1. Introduction
This manual provides detailed instructions for the safe and effective operation, maintenance, and troubleshooting of your AEROPRO V-641 Air Sand Blaster Gun Kit. Please read this manual thoroughly before use to ensure optimal performance and safety.
Figure 1: AEROPRO V-641 Air Sand Blaster Gun Kit
2. Safety & Warnings
Important Safety Information:
- Keep the V-641 sandblasting gun, air hose, and blasting abrasive media out of reach of children under 14 years old.
- Minors are prohibited from operation; use only under full adult supervision.
- Do not use this sandblasting gun for any work other than surface rust removal, paint stripping, matte finishing, and derusting treatment.
- Inspect gun body, nozzle, air connector, and air hose before every use; stop using immediately if cracked, leaking, blocked, or deformed.
- Strictly follow assembly and operation guidelines to prevent high-speed abrasive ejection injury.
- Do not expose the tool to long-term water immersion or heavy moisture to avoid internal rust and air leakage failure.
- The nozzle sprays high-hardness abrasive at high speed; handle all parts with care to avoid cuts, impact wounds, and eye injuries.
- Mandatory full protective gear during operation: sealed safety goggles, professional dust respirator, thick cut-resistant gloves, and dust-proof work clothes.
- Disconnect air supply completely before replacing nozzles, adding abrasives, cleaning, or maintaining the gun.
- Only connect clean, dry compressed air within rated working pressure; never supply overpressure air.
- Operate only in well-ventilated enclosed blasting booths; avoid outdoor open-air blasting to prevent environmental dust pollution.
- Never aim the blasting nozzle at human bodies, animals, or eyes at any time.
- Store in a cool, dry, locked tool cabinet separated from abrasive sand when idle.
3. Components Overview
Familiarize yourself with the main parts of your AEROPRO V-641 sandblaster:
Figure 2: Sandblaster Components
- Container and Container Cap: Twist off the container cap to pour dry abrasive grit into the container.
- Different Nozzle: Select the correct spot blast nozzle for the work at hand.
- Sand Bag: Fits the grit recycling bag.
- Adjustable Control Valve: Easy to control for precise adjustment of abrasive flow.
- Air Regulator: With gauge, provides precise adjustment of the blasters incoming air flow.
- Handle and Trigger: The blaster is lightweight and balanced with an ergonomic handle and trigger.
Figure 3: Ceramic Nozzles
4. Specifications
| Feature | Specification |
|---|---|
| Model Number | V-641 |
| Type | SAND BLASTER |
| Power Type | Pneumatic |
| Feed Type | Gravity |
| Working Pressure | 44-116 psi (3.0-8.0 bar) |
| Suggested Working Pressure | 58 psi (4.0 bar) |
| Max. Working Pressure | 116 psi (8.0 bar) |
| Air Consumption | 8.8-10.6 CFM (250-300 ml) |
| Pot Capacity | 900 ml (30 Oz) |
| Standard Nozzle | 5 mm |
| Air Inlet | 1/4" |
| Dimension | 13.9 x 17.32 x 4.3" (355 x 440 x 109 mm) |
| Max. Particle Size | 40 grit |
| Weight | 420 g |
| Suggested Air Compressor | 3 HP |
| Sand Blaster Media Types | Aluminum Oxide Grit, Silicon Carbide Grit, Garnet Grit, Steel Grit, Steel Shot, Glass Bead, Black Beauty Grit, Stainless Steel Shot, Glass/Aluminum Oxide, Ground Glass, Walnut Shells, Corn Cob, Plastic Grit, Baking Soda |
| Handheld | Yes |
| Movable | Yes |
| Electrified | No |
| Battery Included | No |
| Certification | CE |
| Origin | Mainland China |
Figure 4: Product Dimensions
5. Setup
5.1. Before First Use
- Remove all plastic protective wraps and nozzle caps.
- Clean the internal material channel with dry compressed air to clear factory anti-rust residues.
