Mobile Base
Allows you to move from process to process, replacing multiple conveyors.
Why use a flexible screw conveyor?
Flexible screw conveyors (also known as a helical screw conveyor, screw conveyor, or auger conveyor) use a single rotating flexible screw (auger) inside a tube to convey material horizontally or at an incline. Its simple design, dependable operation, and compact footprint make it an economical solution for moving materials between processing, packaging, and storage equipment.
What Sets Hapman’s Helix® Conveyor Apart?
The Hapman Helix® flexible design adapts effortlessly to your facility’s layout, ensuring efficient and consistent material movement. With standard T-handle couplings, you can disassemble this conveyor in just minutes for easy cleaning and minimal downtime.
Integrate the Helix® with other bulk material equipment from Hapman like the Bulk Bag Unloader, Bag Dump Stations, or Bulk Bag Filler for a complete conveying system.
The Hapman Performantee®
Our Performantee is a 100% operational guarantee that you will be fully satisfied with the performance of our equipment, and that it will achieve the specific results for which it was designed and manufactured. If not, we will revise or repair it to deliver the results we promised.
Ships in 2 Days or Less!
We designed our Hapman Helix Flexible Screw Conveyors to provide customers with an economical conveying method that can be used for most types of dry material handling applications.
Product Details
Features
Each Hapman flexible screw conveyor is built from components you can configure around your material, process, and facility.
Auger
Stainless-steel flexible screw options are selected to match material properties and conveying requirements.
Casing
An enclosed casing of UHMW polyethylene or stainless-steel helps contain material throughout transfer.
Sensors
Monitor material levels in the hopper or receiving vessel, signaling high or low points to help prevent overfills and keep material supplied.
Coupling
T-handle coupling allows quick auger removal for cleaning and maintenance.
Motors
Choose from TEFC, washdown, or explosion-proof motors to suit the operating environment.
Performance Specifications
Use the ranges below as a starting point, then talk with our team to size the right system for your application.
Volume
30–1,500 ft³/hr
Distance
Up to 80 ft
(24.38 m) horizontal
Height
Up to 30 ft
(9.14 m) discharge
Bulk Density
15–50 lbs/ft³
Incline
0°, 30°, 45°, 60°
Models
Standard Helix®
Ships in 48 Hours
Dairy
P-300
Ships in 48 Hours
Auger Options
The right auger for your material makes all the difference. Hapman offers a range of stainless-steel auger designs, each built to handle different material characteristics and conveying needs.
Bevel Edge
Best for sticky or cohesive materials that tend to build up on the screw.
Examples
Titanium Dioxide, Zinc Oxide, Cocoa Powder
Flat Wire
Best for fine powders and free-flowing materials that need gentle, consistent transfer.
Examples
Flour, Starch, Talc
Round Wire
Best for granular material with good flow characteristics.
Examples
Salt, Sugar, Grains
Heavy-Duty Square
Best for abrasive materials and demanding applications that need added durability.
Examples
Coarse Salt, Zircon, Iron Oxide
Flow Aid Options
Some materials don’t flow easily from the hopper into the screw. Flow aid options help keep material moving into the conveyor for a steady, consistent feed.
Rotary Blade
Helps break apart soft agglomerations for easier discharge into the conveyor.
Examples
Frozen Vegetables, Granola
Hopper Mounted Air Pads
Use low-pressure air to reduce material packing and improve flow into the conveyor.
Examples
TiO₂, Calcium Carbonate
Vibratory Hopper
Uses vibration to encourage material flow into the conveyor inlet.
Examples
Lime, Ground Coffee
Pin Agitator
Agitates fine powders and semi-free-flowing materials to reduce bridging and maintain flow into the conveyor.
Examples
Polymer Powder, Protein Powder
Ribbon Agitator
Helps prevent bridging and ratholing in sluggish-flowing materials.
Examples
Pancake Mix, Almond Flour
Round Bar Agitator
Promotes flow of higher-density, sluggish materials in larger surge hoppers.
