6
En lugares situados en una gran altitud, se reducen las
prestaciones de la unidad.
No utilizar la unidad para levantar objetos. No des-
montar la unidad.
16. GARANTÍA
Todas los productos VIRUTEX, tienen una garantía
válida de 12 meses a partir del día de su suministro,
quedando excluidas todas las manipulaciones o daños
ocasionados por manejos inadecuados o por desgaste
natural de la máquina.
Para cualquier reparación dirigirse al Servicio de Asis
-
tencia VIRUTEX.
VIRUTEX se reserva el derecho de modificar sus productos
sin previo aviso.
E N G L I S H
SVN250 VACUUM CLAMPING SYSTEM
1. DESCRIPTION
Read this instruction manual carefully
and keep it in a suitable place close by
the device.
Read the safety instructions and the
whole of the operating manual carefully
before using the
device. Keep all the enclosed documents
and always forward them together with
the device.
The SVN250 vacuum clamping system is intended for
use as a holding mechanism for parts with at least
one flat side. It has no moving parts and is powered
by compressed air. Suitable for wood, plastic, glass,
aluminium, etc.
2. SPECIFICATIONS
Holding force..................................................800 gr/cm
2
at 6 bar
Vacuum surface area..............................................150 x 150 mm
Working pressure..........................................................5.5 - 7 bar
Air flow needed at 5.5 bars..........................................28 l/min
Dimensions.....................................................160 x 22 x 200 mm
Weight...............................................................................325 gr
3. UNPACK AND CHECK
Inside the box you will find the following:
• SVN250 unit with a rubber seal, a transparent air
supply line and a 3 piece spare rubber seal.
• The SNV250 unit is equipped with a quick fit (1/4" BSP)
connector. The open end of the supply line should be
pushed firmly into the connector, until it stops (Fig. 1).
To check correct installation pull gently on the line. A
properly installed airline cannot be pulled out.
• Care should be taken to prevent the black collar from
being depressed while the clamp is in use. This will cause
the air hose to release immediately. The air hose will flail
and may cause injury.
4. BOLTING DOWN
• The SVN250 needs to be bolted to a workbench or
work column. For best results the bench or column
needs to be as rigid as possible. Excessive work piece
vibration could, in extreme cases, cause the clamp to
let go of the work.
The four bolting points will accept a M6 or 1/4" screws
(Fig. 2).
• The unit does tolerate quite a bit of unevenness in
a work piece, but needs a flat support surface for best
results.
5. AIR SUPPLY
• The "quick fit" 1/4” bsp fitting, on the transparent air
supply line, is a very common thread form for valves.
Most on/off valves and "snap on" fittings will have this
thread form.
• We recommend that an on/off valve be used with
this unit, and that the valve be fixed firmly in place.
VIRUTEX can supply an appropriate valve if required.
(See accessories list).
• Air supply must be between 5.5 bar and 7 bar (600 to
700 kPa). Exceeding 8 bar (800 kPa) could damage the
unit and be potentially dangerous.
• Less than 5.5 bar (600 kPa) will give reduced holding
power.
• Air supply needs to be clean. Oil or dust in the air supply
will block internal parts within the clamp and reduce
the holding force. Small amounts of water condensate
will not adversely affect the clamp.
• A small compressor can be used, because the unit uses
only 28 litres of air per minute at 5.5 bar. A lower air
pressure will also use less air. The compressed air should
be coming from a tank so the air is not pulsed.
6. RUBBER SEAL
• The seal installed into the unit has been performance
tested and is ready for use. If you need to re-install the
seal, please note the oval shape of the rubber. Do not
twist the seal prior to installing. Twisting will result in
a poor or nonexistent seal.
• Different shaped, and quite small, work pieces can be
held by moving the rubber seal to the required size i.e.
smaller than the work piece (Fig. 3). The three piece seal
kit should be able to accommodate almost all situations.
