Contracor SFG-Type Manual de usuario
CONTRACOR GmbH
42327 Wuppertal,
Germany Art. 10115000
Portable Suction Blast Tool
SFG-Type
OPERATION MANUAL
Version 1.0
EN
DE
Mobiles Injektor Strahlgerät
SFG-Type
BEDIENUNGSANLEITUNG
Version 1.0
Seite 14
RU
Пистолет абразивоструйный
эжекторного типа
SFG-Type
РУКОВОДСТВО ПО ЭКСПЛУАТАЦИИ
Версия 1.0
стр. 26
2CONTRACOR®Version 1.0
ATTENTION!
READ AND FULLY UNDERSTAND THIS MANUAL BEFORE STARTING WORK.
THE FOLLOWING INFORMATION IS IMPORTANT FOR SAFETY AND HEALTH
OF OPERATOR AND PERSONNEL IN VICINITY.
ATTENTION!
AFTER PURCHASING THE BLAST MACHINE, PLEASE FILL IN THE
GUARANTEE CARD CORRECTLY!
FAILURE TO PRODUCE A FILLED-IN FORM WILL MAKE YOUR GUARANTEE
INVALID.
Contents
1. Safety 3
2. Package and Specication 4
3. General Description 6
4. Compressed Air and Abrasive 6
5. Set-Up and Operation 7
6. Adjustments 8
7. Maintenance 10
8. Troubleshooting 11
9. Spare Parts 12
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CONTRACOR®Portable Suction Blast Tool SFG-Type Art. 10115000
1. Safety
ATTENTION!
IMPORTANT WARNING FOR SAFER BLAST CLEANING
1. Tool operator and anyone within 50 feet of work area must wear
safety goggles.
2. Check for possible silicosis or other toxic hazards.
3. Do not blast with damaged or worn equipment.
4. Point nozzle only at area being cleaned.
5. Use only proper dry and well-screened abrasives specically
intended for blasting.
6. Keep unprotected workers out of the blast area.
7. Before blasting check ttings and hose for wear.
8. Do not substitute for parts from other manufacturers, or modied
equipment in any way.
4CONTRACOR®Version 1.0
2. Package and Specication
2.1 Package and Assembly
Pos.
#
Order Code Model Description
– 10115000 SFG SFG Suction Feed Blasting Gun with blast media container
110115100 Suction Gun, complete with blast nozzle and air-jet
210115101 GX-25 Blast media container SFG
3 10115920 Metering valve, blast media
4 41102004 Blast media hose, transparent
5 41200001 Rubber air hose, brown
610150018 SKG-13 Compressed air coupling
2.2 Specication
Parameter Value
Air hose I.D. 1/2"
Suction hose I.D. 1/2"
Blast nozzle I.D. 8 mm
Air jet I.D. 4 mm
Compressed air requirement 0,2 - 1,2 m³/min
Blast capacity 0,5 - 2,5 m²/hr
Max. working pressure 10 bar
Weight 14,5 kg (in box)
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CONTRACOR®Portable Suction Blast Tool SFG-Type Art. 10115000
Fig. 2.1 SFG Set
1
2
3
4
5
6CONTRACOR®Version 1.0
3. General Description
The CONTRACOR SFG GUN is a suction blast tool ideally suited to small jobs or locations with
limited air supplies. Thanks to its light weight and compact dimensions, the CONTRACOR SFG
GUN can be used in places where erecting a conventional pressure blast machine would be
awkward or inconvenient e.g. mechanical workshops, car restoration, etc..
The SFG GUN can be used with all common blast media (see §2.2) to clean or etch metal,
glass, stone or other hardwearing surfaces. To operate the SFG Gun, just connect it to a
compressed air source, and ll blast media into the portable container.
