Multotec’s test work capabilities have developed over the years, borne from intensive R&D to develop new or expand existing industry products.
Our capabilities include test and development work on spiral concentrators, classification cyclones, magnetic separators, samplers and laboratory-scale filtration and centrifuge equipment. Additionally, Multotec now produces equipment prototypes using 3D printing (read more below).
Commodities that are supported by these advanced test work capabilities include Chrome, Coal, Copper, Gold, Iron Ore, Mineral Sands, Platinum, Lithium, Chemical Salts etc.
Multotec’s approach to technology, with regards to test work, consists of:
Multotec customers benefit by knowing what to expect from the ore body. The test work confirms the expected upgrade or informs the customer to reconsider the project as the requirements cannot be met. Multotec’s test work:
Multotec’s R&D plays a fundamental role in product development and in refining existing technologies. This contributes to the Multotec Group maintaining exceptional quality products and high performance standards. Mineral samples (of the above-mentioned commodities) are received from other countries and tested to prove their efficiencies and effectiveness in their specific applications.
In the interests of advancing the industry and its relevant material sciences, Multotec disseminates test results and related R&D technical data to industry. Additionally, the Group’s R&D facilities, including its laboratory facilities, are made available for specific research work for mining houses, universities, plants, OEMs and individual customers.
Laboratory facilities include:
Multotec provides the following test work facilities and services for customers and non-customers alike:
Extensive work has been done concerning spiral applications and Multotec has developed a range of spiral models for gravity concentration. They are designed for use of different applications for a variety of minerals that include Gold, Copper, Iron ore, Chrome, Mineral sands, Tin, Coal and Lithium.
A variety of cyclone configurations according to specific configurations such as classification and dewatering.
Built on the foundation of continuous ion exchange, Multotec uses the Clean-iX process, developed by Australian company CleanTeQ. The platform for metals recovery and process water treatment is similar; the technology is branded Clean-IX for metals recovery and CIF® (Continuous Ionic Filtration) for process water treatment. The laboratory test work includes:
Multotec has a 1 m³/h 2-stage test rig for piloting the Clean-iX / CIF® technology
High intensity separators are used to recover fine, weak magnetic particles from slurries. Medium and low intensity separators are used to recover weak and strong magnetic particles respectively. Magnetic rolls are used to purify or concentrate dry, granular materials. Multotec offers the following magnetic separators for test work:
Typical in-house and on-site filtration test work includes:
This is conducted on Multotec’s state-of-the-art Centrilab.
In-house and on-site centrifuge test work includes:
Multotec developed a screen test rig for screening media product development and optimising screening media selection according to client requirements. The rig consists of 3 platforms:
Laboratory equipment for screen test work consists of several Multotec customised test rigs designed to improve development cycles. The test rigs can be adapted to assist clients with rapid prototyping in other areas and consist of:
Experienced, high-quality, independent in-house ceramic testing and wear characterisation is offered to clients. This test work is used by mineral processing customers, universities, power plants and service providers. The scope of this test work consists of:
To ensure test work information gathered can be replicated in real-time mineral processing, Multotec’s full plant-sized testing facility uses the identical equipment to be installed.
If the required equipment is unavailable, Multotec partners with laboratories like SGS (Geneva-based multinational providing inspection, verification, testing and certification services) and Mintek (the South African autonomous research and development organisation specialising in mineral processing, extractive metallurgy and related technology).
In return, these laboratories use Multotec’s facilities for services they are unable to offer from their own laboratories. Essentially, it is a quid pro quo arrangement which benefits the mineral processing industry as a whole. Additionally:
There is a nominal charge for test work conducted. However, these costs can be offset against the invoice if Multotec’s equipment is ordered as a result of their test work.
In addition to our test work offering, Multotec’s service offering includes technical capabilities, training, field service maintenance and condition monitoring.
To produce prototypes for customers quickly and effectively, Multotec makes use of 3D printing in its own 3D printing facility – bringing designs to life. A prototype can be produced within 24 hours, and allows for physical and visual interaction during concept development. The 3D printed parts are used as pattern to produce a mould for products – like screen panels for example. The subsequent mould is used to make screen panels from the required polyurethane material.
Full sized prototypes can be tested on Multotec’s testing rigs to prove or disprove their practical application before tooling stage begins. Where fine tuning and minor adjustments need to be incorporated into the prototype, reprinting can be done in a short period of time.
3D prototyping aids with continuous improvement to existing tooling, simplifying the process to validate the design and functionality before make the steel parts. Multotec is capable of printing objects of various sizes using 2 types of heat lamination 3D printers, and has invested in an extruder to extrude cords to the same specifications used in the manufacturing process.