Wanlong touts automatic stone line polishing machines for high-volume slab finishing

WANLONG says its continuous polishing machines are built to deliver mirror-grade gloss, flatness, and higher throughput for granite and marble slab lines. The company is positioning the equipment for global stone fabricators that want more automation, less rework, and faster commissioning.

Why it matters: - Stone fabricators running high-volume slab lines need consistent gloss, flatness, and throughput. - WANLONG is targeting that need with automatic line polishing machines designed to reduce swirl marks, uneven grinding, and abrasive wear. - The equipment is aimed at architectural granite and marble finishes, where surface quality affects product value and project delivery.

What happened: - Fujian Wanlong Times Technology Co., Ltd. said it manufactures heavy-duty automatic stone line polishing machines for continuous slab processing. - The company says it has operated since 1993. - WANLONG says it supports customers in 180 countries. - WANLONG published technical and sales information at the official portal.

The details: - The LXM-20 model uses 20 independent grinding heads. - The company says its modular configurations range from 8 to 20 spindles. - WANLONG says the machines handle slab widths from 500 mm to 1300 mm. - The polishing sequence moves from coarse diamond grinding to intermediate honing and ultra-fine resin polishing. - Independent pneumatic cylinders apply calibrated downward pressure to keep contact uniform across stone variation. - Crossbeam oscillation is synchronized to support planar flatness and reduce directional grinding lines. - Internal water channels deliver 22 cubic meters of cooling water per hour to the grinding interface. - WANLONG says the cooling flow clears slurry, preserves tool sharpness, and helps prevent thermal micro-cracks. - The frame uses a heavy stress-relieved steel chassis, precision ground guide rails, and a 20-ton structural design for vibration control. - The spindle box uses NSK bearings and an automatic timed lubrication system. - The conveyor uses a heavy-duty continuous rubber belt with variable frequency drives that regulate travel between 0 and 3 m/min. - Taiwan Airtac pneumatic cylinders and multi-labyrinth seals are part of the transport and protection setup. - WANLONG says the LXM series uses Mitsubishi PLC controllers, LCD touchscreen interfaces, and Yaskawa inverter drives. - A laser scanning device detects slab profiles, contours, and thickness variations at the infeed. - Rotary encoders support head-position tracking and collision-avoidance sequences. - Operators can store polishing recipes, adjust oscillation, and monitor machine alarms from the central console. - WANLONG says manufacturing follows SGS ISO 9001:2015 quality management standards and the European Machinery Directive 2006/42/EC. - The company says its design also meets EN 12418:2021, EN ISO 12100:2010, and EN 60204-1:2018. - WANLONG says every machine undergoes Factory Acceptance Testing before shipment. - Test procedures include 48-hour dry-run simulations, spindle concentricity checks, dynamic balance checks, and pneumatic pressure response tests. - Buyers receive quality inspection certificates and Declarations of Conformity with shipment. - WANLONG says it offers on-site commissioning, operator training, IoT remote diagnostics, and spare parts support. - The company also offers Disc-Type and Fickert-Type grinding head configurations. - WANLONG says drive power, water use, compressed air, and floor-loading needs scale with head count and machine footprint.

Between the lines: - The pitch is not just about polishing quality. It is also about reducing manual intervention in a process that can create costly rework. - The 8-to-20 spindle range suggests WANLONG is aiming at different plant sizes and output targets rather than a single fixed production setup. - The emphasis on compliance documents, testing, and overseas support suggests the company is courting international buyers that need smoother customs clearance and faster installation. - The release presents operational gains such as lower labor overhead and higher daily output as expected benefits, not independently verified results.

What's next: - WANLONG is directing buyers to request technical brochures, custom workshop layout proposals, engineering consultations, and wholesale quotations through its portal. - The company is also positioning the machines as part of broader factory line integration, linking block cutting, polishing, and edge profiling in one workflow.

The bottom line: - WANLONG is selling continuous stone polishing as an automation and quality-control problem, not just a finishing step. - The message to buyers: higher gloss, tighter flatness, and less manual rework may come from more controlled, higher-capacity line equipment.