GRAVITATIONAL TABLES – GRAINTECH

Gravitational tables are machines used when it is necessary to sort products of the same size by weight. These machines are most commonly used in seed production lines or for cleaning small seeds.

Gravity tables offer greater precision than screen-based cleaners and suction systems. Gravity tables make it possible to achieve a final product purity of 99.91% by weight, free from impurities. The core working element of the equipment is a screen, beneath which a large volume of air is blown, lifting the incoming product. On the screen, the product is separated according to its mass. The equipment is fitted with vibration motors, the intensity of which can be adjusted using a frequency converter; the air volume is adjustable, and the table’s inclination can be adjusted in two perpendicular planes. In addition, it is possible to adjust the incoming product flow and other settings.

Advantages

A dynamically balanced vibration drive reduces dynamic loads on the supporting structure.
Economic use
Easy and precise adjustment
Work in progress
Very low equipment vibration
No damage to cleaning products
A vibratory feeder is not required

Application

In seed production
In different mills
For seed cleaning
Grain and rice cleaning lines
For spelt, buckwheat, sunflower seed, and millet dehulling lines
In food production
For precise sorting on various industrial lines

Additional equipment

Maceration equipment
Aspiration systems
Reverse conveyor
Different types of management

MODELS	JGT 12	JGT 23
PERFORMANCE
Cereals (wheat, oats)	0.4 – 0.9 t/h	1.5 – 3.5 tonnes per hour
Oilseeds (rapeseed, flax, etc.)	0.2 – 0.5 tonnes/hour	0.8 – 1.6 tonnes/hour
Small seeds (e.g. grasses)	0.1 – 0.3 tonnes per hour	0.5 – 1 tonne per hour
DIMENSIONS
Length	1440 mm	2625 mm
Platitudes	1125 mm	1620 mm
Height	1545 mm	1685 mm
CITY
Tablecloth	0.6 m²	2.3m²
Vibrator power	0.3 kW	0.37 kW
Suction power	4 kW	11 kW
Answer	540	910

JCR models clean and split incoming product using screens and air, which is blown from the bottom of the screens.

The device is operated by 2 vibratory motors. In its standard configuration, it is equipped with 2 sieve levels, each of which consists of 3 sieves. The aspiration power is precisely adjustable.
A wide range of screens tailored to the product being screened, combined with precise suction control, ensures perfect sorting by size and, to some extent, according to the specific composition of the product mix. The end product is typically purified to a purity of 99.51% by weight, free from impurities. The screen box tilt is adjustable (the product flow rate is regulated). Thanks to a specially designed lifting mechanism, the screens are easy to replace. Suction is provided by a radial fan. The incoming product should be pre-cleaned to achieve the best possible results. To prepare high-quality seed material, it is recommended to use this equipment before the gravity table.

Advantages

Careful with the recyclables
Simple equipment cleaning
Compact size
The energy consumption of the Earth
Quick and easy net replacement

Applicable

Sorting and cleaning equipment for a low-power seed preparation line
Sorting machine for the shelling line
Flour purifier in flour production
Sorting equipment for flour and flake production lines
Sorting machine and calibration machine included within the seed production line
Cleaning and sorting machine for various technical materials, such as different plastics, rubbers, etc.

Technical information

MODELS	JCR 05	JCR 08
PERFORMANCE
Cereals (wheat, oats)	0.6 tonnes per hour	2 tonnes per hour
Grass seed	0.3 t/h	1 tonne per hour
Seeds	0.15 tonnes per hour	0.5 tonnes per hour
DIMENSIONS
Length	2030 mm	2670 mm
Platitudes	950 mm	1255 mm
Height	1800 mm	1955 mm
CITY
Square dance	1 m²	2.1m²
Vibrator power	0.5 kW	1.1 kW
Suction power	4 kW	7.5 kW
Answer	400	800

JGC concentrators are designed to split an incoming product into two fractions – light and heavy. These machines are used in seed preparation lines, mills, and dehulling lines.

The sorted material is fed onto a screen, which vibrates, and air is blown from beneath the screen. As a result, the lighter fraction rises above the heavier fraction. The lighter material flows to one side, and the heavier material to the other. Depending on the product being sorted, it is possible to adjust the screen's tilt angle, vibration amplitude, and air velocity. This equipment is also capable of sorting products with slightly different bulk densities.

Advantages

High efficiency
Compact size
Minimum service costs
Simple regulation
The energy consumption of the Earth
Vacuum design – no dust formation

Applicable

In the peeling lines – separation of the peel and light impurities
Seed preparation lines – separation of light grains (over-dried or damaged)
At the mill – separation of grain into light and heavy fractions
For other purposes

Technical information

MODELS	JGC 03	JGC 05	JGC 2008	JGC 12
PERFORMANCE
Performance	0.5 – 1 tonne/hour	1 – 2 tonnes/hour	1.5 – 4 tonnes/hour	2 – 6 tonnes/hour
DIMENSIONS
Length	1170 mm	1640 mm	1835 mm	1850 mm
Platitudes	780 mm	1020 mm	1,320 mm	1660 mm
Height	1335 mm	1745 mm	1750 mm	2.33 m
CITY
Siedlce Square	0.21 m²	0.5 m²	1 m²	1.4 m²
Air volume	1512 m³h	3600 metres³h	7200 m³h	10800 m³h
Answer	205	380	450	640

JGD de-stoners are designed for the separation of heavy impurities (stones, sand) from the main product

The material to be sorted is fed onto a vibrating screen, with air blown from beneath it. As a result, the lighter fraction rises above the heavier fraction. The lighter material flows to one side, the heavier to the other. Depending on the product being sorted, it is possible to adjust the angle of the screen, the amplitude of the vibration and the air velocity. This machine is also capable of sorting products with slightly different bulk densities. The proportion of fractions can be continuously adjusted. As standard, the machine is equipped with an aspiration system that extracts the lightest impurities from the screen. The final product is typically obtained with a purity of 99.991% free from impurities. The machine can be fitted with aspiration recirculation – up to 90% of the air volume is reused, which allows for the installation of cyclones and filters.

Advantages

High efficiency
Compact size
Minimum service costs
Simple regulation
The energy consumption of the Earth
Vacuum design – no dust formation

Applicable

On peeling lines – sorting of peeled and unpeeled products
In brewing lines – stone separation from barley, hops.
In the mill – stone separation, dividing the grain into lighter and heavier fractions
For other purposes

Technical information

MODELS	JGD 03	JGD 05	JGD 08	JGD 12
PERFORMANCE
Performance	1 – 2 tonnes/hour	2 – 6 tonnes/hour	6 – 12 tonnes/hour	8 – 16 tonnes/hour
DIMENSIONS
Length	1170 mm	1640 mm	1835 mm	1850 mm
Platitudes	780 mm	1020 mm	1,320 mm	1660 mm
Height	1335 mm	1745 mm	1750 mm	2.33 m
CITY
Siedlce Square	0.21 m²	0.5 m²	1 m²	1.5 m²
Air volume	1512 m³h	3600 metres³h	7200 m³h	10800 m³h
Answer	205	380	450	640