Shaftless Screw Conveyor-Henan Keming Machinery Equipment Co., Ltd.

Double-Shaftless-Screw-Conveyor

Advantages

Superior Anti-Wrapping & Anti-Blockage Performance

Without central shaft interference, it excels at conveying belt-like, high-moisture, and easily tangled materials. It fundamentally solves the jamming and blockage accidents caused by hair, fibers, or sludge wrapping in traditional equipment.

High Torque & Low Energy Consumption

Because the discharge outlet is not prone to blockage, the equipment operates smoothly at lower speeds, reducing energy consumption while providing high torque of up to 4000N/m. For the same diameter, its conveying capacity is 1.5 times that of traditional shafted conveyors.

Fully Enclosed Eco-Friendly Design

The U-shaped trough combined with a fully sealed cover effectively prevents odor emission, dust flying, and material leakage, ensuring environmental hygiene and protecting conveyed materials from external contamination.

Long-Distance & Flexible Layout

A single unit can convey materials up to 60 meters, and multiple units can be connected in series for ultra-long-distance transport. Its compact structure supports horizontal or inclined (generally ≤30°) layouts, saving valuable space.

Easy Maintenance & Long Lifespan

Wear-resistant liners (such as nylon or HDPE) are laid at the bottom of the trough to reduce friction and wear. The absence of intermediate hanger bearings significantly reduces wearing parts, resulting in minimal daily maintenance requirements.

Applicable Industries

Wastewater Treatment Industry

Dewatered sludge, screenings, sediment scum transportation.

Solid Waste & Kitchen Waste Treatment

Kitchen waste, sorted municipal waste, fermentation residue.

Paper-making Industry

Wood pulp, waste paper pulp, fiber waste.

Chemical Industry

Viscous paste materials, wet powder, chemical filter cake.

Food & Agriculture Industry

Fruit pomace, distiller’s grains, livestock manure, wet agricultural by-products.

Applicable Materials

Fibrous & Winding-prone Materials

Cloth strips, fiber, paper pulp, hair and filamentary debris.

High-viscosity Wet & Paste Materials

Various sludge, filter cake, kitchen slurry, wet fermentation residue.

Bulk Materials Mixed with Impurities

Loose materials mixed with plastics, scraps and small fragments.

Frequently Asked Questions

Q1: Why does a shaftless screw conveyor not need intermediate hanger bearings?

Traditional shafted screws require hanger bearings to support the long shaft, which is exactly where sticky materials are most likely to wrap and jam. The shaftless screw uses a flexible integral steel blade, driven directly from the drive end and sliding on bottom wear-resistant liners. This fundamentally eliminates the need for intermediate support and completely removes the risk of wrapping.

Q2: Can this equipment convey materials vertically?

It is not recommended. Shaftless screw conveyors are mainly suitable for horizontal or small-angle inclined conveying (typically ≤30°). If the angle is too steep or vertical, materials will fall back severely due to gravity, rendering the equipment inoperable. For vertical lifting, a bucket elevator is recommended instead.

Q3: What should be done if the screw blades wear out too quickly?

In shaftless screws, the stress is concentrated on the blades. Blades that are too thin or have a pitch that is too small can cause crushing damage. It is recommended to use thickened wear-resistant blades and install high-strength wear-resistant liners (such as UHMWPE boards) at the bottom of the U-shaped trough. This not only protects the blades but also reduces operating noise.

Horizontal Screw Conveyor

Advantages

Applicable Industries

Applicable Materials

Frequently Asked Questions

Request a Custom Solution

Related Products

Tubular Screw Feeder

Integrated Silo Screw Conveyor

Cooling Screw Conveyor

High Temperature Screw Conveyor