Products — dust extraction

Dust extraction and collection: flue ducts, hoppers, enclosures

Dust hoppers, flue ducts and air ducts, enclosures and hoods for mining, metallurgy and cement plants. Heavy-wall design for abrasive dust — where thin galvanised sheet does not survive — and thin air ducts from 1 mm. Made to the customer's drawings and sketches or to a sample.

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A batch of flanged duct sections after painting in the KZTM shop

1–20 mm

Plate thickness for flue ducts and air ducts

DN 2000

Duct and shell diameter

25 mm

Shell rolling on 4-roll plate rolls

40 mm

Laser sheet cutting

What we make

A complete unit or individual elements — to the customer's drawings and sketches, from a sample or to our own drawings. Flanged joints, drilled to your bolt pattern.

Thin-sheet air ducts

Round and rectangular, from 1 mm sheet, not only carbon steel. Flanged sections, elbows, transitions.

Dust hoppers and collectors

Pyramidal and conical, with a spigot for a rotary valve. Shells rolled up to 25 mm.

Flue ducts and air ducts

Round and rectangular, DN 100–2000, plate up to 20 mm. Flanged sections, elbows, transitions, tees.

Conveyor enclosures and guards

Protective guards for transfer points and drives, dust enclosures over the belt.

Extraction hoods and local exhausts

Over crushers, screens and loading points. Sized for the design capture velocity.

Transfer chutes and funnels

From 6–12 mm plate, with wear-resistant liners on request.

Dampers, gates, expansion joints

Control and shut-off elements for ducts, fabric and metal expansion joints.

Support frames and platforms

Steel structures for hoppers and flue ducts, access platforms, stairs.

Flanged extraction boxes after painting — Flanged boxes · 3 mm steel · primer-enamel

Welded flanged duct transition — Duct transition · welded, flanged

Heavy-wall flanged shell — Flanged shell · rolling up to 25 mm

Pyramid dust-extraction hood made of sheet steel at the KZTM shop — Extraction hood · sheet steel, assembled on a 3D table

Manufacturing parameters

Limits set by our machine fleet. If your task falls outside them, we say so right away and suggest a solution.

Plate thickness	1–20 mm, not only carbon steel; shells up to 25 mm
Shell and duct diameter	up to 2000 mm at a section length of 2100 mm
Sheet cutting	laser up to 40 mm · plasma up to 16 mm
Bending of boxes and transitions	125 t press brake, bend length up to 3200 mm
Flanges	laser cut, drilling up to Ø50 mm, to the customer's bolt pattern
Coating	primer-enamel, anti-corrosion paint (no powder coating)
Documents	product passport, material certificates, QC report

How to order

The quote is free, the commercial offer — within 24 hours on business days.

Send a drawing or parameters

No drawing? Send the parameters: air flow, dust load, extraction points. An engineer will develop a drawing.

Quote in 24 hours

A commercial offer with price and lead time.

Manufacturing and shipment

QC acceptance, photos before shipment, delivery across Kazakhstan. Installation — through a partner or by the customer.

FAQ

Frequently asked questions

Briefly about quotes, drawing formats and material. Other questions — in the FAQ block on the home page.

How do I get a cost estimate and how much does it cost?

The estimate is free. Send your drawing and a description of the task through the form on the site, via WhatsApp or to info@kztm.kz — an engineer will prepare a commercial offer with exact pricing and lead times from 24 hours on business days.

What formats do you accept drawings in?

2D drawings: DWG, DXF, PDF, as well as native CAD formats — IDW (Autodesk Inventor), CDW/FRW/SPW (KOMPAS-3D), SLDDRW (SolidWorks), DRW (CATIA). 3D models: STEP (.step, .stp), IGES (.iges, .igs), Parasolid (.x_t, .x_b), SAT (ACIS), as well as native ones — IPT/IAM (Inventor), SLDPRT/SLDASM (SolidWorks), CATPart/CATProduct (CATIA), m3d/a3d (KOMPAS-3D), PRT (NX, Creo). If you only have a paper sketch or a sample part, our design engineers will prepare the working drawing themselves.

How is your dust extraction different from ventilation ductwork?

Ventilation ducts are made from 0.5–1.5 mm galvanised sheet. Dust extraction at a concentrator or a cement plant handles abrasive dust that wears through such metal in a season. We build flue ducts from plate up to 20 mm, not only carbon steel, with liners on elbows. They last years, not months. We also make thin air ducts from 1 mm.

Send your drawing — quote from 24 hours

Leave your contacts and describe the task. Our engineer will contact you to clarify details and prepare a commercial offer as soon as possible.

Quote from 24 hours Exact cost and timing, not "approximate"

Technical consultation We'll advise how to optimize your drawing for production

No obligations Quote is free, contract only if everything suits you