- Add a small amount of pneumatic tool lubricating oil into the air inlet.
5.2. Air Connection
- Connect a standard pneumatic air hose to the air inlet joint of the V-641 sandblasting gun.
- Adjust air compressor pressure to the rated working pressure (58 psi / 4.0 bar suggested).
- Check all joints for air leakage before operation.
6. Operating Instructions
6.1. Loading Blasting Abrasive
- Pour clean, dry, qualified blasting sand/abrasive into the material cup.
- Tighten the sealing lid firmly to prevent air leakage and abrasive splashing during operation.
6.2. Sandblasting Operation
- Hold the sandblasting gun firmly.
- Keep the nozzle 10–20 cm away from the workpiece surface.
- Pull the trigger steadily to eject abrasives.
- Move the gun evenly horizontally to achieve a uniform surface treatment effect; do not stay in one spot for too long.
6.3. Intermittent Work
- Release the trigger to stop abrasive ejection.
- If pausing work for more than 15 minutes, empty residual abrasives inside the gun to avoid nozzle blockage.
Video 1: AEROPRO V-641 Sand Blasting Machine in action, demonstrating its features and application.
Figure 5: Application examples of the AEROPRO V-641 Sand Blaster
7. Maintenance
7.1. After Use & Storage
- Pour out all leftover blasting abrasives completely from the material cup.
- Blow through all internal flow passages with dry compressed air to clear residual dust and sand.
- Disconnect the air hose, wipe dust and abrasives off the gun surface thoroughly.
- Inject a drop of anti-rust lubricating oil into the air inlet, then reassemble all dry parts.
- Store the V-641 sandblasting gun in a dry, dust-proof tool box, far away from children and damp environments.
8. Troubleshooting
This section addresses common issues you might encounter with your sandblaster.
| Problem | Possible Cause | Solution |
|---|---|---|
| No abrasive flow | Low abrasive media level, wet media, clogged nozzle or material channel, insufficient air pressure. | Check and refill media, ensure media is dry, clear any clogs, verify air pressure meets specifications. |
| Weak blasting power | Low air pressure, worn nozzle, incorrect nozzle size. | Increase air pressure, replace worn nozzle, ensure correct nozzle for application. |
| Air leakage | Loose connections, damaged seals or O-rings. | Tighten all connections, inspect and replace damaged seals or O-rings. |
9. User Tips
- Upon receiving your sandblaster, carefully inspect the packaging and product for any signs of damage during transit. Although the product is robust, early detection of damage can prevent issues.
- To prevent clogs and ensure continuous operation, always use the correct abrasive media type and ensure your compressed air supply is moisture-free.
- For optimal results and to avoid staying too long in one spot, move the gun evenly horizontally across the workpiece surface during sandblasting.
10. Warranty & Support
10.1. Manufacturer Information
Manufacturer: ZHEJIANG RONGPENG IMP. & EXP. CO.,LTD
Address: Shuiquetou Village, Pengjie Town, Luqiao District, Taizhou, Zhejiang, China.318057
Tel: +86-576-82533812
Email: sales21@rongpeng.com
Website: www.rongpeng.com
10.2. EU Authorized Representative
Representative: RUBETE - Equipamentos Industrials, S.A.
Address: LUGAR DA IGREJA - APARTADO 53, 4406-901, V.N.GAIA - PORTUGAL
Email: cnrongpeng@gmail.com
Tel: +351-227150400
10.3. Compliance Information
This V-641 sandblasting gun is a non-electrical pneumatic surface treatment hand tool.
- CE marking is affixed on the product surface; complies with EU Machinery Directive 2006/42/EC.
- Complies with REACH Regulation (EC) No 1907/2006, ensuring no restricted harmful substances exceed limit values.
- Complies with VOC emission requirements for coating tools under EU relevant environmental regulations.
- Complete technical construction file (TCF), test reports, and Declaration of Conformity (DoC) are available for EU market supervision inspection.
For a detailed user manual in PDF format, please refer to the official document: User manual (PDF)