TWIN ROTAWEIGH : Double-stage rotary weigh feeder
- HASLER Group
- DOSING
- TWIN ROTAWEIGH : Double-stage rotary weigh feeder
TWIN ROTAWEIGH : Double-stage rotary weigh feeder for precise dosing of powders
The TWIN ROTAWEIGH rotating-cell weigh feeder is designed for the continuous dosing and industrial weighing of fine-grained or powdered products from a silo. This is a two-stage horizontal cellular-impeller feeder with a built-in weighing system.
With its exceptional mechanical and electrical robustness, it gives industrial companies the benefit of a 24/7 weigh feeder function with an availability rate of over 99% and constant high-precision measurement.
This rotary weigh feeder is ideal for low flow rates (from 2 to 150 m3/h) and cases where the behaviour of the material is not constant (variations due to humidity, temperature and composition of the material). Its dual-chamber design allows the fusion of the material to be controlled.
Technical sheet
ADVANTAGES OF THE TWIN ROTAWEIGH, THE DOUBLE-STAGE ROTARY WEIGH FEEDER
CONSTANT HIGH-PRECISION MEASUREMENT
With a precision of ±0.5%, this rotary weigh feeder guarantees reliable, accurate results in industrial dosing for low flow rates (from 2 to 150 m3/h).
ADVANCED PERFORMANCE
With a torque limiter built into the motor, this industrial double-stage rotary weigh feeder ensures precise control of the rotation and regulation of the weighing system.
REDUCED FOOTPRINT
Materials enter and exit in the same vertical axis, optimising the footprint.
CONTROL OVER MATERIAL BEHAVIOUR
The dual-chamber design allows the fusion of the material to be controlled.
COMPLETELY SEALED
This industrial dosing equipment is perfectly sealed, ensuring it operates accurately even in harsh industrial environments. It blocks the upstream flow in the event of damage.
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.
FLEXIBILITY OF INSTALLATION
The TWIN ROTAWEIGH can either be mounted on a frame or suspended directly beneath the silo, allowing it to adapt to different plant configurations.
MODULARITY
Available in a wide variety of sizes and configurations, it is suitable for a broad range of applications.
APPLICATIONS OF THE TWIN ROTAWEIGH, THE DOUBLE-STAGE ROTARY WEIGH FEEDER
The TWIN ROTAWEIGH two-stage rotary weigh feeder is specially designed for continuous industrial processes needing to measure and weigh fine-grained or powdered products whose behaviour is not constant (variations due to humidity, temperature and material composition). Its design enables it to be used in a wide range of industrial applications:
CEMENT INDUSTRY
Cement, kiln feed, ball mill feed…
COSMETICS INDUSTRY
Cosmetic pigments, powders…
FOOD INDUSTRY
Flour, powdered sugar, food additives…
CHEMICAL INDUSTRY
Chemical powders, pigments, dyes…
DESCRIPTION OF THE TWIN ROTAWEIGH, THE DOUBLE-STAGE ROTARY WEIGH FEEDER
Operating principle :
The TWIN ROTAWEIGH is an industrial feeder equipped with two-stage horizontal cellular impellers and a weighing system. It transports the product over a full turn divided into two half-turns, one in the upper chamber and one in the lower chamber. This means that the product inlet and outlet are aligned, optimising the footprint. This specific arrangement excludes the influence of the weight of the column of material stored above, as well as pressure variations in the outlet pipe during weighing.
This continuous dosing equipment is suspended from connectors connected to a load cell, indicating the mass of material present in the machine. The rotation speed is adjusted to maintain a constant flow rate, corresponding to the pre-established setpoint.
The TWIN ROTAWEIGH range of double-stage rotary weigh feeders can handle flow rates from 2 m³/h to 800 m³/h. Different impeller diameters and drive sizes are also available to cover a wide range of flow rates.
Main features :
/ High-precision, consistent dosing : ± 0,5%
/ Low moisture content of material : < 1 %
/ Particle size : < 1 mm
/ Several diameters available : refer to the technical data sheet available to download at the top of this page
/ Quantity weighed over 360°
/ Fully sealed
/ Reduced footprint
/ High-temperature version : up to 130°C in continuous operation
/ Integration of an ABS system (torque limiter built into the motor)
/ Rotation control
/ Control : the TWIN ROTAWEIGH rotary weigh feeder is controlled by the SCM 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 touch-sensitive PDU console. Discover the SCMIII.
/ Options available : digital sensors, ATEX version, maintenance kit.
HASLER GROUP GLOBAL SUPPORT SERVICES FOR INDUSTRIAL DOSING SOLUTIONS
To improve the performance of your equipment and the availability of your industrial installations, our experts can help you with :
/ On-site services such as assembly and commissioning, preventive and predictive maintenance and remote assistance.
/ Technical audits or industrial process audits and tests : testing feed precision.
/ Feeder training to boost the skills of your maintenance or production teams in the use and maintenance of your industrial rotary feeders.
/ 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.
/ 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).