ROTAWEIGH : Rotary weigh feeder for powders
- HASLER Group
- DOSING
- ROTAWEIGH : Rotary weigh feeder for powders
ROTAWEIGH: Precision rotary weigh feeding of high-volume powders
The ROTAWEIGH is a multi-cell rotary weigh feeder for continuous industrial processes (24/7) requiring high flow rates of up to 600 m3/h with availability > 99% and constant accurate measurement.
Its vertical design allows entry and exit on the same axis, reducing the footprint. Fully enclosed, the ROTAWEIGH rotary feeder keeps out dust from the surroundings. Maintenance is quick and easy, because the equipment can be dismantled on site and does not need to be moved to a workshop, reducing operating costs (low OPEX).
Designed in the 1960s, this precision industrial dosing device is used for powdery materials. It is designed for use in harsh environments, including cement works and the mining and metals industries.
Technical sheet
ADVANTAGES OF THE ROTARY WEIGH FEEDER ROTAWEIGH
CONSTANT HIGH-PRECISION MEASUREMENT
This dosing solution guarantees accurate, consistent feeding with measurements precise to ±0.5%, ensuring reliable results.
PERFORMANCE
Actual speed measurement, regulation using the motor's built-in torque limiter, rotation control.
REDUCED FOOTPRINT
Materials enter and exit in the same vertical axis, optimising the footprint.
FAST, SIMPLIFIED MAINTENANCE
Low OPEX – maintenance is carried out directly on site in one or two days, with no need to move the equipment to a workshop.
GREAT ROBUSTNESS
Designed to last, it has great mechanical and electrical strength, 24 hours a day, 7 days a week. The high-temperature version offers continuous thermal resistance up to 130°C.
COMPLETELY SEALED
This rotary feeder is perfectly sealed, ensuring it operates accurately even in harsh industrial environments. It blocks the upstream flow in the event of damage.
MODULARITY
Available in a wide variety of sizes and configurations, it is suitable for a broad range of applications.
EASY ACCESS
The ROTAWEIGH rotary feeder is fitted with inspection hatches for accessing the inside of the drum.
APPLICATIONS OF THE ROTARY WEIGH FEEDER ROTAWEIGH
CEMENT MANUFACTURING
Supplying cement and meal to kilns and producing cement mixes…
MINERALS AND METALS
Mineral dust…
DESCRIPTION AND OPERATING MODE OF THE ROTARY WEIGH FEEDER
Description:
The ROTAWEIGH is a multi-cell rotary weigh feeder supplied from above via a regulated flow control valve. The materials are fed in and out on a vertical axis, optimising the footprint.
To ensure optimum accuracy, the neutral point of the weighing system is aligned with the material inlet axis, eliminating any influence from the incoming material. The rotation speed is carefully adjusted to maintain a constant measured flow rate, corresponding perfectly with the required setpoint.
The ROTAWEIGH rotary feeder can easily be maintained on site.
The main features of this rotary feeder are:
/ Precise, consistent dosing : ± 0,5%
/ Low moisture content of the material : < 1%
/ Small particle size : < 1 mm
/ 270° weighing for precise measurement
/ Reduced footprint with the inlet and outlet in the same vertical axis
/ Integration of an ABS system (torque limiter built into the motor)
/ Rotation control
/ High-temperature version : up to 130°C in continuous operation
/ Control: the ROTAWEIGH rotary weigh feeder is controlled by the SCMIII control module. Connected directly to the sensors, it collects the data and signals needed to calculate the flow rate, totals and the regulation function. Information and any alarms generated during the feed process are also transmitted and displayed on the PDU console. Discover the SCMIII controller.
/ Options available : analogue sensors, ATEX version, maintenance kit.
Operating mode :
/ This industrial rotary weigh feeder calculates the flow rate by multiplying load by speed. The load represents the quantity of material present inside the drum (filling the cells) and the speed is determined by the rotation of the rotor.
/ The controller linked to the machine keeps the flow rate constant by modifying the rotation speed according to the load measured and the setpoint applied.
/ Depending on the application, an extraction device may be required. In this case, the SCMIII controller will have the function of regulating extraction to ensure that the flow remains as constant as possible in the feeder.
The ROTAWEIGH can be controlled directly via the SCMIII FIELD or PANEL controller, enabling you to monitor all operations visually on a touch screen. This multi-cell rotary weigh feeder for powders is also available in a double-stage version: discover the TWIN ROTAWEIGH.
HASLER GROUP GLOBAL SUPPORT SERVICE
To improve the performance of your equipment and the availability of your industrial installations, our experts can help you with:
/ Technical audits or industrial process audits and tests: testing feed precision.
/ On-site services such as assembly and commissioning, preventive and predictive maintenance and remote assistance.
/ Supplies of material tests and simulations.
/ Revamping, retrofit and upgrade services to make your feeder equipment more reliable: obsolescence of the SCM/RMS automation system, remote assistance.
/ Revamping/retrofit services to improve your industrial feeder processes: Changes to processes (flow rate, materials), production defects (clogging, fusing, feeder precision), extended operating range (speed 1–100%).
/ Retrofit and mechanical revamping services for your feeder equipment: abrasion resistance (belt), calibration chain.
/ Revamping/retrofit/upgrade services for your ATEX compatibility.
/ Feeder training to boost the skills of your maintenance or production teams in the use and maintenance of your industrial rotary feeders.
/ Advice on repairs and supplies of spare parts: controller, electronic boards (I/O, communication, etc.), display and programming consoles, weight sensors (digital and analogue), mechanical parts (rollers, drums, extrusion screws, etc.), rubber belts, metal weighing elements, speed measurement (encoders, measuring wheels), etc.