1. Product Overview
The CNC Industrial Polishing Machine is engineered for automated
surface finishing of large cylindrical tanks and dished heads ranging from
φ1000mm to φ5000mm.
It features a precision CNC control system, a high-efficiency
variable-frequency polishing head, and a heavy-duty rotary table.
The equipment supports multiple polishing processes, including
brushed finish and mirror polishing,
ensuring high surface quality with consistent and repeatable results.
Constructed with a robust base, column, horizontal beam, dual polishing heads,
and an integrated control cabinet, the machine delivers full-axis automation,
high adaptability, and significantly reduced manual labor.
2. Key Product Features
- CNC Precision Control
Fully automated polishing paths managed via CNC system,
ensuring high repeatability and precise surface treatment. - Variable-Frequency High-Torque Spindle
5.5kW motor with frequency-converter control delivers stable
and adjustable speed for various polishing requirements. - Multi-Tool Compatibility
Quick interchange between abrasive belt, flap wheel,
sisal wheel, and cloth buff enables efficient multi-step processing. - High-Level Automation
Automatic movement across X/Y/Z axes synchronized with workpiece rotation
ensures uniform, efficient, and consistent polishing performance.
3. Technical Specifications & Processing Range
| Category | Specification |
|---|---|
| Workpiece Range | φ1000–φ5000mm (tanks & dished heads, internal & external) |
| Vertical Height | 2500mm (upright tank placement) |
| Load Capacity | 1–20 tons (5 tons standard) |
| Total Power | Approx. 12kW |
| Spindle Motor | 5.5kW variable-frequency motor |
| Axis Drives | Four frequency inverters: vertical (2×), horizontal, rotary |
| Beam Stroke | Max. 5000mm |
| Supported Tools | Abrasive belt (2540×50mm), flap wheel (φ250×50mm), sisal wheel, cloth buff |
| Surface Finish | Ra ≤ 0.4μm (mirror level) |
| Production Rate | Up to 10㎡/hour (continuous operation) |
| Machine Size | L6000 × W800 (embedded base) × H5000mm |
4. Application Fields
- Chemical Processing Equipment:
Polishing of large reaction vessels and pressure tanks - Food & Beverage Industry:
Mirror polishing of stainless steel storage tanks - Pharmaceutical Manufacturing:
CIP/SIP-compliant surface brushing of process containers - Energy Sector:
LNG tank seam finishing and oil & gas container polishing - Shipbuilding & Environmental Equipment:
External shell polishing of large tanks

