When it comes to metalworking, having the right tools can make all the difference in efficiency, safety, and the quality of your work. FEIN angle grinders are renowned for their reliability and performance, particularly the CG 15-125 BL, a brushless grinder designed for professionals. In this blog, we have curated a list of professional tips for using this powerhouse effectively and safely.

Understand the CG 15-125 BL's Features

Before diving into the tips, it's crucial to understand the capabilities of the CG 15-125 BL. This grinder boasts a brushless motor, which means it requires less maintenance and offers a longer service life. With a powerful 1500W motor, it provides consistent performance even under heavy loads. The 125mm disc size is ideal for precision cutting and grinding tasks.

Standout features include:

  • Variable speed control: Adjusts to different metals and applications.
  • Overload protection: Enhances safety and tool lifespan.
  • Restart protection: Prevents accidental start-ups.
  • Soft start: Ensures smooth operation and reduces wear on components.
  • New anti-vibration handle: Improves the grip by up to 16% compared to standard handles.
  • Fully enclosed FEIN brushless motor: This protects from aggressive ceramic and mineral dust which prolongs the service life.
  • Lower service costs: Enjoy lower service costs due to not having to replace carbon brushes!
FEIN CG 15 BL - LASTS MUCH LONGER, BUT COSTS MUCH LESS!
  • The fully enclosed brushless FEIN PowerDrive motor provides the perfect protection from aggressive ceramic and mineral dusts. Sooner or later, these dusts will destroy universal motors. The new innovative FEIN motor concept reliably prevents this from happening and thereby extends the tool’s life by more than 60%.
  • The technology in the FEIN PowerDrive motor manages without carbon brushes. This translates into few wearing parts, longer service intervals and lower maintenance costs. The extremely efficient 1500 W motor consumes 200 W less power and yet is more effective than a 1700 W universal motor, which cuts energy costs.
To the machine

1. Safety First: Wear Proper PPE

Grinders, while essential, can be hazardous if not handled with care. When using the CG 15-125 BL or any grinder, always prioritise safety:

  • Wear safety glasses or a face shield to protect against flying debris.
  • Use hearing protection: The high-speed operation can produce significant noise.
  • Wear gloves: Opt for gloves that provide a good grip without sacrificing dexterity.
  • Use a dust mask or respirator if you're working in an environment with a lot of dust or metal shavings.

 

2. Choose the Right Disc for the Job

The CG 15-125 BL is compatible with a range of discs, including cutting discs, grinding discs, flap discs, and wire wheels. Each disc type serves a different purpose:

  • Cutting discs: These are used for precise cuts in metal sheets, pipes, and rods. Ensure the disc size matches the grinder's specifications.
  • Grinding discs: Ideal for removing excess material and smoothing out welds or rough edges.
  • Flap discs: Use for blending and finishing tasks, providing a smoother finish than grinding discs.
  • Wire wheels: Perfect for rust and paint removal on metal surfaces.

Before use, always inspect the disc for signs of damage and ensure it is securely attached to the grinder.

3. Optimise the Speed of Your Material

One of the standout features of the CG 15-125 BL is its variable speed control. Different metals and tasks require different speeds:

  • High speed: Ideal for cutting and grinding harder materials like stainless steel.
  • Low to medium speed: Better for softer metals like aluminium or when using polishing attachments.

Always start at a lower speed and gradually increase it until you find the optimal setting for your specific task.

4. Use the Right Pressure

Applying too much pressure while grinding can lead to premature wear on the disc and motor. With the CG 15-125 BL's powerful motor, light to moderate pressure is usually sufficient. Let the grinder do the work, and avoid pushing it beyond its limits:

  • For cutting: Steady and gentle pressure will result in cleaner cuts without overheating the metal.
  • For grinding: Maintain a consistent pressure to avoid gouging the material and to ensure an even finish.

5. Maintain Control with Both Hands

Grinders can be challenging to control, especially when operating at high speeds. The CG 15-125 BL features an ergonomic design with a side handle, which should always be used for added stability:

  • Use both hands: One on the main handle and the other on the side handle to maintain control.
  • Position yourself correctly: Stand in a stable position, keeping the grinder at an angle that allows you to see your work clearly without being directly in line with the disc.

6. Keep the Work Area Clean

A cluttered workspace increases the risk of accidents. Regularly clear metal shavings, dust, and debris from your workbench and the surrounding area:

  • Use a dust extractor: To minimise airborne particles, connect the CG 15-125 BL to a dust extraction system.
  • Regularly inspect: Check the grinder’s vents to ensure they are not clogged with dust, which can lead to overheating.

7. Regular Maintenance for Longevity

The CG 15-125 BL is designed for durability, but like any tool, it requires regular maintenance:

  • Check the brushes: Although this model has a brushless motor, ensure all moving parts are clean and free from obstructions.
  • Inspect the power cord: Look for signs of wear or damage to avoid electrical hazards.
  • Clean the tool: After each use, wipe down the grinder and clean the disc guard to prevent build-up that could affect performance.

8. Use the Guard and Adjust as Needed

The disc guard is there for a reason – it protects you from sparks, debris, and accidental contact with the disc:

  • Never operate the grinder without the guard: Ensure it is securely in place and positioned between you and the disc.
  • Adjust the guard: Depending on the task, you may need to adjust the guard to provide the best protection and visibility.

9. Follow Best Practices for Storage

When not in use, store your CG 15-125 BL in a dry, clean place. This prevents moisture from affecting the tool and extends its lifespan. For added convenience, consider hanging the grinder on a dedicated tool rack.

The FEIN CG 15-125 BL grinder is a versatile and powerful tool designed for metalworking professionals. By following this list of professional tips, you can ensure not only the best performance from your grinder but also enhance safety and prolong the tool's life. Remember, the key to mastering metalworking is a combination of skill, knowledge, and using the right equipment. With the CG 15-125 BL in your toolkit, you're well-equipped to tackle any metalworking challenge with precision and confidence.

Visit your local FEIN dealer to explore the full angle grinder range and elevate your grinding experience!

Experience The Difference With FEIN's CG 15 BL Grinder