Stainless steel tubes developed for use in the food and similar
hygienic applications, such as dairy processing, beer manufacturing
equipment, etc where the transfer of processed food, beverage etc.
free of contamination is an essential requirement.The food industry
generally requires a tube with no weld bead remnant on the inside
surface if the intended service is handling product.
All specifications call for the common grades 304, 304L, 316 and
316L. Round tube manufactured from cold rolled 2B finish strip
using the TIG /Plasma welding method of production without filler.
In this process there are the added steps of lightly polishing the
outside weld to remove traces of weld discolouration and most
importantly the weld bead of the internal bore of the tube is
mechanically compressed or worked” to provide a more even smooth”
surface to prevent the build up of contaminants during food and
general hygiene product processing.
Our stainless steel round tube inside polishing machine is designed
for meeting this requirement for the food grade welded stainless
The round tube inside polishing machine working principle is by
putting the polishing rod into the tube inside which is driven by
motor to drive the flap wheel rotating at high speed, accompanied
by the rotation of tube itself to achieve polishing process, at the
same time the polishing rob will slowly moving forward.
Generally speaking, first use 60 # -80 # flap wheel to roughly
polish the tubes inside surface, the latter according to the
requirements of surface finish gradually apply for fine polishing.
If mechanical polishing can not achieve enough brightness for the
surface finish, we can appropriately use some polishing paste when
Machine main components:
The tube inside polishing machine is composed of machine base, tube
fixing device, walking device, feeding and unloading frame, size
adjusting device and control system.
Machine base is welded by stainless steel plate, strong and robust
enough to make the working progress safe and steady.
Tube fixing device: It is in round type and can rotate. Its
function is to fix the tubes to ensure the polishing rod can be
input into the tube exactly for polishing process. The device can
fix eight pieces of pipe at the same time. When three of the tubes
finished polishing, the pipe fixing device will rotate to unload
them one by one.
Walking device is by applying the poleless reduction motor to
adjust speed. It’s driven by chain or chainwheel to move the
polishing rod head going forward and back. There are three
polishing wheels in each side, and the polishing wheel can be with
different polishing material so that the pipe can be polished into
different grade and no need to change the polishing wheel.
Feeding and unloading frame. The frame use cylinder to control the
straight guide rail to achieve tube feeding, moving and unloading
automatically. Tube needs to be load on the feeding frame
manually.Tube size adjusting device. The device is by adjusting the
tube fixing device up and down to make the tube center height and
the polishing rod head in a line.
Control system. The machine is with PLC control. It has automatic
and manual two modes.
Contact usTel: +86-4008778821+86-757-81809591
|Model||Main Motor(Kw)||Stroke Motor (Kw)||Polishing Speed (m/min)||Surface finish (Grit)|