MINOX Siebtechnik GmbH
Interpark
76877 Offenbach an der Queich
Deutschland
Telefon: +49 6348 / 98 28-0
Fax: +49 6348 / 40 86

MTS Tumbler screening machines

MTS MTS MTS

Modular design for easy handling

  • Model sizes: 600 – 1000 – 1200 – 1600 –2000 – 2400 and 2600 mm in diameter, with up to 5 decks
  • Specifications: mild steel, stainless steel or finishing on choice
  • Circular construction with central material feed, variable outlet positions and easy to clean
  • Automatic centring of the screens
  • Food-safe U-shaped silicon gaskets enable easy fitting
  • Patented adjustment system allows the operating parameters to be set quickly and simply
  • Screening motion independent of throughput
  • No oversize grains in the fine material
  • Fragile materials and agglomerates are not destroyed
  • Particularly suitable for very lightdense materials
  • Machines are shipped ready for operation and preset for the relevant product – in 90 per cent of all cases no further adjustment is necessary
  • Low height and modest power requirements
  • Compatible with other tumbler screen machines
  • MINOX-patented Pneumatic lifting system for fast and save screen exchange
  • MINOX-patented baloncing system for low dynamic loads on foundation

Model MTS
600
MTS
1000
MTS
1200
MTS
1600
MTS
2000
MTS
2400
MTS
2600
Diameter (mm) 600 1000 1200 1600 2000 2400 2600
Screen area /deck (m²) 0,29 0,71 1,1 1,83 2,62 3,63 5,31
Space required (m²) 0,4 1,2 1,6 2,5 3,6 5,2 6,8
Max. screen decks 5 5 5 5 5 5 5
Connected load (kW) 0,25 1,5 2,2 4 4 5,5 5,5
Screen cleaning systems
Balls 5 Decks 5 Decks 5 Decks 5 Decks 5 Decks 5 Decks 5 Decks
Brushes 5 Decks 5 Decks 5 Decks 5 Decks 5 Decks 5 Decks 5 Decks
Air jet 2 Decks 2 Decks 2 Decks 2 Decks 2 Decks 2 Decks 2 Decks
Air jet + brushes 2 Decks 2 Decks 2 Decks 2 Decks 2 Decks 2 Decks 2 Decks
Ultrasound 5 Decks 5 Decks 5 Decks 5 Decks 5 Decks 5 Decks 5 Decks
Sieve attachment 2 Decks 2 Decks 2 Decks 1 Deck 1 Deck 1 Deck 1 Deck
Base plate (edge length) 630 930 1100 1340 1340 1740 1940
Height (mm) 850 1155 1480 1480 1500 1470 1580
1 deck weight (kg) 140 490 700 980 1050 1690 1900
Height (mm) 965 1280 1640 1640 1660 1590 1710
2 decks weight (kg) 155 535 770 1060 1140 1780 2000
Height (mm) 1080 1400 1800 1800 1820 1710 1840
3 decks weight(kg) 170 580 840 1140 1230 1870 2100
Height (mm) 1200 1525 1960 1960 1980 1830 1970
4 decks weight(kg) 185 625 910 1220 1320 1960 2200
Height (mm) 1310 1650 2120 2120 2140 1950 2100
5 decks weight(kg) 200 670 980 1300 1410 2050 2300

POWER SPRINGS

Powersprings MINOX Siebtechnik GmbH developed the Power Springs to reduce maintenance costs and significantly raise safety standards.

The dimensions of the gaskets can be negatively affected by the temperature of the materials, so that after a certain time the tensioning screws need to be manually tightened, especially on multi-deck machines. These springs automatically take care of the job.

The Power Springs consist of a case with set of springs fitted inside. The trapezoidal thread with a 4mm pitch, combined with a brass nut at the upper end guarantee outstanding mechanical durability and rapid fitting.

A colour code on the safety tensioning nut enables a simple sight test without turning the machine off. This makes it easy to check if the screw is providing sufficient tension.

A tumbler screening machine fully equipped with Power Springs and lifting device achieves the highest safety standards and the best material efficiency.

Original – Minox pneumatic lifting device for tumbler screening machines (trademark protected)

MTS MINOX Siebtechnik GmbH invests continually in developing its tumbler screening machines to improve their functionality and handling. This has always been one of the company’s primary objectives.

The MINOX machines in the MTS series are extremely robust and have long been equipped with genuine automatic screen centring.

The lateral flange this requires makes it easier to use a U-shaped gasket, which is simply passed over the screens. This means it is no longer necessary to go through the complicated process of gluing the flat gaskets used previously.

Nevertheless, until now a screen change could only be completed by manually removing the cover and the intermediate rings or by using a chain hoist or crane attached to the lifting rings on the screen casing. Despite the centred screen this makes changing the screen quite an arduous task, especially on large machines with 4-5 decks.

The latest invention from MINOX is a pneumatic lifting device enabling the intermediate rings and cover to be raised and lowered individually. Now the screen coverings can be exchanged quickly and easily or even just inspected.

Depending on the size of the machine and the number of screen decks, a 2 to 4 point lifting device is used. It is permanently attached to the tumbler screening machine and is ready to be connected to the air compressor, with pneumatic control for raising and lowering. As the lifting device is permanently attached it can be used at any time.

The pneumatic lifting device from MINOX can be retrofitted to almost all tumbler screening machines.

Effective screen cleaning guarantees uninterrupted operations

Particularly when screening fine particles the mesh can often become clogged by grains and dust or electrostatically charged. This can reduce performance and screening quality, sometimes considerably. In order to ensure uninterrupted operations the screen therefore needs to be cleaned in an appropriate way for the product. Due to their circular construction and three-way motion, tumbler screening machines are particularly suitable for rapid and easy fitting with the various screen cleaning systems.

Air jet cleaning

Luftstrahlreinigung A fan blows air or gas into the central cavity and then into the jet arms. The powerful air jet reaches speeds of up to 120m/s at the nozzle and cleans the screen mesh from below. A kind of fluid bed is created at the point where the jet stream rotates which causes the product to separate. At the same time the air is extracted, either at the fine grain outlet or via an extraction nozzle in the bottom pan. The air flows back across the screen and draws the fine material through the mesh, supplementing the mechanical screening effect. This technology is mostly used for products which are especially difficult to screen, or are sticky, fatty, greasy or electrostatically charged, e.g. spices, milk powders, metal powders etc.

Air jet and brush cleaning

Luftstrahl- und Bürstenreinigung For many difficult products such as plastic powders a brush is also required in addition to the air jet in order to clear the screen mesh of clogged particles.

Brush cleaning

Bürstenreinigung This method is particularly mild and the action of the conical roller brushes under the screen is especially suitable for round, crystalline and fragile materials. The brushes are driven by a reduction gear fitted to the shaft in the bottom pan.

Bouncing ball cleaning

Ballkopfreinigung Special long-lasting, food safe rubber balls are bounced against the bottom of the screen mesh from a perforated plate below and dislodge the clogged particles. It is simple to handle and service and can be used with most granular products.

Sieve attachment

Passiereinrichtung Steel or rubber spatulas rotate across the screen and gently press agglomerated material, e.g. instant coffee, through the screen.

Ultrasound cleaning

This is a new screening technology for ultra-fine products and is especially suitable for contamination-free screening. An ultrasound generator produces high-frequency vibrations which are transmitted to the screen mesh by a transducer. This cleans the screen mesh and can increase performance by a considerable multiple, depending on the product, e.g. control screening of pigments or toners. It can easily be retrofitted.

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