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Master holder and Stone support Portable high precision Honers with

for COLMER manual expansion mod R.G.V.
Diameter range: 3,8 ÷ 15,7 mm

Extension stone-holder Extension stone-holder
and shoes type "N" and shoes type "NN"

CAR S.r.l. has projected and
manufactured a new extremely
Stone set "R7" Stone set "R7" versatile and relatively cheap
tool specificly studied for honing
of bores on particularly bulky
and/or heavy pieces. With
Steadiness rotation support this system becomes very
type "S" convenient for valve guides

honing on the last generation
EXPANSION SYSTEM “N” AND “S” TO HONE DIAMETER OVER 139 MM engines: in fact, they have valves
with stems of diameter lower
Picture Code Description
than 4 mm, and it prevents the
N 90 Extension stone-holder and shoes ø 115 ÷ 175 mm use of traditional systems such
N 100 Extension stone-holder and shoes ø 165 ÷ 225 mm
N 110 Extension stone-holder and shoes ø 215 ÷ 300 mm as fix or expansion reamers.
N 120 Extension stone-holder and shoes ø 280 ÷ 380 mm R.G.V. is also very fit in other
N 130 Extension stone-holder and shoes ø 360 ÷ 450 mm application fields such as molds
N 140 Extension stone-holder and shoes ø 435 ÷ 500 mm
extractors working, honing of
S 500 Steadiness rotation support ø 165 ÷ 225 mm bores on machines tool, etc…
S 600 Steadiness rotation support ø 215 ÷ 300 mm It is made up of one pneumatic
S 700 Steadiness rotation support ø 280 ÷ 380 mm
S 800 Steadiness rotation support ø 360 ÷ 450 mm mandrel-holder on which can be
S 900 Steadiness rotation support ø 435 ÷ 500 mm assembled different mandrels
each one with a range of
R7 Set stones and guides ø 115 ÷ 500 mm specific honers, relatively to the
diameter to hone.

Series of extension
Series of extension Serie of Rotation
Honing Diameter range stone-holder and shoes
stone-holder and shoes Supports type “S”
double
Ø 115 ÷ 175 mm N 90 NN 90 ---
Ø 165 ÷ 225 mm N 100 NN 100 S 500

Ø 215 ÷ 300 mm N 110 NN 110 S 600
Ø 280 ÷ 380 mm N 120 NN 120 S 700

Ø 360 ÷ 450 mm N 130 NN 130 S 800
Ø 435 ÷ 500 mm N 140 NN 140 S 900

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CAR srl - Italy - tel. (+39) 039.6959161 - fax (+39) 039.6957330 - http://www.carsrl.it - e-mail: info@carsrl.it