Sectional Equal-thickness Screw Flighting

What is a Sectional Equal-thickness Screw Flighting?

Segmented equal-thickness screw flights are precision-formed from steel plate segments into spirals, maintaining uniform thickness for excellent wear resistance, durability, and stable performance. Compared with continuous cold-rolled flights, they are ideal for large-diameter, heavy-duty, abrasive, or non-standard applications.

Segmental Flight Design

Modular construction allows for easy assembly, replacement, and repair, minimizing downtime and reducing maintenance costs.

Reinforced Flight Structure

Reinforced edges and structural supports improve structural strength, helping the flight resist bending and deformation under heavy-load conveying conditions.

Optimized Flight Geometry

Precisely engineered spiral geometry helps maintain steady material movement, improving conveying efficiency and reducing blockages.

Precision Forming Process

Advanced precision forming processes ensure consistent thickness, accurate pitch, and smooth edges for efficient material flow and reliable performance.

Strong Welding Integrity

High-strength welding processes ensure secure connections between segments or reinforcements, maintaining structural stability during continuous operation.

Long-Term Operational Reliability

Built to withstand abrasion, vibration, and demanding conveying environments, ensuring dependable performance and extended service life.

Auger Shafts Designed for Your Equipments

At Sanwei, all auger shafts are fully custom-designed to suit your equipment and operational needs.

Agricultural Equipment

Augers are widely used in combine harvesters and grain processing equipment to ensure efficient conveying of crops and cereals during harvesting and post-harvest handling.

Combine Harvester

Spiral components used in header, feeder and unloading systems to ensure stable crop and grain conveying during harvesting operations.

Rice Harvester

Spiral flighting applied in rice handling equipment for smooth material transfer throughout harvesting and post-harvest processes.

Grain Handling Equipment

Auger components support continuous feeding, conveying, and material transfer in grain dryers, conveyors, silos, and packaging systems.

Grain Dryers

Auger components designed for continuous grain feeding and discharge under elevated temperature and long operating cycles.

Grain Conveyors

Spiral solutions for horizontal and inclined grain conveying, providing consistent flow and reliable operation.

Bin & Silo Sweep Systems

Heavy-duty spiral components used for residue dleaning and material recovery in silos and storage bins.

Weighing & Packing Systems

Precision spiral parts are applied in controlled feeding and dosing systems for accurate grain packaging.

Industrial & Engineering Equipment

Screw conveyors are used for bulk material handling, drilling support, and discharge processes across various industrial applications.

Drilling & Excavation Machinery

Spiral components used for material lifting, discharge and debris removal in drilling and excavation applications.

Bulk Material Handling Systems

Custom spiral solutions for conveying industrial bulk materials with varying densities and flow characteristics.

Food Processing Equipment

Augers enable uniform conveying and controlled feeding in food processing lines and dosing systems.

Screw Conveyors

Spiral components designed for continuous and uniform material conveying in food processing lines.

Screw Feeders

Customized spiral flighting for controlled feeding applications, supporting stable and repeatable dosing processes.

Environmental & Wastewater Equipment

Screw conveyors are used for transporting, feeding, and dewatering sludge and solid materials in environmental treatment systems.

Sludge Screw Conveyors

Reinforced spiral components suitable for transporting high-moisture and high-viscosity sludge materials.

Screw Press Dewaters

Spiral elements designed for compression and dewatering processes under heavy load conditions.

Sludge Thickening Systems

Spiral components applied to sludge concentration processes, supporting continuous and stable operation.

Feeding Systems

Customized spiral solutions for controlled feeding of sludge and solid waste materials in treatment systems.

Technical Specifications

Within the ranges listed, products can be made to customer specifications.

Pitch Parameter Table

Pitch(mm)	Minimum Inner Diameter(mm)	Maximum Outer Diameter(mm)	Ratio	Minimum Outer Diameter(mm)	Thickness Range
60-100	25	480	1	Minimum outer diameter = required pitch*ratio	3-16
100-150	30	480	0.8		3-18
150-200	50	520	0.75		3-20
200-250	60	630	0.7		3-25
250-300	65	670			3-25
300-350	90	900			3-30
350-400	90	950			3-30
400-450	95	950			3-30
450-500	135	1150			3-35
500-550	150	1300			3-40
550-650	150	1350			3-40
650-750	200	1400			3-45
750-850	200	1450			3-50
850-950	250	1450			3-55
950-1050	300	1500			3-55
1050-1200	350	1600	0.8		3-55
1200-1250	400	1800			3-55
1250-1400	450	2000			3-55
1400-3000	480	3000	0.65		3-60

Custom Conveyor Components Solutions to Meet Your Needs

Every conveyor system has unique requirements. We manufacture customized segmental equal-thickness screw flights tailored precisely to your specifications. 30+ years of expertise ensure every design delivers maximum performance and durability.

Materials

Diameter

Pitch

Thickness

Segment Length / Reinforcement Details

Surface Treatment

Materials

· Q235 / Q345 Carbon Steel: Standard or high-strength flights
· Wear-Resistant Steel (NM400): For abrasive materials and heavy-duty applications
· Stainless Steel (304/316/321/420): Corrosion resistance for chemical, food, or wet environments

Diameter

Minimum inner diameter 25 mm, maximum outer diameter 3000 mm; common sizes available, custom sizes supported

Pitch

60 mm – 3,000 mm (Standard pitch, short pitch, or variable pitch available)

Thickness

3 mm – 60 mm (Common thickness: 3, 4, 5, 6, 8, 10, 12 mm, or custom thickness available)

Segment Length / Reinforcement Details

According to your drawing or specification

Surface Treatment

· Anti-corrosion coatings: For protection in harsh, corrosive environments
· Wear-resistant hard-facing: For extreme abrasion and heavy-duty demands
· Custom for your needs

Send us your drawings or specifications, and we will manufacture precisely to your requirements.

Where Our Sectional Equal-thickness Screw Flights Work

Agricultural Machinery

Grain handling augers and combine harvester systems

Bulk Material Conveyors

Feed, fertilizer, sand, coal

Wastewater Treatment

Sludge conveyors

Industrial Conveyors

Cement, chemical, and mining applications

Why Partner Sanwei as Your Screw Conveyor Components Company?

From application review and design support to production, inspection, packaging, and delivery, Sanwei helps simplify sourcing and reduce coordination effort.

Dimensions, materials, and structures can be tailored to OEM and non-standard needs, ensuring screw conveyor components match real operating conditions.

Dedicated CNC machining, forming equipment, welding lines, and straightness inspection systems support efficient production of screw flights in all specifications.

ISO 9001–certified processes and full-stage inspections ensure consistent performance, durability, and long service life of every component.

Sample lead times are short, with in-stock samples ready in as fast as 3 days and new samples in about one week. Standard screw flights are typically delivered within 2–4 weeks.

A 12-month warranty, 24/7 service support, and professional engineering consultation are provided to support long-term and reliable operation.

Need More Help? Contact Us

Frequently Asked Questions

What is the maximum diameter?

Up to 3000 mm outer diameter.

What is the minimum inner diameter?

The minimum inner diameter is 25 mm.

What thicknesses are available?

Thickness ranges from 3 mm to 60 mm, depending on the material.

Can you supply complete auger assemblies?

Yes. Segmented flights can be supplied separately or welded onto shafts for complete auger assemblies.