Horizontal Metal Ball Grinding Machine

The rotating plate is machined and assembled to hold radial and end-face runout within 0.01 mm. Combined with imported main spindle bearings and hydraulic headstock positioning on linear roller guides, the machine maintains tight geometric tolerances on every ball throughout the lapping cycle.

Five models span ball diameters from Φ3 mm (BO-7670) to Φ76.2 mm (BO-4690 / BO-7690), with maximum batch loads from 250 kg to 1,100 kg. Lapping plates range from 700 mm to 900 mm in diameter, so a single machine line can serve multiple product families without outsourcing.

Both the main spindle and the feeding plate use frequency-conversion drives, giving operators continuous speed adjustment rather than fixed steps. This allows fine-tuning of material removal rate, surface roughness, and cycle time for steel, stainless steel, chrome, or ceramic balls.

The PC-based control system includes a ball-pile switch at the inlet to detect feed irregularities and a spindle-stop protection device that halts operation if abnormal loads are detected. These features reduce scrap, protect the lapping plates, and lower the risk of unplanned downtime.

The pressure mechanism is structurally separated from the sliding components, preventing cross-wear. Oil-splash lubrication keeps main spindle bearings within optimal temperature range during continuous production, extending bearing replacement intervals and reducing maintenance scheduling.