Contractor 15205, Instructions Manual

Page: 10 / 120

ENGLISH
CONTRACOR
®
Version 3.9 10
Table 3.1 Max. nozzle size
3.4. Blast media
Contracor cabinets utilize most common media, 1,50 mm and coarser that is specifically
manufactured for dry blasting.
The usable media mesh size and nozzle size are based on typical media flow. Rich media
flow or low static pressure will reduce the mesh and nozzle size that may be used.
3.3. Air jet diameter and required compressed air volume
The blast machine pressure vessel is manufactured according to European CE
regulations, as described in attached CE Certificate of conformity. The owner must ensure
and maintain the integrity of the vessel, as may be required in some countries.
Reclaimer type Max. nozzle size, mm
R-350 6,5
R-400 8,0
ATTENTION!
Excessive air pressure could cause the media chamber to rupture. To pre-
vent serious injury or death, do not exceed the rated pressure of the media
chamber vessel.
After having ensured that the air supply is activated and the cabinet doors are closed,
the media chamber can be actuated by the foot pedal. By pressing the foot pedal, the inlet
valve is opened and the outlet valve is closed, resulting in the cham-ber being pressurized
and the blasting beginning. By releasing the foot pedal, the chamber is depressurized and
blasting stops.
The standard nozzle delivered with the blast cabinet is a tungsten-carbide nozzle with
a 6.5mm orifice. In addition, 5.0 and 8.0mm nozzles are available. The maximum diameter
of the orifice under normal conditions is determined by the size of the reclaimer, as shown
in Table 3.1 below. Normal condition are moderate part contamination, media breakdown,
flow and size, and damper setting.