22

4
OFF

Switch leverON

Oil pressure gauge■Warm-up operation

・Keep the clutch of the main body at "Stop",then move the switch lever to "ON" andperform warm-up operation for 10-15
minutes.
Stop

Switchingvalve

ClutchOil ﬂow

Run

Main bodyMoving direction※If the oil temperature is low, performance of the hydraulic motor
will be degraded, causing pressure rise.
When you are going to move the switch lever to "ON", makesure the blade doesn't touch the pipe, and warn the workers fortheir safety.

5■Break-in operation•Movethe clutchto "Run" position andrunthe mach
i
ne
thou
tl
ower
i
ngthe blade.
200-300mm wi
formi
ng break-in operat
ion,you can preventthe cutter※By perfrom be
i
ng dr
i
ven o
f
fi
t
st
r
ack.The V-be
l
t
sa
rel
oosened a
f
t
ert
he
break-in operation,sorei
ghtent
he be
l
t
sa
f
t
ert
he operation.

《Important Caution》
・During cutting or setting up the machine, the drive pulley,
driven pulley, V-belts and chains must be always adjusted
so that they are positioned in parallel to the guide ring.
V-beltAdjusting long screw

Drive shaft pulley
Driven shaft pulley

(main
body)

Guide Ring
Chain attached to the machineor extension chain

The distance between the drive shaft pulley and theguide ring should be the same as the distance
between the driven shaft pulley and the guide ring.

23

KEEL CUTTER N600

㉓ Spraying water■Open the cock lever and spray water on the blade.

㉔ Starting machine
１■Lower the blade•Attach the crank handle to the blade
rew,then turn the hand
l
e
l
ower
i
ng sc
counterc
lockwise to lowerthe bladeand cutthroughthe p
i
pe wa
l
l.
Wing bolt M10x20

・Lower the pipe until the cut is through the inner pipe wall, andtighten the wing bolt M10x20 to keep the blade from being
lifted up.
Do not touch the rotating parts.
Wear safety goggles during cutting to protect eyes from cut off
dust.

2

Stop

■Move the clutch to run the cutter
ClutchRun

Main Body
Moving direction

During cutting, check if the belts are tight and the cutter is runningon the right track.
KEEL CUTTER N600

24

３■Complete the cut
・The cutter machine runs around the pipe and complete cutting.
・After the cutting is done, move the clutch to "Stop" position tostop the run, then lift up the blade by turning the crank handle.

《Caution》
In case of cutting buried pipe, thediamond blade may get caught inthe cut pipe as the cutting comesto the end, causing damage tothe blade. To prevent this, drivein wedges before and after theblade.

25

blade
wedge

KEEL CUTTER N600

㉕ Stopping hydraulic unit
１
OFF

Switch leverON■After cutting, move the switch
lever to "OFF" position.

Oil pressure gauge

Switchingvalve

Oil ﬂow

Before turning off the switch lever, make sure the diamondblade is off the pipe.

２■Slow down and stop the engine.
•Be
f
ore s
topp
i
ng,be surethe b
l
adei
so
f
fthe pipe.
A backfire (small explosion) may occur right after the engine isstopped but this is no problem.

３■Check the blade has stopped completely.
The blade and the rotating parts are still hot immediately after
operation.

KEEL CUTTER N600

26

6Maintenance■Main body of the cutter•Aftereach use,wash away cutoffdus
tand d
i
r
t wi
th wa
t
er,
  
thenl
ubr
i
ca
t
et
herot
a
t
i
ng pa
r
t
s.

Lubrication points

①

⑦
⑤

②
③
④

⑥

•Check the oil.Therei
s su
f
f
i
c
i
ent o
i
li
fyou can see the oilthroughilcheck wi
ndow whent
he mach
i
nei
s hor
i
zont
a
l.
the o
I
fi
t
's not suf
fici
ent,remove the oi
l hole wi
th hex wrench #8fillthe oil.I
demitsu Supergear 460 or equ
i
va
l
ent o
i
l
(K165)and reshould be used.

