SUHNER ABRASIVE MINIfix 25-R Documentación Técnica página 5

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lows:
1. Soft start
2. With increased work pressure more current is drawn,
whichb virtually holds speed at a constant rpm.
3. If the motor is overloaded, the electronic cuts off the power.
In this event switch at once to OFF position, restart right away
to assure cooling effect in no load mode. Repeated automatic
cut off indicates, tool is being overloaded.
4. Caution: Electrical surges and high frequency interference
may cause RPM fluctuations up to 30% which will disappear
as soon as power source conditions stabilize. Due to
electromagnetic interference at a lower speed range the
drive motor may shut-off prematurly. In this case, activate
on/off switch and restart.
MINIfix 25 R
Note:
Never use MINIfix 25R in conjunction with another speed
control device (foot pedal or table mount).
Otherwise built-in electronic variable speed control can no
longer function as intented.
3.
Operation conditions and instructions for
5
• MINIfix 28
Operating without a speed control
Attention
Only use tools / abrasivs which can be operated at max.
operating speed of the machine.
Operates as follows
1. Machine runs at max. operating speed.
2. With increased work pressure more current is drawn.
3. Thus don't force the tool in order not to increase unnecesarily
excessive current draw, which overheads the motor.
• MINIfix 28
Operating with a speed control (foot pedal or table mount)
If Minifix 28 is used in conjunction with a individual speed
control unit, please refer to the respective operating manual.
4.
Accessories
0
Toolholder maintenance: General
• See respective spare parts list for wear parts.
• Clean off grinding dust daily.
• Do not immerse in liquid.
• Bearings are greased for life.
• Change gear grease every 12 months. Your SUHNER Service
Centre can perform this work quickly and efficiently.
Change of tools / abrasives: General
• Unplug power supply before each tool change.
• Clean clamp fitting before mounting.
• Ensure flawless runout and only use low-vibration tools. It is
essential that you take note of the permissible speed in this
context.
4.
FH 4 Straight toolholder
1
Tool connection
Type
Collets up to
Weight
Permissible operating speed up to 40' 000 RPM
For flexible shaftType
Machine elements
1 Retention hole
3 Wrench 14mm
2 Spindle
4 Collet
Suitable Tools
see Fig. C
G16 = ø 22 mm
ø 8 mm see catalogue
0.30 kg
NA 4 DIN 10 / G16
5 Clamping nut
6 Burs, specialty abrasives, materials conditioning products
7 Mounted points,
Attention: always observe mounting instructions.
Tool change
• Hold spindle 2 with wrench 3, release or tighten clamping
nut 5 with wrench 3.
4.
WI 4 Right angle toolholder
2
Gear transmission ratio approx.
Tool connection
Collets
Weight
Permissible operating speed up to
Permissible operating speed up to
For flexible shaft
Machine elements
1 Spindle
2 Wrench 10 mm
Suitable Tools
General: If possible always mount shank in collet 1 until it bottoms
out.
5 Burs, specialty abrasives, materials conditioning products
6 Mounted points
Attention: always observe mounting instructions.
Tool change
• Hold spindle 1 tight with wrench 2.
• Loosen or tighten collet 4 with wrench 3.
Accessories
All accessories can be found in the SUHNER
Tool catalog.
Subject to change.
see Fig. E
i = 1:1
Type
G16 = ø 16 mm
up to
ø 6 mm see catalogue
0.265 kg
15 '000 RPM
(Shank ø 6 mm)
20 '000 RPM
(Shank ø 3 mm)
Type
NA 4 DIN 10 / G16
3 Wrench 11 mm
4 Collet
Abrasive Power
®
5

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