Automatic Bullnose Machine for Stone Edge Profiling and Polishing

The machine covers strips 20–200 mm wide and 10–100 mm thick, with two 200 mm shaping wheels cutting the profile and six polishing wheels finishing it. The shaping wheels define the profile geometry — bullnose and shaped profiles within the wheel's cutting capability — and the polishing train refines whatever the shapers form, so the practical profile range follows the wheel set fitted. Speed runs 0.3–1.0 m/min depending on stone and finish: granite at the slower end with hard-bond wheels, marble faster. For programs mixing widths, the fixturing adjusts between batches and stores the setup per product. If your profile exceeds the standard wheel range, send the section drawing: profile-specific wheel sets are the configuration path, and DINOSAW confirms feasibility against the 50 mm spindle and 2,500 r/min platform before quoting. The 0–3,000 mm/min polishing-set lift is the feature that makes mixed-thickness batches practical without stopping the line. For very wide build-ups beyond 200 mm, bridge-type edge polishers remain the right tool.

As the finishing station of a strip line. The typical flow runs: slabs slit to strips on the DPJ-class sizing machines or cut on the bridge saw, strips feed into the LXMB-8 at dimension, and the line returns them with shaped, polished edges ready for packing. Because the sizing stage holds strip dimensions and the LXMB-8 holds edge parameters, the whole line runs on stored programs — no re-measuring between stations. Layout planning matters: minimize handling between sizing and edging, because every manual transfer is where edges chip and dimensions drift. For volume programs, position the machines in direct flow with roller transfer; for mixed programs, a buffer table between stages absorbs scheduling differences. Either way, quoting the line as a system — sizing plus edging — gives a cleaner production plan than quoting machines individually. The 65 kW draw is the number to size into the electrical plan, with the 250 L/min water circuit alongside it.

Five inputs drive the configuration. Your strip envelope — the width range, thickness range and typical lengths — confirms the machine covers your products within 20–200 mm and 10–100 mm. Your profile list: the edge sections you run most, ideally with drawings or photos, determines the shaping wheel set. Your stone classes set the speed program and wheel bond recommendations — granite and marble run at different points of the 0.3–1.0 m/min range. Your volume per profile sets the production plan: the line earns its place on repeated batches, so the mix of repeating to one-off work decides the line-versus-single-machine answer. And your utilities: 65 kW total power and 250 L/min of water, plus the 6.4 × 2 m floor space. With these, DINOSAW returns a configuration covering wheels, speeds and line integration rather than a catalog default. Batch programs should be quoted with the wheel set included, since the profile range follows the wheels fitted.