sizers

MULTI-DECK SIZER

The complete range of Sizers are offered including specialised accessories.Also included in the range are Flip Flop Screening Machines as well as the new Sizer 2000 especially suitable for very fine screening applications.Screening machines are offered on a made-to-measure basis offering intelligent solutions.The product range offers a very wide selection for fine screening - from approximately 100 mic. and for coarse separations up to 5 mm.
3 to 6 progressively inclined screen decks with progressively finer mesh apertures are arranged in a functional and compact manner in the vibrating screen frame. Because of the inclination in the meshes the screening effect and thereby the separation size are appreciably smaller than the apertures in the mesh panels. This drastically reduces the risk of pegging and increases the capacity considerably because the coarse-mesh system induces a dispersed material flow without the build-up of a bed of material.
Residence time in the machine is short. The processed material falls vertically and rapidly through the Sizer whereby coarse particles are removed early in the screening process from the required product stream. Wear and tear on the finer lower decks is greatly reduced.

Typical application includes crusher relief operations in mining & quarrying applications. Screening out trash and tramp material such as high capacity screening of moist coal in power plants-without material blockage. Increasing use in road building and civil construction projects for screening of basalt rock, various types of stones and gravel.

Automatic Sieve Cleaning

A new method, by which sieve meshes are self-cleaning as a result of controlled tension reduction by means of tensioning cylinders

Mesh Tension Monitoring

Sizers can be fitted with sensors for the monitoring of the meshes.A broaken mesh or an inadequately tensioned mesh will produce a signal.This makes the regular visual inspections unnecessary.

Integrated feeding and feed distribution system

Pre-segregation (material stratification) inside the machine to achieve an increase in screen capacity.

Optional arrangement of Exciters

In order to match the installation requirements it is possible to mount the Vibrator Motors either above or below the Sizer frame. The larger sizes use the Direct Force Exciters with Cardan Shaft drive from separate motor.

Facts & Data

1. Separation range 0.1 to 50 mm
2. Capacities 0.1 to 500 tph for all types of materials and slurries
3. 2 to 6 fractions per machine
4. Blockage-free screening
5. Compact construction
6. Low weight
7. Dust-proof and quiet operation
8. Modular construction system
9. Adjustable for inclination, amplitude and frequency.

The Sizer 2000 in single, double, or three-deck design is a screening machine, which is distinguished from others in that the screen meshes are vibrated directly by means of rapping bars. The screen mats are tensioned in the direction of material flow over the rapping units. Each rapping unit consist of a shaft with two rapping bars. The end of each shaft are fitted with vibrator motors, 2 to each shaft, which induce an oscillating motion in the rapping bars.
The impact of the bars on the mesh panels keeps them free of "pegging" and prevents the build-up of fine material.
The Sizer 2000 is a static screen and transmits almost no dynamic load to surrounding structures.
The Sizer 2000 is offered with frequency inverter drive to optimize the ocillating frequency according to the screening product.

Facts & Data

1. Extremely low power requirement due to static frame
2. Adjustable stroke from deck to deck
3. Virtually no dynamic load on support structure
4. Dust-tight enclosure
5. Screening at cut points between 0.1 - 10.0 mm

The Bar sizer is specially designed for coarse separations and it operates accordingly at high capacity, free from blockage. It works without moving parts and without consuming energy.
The range of separation is between 25 mm to 400 mm. Individual pieces may be 1 m in size and up to 3 t in weight. The quality of separation is astonishingly good in relation to the requirements of coarse screening.
The simple and robust design ensures failure and maintenance free operation, even with difficult sticky materials contaminated with impurities.
It is a simple design with creative technology. The bars diverge and are fixed at one end only. The gap opens up towards the end of the bars in the same direction as the flow of material.
The material - induced bar vibration prevents blockages. The bars are made of a special steel and may be reversed in order to increase operational life.

Facts & Data

1. No power supply required
2. No noise from drive or moving parts
3. No danger of blockage
4. Dust-tight enclosure
5. Capacities up to 1500 tph or even more
6. Size of separation between 25 mm to 400 mm
7. Can handle large lumps up to 3 t individual weight
8. Maintenance-free operation
9. Suitable for both mobile and static plants.

The Vibro-Barsizer really works because of its effective blockage-free design principle. It separates difficult-to-screen and heavily polluted materials reliably, including bulky and irregularly shaped particles. Very effective with greasy, sticky and wet materials. Textiles, fibres and plastics in the product stream pose no problems.
The linear vibration of the Vibro-Barsizer and the bars fixed at only one end help ensure a fully trouble-free separation. The bar decks are mostly arranged in multiple cascade- like steps.
The material is turned around and opened up as it falls from one step to another. Pegging and blockages are positively avoided.
Driven by two maintenance-free and quiet vibrator motors or Direct Force Exciters the Vibro-Barsizer can additionally be equipped with mesh panels to meet special requirements.

Facts & Data

1. Capacity over 1000 m3/h
2. Separations between 10 mm and 150
3. Handling solids and slurries
4. Dust-tight enclosure
5. Maintenance-free operation for long-term continuous duty
6. No blockage and pegging
7. Favourable energy/capacity ratio