52" x 75" Metalworking Sanding Belts, 2 PACK

On a 52-inch industrial wide belt sander the belts are the process: each head carries one grain and one grit, and the sheet that comes out the far end is only as good as the sequence you loaded. These 52" x 75" metalworking belts give a multi-head deburring or finishing line the three grains it needs, with zirconia plus a grinding aid for mild steel and general fabrication, ceramic for stainless and hardened steel on the removal heads, and cloth aluminum oxide for aluminum and for every finishing head from 150 to 600 grit.

All three grains are on a Y-weight polyester-cotton cloth that holds its length across a 52-inch drum and runs wet or dry. We convert them in Anaheim, California and pack them in twos so each head on the line has a running belt and a spare.

• Zirconia, ceramic and cloth AO on one 52" x 75" size, 24 through 600 grit
• Head-by-head coverage: removal grains at 24–120, cloth AO for 150–600 finishing heads
• Y-weight poly-cotton cloth tracks straight and holds length on a 52-inch drum
• Runs wet or dry for coolant-fed lines and dry lines with metal-rated collection
• Grinding aid in and on the zirconia keeps steel and stainless cooler under load
• 2-pack per grit; case quantities for full lines on request

Which grain goes on which head of a 52-inch deburring or finishing line?

Set the line from coarse to fine, fracturing grains first and aluminum oxide last, and never let one head skip more than one grade past the head before it.

• Zirconia (green or blue belt): the removal-head grain for mild steel plate, A36, tube and weldments, and the cooler option on stainless when a head cannot load ceramic. Ours carries a grinding aid in the resin bond and a second one coated on the grain, which lowers part temperature and reduces loading. Stocked 24, 36, 40, 50, 60, 80, 100 and 120 grit.
• Ceramic (orange-red belt): the removal-head grain for 304 and 316 stainless, hardened steel, tool steel and heavy plate. It renews its cutting points continuously and holds a near-constant rate through its life, cooler than zirconia, provided the head keeps it under load. Stocked 24, 36, 40, 60, 80 and 120 grit.
• Cloth A/O (brown belt): heat-treated aluminum oxide on the same poly-cotton cloth. The finishing-head grain on every metal and the only grain in this listing at 150, 180, 220, 320, 400 and 600; also the correct grain for aluminum sheet and plate, brass and copper at any grit.

A typical three-head stainless setup is ceramic 60 on the first head, ceramic or zirconia 120 on the second and cloth AO 220 on the third, followed by a surface conditioning belt. For laser-cut steel deburring, zirconia 60 then 120 is often all the line needs.

Grit guide for a 52" x 75" multi-head metal line

On aluminum, start at 60–80, slow the belt, and finish at 120–220 before a non-woven belt. Whatever the metal, a head at 220 will not remove a 60 scratch from the head before it; keep the steps to one grade, or at most two, between heads.

What machines take a 52" x 75" belt?

• 52–54 inch industrial wide belt sanders of the Timesaver 52 class that specify a 75-inch belt, set up for metal with a metal-rated collector or wet collection.
• Multi-head deburring and finishing lines for stainless sheet, laser-cut steel parts and aluminum panels up to 52 inches wide.
• Calibrating and finishing machines converted from wood to metal, once the dust system has been changed over.

Width must match exactly; 51, 52, 53 and 54 inch machines each take their own belt and we stock several of those widths. Length tolerance on most machines is about plus or minus a quarter inch, and the tracking oscillation centres the belt in that window. We have not verified specific model numbers for this size, so confirm the dimensions on your machine plate or in the manual. If your line needs a different length, we make 52-inch wide belts to order in about three days. Check the inside of the belt for a direction arrow before mounting and run it that way if one is printed.

How to get the most out of them

1. Metal-rated collection on every head. Steel sparks and fine aluminum in a collector that holds wood dust are a fire risk. Use a dedicated metal-rated collector with a spark arrestor, or wet collection, before any metal goes through.
2. Load the removal heads. Ceramic and zirconia self-sharpen only under pressure. Set each removal head for a real cut so the grain fractures; a glazed belt heats the sheet and passes the heat down the line.
3. Set the finishing heads light. At 150 and finer, use platen pressure and a light cut so the scratch is flat and even across 52 inches of width.
4. Keep the feed constant. A speed change shows as a band across the sheet; a stop under any head blues stainless in seconds.
5. Change belts on cut rate. Track amp draw or removal per pass on each head and change the belt before the finish suffers; ceramic in particular keeps cutting until it is spent and then heats the part quickly.
6. Aluminum runs slower. Lower belt speed, cloth AO or grinding-aid zirconia, and a grease stick on the running belt when it loads.
7. Run wet where the line allows and store 52-inch belts hanging on a wide roller, never folded, away from humidity and sunlight; let cold belts warm before mounting.

Use it for / don't use it for

Use it for

• Multi-head deburring of laser, plasma and waterjet parts up to 52 inches wide
• Production graining of stainless sheet and panels
• Weld knockdown and levelling on steel plate and weldments
• Removing mill scale before paint or powder coat
• Finishing aluminum sheet and plate, pre-polish to 600 grit

Don't use it for

• Wood on a line that also runs steel; separate the dust systems
• A finish from ceramic or zirconia above 120 grit; switch to cloth AO
• Ceramic on a head that cannot keep pressure on the grain
• Storing folded or running with a lifted joint

Specifications

Frequently asked questions

Related products and guides

• 52" x 75" Sanding Belts for wood, 2 pack (aluminum oxide and zirconia)
• 52" x 103" Metalworking Sanding Belts, 2 pack
• 53" x 103" Metalworking Sanding Belts, 2 pack
• Surface conditioning belts for the final head
• Custom sanding belts made to order in about 3 days