6

TECHNICAL DATA

Straight grinder

SG6/750

SG6/1000CE

Rated power

W

750

1000

No load speed

min

-1

27000

12000-27000

Maximum diameter of grinding wheel/disc

mm

25

25

Clip diameter

mm

6

6

Weight according EPTA-Procedure 01/2003

kg

1.4

1.5

The  instructions  contained  in  this  manual  must  be 

strictly followed, it should be carefully read and kept close 

at hand to use when carrying out maintenance on the 

indicated parts.

  If the machine is used carefully and normal 

maintenance is carried out, it will work well for a long time.

The  functions  and  use  of  the  tool  you  have  bought 

shall be only those described in this manual. Any other use 

of the tool is strictly forbidden.

ILLUSTRATIONS

DESCRIPTION (See figures)

A  Start-up switch (Fig.1)

B  Clamping nut (Fig.1)

C  Speed adjustment (Fig.1) (Mod. SG6/1000CE)

EQUIPMENT

-  Clip, 6 mm

-  Fixed spanner 13 mm

-  Fixed spanner 17 mm

-  Operating instructions

-  Safety instructions

-  Warranty

BRIEF DESCRIPTION

This  straight  grinder  has  been  designed  to  dock, 

rough grind or plane metal and stone materials without the 

need for a water supply.

BEFORE USING THIS TOOL

Before using the tool, make sure the mains voltage 

is correct: it must be the same as that on the specification 

label.

DISCS AND WHEELS

WARNING!

 For safety reasons always disconnect 

the machine from the mains before changing the grinding 

wheel.

The discs and wheels must be protected from bangs 

and knocks.

Before starting up the machine, check that the grinding 

wheel is securely clamped (see Fig. 2).

WARNING!

 Use protective goggles while working.

  Do not use wheels of a larger diameter than that 

shown on the specifications plate.

The centrifugal force tends to break the grinding wheel 

as  its  speed  increases.  Said  centrifugal  force  increases 

proportionately to the square of the peripheral speed, thus, 

for example, while the increase in the speed of a wheel in 

going from 30 m/s to 35 m/s is 17%, the increase in the 

centrifugal force is 36%.

Owing  to  the  many  different  shapes  of  grinding 

wheels with shank, the type of bonding and the degree of 

hardness, no exact diameter capacity can be given. For 

example, a cylindrical wheel of diameter 25 and height 19, 

with ceramic bonding, allows a speed of 35,100 r.p.m. yet 

the same diameter with height 50 only allows a maximum 

speed of 15,900 r.p.m. The values shown in table 1 are 

approximate for general operations.

For special applications it is always best to consult the 

manufacturer. It is advisable to insert the shank as far as 

possible inside the clamp in order to avoid any bending or 

possible vibrating of the grinding wheel.

MOUNTING GRINDING DISCS AND WHEELS

WARNING!

 For safety reasons, the machine should 

always be unplugged from the mains before changing the 

disc or wheel.

To mount the grinding wheel, insert the clip into the 

machine’s clip-holder shaft, insert the grinding wheel with 

the shaft in the clip and turn the nut with a 17-mm spanner, 

while holding the nut in place with a 13-mm spanner.

The grinding wheel is dismounted by carrying out this 

procedure in reverse order.

PRECAUTION.

  The  clip  securing  nut  must  not  be 

tightened unless a grinding wheel has been inserted into 

the clip.

Protect discs and wheels from knocks and blows.

STARTING THE TOOL

WARNING!

 Check that the mains voltage is the same 

as that in the machine’s specifications.

Plug the machine in with the switch off.

Start the machine by turning the switch to position 1 

(«ON»). To switch off, do the same in reverse.

Speed adjustments (Mod. SG6/1000CE)

The built-in module permits:

-  Soft start.

-  The maintenance of a practically constant rated speed 

up to rated power.

The control electronics allow continuous pre-setting of 

the revolutions to adapt the machine to the type of material 

to  be  worked  on.  Adjustment  is  made  using  the  speed 

adjustment switch C, which has 6 positions to regulate the 

speed.

SPECIFICATIONS AND APPLICATIONS OF TABLE 1

Grinding wheel (A)

 Abrasive:

Corundum: suitable for steels and steel alloys.

Silicon  carbide:  cast  iron,  light  metals,  hard  metal, 

building materials.

 Hardness:

Soft: hard materials, smooth surfaces, more intense 

roughing, fine polishing.

Hard:  soft  materials,  rough,  sharp  surfaces,  less 

intense and longer lasting roughing, high quality surface.

Hard Metal Milling Cutter (B)

Rough  toothing:  stainless  steel,  steel  alloys,  light