Industrial sourcing · China to Europe

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Buyer guide · Material handling

Screw conveyor from China

A screw conveyor is quoted by tube diameter and length, but what it actually moves depends on how full the trough runs, the angle, the pitch and how your powder behaves, and a screw sized on the brochure figure can pack, bridge or grind your product.

Ask about this machine ↗Where the numbers come from

Written and listings checked 1 October 2026. Every figure on this page names its source.

What you are actually comparing.

Two quotes, one machine name

What hides inside the price

Shafted, shaftless or flexible

Shafted screws in a tube or U-trough suit free-flowing powder and grain. Shaftless spirals handle sticky sludge and fibrous material that would wrap a shaft. Flexible spirals in a hose suit short, light transfers and small bags.

Tube or trough diameter and pitch

Pipe diameters come in fixed sizes, so quotes often match. Pitch and flight thickness differ. A shorter pitch near the inlet stops the screw flooding; ask whether it is fitted.

Fill level and incline

Horizontal screws run part full by design, lower for abrasive material. Capacity falls as the angle rises. Ask for the rated capacity at your angle, not flat.

Hanger bearings and ends

Long screws need intermediate hanger bearings, which sit in the product stream and wear. Ask the bearing type, the spacing and the end seals.

Contact material and cleanout

Carbon steel for aggregates and cement, stainless for food and chemicals. For food, ask how the screw comes out for cleaning.

Before you ask for a price.

Send these with the enquiry. Without them, any number a factory gives you is a guess dressed as a quotation.

The material by name, with bulk density, particle size, moisture and whether it is abrasive, sticky or fragile.
Length, angle and the height difference between inlet and outlet.
Tonnes or cubic metres per hour, and whether the screw also doses.
What feeds it and what it discharges into, with flange drawings.
Food or feed contact, hot material, or a dust zone.

Turn the claim into a demonstration.

Require this	A pass looks like
Run your material at the quoted speed and angle and weigh the output over a timed period.	Output reaches the quoted rate, and the motor current stays below its rating.
Stop the screw full, then restart.	It restarts under load without tripping, and the material does not pack solid at the inlet.
Open the inspection cover with the drive running, then check the stop.	Opening the cover stops the screw, or the cover needs a tool, and restart needs a reset.

The documents that must arrive with it.

EU Declaration of Conformity naming 2006/42/EC, or Regulation (EU) 2023/1230 from 20 January 2027, with 2014/35/EU and 2014/30/EU.
Drawing with diameter, pitch, flight thickness, hanger positions and the capacity calculation at your angle.
For food, a declaration for contact parts under Regulation (EC) 1935/2004 and the steel grade certificate.

The one people forget. The declaration of incorporation. A screw sold to feed a mixer, a filler or a silo usually arrives as a partly completed machine, and the combination then needs its own conformity assessment.

When this is the wrong machine.

Buy something else if

Named, not hedged

The product is fragile, such as coated granules or flakes.

A belt conveyor or a vibratory feeder, which move product without shearing it.

You need to lift material high, close to vertical, in quantity.

A bucket elevator, which keeps its capacity where a steep screw loses it.

Where the numbers come from.

We name the kind of source, how many and when, and never the factory. Listed prices are asking prices, not landed cost. Where we do not hold a fact we say so: that is a GAP, not an estimate.

Listings · 11Eleven screw conveyor listings on one marketplace, checked October 2026, asked from US$500 to US$50,000 a piece or set, across shafted, shaftless and flexible designs. Eight of the eleven topped out at or below US$6,000. Asking prices, not landed cost.
Listings · 2Two mining and grain screw conveyor systems, checked October 2026, asked US$8,600 to US$21,000 a set.
Listings · 1One spiral screw conveyor listing, checked October 2026, offered 168, 219, 273 and 323 mm tubes at one asking price of US$1,400.
GAPGAP - no supplier quotations logged for this machine yet. Three to five quotations for one configuration would give a real price spread.

Related machines.

Bucket elevator. Choose it when the lift is high and near vertical and capacity must hold.
Vibratory feeder. Choose it to dose fragile or free-flowing material gently at a controlled rate.

Every machine we source in this area is on the Material handling page. How a project runs, stage by stage, is on how it works, and what it costs is on pricing.

Straight answers

Questions buyers ask about this machine.

Chinese vs European screw conveyor: what differs?+

Flight thickness, pitch design, bearings, seals and the steel grade. Pipe size is usually the same. Compare those items line by line.

What goes on a screw conveyor inspection checklist?+

Flight welds, straightness, hanger bearings, the drive nameplate, the inspection cover interlock, and a timed run on your material.

Which standard applies to a screw conveyor?+

EN 618 covers mechanical handling equipment for bulk material other than fixed belt conveyors. Ask whether the supplier designed to it.

Who is the EU importer?+

The company placing the screw on the EU market, often the buyer. It checks the declaration and adds its name and address.

Contact

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