■Roller chains①Before each use, check that the rotating parts rotate smoothly andthe chains are not deformed.
②After each use, clean cut off dust and dirt completely and apply rustproof oil.

■V-belts•If cut off dust remains on the belt after use, its durability will be
deteriorated.

27

KEEL CUTTER N600

■Replace the belt if:
・It is torn or frayed.
・It goes below the edge of the pulley wheel when it is tightened. (Ifthe machine is run with the belt staying below the edge of the pulleywheel, the belt will touch the bottom of the pulley wheel and the drive
force will not be transmitted.)

Edge of pulley wheel

V-beltBottom■Blades (Diamond blades)①After each use, wash away cut off dust and dirt with water. If theyremain on the blade, durability of the belts will be deteriorated.
②Check if the tips are broken or worn out, or if the base of the blade
is deformed. If there is any, do not use the blade.

■Engine・The following maintenance is required.
Engine maintenanceEvery 50 hours Every 200 hours Every 300 hours

Eng ine oi l change○※

Air cleaner cleaning○○

Fuel strainer cleaning
Spark plug cleaning○

Hydraulic oil change○

Hydraulic tank cleaning○※For the first time, change at 25 hours.

Drain the gasoline completely if the engine is not used for along time.

KEEL CUTTER N600

28

7
１

Pipe stands■How to use pipe stands
•P
i
pe s
t
ands are used whenthe pipeis cutonthe ground.
●Usi
ng 3 pi
pe stands•Use one each stand at both ends of the pipe, and use one
stand under the cut. After the pipe is cut, two pieces of cut
pipe will sit on the middle stand.
Cut

●Us
i
ng 4 pi
pe stands•Use one each stand at both ends of the pipe, and one each atboth sides of the cut (the stands should not get in the way of
attaching the machine and cutting the pipe).
Cut

Use the pipe stands at a flat place. Do not use them on a slope.

29

KEEL CUTTER N600

２■Types of stand and applicable diameter
•App
l
i
cab
l
ep
i
pe d
i
amet
er

Diameter
Pipe stand (H)φ93～φ733mm

Pipe stand (L)φ118～φ1554mm

•Pos
i
t
i
on o
f wheelsPipe stand(H)

Rubber wheel

φ322〜φ733mm
φ93〜φ321mm

Pipe stand main
body

※E
i
t
herrubberoralumi
num wheels may be usedi
n(H)t
ype.
P
i
pe s
tand(L)

Aluminum wheel

φ528〜φ1554mm
φ374〜φ527mm
φ220〜φ373mm
φ118〜φ219mm《Important Caution》
Fit the wheels at the right place so that pipe is firmly supported.
Unstable pipe may cause accidents. Gently put the pipe on thepipe stands so the wheels won't come off.

KEEL CUTTER N600

30

8Blades and applicable pipes
Diamond blade

Tipped Saw
BladeSpray water

Ductile iron pipe○△

Necessary

Cast iron pipe○○

Necessary

Hume pipe○

×

Necessary

Electric pole○×

Necessary

Concrete pile○×

Necessary(needs extra)

Steel pipe

×○

Necessary

Polyvinyl chloride
pipe

×

○

Necessary※△If a tipped saw blade is used for cutting ductile iron pipe, it's
not possible to cut concrete part of the pipe.

Cutting steel pipes①Special size guide ring may be necessary depending on
the pipe diameter.

②The machine may not be able to cut some steel pipes(depending on the diameter and wall thickness of thepipe).

31

KEEL CUTTER N600

9Minimum working clearance for Keel Cutters
（mm）
Model

Ｌ１

Ｌ２

Ｌ３

250～300

610～760

80～230

Ｎ600ＬＲＣU

250

470

58

N450 with hydraulic unit

200

470

52

Ｎ2600

L3

L1

KEEL CUTTER N600

32

L2