Production Scale Basketmill – TORUSMILL SK4

Multi-Purpose Laboratory Dissolver
For mixing, dispersion, vacuum dispersion, homogenization, and fine grinding.

TORUSMILL® SK4 is a high-efficiency immersion basket mill that delivers excellent grinding results in a very short time. Designed for processing low to medium-viscosity products, it is available with motor power options ranging from 15 kW to 22 kW. The SK4’s clamping system is compatible with container sizes up to 750 liters.

Key Features:
Efficient circulation of the millbase through the grinding basket is achieved via an integrated, patented pump wheel, allowing a high number of passes and resulting in narrow particle size distribution.
A dissolver disc mounted beneath the basket ensures minimal dead space and thorough processing of the product.
The double-walled grinding basket supports cooling and heating, with a spirally directed coolant system for optimal heat dissipation.
Easy scale-up from the TORUSMILL® TML laboratory basket mill to the SK4 production model.
Compatible with containers of varying volumes, enabling flexible use of existing customer containers.

Integrated Lid:
The fixed lid of the TORUSMILL® SK4 allows easy height adjustment of the shaft during the fine grinding process and rests securely on the container during operation. The lid includes a standard product feed system and can be optionally equipped with:

LED lighting
PT100 temperature sensor
Liquiphant level switch (also for ATEX zones)
Viewing glasses and various filling funnels

H4 Compact Stand:
The SK4 comes mounted on the H4 compact stand, featuring integrated electric height adjustment via an innovative telescopic column. The mill can be anchored directly to an industrial floor. Optional stand feet are available. An external groove system on the column allows easy and secure mounting of various accessories to the basket mill.

CN Technology Control Panel
  • DISPERWHEEL® Speed Control
    Stepless variable speed adjustment via intelligent control dial
  • Digital Displays
    Indication of speed, time, torque, product temperature, and the height of the dispersing tool and safety device
  • Timer
    Timer function showing both preset duration and elapsed time
  • Height Adjustment
    Control of the drive motor’s suitable height adjustment via foil keypad
  • DISPERSAFE®
    TÜV-certified safety module for the use of containers of varying sizes without circuit breakers or mechanical mechanisms
  • Height Measurement
    Adjustable working range for different container sizes
  • Foil Keypad
    Splash-proof and solvent-resistant wipe-clean foil keypad
CN-Technology
C Technology Control Panel
  • Graphic Display
    Indicates speed, torque, power, product temperature, time, peripheral speed, and the height of the dispersing disc
  • Repeatability
    Selectable dispersion method for optimum repeatability: dispersion with constant speed or constant power input
  • Data Logging
    Real-time recording of process parameters with graphical representation over time
  • Automatic Shutdown
    Automatic stop or deceleration when preset temperature, speed, torque, or power values are reached
  • Database
    Up to 100 different configuration presets for parameters such as H1, H2, speed, time settings, and auto-stop
  • Power Compensation
    Net power calibration ensures that the power value shown on the device display reflects the actual energy transferred to the product
  • Height Adjustment
    Adjustable working range for containers of different sizes
  • WINDISP7
    Data interface for WINDISP7 software for documentation, analysis, R&D, and quality control applications
SK Technology Control Panel
  • Speed Control:
    Infinitely variable speed adjustment
  • Digital Display:
    For speed, current (amperage), and product temperature (optional)
  • Height Adjustment:
    Height adjustment suitable for the drive motor
  • Basket Emptying:
    Control element for emptying the grinding basket
  • Operator Controls:
    For power, start, stop, and emergency stop functions
PLC Technology Control Panel

The graphic display provides a visualization of key operating parameters such as speed, power output, peripheral speed of the milling tool, torque, and product temperature. The combination of the graphic display and standardized PLC control enables the control system to be easily adapted or expanded for other process control applications at any time.

The TORUSMILL® SK is equipped with safety devices in compliance with CE standards and local occupational safety regulations.

Fine Grinding Process with the TORUSMILL® SK Basket Mill

The container holding the pre-mixed liquid component is placed under the TORUSMILL® SK and securely fixed. The grinding basket is then immersed into the liquid to be milled.

At this stage, the TORUSMILL® SK begins the main dispersion process for fine grinding. Once the desired fineness has been achieved, the dissolver blade and grinding system are raised above the product surface, and the product remaining in the grinding basket is centrifuged by briefly operating the dissolver blade and grinding system.

Subsequently, the grinding system is fully raised, and the container filled with the ground product is removed for the next processing steps. Cleaning of the grinding system is performed in a separate conical container to minimize the amount of cleaning liquid required.