Sponge-Jet RASP RX3 Manual de usuario
SPONGE-JET RASP RX3 USER MANUAL | 1
SPONGE-JET®
RASP RX3 Feed UnitTM
USER MANUAL
Sponge-Jet, Inc. (USA)
14 Patterson Lane +1-603-610-7950
Newington, NH 03801 www.spongejet.com
Sponge-Jet RASP RX3 User Manual - REV A / DOC: MKT-014-ENG
2| SPONGE-JET RASP RX3 USER MANUAL
CONTENTS
1.0 Basic Components 3
2.0 Safety Checklist 6
3.0 Requirements 8
4.0 Operation 11
5.0 Maintenance 18
6.0 Troubleshooting 19
Notes 27
IMPORTANT NOTE: While parts, systems, components, operational
procedures may be the same between equipment models, the images
provided in this manual may vary from model to model.
This manual represents the following models and their approximate
working capacity:
Model: RX3 Working Capacity: 37 liters (1.3 ft3)
English Language is Original Instructions.
Translated from Original Instructions.
SPONGE-JET RASP RX3 USER MANUAL | 3
10 11
3
6
1
9
7
1.0 BASIC COMPONENTS
1 Handhole Cover
2 Crab Assembly
3 Handhole
4Grounding strap
5Emergency Stop Button
6 Lifting Eye
7 Pressure Vessel
8 On/O Blast Pressure Regulator
9 Choke Valve
10 Moisture Separator
11 Air Motor
2
8
5
4
4| SPONGE-JET RASP RX3 USER MANUAL
14 Push/Pull Hand-latch
15 Relief Valve
16 Blast Pressure Regulator Knob
17 Media Feed Pressure
Regulator Knob
18 Supply Line Connection
19 Main Air Ball Valve
20 Accessory Air Supply Valve
21 Twinline Quick Connect Fittings
22 Blast Hose Connection
23 Air Motor Moisture Separator
24 Air Motor Lubricator
25 Air Motor
26 Clean Out Trap
27 Auger Chain Guard
28 Manual Rotation Knob
29 Actuator Control Line
30 Media Actuator
31 Actuator Tree and Chain
15
1918
25
26
24
21
22
16 17
23
28
27
26
31
30
29
25
20
14
15
23 24 25
21
SPONGE-JET RASP RX3 USER MANUAL | 5
32 Blast Pressure Gauge
33 Line Pressure Gauge
34 Media Feed Gauge
35 Blast Hose
36 Nozzle Holder
37 Nozzle
38 Twinline
39 Twinline Connection
40 Deadman Handle
35
36
40
36
38
39
35
37
33 34
32
16 17
38
6| SPONGE-JET RASP RX3 USER MANUAL
2.0 SAFETY CHECKLIST
Survey environment for hazards; read manual and instructions before
operating and follow ALL safety practices in accordance with ALL
applicable local regulations.
ENSURE CAPACITY OF THE CUSTOMER-INSTALLED OVER-PRESSURE RELIEF
VALVE EQUALS OR EXCEEDS CAPACITY OF THE COMPRESSED AIR SUPPLY.
FACTORY-SUPPLIED OVERPRESSURE RELIEF VALVE
IS RATED ≤ 17.7M3/MIN (625 SCFM). CONFIRM IN-
STALLED OVERPRESSURE RELIEF VALVE ON UNIT IS
SUITABLE FOR THE RATING OF THE COMPRESSED
AIR SUPPLY.
Location and usage of Emergency Stop Button
should be understood before operation. Pushing in
the Emergency Stop Button stops operation;
Pulling it out allows for operation. DO NOT pull Emergency Stop Button
and press Deadman until ALL operators are fully prepared to blast and
nozzle(s) are under operator control.
This Unit is a pressurized system. Only trained operators should adjust, main-
tain and repair it. Visit www.spongejet.com for information on training.
Inbound pressure should never exceed the listed Maximum Working
Pressure on the data plate. To prevent electrostatic buildup and possible
electric discharge, the unit and work piece must be properly grounded/bonded.
WARNING
Secure ALL safety restraints. Whip-check, safety pins, wire, grounding
straps and hose couplings must be properly secured before operating.
Failure to do so may result in serious injury or death.
WARNING
Eye, hearing and respiratory personal protective equipment required for
operators and others in close proximity to blasting. Failure to do so may
result in serious injury.
WARNING
Sudden media discharge and loud noise. Keep hands and face free from area.
ALWAYS use proper respiratory, hearing and eye protection equipment.
The operator and anyone within 1m (3ft) of the nozzle can be exposed to
sound emission in excess of 120 dB(A).
Never point Blast Nozzle towards yourself or others.
The safety of you and others is
extremely important.
There are important safety messages
in this manual and on your product.
Always read and obey safety messages.
This is a safety alert symbol.
This symbol alerts to hazards
that can injure or kill you and/
or others. The safety alert symbol and
words like “Caution” and “Danger” pre-
cede all safety messages. These words
mean:
WARNING: Indicates a hazardous situa-
tion which, if not avoided, could result in
death or serious injury.
CAUTION: Indicates a hazardous situa-
tion, which, if not avoided, could result in
minor or moderate injury.
SPONGE-JET RASP RX3 USER MANUAL | 7
WARNING
ONLY use Sponge-Jet approved positive-feed Deadman control handles.
