AEROPRO V-641 Gravity Feed Sand Blaster Instruction Manual

Introduction

The AEROPRO V-641 Gravity Feed Sand Blaster is a lightweight, durable, and comfortable pneumatic tool designed for various surface treatment tasks. Its gravity-fed design efficiently forces blast media into a hardened steel mixing chamber, which is then propelled through a ceramic nozzle at high velocity by compressed air. This self-contained unit is ideal for rust removal, paint stripping, matte finishing, and derusting treatments.

The sandblaster's safety-vented reservoir tank prevents clogging and allows for continuous operation with appropriate media and moisture-free air. It can accommodate a variety of blast media not exceeding 14 grit.

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 grinding disc, disassembling, or maintaining the grinder.
• 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.
• Disconnect the air supply completely before replacing nozzles, adding abrasives, cleaning, or maintaining the gun.
• Store in a cool, dry, locked tool cabinet separated from abrasive sand when idle.

Specifications

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.

Setup

1. Before First Use

1. Remove all plastic protective wraps and nozzle caps from the sandblaster.
2. Clean the internal material channel with dry compressed air to clear any factory anti-rust residues.
3. Add a small amount of pneumatic tool lubricating oil into the air inlet.

2. Air Connection

1. Connect a standard pneumatic air hose to the air inlet joint of the V-641 sandblasting gun.
2. Adjust your air compressor pressure to the rated working pressure (44-116psi / 3.0-8.0bar).
3. Check all joints for air leakage before operation.

Operating Instructions

1. Loading Blasting Abrasive

1. Twist off the container cap.
2. Pour clean, dry, and qualified blasting sand/abrasive into the material cup.
3. Tighten the sealing lid firmly to prevent air leakage and abrasive splashing during operation.

2. Sandblasting Operation

1. Hold the sandblasting gun firmly.
2. Keep the nozzle 10 - 20 cm (approximately 4-8 inches) away from the workpiece surface.
3. Pull the trigger steadily to eject abrasives.
4. Move the gun evenly horizontally to achieve a uniform surface treatment effect. Avoid staying in one spot for too long to prevent uneven blasting.

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.

Maintenance & Storage

After Use & Storage

1. Pour out all leftover blasting abrasives completely from the material cup.
2. Blow through all internal flow passages with dry compressed air to clear residual dust and sand.
3. Disconnect the air hose and wipe dust and abrasives off the gun surface thoroughly.
4. Inject a drop of anti-rust lubricating oil into the air inlet.
5. Reassemble all dry parts.
6. Store the V-641 sandblasting gun in a dry, dust-proof tool box, far away from children and damp environments.

Troubleshooting

While specific troubleshooting steps are not detailed in the provided information, general issues with pneumatic sandblasters often relate to:

• No abrasive flow or inconsistent flow: Check for clogs in the nozzle or material channel. Ensure the abrasive media is dry and free of clumps. Verify the adjustable material control valve is set correctly.
• Low blasting power: Confirm the air compressor is providing sufficient and consistent pressure within the recommended range (44-116psi). Check for air leaks in connections or hoses.
• Air leakage: Inspect all connections, hoses, and the gun body for cracks or loose fittings. Replace any damaged components immediately.
• Uneven blasting: Ensure consistent gun movement and distance from the workpiece. Check the nozzle for wear or damage.

Always ensure the air supply is disconnected before performing any inspection or maintenance.

User Tips

Based on general usage and product features:

• For optimal performance, always use clean, dry abrasive media and ensure your air compressor provides moisture-free air.
• Experiment with different abrasive media types and particle sizes (up to 14 grit) to find the best results for your specific application.
• Regularly check the ceramic nozzle for wear, as a worn nozzle can significantly reduce blasting efficiency.
• When working on delicate surfaces, start with lower air pressure and a finer grit abrasive, gradually increasing as needed.

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

EU Authorized 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

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, no restricted harmful substances exceed limit values.
• Comply 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.

Additional Resources

A detailed user manual in PDF format is available for further reference. Please consult the official product page or contact the manufacturer for access to the PDF document: User manual (PDF).