1. Product Overview
The Dished End Polishing Machine is an advanced polishing solution
specifically designed for the pressure vessel, chemical processing,
shipbuilding, and aerospace industries.
It features a reinforced base, a high-power 5.5kW polishing head,
and a smart three-axis frequency-controlled motion system.
Capable of handling dished heads from φ500mm to φ3000mm,
the machine delivers Ra ≤ 0.4μm mirror-finish results
using a full range of abrasive tools.
With quick-change tool integration, a heavy-duty rotary table,
and power-optimized operation, it provides a highly efficient
and adaptable polishing platform.
2. Key Features
- Heavy-Duty Workpiece Support
Standard 1-ton rotary table, upgradeable to 20 tons.
Reinforced structure supports long-term continuous operation. - Rapid Multi-Tool Switching
Supports fast switching between abrasive belt, flap wheel,
sisal wheel, and cloth wheel in under 2 minutes.
Suitable for 60–800 grit polishing sequences. - Smart Motion & Power Efficiency
Equipped with a three-axis frequency inverter system and adaptive
power management, saving up to 35% energy compared with
conventional machines. - Precision Polishing System
Delivers surface roughness up to Ra ≤ 0.4μm,
meeting demanding requirements for internal welds,
outer surfaces, and complex curves. - Comprehensive After-Sales Support
Includes free polishing process setup, 3-year warranty on core parts,
24/7 remote technical support, and free operator training.
3. Technical Specifications & Working Range
| Category | Specification |
|---|---|
| Working Range | φ500–3000mm dished heads (inner and outer surfaces) |
| Power System | Total power: 8kW; 5.5kW 2-pole polishing motor |
| Control System | Three-axis frequency-controlled drive (beam / table / polishing head) |
| Speed Range | Adjustable rotation speed: 1–20 rpm |
| Polishing Tools | Abrasive belt (2000×50mm), flap wheel (φ250×50mm), sisal wheel, cloth wheel |
| Surface Finish | Ra ≤ 0.4μm; supports 60–800 grit polishing sequence |
| Efficiency | Up to 8㎡/hour under mirror finish conditions |
| Table Load | Standard: 1 ton; Optional upgrade: up to 20 tons |
4. Application Scenarios
- Pressure Vessel Manufacturing:
Mirror polishing of nuclear-grade dished heads - Chemical Equipment Fabrication:
Polishing of reactor head weld seams and surfaces - Shipbuilding Industry:
Surface finishing of large stainless steel dished heads - Aerospace Manufacturing:
High-precision polishing of fuel tank heads