To commence blasting, simply depress the lever on the SFG Gun. The tool operates according
to Bernoulli's principle, where a low-pressure area is created by the compressed air rushing
past the abrasive-injection point, where the abrasive hose is connected to the gun. This low-
pressure area draws abrasive into the airstream, where mixing takes place. The air-abrasive
mix is then exhausted out of the gun and strikes the blasting surface.
4. Compressed Air and Abrasive
4.1 Compressed Air Requirements
The table below shows approximate air consumption (m3/min) at various pressures (bar)
for the power gun alone.
Table 4.1 Air consumption in m3/min
bar 34567
m3/min 0,58 0,72 0,87 1,01 1,15
4.2 Abrasive
Abrasive Size: The POWER GUN utilizes common abrasives that are 1.0 mm and ner.
Limited air supply, low blast pressure, or heavy abrasive may limit abrasive to smaller sizes.
Use only abrasives specically manufactured for blast cleaning, that are compatible with
the surface being blasted. Abrasive produced for other applications may be inconsistent
in size and shape, and produce an unsatisfactory nish. Some abrasive may contain salts,
corrosives, or other materials that could contaminate the surface being blasted.
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CONTRACOR®Portable Suction Blast Tool SFG-Type Art. 10115000
5. Set-Up and Operation
5.1 Set-Up
An air lter is recommended in the air supply to remove condensed moisture from the air line.
Connect POWER GUN to a 13мм (1/2"). lD air hose. An isolation valve is required at the air
source to enable depressurization.
Secure all compressed-air supply hose connections with safety lock pins to prevent accidental
disconnection.
5.2 Operation
Use the pointed end of the lance to pierce the bag of abrasive. Insert the lance into the
abrasive. The upper (air-intake) holes must remain open, and outside of the abrasive.
Pressurize the air supply line.
Fill blast media into the portable container. Put on the appropriate protective gear, including
supplied-air respirator, abrasive resistant clothing, leather gloves, and hearing protection as
required. Hold the gun approximately 150-250 mm from the blast surface, and squeeze the
trigger lever. Adjust the stand off distance and angle for optimum performance.
8CONTRACOR®Version 1.0
6. Adjustments
6.1 Air ow regulation
The control knob adjusts the force of air (blast pressure) coming out the nozzle.
Turning the knob clockwise decreases the blasting force for delicate jobs, and turning it
counterclockwise increases the blast force for tougher jobs.
Fig. 6.1
2 - 4 mm
Air jet
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CONTRACOR®Portable Suction Blast Tool SFG-Type Art. 10115000
6.2 Media/Air Mixture
Observe media ow through the clear media hose. Media should ow smoothly and evenly
through the hose. If the air exiting the nozzle pulses or if media does not ow smoothly, the
metering valve requires adjusting. To adjust loosen the locking nut, and adjust the metering
screw until the upper holes in the metering stem are closed-off, and the lower holes are fully
open.
If pulsation occurs in the media hose, either media is damp and caked, or not enough air
is entering the media stream. While blasting, loosen the locking nut and slowly turn the
adjusting screw out (counter clockwise when viewed from the top) until the media ows
smoothly. Tighten the locking nut to maintain the setting. If media ow is too light, decrease
air in the mixture by turning the metering screw in (clockwise when viewed from the top)
covering more of the holes so less air enters the media hose. Tighten the locking nut to
maintain the setting.
Fig. 6.2
holes fully open
Adjusting Screw
holes fully closed
10 CONTRACOR®Version 1.0
7. Maintenance
ATTENTION!
Failure to observe the following procedure before performing any
maintenance or service could cause serious injury or death from
the sudden release of compressed air.
– Lock out and tag out the compressed air supply.
– Bleed the air supply line.
Periodically inspect the air jet, mixing chamber, nozzle, and material hose for wear.
A new nozzle has a 8 mm ID orice. Replace the nozzle when its diameter has increased by
more than 1.5mm or sooner if suction diminishes noticeably.
Periodically inspect the grip and trigger assembly for air leaks. Repair at the rst sign of leaks.
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