Grinding head frequency conversion main motor 7.5kw, reducer 4kw, support frame 3, grinding head travel maximum stroke 6000mm, support length 8m, U-turn can be polished in a 12m length round tube, with round tube chuck to adjust the size and lock, Clamping grinding wheel diameter 100×50mm.
FAQ:
Q1:What is the difference between pipe and tube polishing?
A: Pipe polishing
- Focus: Functional performance
Pipes are mainly used to transport fluids or gases
Pipe 👉 More commonly used for large diameters (such as oil transportation, water supply, and drainage)
- Polishing is usually done to:
Remove rust, scale, and weld marks
Improve corrosion resistance
Surface requirements:
Can achieve a mirror finish， Ra≤0.4
- Typical applications:
Oil & gas pipelines
Water supply and drainage
Chemical and industrial piping
Tube polishing
- Focus: Precision and appearance
Tubes are used for mechanical, structural, or decorative purposes
Sizes are defined by outside diameter (OD) and wall thickness
- Polishing aims to:
Achieve smooth or mirror finishes
Improve dimensional accuracy and surface quality
Meet aesthetic or high-precision requirements
- Surface requirements:
Much higher than pipes
Often requires fine polishing or a mirror finish (Ra ≤ 0.2 μm, even 0.1 μm)
- Typical applications:
Stainless steel decorative tubes
Automotive and aerospace components
Furniture, handrails, medical or food-grade tubes
Q2:What grit belt should I use?
A: That depends on the material and the finish you want. The final polishing effect is determined by the polishing process. We can start with an 80-grit abrasive belt for rough polishing, then switch to finer abrasive belts of 120 grit,240 grit,400 grit, and 600 grit. Finally, using a flap wheel and a cloth wheel, we can achieve an 8k mirror finish.
Here’s a quick, practical guide 👇
If you’re starting from a rough surface
P60–P80 → Heavy material removal, weld marks, scale
- General grinding/deburring
P120–P180 → Smoothing scratches, preparing for finer finishing
- Fine finishing
P240–P320 → Satin / brushed finish
P400–P600 → Very fine finish, pre-polish
- Pre-polish / near mirror
P800–P1000 → Pre-polishing before buffing
- Material tips
Stainless steel: P120 → P240 → P400 (then buff if needed)
Carbon steel: P80 → P120 → P240
Aluminum: P180 → P240 → P320 (avoid too coarse)