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Round tube inner polishing machine

本设备为内圆抛光专用设备，适用于各类不锈钢筒体、圆管工件内壁的打磨与抛光。整机结构紧凑，采用底座行走、立柱移动、罐体旋转的方式实现抛光全覆盖，可选用千叶轮、布轮、麻轮等多种耗材，满足不同粗糙度和光洁度要求。磨头安装在横梁前端，由电动机通过联轴器驱动，后端配有气缸铰链浮动装置，保证抛光过程中的稳定性与柔性。横梁上下可点动调节，方便精确控制磨头位置，实现高效、均匀的内壁抛光处理。

Round tube inner polishing machine XYD-PP

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Introduction
Video

The Internal Round tube inner Machine is designed for precision polishing of stainless steel pipes, cylinders, and small-to-medium tanks. With a robust structure, adjustable roller support system, and variable-speed control, this machine ensures smooth, uniform polishing inside cylindrical workpieces with diameters from 350 mm to 1000 mm and a single polishing length up to 3000 mm.

1. Machine Specifications

Overall Dimensions (L×W×H): 4200 × 1600 × 2000 mm
Total Weight: 2500 kg
Main Motor Power: 4 kW
Polishing Head: Interchangeable flap wheel / cloth wheel
Applicable Pipe Diameter: Ø350–1000 mm
Max. Single Polishing Length: 3000 mm

Length and other specifications can be customized upon request.

2. Roller Support System

Integrated 1-ton adjustable roller table
Equipped with six Ø150 mm polyurethane rollers
Driven by a 370 W motor paired with NMRV050 (1:80) reducer
One side features linked front–middle–rear rollers via two connecting rods for synchronized movement
Anti-skid / anti-shift device to ensure stable rotation and prevent axial movement
Adjustable height to accommodate different pipe diameters

3. Motion & Control

Beam left–right travel controlled by a variable frequency inverter
Workpiece rotation with VFD speed regulation
Adjustable polishing head positioning to fit internal curvature
Variable-speed settings for rough, fine, and mirror polishing processes

4. Key Features

Delivers uniform internal surface finishing with consistent polishing quality
Strong mechanical structure suitable for long-duration industrial use
Fast changeover between flap wheels and cloth wheels
Stable rotation and feeding ensure high polishing accuracy
Low maintenance and user-friendly operation