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Shaftless Mobile Trommel Screen for Waste: The WTS1847 Belarus Project

2026-09-29

Short answer: on mixed waste, the part that jams a trommel screen is usually not the screen — it is the central shaft. Flexible items such as film, rope and fibre wind around it until the drum stops moving material. The WTS1847 unit shipped to a waste-treatment project in Belarus in May 2026 removes that component altogether: a large-diameter drum with perforated screen plates and internal spiral flights, an open bore with no shaft through the barrel, fines discharged to the sides and coarse material out of the middle of the drum end.

The order came from a client who already knew what their material does to conventional equipment. What follows is the brief they sent, the 33 days it took to move from that first message to a loaded trailer, and the design decisions that came out of it.

Mobile trommel screen wrapped and secured on a trailer for shipment
Wrapped and secured on the trailer before the unit left the workshop for the Belarus project site.

What the client needed

The inquiry arrived through the website on 15 April 2026, and it was unusually specific — the client was not shopping for a catalogue model, they were describing a problem:

  • The material is mixed waste — heterogeneous, and deliberately described as prone to wrapping.
  • Capacity had to be high. The line is built for waste treatment, so a screen that needs frequent manual clearing is worse than no screen at all.
  • Sorting efficiency mattered more than price — the whole point of the project is separating the waste stream efficiently.
  • The machine had to be blue. A small detail, but a real one for a site with its own visual and safety conventions.

That brief is what shaped the answer: a shaftless drum, a heavy-duty screen configuration, and an aperture chosen for this material rather than for a generic job.

From website inquiry to shipment: 33 days

Nothing in the sequence was exotic — it was simply fast, and ordered. Each stage closed a specific open question instead of reopening the last one.

Date (2026) Stage What happened
15 April Initial contact Inquiry received through the website: waste-treatment and screening equipment, large processing capacity, anti-wrapping performance.
16 April First response Sales and technical team replied within 24 hours and opened a direct communication channel.
20 April Requirement analysis Client confirmed the material is waste, complex and prone to wrapping, set out expected production and sorting efficiency, and specified blue as the exterior colour.
25 April Solution fixed The WTS1847 shaftless trommel screen was recommended, with a heavy-duty screen configuration and the aperture best suited to this waste stream.
18 May Shipment After several rounds of final testing, the unit was loaded and dispatched to the project site in Belarus.
Blue trommel screen drum with side discharge conveyors in the workshop
In the workshop before testing: the drum assembly in the client-requested blue, with both side discharge conveyors raised.

Why waste wraps — and what changes when the shaft is removed

The problem is the shaft, not the screen

A conventional trommel screen runs its drum on a central shaft. That shaft is a smooth, continuous, slowly rotating rod sitting in the middle of everything you feed in — which is exactly the geometry that long, flexible items are looking for. Film, rope, wire and textile strips wrap around it within minutes, the wrapped bundle grows, and eventually it interferes with the flow of material inside the drum. The screen plates themselves are usually still fine; the machine simply has to be stopped and cleared by hand.

A shaftless drum has nothing to wind around

The WTS1847 uses a shaftless drum structure. There is no central shaft inside the barrel at all, so the material travels through an open bore. Long items have no rotating rod to catch on, and oversized material passes through instead of being held back and tangled. The practical result is fewer unplanned stops, less manual clearing, and lower maintenance cost over a working season — which is the reason this configuration was recommended for a wrapping-prone waste stream rather than a standard drum.

Interior of a shaftless trommel drum showing perforated screen plates and spiral flights
Inside the drum: perforated screen plates and spiral flights move the material along, with no central shaft running through the barrel.

Where each fraction leaves the machine

Discharge is arranged so that the two streams never fight each other. Fines drop through the screen plates and are carried away by the side conveyors, while coarse material continues along the drum and exits from the middle of the drum end. Because the coarse fraction leaves from the centre rather than being pushed out against the bottom of the machine, material does not pile up underneath the unit — the working area stays clear and the line keeps running.

Twin-axle mobile chassis and folding conveyor frame of the mobile trommel screen
Mobile chassis detail: twin-axle undercarriage, support legs and the folding conveyor frame.

Built for a working waste yard

A waste site is not a clean, level gravel pad, and the Belarus project is no exception. The unit sits on a mobile chassis so it can be brought into position on uneven ground and moved again when the tipping area changes. The exterior is finished with a corrosion-resistant coating, and the parts that take the hardest wear are reinforced for continuous, high-intensity operation rather than occasional use.

Project facts

Item Detail
Application Waste treatment and screening
Material Mixed waste — complex and prone to wrapping
Client requirements Large processing capacity, efficient sorting, anti-wrapping performance, blue exterior
Recommended model WTS1847 shaftless mobile trommel screen
Screen configuration Heavy-duty screen with the aperture best suited to this material
Discharge arrangement Fines via the side conveyors; coarse material from the middle of the drum end
Exterior colour Blue (client-specified)
Shipped 18 May 2026, from Zhengzhou
Support included Custom production, delivery, installation guidance, commissioning and after-sales service

What to prepare before you order a waste trommel

The Belarus order moved quickly because the client had already answered most of the questions a supplier would ask. If you are planning a similar project, these are the ones worth having ready:

  1. What the material actually is — and photos or a short video of the pile, which say more about wrapping risk than any description.
  2. Which fraction you are chasing. “Screening the waste” is not a specification. Do you need the fines clean, the oversize clean, or both?
  3. Target throughput per hour, and how many hours a day the machine has to hold it.
  4. Site conditions — mobile or fixed installation, ground conditions, and the power available on site.
  5. Anything flexible in the stream — film, rope, textile, wire. This single answer decides whether a shafted drum is even worth quoting.
  6. Site conventions such as colour, noise limits or dust control, which are cheaper to agree before production than after.

Frequently asked questions

What does “shaftless” mean in a trommel screen?

It means the drum barrel has no central shaft running through it. The drum is driven from the outside, so the inside of the barrel is an open bore with only the screen plates and the internal flights.

Why do trommel screens clog on mixed waste?

Not because the screen openings are wrong, but because flexible items wrap around the central shaft of a conventional drum. Remove the shaft and the wrapping point disappears; oversized material simply travels through.

How long did this Belarus project take?

Thirty-three days from the first website inquiry on 15 April 2026 to dispatch on 18 May 2026 — including requirement analysis, the proposal, and several rounds of final testing before loading.

Can the machine be supplied in a specific colour?

Yes. This project’s client asked for a blue exterior, and the unit was finished in blue before shipment.

How are the fines and the coarse material kept apart?

Fines fall through the screen plates and are taken away by the side conveyors; coarse material continues to the end of the drum and exits from the middle. The two streams are discharged at different points, so neither contaminates the other.

Can it be moved around the site?

Yes — the unit is built on a mobile chassis and is designed to cope with uneven ground, with a corrosion-resistant finish and reinforced components for continuous operation.

What support comes after the shipment?

Custom production and delivery are followed by installation guidance, commissioning support and after-sales service, so the unit is brought into production on site rather than simply delivered.

Planning a screening project like this one?

Tell us three things — what the material is, what output you need per hour, and what your site looks like — and our engineers will come back with a recommended model, a screen configuration and a quotation. If your material wraps, say so in the first message: it changes the recommendation.

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