Used to mix Rubber, Silicone, Abrasives, and PVC compounds. Especially in rubber-processing, mills are built for different
mixing processes.
Features of HHS Mixing Mill Rubber Machine
1. Roller: Made of chilled casting alloy and uniform thickness with
good cooling effect.
2. Frame and cover: Made of steel casting or welded by steel plate,
which have safety strength and high precision machinery.
3. Roller gap adjustment device: Options: manual or electric
adjustment and gap display.
4. Reducer: fully-closed, hardened gear, forced lubrication, high
safety factor, and less noise.
Main Composition of HHS Mixing Mill Rubber Machine
Build Up of Two Roll Mill
A mill is typically assembled on a steel foundation plate, which is
again set on rubber-pads or sound-metals adjustable, to isolate
noise-levels to the building also to avoid tensions on the mill
structure, precisely levelling out of the mill is very important
for smooth operation.
Roller Bearing
Two rigid pillars with removable tops carry the rolls, which are
placed either in friction/bush bearings or high quality
anti-friction roller bearings. Roller bearings are pretty much
standard nowadays, as they allow for 20 – 30 % in power-savings. A
lubrication system is no longer required.
Roller Nip Setting
Adjustment of the front roll used to be made by hand (manual by
ratchet) or later motorized by worm gear.
Nowadays hydraulic pistons adjust the rolls and also protect rolls
from high forces that can build up in between the rolls (roll
safety). They also open roll gap immediately when pushing the
safety bar in front or back in case of emergency (required by
European Safety standards CE).
Rollers
A mixing mill has 2 horizontal rolls set up back to back. They are
made of ground chilled cast iron, with surface hardness ranging
from 475 – 520 HV (Vickers hardness) up to 520 – 580 HV (or 68 - 72
HRC).
