Stone Arc Slab Polishing Machine for Circular Column Slabs

Both machines cover the same 350–2,000 mm arc length on the same vacuum-table platform — the difference is the polishing program. The YHMP-10 runs ten heads at 27.5 kW with a catalog efficiency of 7 mm/m², suiting standard column cladding production where a commercial finish meets the specification. The YHMP-12 adds two heads and 32 kW, raising the catalog efficiency to 8 mm/m² and stretching the abrasive sequence further toward premium gloss — the choice for granite columns and export programs where the finish is inspected closely. If your orders quote a gloss level or your stone is hard granite, choose the 12; if the specification is a standard polished face on marble, the 10 covers it at lower investment. Both machines polish the same 350–2,000 mm arc length, so the decision is purely about the finish program, not the work envelope. Send your finish specification and DINOSAW will map it to the head count.

As the finishing stage of a two-machine cell. The workflow runs in sequence: arc slabs are shaped to the column radius, the YHQJ-2400/2800 trims their edges for assembly fit at 10–20 times manual efficiency, and the YHMP-10/12 then polishes the visible curved face under vacuum fixation and PLC control. Trimming comes before polishing so edges are prepared while the piece is still easy to fixture, and polishing comes last so the finished face is never re-handled by a cutting operation. Factories quoting complete column programs buy the pair together; factories receiving pre-trimmed slabs can start with the YHMP alone and add the trimming stage when volume justifies it. Plants that run the cell typically quote it as a system, because the trimming stage's output defines what the polishing stage can finish. Layout planning places trimming first and polishing last, so the finished face is never re-handled. The cell's combined capacity, not either machine alone, defines the column program.

The catalog lists 7 mm/m² for the YHMP-10 and 8 mm/m² for the YHMP-12 as reference efficiencies, and the real number in your shop will move with four variables: stone hardness sets how aggressively each head can cut; the abrasive sequence — how many heads carry coarse versus fine stages — trades speed against target gloss; slab geometry, including how much of the machinable length is actually used per piece, changes utilization; and setup conditions such as water flow and head pressure keep the sequence in its working window. Track efficiency per stone class after commissioning and treat that as your baseline: the catalog number tells you the machine class, your baseline tells you your production plan. Send your stone and target finish for a configuration review before ordering. Water consumption runs 6–7 m³/h by model, so the utility plan should include recycling where water supply is constrained. The 5–6 t frame anchors the gantry so the heads track the same arc geometry shift after shift.