Why RCD Combi Discs Will Save Time and Money When Sanding Stainless Tubular Tig Welds

With a combination of premium ceramic abrasive cloth and surface conditioning material the Cibo RCD-disc allows you to grind down weld seams and provide a perfect fine satin finish in just one move. It is universally patented which consists of two complimentary abrasive materials. The Cibo RCD has revolutionised the tube sanding process. In the past a skilled grinder required at least three operations to completely remove a weld seam. An inexperienced user can now complete the task in a single step.

The Materials:

Premium abrasive cloth for quick, controlled and cool sanding of the weld. A strong and extra flexible polycotton backing on the abrasive cloth. Plus a top coat of grinding aids to ensure a cool cut and long life.

The interleaved surface conditioning flaps ensure an even finish even at low pressure. This combination gives the RCD a rapid and even grinding capacity with an amazing finish. The result, no flat spots on the tube and a fantastic finish.

Ideally to be used with:

Finishing light tig weld seams and corners.
Improving surface roughness, blending coarse grinding lines and removing milling lines.
Breaking edges.
Preparation for polishing.
Removing welding spatter.

Tricks of the Trade:

Mount the RCD on a variable speed angle grinder.

Recommended speed 3,600 – 6,000 RPM. This way you can keep grinding temperature low and give the disc a much longer lifespan.

Use a well-controlled pressure when working. A light pressure is best with the RCD combination disc.

Grind at a shallow angle of 10-15 degrees to enlarge the contact surface.

Make a back-and-forth movement lengthwise along your work piece with the rotation of the disc in the direction of the desired grain in your finish.

Our testing:

In our demo room we tried out comparing the performance of the RCD to a commonly used high performance ceramic sanding disc.

The first two clips show our test using a 120 grit sanding disc on the stainless-steel tube welded joint. As you can see the result left facets and flat faces all over the worked area. Whilst the sanding disc removed the weld easily enough, an extra stage and product is required to take it to a flawless finish.

Stage 3 shows what happened when the same was worked over with the medium RCD disc. The RCD removed all surface roughness and weld seams. The RCD also left a smooth consistent finish in a controlled way. This area is now perfectly prepared for polishing. Whilst we love sanding discs for many applications, you could do this process in one action by using the Cibo RCD Combination disc to remove the weld as well!!