Charnwood Oscillating Belt Sander - BS690

Part of the Charnwood PRO series, this belt sander has automated oscillation which improves result...

Best current price£953.00from B&Q

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B&QB&Q - Bs690 Oscillating Belt Sander 6'' X 90'' Capacity
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eBayCharnwood BS690 Oscillating Belt Sander 6'' x 90'' Capacity
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Product Information

Full details

The Charnwood BS690 Oscillating Belt Sander is designed for woodworkers seeking a professional-grade tool for achieving smooth, scratch-free finishes on a variety of projects. Its key benefit lies in the automated oscillation system, which significantly enhances surface quality and belt longevity. A potential caveat for some users may be the requirement for a 16-amp fixed electrical supply.

All features

Model Part NumberBS690
BrandCharnwood

Extended Product Information

FAQs

What size abrasive belt does this sander use?

The Charnwood BS690 uses abrasive belts of size 150mm x 2260mm (6" x 90").

Do I need special wiring for this sander?

Yes, the sander requires a 16-amp fixed electrical supply. It is also recommended to use a 16-amp Type C breaker.

Can this sander be used for small intricate parts?

Yes, the cast iron end table allows for sanding curved pieces around the drum's diameter, making it suitable for smaller, shaped components.

How does the oscillation feature improve the finish?

The automated oscillation moves the belt back and forth, which helps to distribute sanding pressure evenly, prevent glazing, and significantly reduce the likelihood of visible scratches, leading to a smoother finish.

What is the purpose of the graphite anti-friction plate?

The graphite plate provides a low-friction, firm surface behind the sanding belt, preventing the belt from stalling when material is pushed against it and reducing wear on the belt.

Can the belt be used in both vertical and horizontal positions?

Yes, the sander is designed to accommodate the sanding belt in both vertical and horizontal orientations to suit different workpiece shapes and sanding tasks.

What is the minimum dust extraction airflow required?

A minimum dust extraction airflow of 1,000 m³/hr is required for optimal dust collection.

Troubleshooting

Sander belt stalls or bogs down

Ensure you are using the correct 16-amp power supply. Check that the belt is not damaged or excessively worn. Reduce the pressure applied to the workpiece. Verify the dust extraction is functioning optimally, as blockages can cause resistance.

Poor finish quality (scratches)

Confirm the oscillation mechanism is active. Ensure the abrasive belt is correctly tensioned and free from embedded debris. Check the graphite plate for damage or wear. Use a finer grit belt if necessary for the final stages of sanding.

Excessive vibration

Ensure the sander is on a stable, level surface. Check that the belt is tracking correctly and is not damaged. Inspect the drive drums and rollers for debris or damage.

Dust extraction is ineffective

Ensure the dust hose is securely connected and not kinked. Verify that your dust extraction unit meets the minimum airflow requirement of 1,000 m³/hr. Clean out any blockages in the dust hood or extraction system.

Pros and Cons

Pros

  • Achieves exceptionally smooth, scratch-free finishes due to oscillation.
  • Powerful 3hp motor handles tough sanding jobs with ease.
  • Versatile for both flat and curved surface sanding.
  • Durable construction with cast iron components ensures longevity.
  • Effective dust management system improves working environment.

Cons

  • Requires a dedicated 16-amp electrical circuit and potentially a Type C breaker.
  • Larger footprint may require significant workshop space.
  • Initial setup may require careful calibration for optimal results.
  • Can be heavy, making repositioning challenging.
  • The 80G abrasive belt supplied might be too coarse for fine finishing without preparation.

Setup, Compatibility & Care

Setup:

  1. Position the sander on a stable, level surface.
  2. Ensure the required 16-amp, 240v, 50Hz power supply is available. A Type C breaker is recommended.
  3. Connect a dust extraction system to the 100mm outlet; ensure your system provides at least 1,000 m³/hr airflow.
  4. Install the desired abrasive belt (a 150mm x 2260mm belt is required).
  5. Adjust the work tables and fence guides as needed for your specific task.

Compatibility:

  • Power: Requires a 16-amp, 240-volt, 50Hz fixed electrical supply.
  • Dust Extraction: Compatible with standard 100mm dust extraction hoses and systems capable of 1,000 m³/hr airflow.
  • Abrasive Belts: Uses 150mm x 2260mm sanding belts.

Care:

  • Regularly clean dust from the machine, especially around the dust hood and motor vents.
  • Inspect the graphite anti-friction plate for wear and replace if necessary.
  • Periodically check the belt for tension and wear; replace when worn or damaged.
  • Keep work surfaces clean and free of debris.
  • Lubricate moving parts of the height adjustment mechanism as per manufacturer recommendations (if applicable).

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