{"product_id":"pcd-2-segment-with-wear-bar-left","title":"Segmento PCD 2 con barra de desgaste – Izquierda","description":"\u003cp\u003e\u003cstrong\u003e- Less-aggressive PCD coating-removal tool with fewer cutting points\u003c\/strong\u003e — Lavina-platform PCD tool with two polycrystalline diamond segments paired with a sacrificial wear bar (also called a trailing diamond strip). The wear bar fundamentally changes the PCD's behavior: it stabilizes the segment, acts as a depth guide, and prevents the PCDs from biting too deeply into the concrete underneath. Best for thinner coatings, mastics, glues, paints, and \u003cstrong\u003efailing epoxy coatings up to 30 mils thick.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e- 2-segment configuration concentrates cutting pressure on each tooth\u003c\/strong\u003e — fewer segments means more pressure per PCD, which speeds the cut on harder or more stubborn coatings — but also accelerates wear on the segments themselves. The 2-segment + wear bar layout is the right pick when the coating is tough enough to resist a 3-segment cut but the slab underneath still needs protecting. Trade-off: shorter tool life than the 3-segment version at comparable pricing.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e- \"Left\" = counter-clockwise rotation — direction matters\u003c\/strong\u003e — PCD scraper teeth are direction-locked: the cutting edge is angled to bite during rotation in one specific direction only. Left-rotation tools are for grinders that spin counter-clockwise (viewed from above). \u003cstrong\u003eCritical rule for planetary \/ rotary grinders with counter-rotating heads: order half left and half right\u003c\/strong\u003e to balance the machine. Running all same-direction PCDs on a counter-rotating machine causes severe walking, unbalanced cut, and accelerated tool wear.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e- The right tool when \"protect the slab\" matters more than \"remove fast\"\u003c\/strong\u003e — for thick coatings, urethane, or coatings with silica-sand broadcast mixed in, PCDs \u003cstrong\u003ewithout\u003c\/strong\u003e a wear bar are the faster choice — but they leave deep gouges. For surface prep where the underlying concrete will be re-coated (or stained, or polished) and contractors don't want to grind through extra steps to clean up scratches, the wear-bar version saves time downstream by leaving a cleaner profile in the first place.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e- Standard Lavina QC mounting, 30-mil coating ceiling, follow-up grinding still required\u003c\/strong\u003e — fits Lavina, Onfloor, Edco Magnatrap, and other Lavina-pattern grinders directly. \u003cstrong\u003eCoating thickness limit: 30 mils\u003c\/strong\u003e (above that, the wear bar can't keep up with the cut and the tool loads up). Recommended RPM: 550–650 for electric grinders. Even with the wear bar, plan a follow-up metal-bond grinding pass (typically 25 or 30 grit) before coating, staining, or polishing — the wear bar reduces gouging, not eliminates it. Best paired with shrouded grinders + HEPA vacuums for OSHA silica compliance (29 CFR 1926.1153).\u003c\/p\u003e","brand":"Xiamen Murat Tool Ltd.","offers":[{"title":"Default Title","offer_id":49805843988761,"sku":"40007393","price":36.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0883\/9803\/7273\/files\/BC_Upload_0153b14f-d9fa-4d23-82aa-7d4edbc0dc2b.png?v=1728921510","url":"https:\/\/shop.simiron.com\/es\/products\/pcd-2-segment-with-wear-bar-left","provider":"Simiron","version":"1.0","type":"link"}