DO NOT reverse twinlines. Failure to comply will override safety controls,
cause unintentional start-up and unreliable shutdown—which may lead to
serious injury or death.
Inspect ALL equipment prior to each shift.
Never operate Unit with any worn or malfunctioning components.
All pneumatic lines should be inspected for holes, wear and proper fit.
Safety pins (wire) and whip-checks should be fitted at all Air Supply Hose and
Blast Hose couplings to prevent accidental disconnection.
Never weld or make modifications to pressure vessel, as this will void
certifications.
CAUTION
Crush hazard. Use only on flat ground. Unit may roll, resulting in personal
injury.
WARNING
Hand-hole MUST be securely fastened. Improper seal may result in
serious injury.
Do not operate without Auger Chain Guard in place.
WARNING
Do not operate with guards removed. Moving parts may cut, pinch, or crush.
Keep clear of moving parts.
WARNING
Pressurized system. Release air pressure before servicing.
Failure to comply may result in serious injury.
WARNING
Secure ALL safety restraints. Whip-check, safety pins, wire, grounding
straps and hose couplings must be properly secured before operating.
Failure to do so may result in serious injury or death.
WARNING
Pinch point. Moving unit may cut, pinch or cause dismemberment;
keep clear of moving parts.
8| SPONGE-JET RASP RX3 USER MANUAL
3.0 REQUIREMENTS
3.1 Air Supply/Compressor
Clean, dry, compressed air must be supplied in adequate volume and pressure
to accommodate nozzle size at the desired blast pressure.
Highest rated pressure for models in this manual is 10.3bar (150psi).
*Always check vessel rating located on unit’s data-plate.
NOTE: High-humidity environments require additional moisture separators.
(METRIC) M3/MIN REQUIREMENTS
Nozzle Size 4.1bar 4.8bar 5.5bar 6.2bar 6.9bar 8.3bar 9.7bar
No. 6 Nozzle 3.6 4.0 4.6 4.9 5.5 6.2 7.1
9.5mm Feed Unit 1.1 1.1 1.1 1.1 1.1 1.1 1.1
Reserve 0.9 1.0 1.1 1.2 1.3 1.5 1.6
Total 5.6 6.2 6.8 7.2 8.0 8.8 9.8
No. 7 Nozzle 4.8 5.5 6.1 6.8 7.2 8.5 9.8
11mm Feed Unit 1.1 1.1 1.1 1.1 1.1 1.1 1.1
Reserve 1.2 1.3 1.5 1.6 1.7 1.9 2.2
Total 7.1 7.9 8.7 9.5 10.0 11.5 13.1
No. 8 Nozzle 6.3 7.1 7.9 8.7 9.6 11.1 12.7
12.5mm Feed Unit 1.1 1.1 1.1 1.1 1.1 1.1 1.1
Reserve 1.5 1.7 1.8 2.0 2.1 2.4 2.8
Total 9.0 9.9 10.9 11.9 12.8 14.7 16.6
SPONGE-JET RASP RX3 USER MANUAL | 9
(IMPERIAL) CFM REQUIREMENTS
Nozzle Size 60psi 70psi 80psi 90psi 100psi 120psi 140psi
No. 6 Nozzle 126 143 161 173 196 220 253
3/8in Feed Unit 40 40 40 40 40 40 40
Reserve 33 37 40 43 47 52 59
Total 199 220 241 256 283 312 352
No. 7 Nozzle 170 194 217 240 254 300 344
7/16in Feed Unit 40 40 40 40 40 40 40
Reserve 42 47 51 56 59 68 76.8
Total 252 281 308 336 353 408 461
No. 8 Nozzle 224 252 280 309 338 392 450
1/2in Feed Unit 40 40 40 40 40 40 40
Reserve 53 58 64 70 76 86 98
Total 317 350 384 419 454 518 588
3.2 Air Supply Requirements
This Unit uses 50mm (2in)
standard pipe typically fit with a
50mm (2in) universal 4-lug coupling.
Larger hoses decrease pressure
loss.
Nozzle Orifice Recommended Air Line I.D.
#6 9.5mm (3/8in) 50mm (2in)
#7 11mm (7/16in) 50mm (2in)
#8 12.5mm (1/2in) 76mm (3in)
10 | SPONGE-JET RASP RX3 USER MANUAL
3.3 Blast Hoses
Extensions up to 30m (100ft) should have minimum 38mm (1.5in) I.D.
Extensions over 30m (100ft) should have minimum 50mm (2.0in) I.D. Blast
Hose Extension. Larger hoses decrease pressure loss.
3.4 Operating Temperature
Operating temperature range is
0°c (32°f) to 50°c (120°f).
NOTE: Ice build-up from moisture may
require thawing prior to operation.
3.5 Containment
Sponge-Jet Sponge Media™ must be contained to be eciently recycled. Use
plastic sheeting or mesh. Projects involving hazardous materials, high wind
load or other challenging conditions may require more complex containment
and negative air dust collection.
NOTE: Pre-cleaning the blast area can minimize dust and debris which can
also cause equipment malfunctions.
Always follow local, state and federal guidelines concerning proper
containment, ventilation and monitoring procedures.
WARNING
Eye, hearing and respiratory personal protective equipment required for
operators and others in close proximity to blasting. Failure to do so may
result in serious injury.
0ºC
(32ºF)
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