2-tb17 Backers Screener Specs, Dimensions & Technical Data - 2019 - 2026

The grizzlyscreen: made for the rough stuff

The rotating tubes of the new Grizzlyscreeen work continuously and at optimal throughput, even with cohesive material. Because of the rotation, working with smaller separating cuts than, e.g. with the vibrating or grilled grid, is possible. Another benefit: Agglomerates and softer materials are broken down by the rotation. Thanks to the heavy-duty rotating tube support, the feed material may contain larger chunks (up to 300 kg). The oversizes are separated by the Grizzlyscreeen.

Starscreen technology for organic material

Innovative, efficient screen solution for screening organic materials such as old wood, biomass, soil, fresh wood, wood chips, compost, top soil, renewable raw materials, bark, peat, root material and sugar beets.

Starscreen technology for mineral material

Innovative, efficient solutions for screening of mineral materials, such as ashes, railway ballast, mixed building waste, building rubble, soil-rock mixture, substitute fuels (ESB), fluff, river gravel, shred tyres, industrial waste, blast furnace residues, pebbles, clay soil, top soil, recycling material (pre-shred) and slag.

Screening and mixing with a single machine

Backers has developed a mixing unit for the stabilisation of soils with limestone, cement or other additives especially for road construction and underground engineering. The nice feature: You can use these machines either as screening and mixing unit or a 3-fractions starscreen. Changeover is quite simple: The mixing container is replaced by a second fine screen deck. Added flexibility!

Producing liquid soil on site according to the demand

The mobile starscreen units 3-mtac and 3-mtbc produce excellent screening results with high daily output, even with extreme materials such as loamy or clayey soils. This is one of the basic prerequisites for the exact fabrication of stabilised ground, hydraulically-bound base layer and liquid soil. When producing liquid soil by the batch with deposit into a concrete mixing unit a daily output of 300 to 400 m³ is achieved. Daily outputs from 1000 to 1500 m³ are possible for the production of stabilised soil and hydraulically-bound base layer.

The pipeline padder: efficiency in pipeline construction

The Pipeline Padder is a starscreen machine, running on crawlers, with material pick-up by an elevator chain. The machine can be employed on inclines up to 15 - 20 degree (approx. 30 - 40%). The angle of the starscreen is adjustable and allows screening in horizontal or inclined position. The fine grain belt is coupled with starscreen and collecting belt and discharges the screened material to the side. It is moved to the side and can deliver both to the left and the right. Material discharge takes place at a rapid speed from a height of 1.5 - 2 m. The screened material is thus delivered 1 - 5 m next to the machine into the pipe trench.

Screening

The Grizzlyscreeen separates coarse material directly when fed. The fine portion of 0 to 150/300 mm is already loosened up and transferred to the starscreen from the hopper. The starscreen screens, e.g. at 45 mm. The cleaned portion of 45 to 150/300 mm can then be transferred to the impact crusher 1010 with electric drive.

Crushing

Iron is separated by a suspension magnet before entering the impact crusher. Coarse crushing at 60 to 80 mm is possible since the crushed material is rotated in circular flow. Cohesive and very coarse material cannot enter the crusher.

Cleaning

The 0 to 45 mm material portion is forwarded to a cleaning unit. Crushed-stone sand is screened at 8 to 10 mm. At the same time, the fine portion in the material fraction is reduced. After the fine screen, an air separator suctions lightweight materials from the material fraction, and iron is removed at the end of the subsequent conveyor.

2-ha | Hooklift mobile

The super-compact unit. Very mobile and therefore ideal for frequently changing operation. Suitable also as pre-screener for crushers.