Custom 55L Capacity Internal Mixer Machine For Rubber Compounding
Product brief introduction
The 55L internal mixer is engineered to effectively mix, knead, and
disperse various chemical materials, including EVA, rubber,
synthetic rubber, and hot melt adhesives. It plays a crucial role
in developing experimental formulations that can be smoothly scaled
up to production-level processes. With its robust and
wear-resistant construction, the mixer guarantees even blending and
stable modification of material characteristics, ensuring
consistent and high-quality mixing outcomes.
Technical Data
| CF-25L | CF-35L | CF-55L | CF-75L | CF-110L | CF-150L |
Total Volume of
Mixing Chamber | L | 45 | 75 | 125 | 180 | 250 | 380 |
Working Capacity
of Mixing | L | 25 | 35 | 55 | 75 | 110 | 150 |
| Driving Motor Power | kw | 37 | 55 | 75 | 110 | 160 | 220 |
| Tilting Angle | O | 110 | 110 | 110 | 110 | 110 | 110 |
Rotational Speed
of the Protor(front/rear) | r/min | 38/32 | 38/32 | 38/32 | 38/32 | 38/32 | 38/32 |
| Air Compression Pressure | MPa | ≥0.6-0.8 | ≥0.6-0.8 | ≥0.6-0.8 | ≥0.6-0.8 | ≥0.6-0.8 | ≥0.6-0.8 |
| Net Weight | kg | 4000 | 6300 | 7500 | 10300 | 14200 | 18000 |
| Product Size | mm | 2750*1750*2750 | 2900*2000*3000 | 3450*2300*3400 | 3600*2300*3900 | 3800*2550*3900 | 4700*3350*4000 |
Working Principle of Internal Mixer
Inside the mixing chamber, the two rotors rotate at a specific
speed ratio relative to each other, drawing the material from the
feeding port into the gap between the rollers. There, it is
subjected to strong squeezing and shearing forces. After passing
through the roller gap, the material strikes the sharp “W”-shaped
edge of the mixing chamber and splits into two streams, which flow
along the gaps between the front and rear chamber walls and the
rotors before returning to the top area. Within the sealed chamber,
the material undergoes intense shearing and mixing under controlled
pressure and temperature, ensuring that all components in the
formulation are thoroughly dispersed and plasticized, allowing the
formulation to achieve optimal performance.
Product Superiority
The mixer uses elliptic shear rotors, whose surfaces are coated
with wear-resistant surfacing hard alloy. The inner walls of the
mixing chamber are treated with hard chrome plating, providing
excellent resistance to wear and corrosion, thereby extending the
equipment’s service life.
A circulating channel structure is designed to enable the flow of
heating or cooling media through the rotor, mixing chamber, and top
ram. Depending on production needs, temperature control can be
achieved using steam, oil, electric heating, or cooling water.
The system features an advanced sealing design that ensures stable
and reliable operation.
The top ram applies pressure to the material through a pneumatic
cylinder, ensuring uniform kneading and improving production
efficiency. The electrical control system uses well-known domestic
brands and supports both manual and automatic modes, making
operation simple, flexible, and dependable.
Technical advantages
A. Changfeng’s anti-leakage powder system utilizes a mechanical
shaft seal compression design combined with a self-lubricating
sealing ring. This ensures the ring remains tightly sealed
throughout the mixing process. The self-lubricating feature
minimizes wear on the mixing components and effectively reduces
noise issues—such as whistling—caused by leakage or inadequate
sealing.
B. The inner structure of the mixing chamber features a complex
tubular belt design that provides excellent heat exchange and
precise temperature regulation. The rotor is equipped with a
water-cooling system, which helps prevent material adhesion,
maintains accurate temperature control, and promotes more uniform
material dispersion.
After-sales Service
During normal use, non-consumable parts are guaranteed for one
year. We provide on-site installation guidance and long-term
technical support.
Note: Electrical components and motors are imported from Taiwan and
foreign brands.