Additional Options
Loss-in-Weight
Load cells are built into the hopper base for a fully automated dosing system equipped with programmable batch controls system integration. Also available with Hi/Lo functionality.
Inlet Boot
Fully Interlocked quick release inlet assembly for easy hopper maintenance, cleaning and auger removal.
Right Angle Drive
Designed to fit under low ceilings.
Center Core
Mitigates challenges when conveying very dense, fluid or highly aerated material.
Controls
Our in-house engineering team and panel shop supply standard configurations as well as custom packages for automation process optimization.
Case Studies
Industries
Hapman’s engineering team has helped customers with Helix® flexible screw conveyor applications in the following industries:
Chemical & Pharma
Food Industry
Polymers & Plastics
Wastewater Treatment
Flexible Screw Conveyor Configurator
Use the Hapman Configurator for on-demand access to design custom solutions for your application and immediately obtain reference models and drawings.
Get Started with Helix®
Want to see why Helix® is the best fit for your product? We can run sample conveying tests on certain materials. Get in touch with our team to customize your specs to exactly what you need.
Want to talk to a technical specialist about your specs for flexible screw conveyor?
Looking for a pneumatic conveyor instead of a mechanical conveyor?
Check out our specs for the MiniVac™ Vacuum Conveyor.
You’ve got questions? We’ve got answers! Check out our FAQs.
-
What materials can a flexible screw conveyor handle?
Flexible screw conveyors are designed to efficiently handle a wide range of materials, particularly dry bulk solids, powders, granules, and pellets. With a focus on versatility, they are ideal for various industries, from food processing to agriculture, construction, pharmaceuticals, and more.
- Powders – Flour, cement, powdered chemicals, plastic powder
- Granules and Pellets – Plastic pellets, feed pellets, fertilizers, granular chemicals
- Seeds and Grains – Rice, corn, wheat, soybeans, and other oilseeds
- Fibrous or Lightweight Materials – Wood chips, cotton fibers, cottonseed hulls
- Free-Flowing Bulk Solids – Sugar, salt, spices, coffee beans, plastic resins
- Sticky or Cohesive Materials – Oily powders, chocolate, moist or tacky granules
- Abrasive Materials – Sand, metal powders
- Pharmaceutical and Chemical Compounds – APIs and fine chemical powders
-
How is a screw conveyor different from a pneumatic conveyor?
Flexible screw conveyors use a rotating screw to mechanically move bulk materials through an enclosed tube, while pneumatic conveyors use air pressure or vacuum to transport material through a pipeline. Flexible screw conveyors are often the better choice for shorter conveying distances, controlled feeding, and applications requiring a simple, cost-effective solution. Pneumatic conveyors are better suited for longer conveying distances, complex routing, and applications where material must travel between multiple processing areas.
-
What are the benefits of an enclosed screw conveyor?
Enclosed screw conveyors provide clean, efficient transfer of bulk materials while helping contain dust and minimize product contamination. Their compact design allows them to integrate easily into existing production lines, and the enclosed conveying path helps reduce material loss, simplify housekeeping, and improve operator safety. Combined with their simple mechanical design and few moving parts, enclosed screw conveyors offer a reliable, low-maintenance solution for many bulk material handling applications.
-
What conveying angles can a flexible screw conveyor operate at?
Helix® Flexible Screw Conveyors can be configured to convey bulk materials at 0°, 30°, 45°, and 60° inclines, depending on the application. The ideal conveying angle depends on the material being handled, required capacity, and overall system layout. Hapman’s specialists can recommend the best configuration based on your material characteristics and production requirements.
-
What feed rates can a flexible screw conveyor handle?
Helix® Flexible Screw Conveyors can convey 30 to 1,500 cubic feet of material per hour, depending on the material, conveyor configuration, and operating conditions.
It’s important to note that a flexible screw conveyor is designed to convey material, not meter it. While the conveyor transfers material at a continuous rate, it is not intended to provide the precise, repeatable dosing of a dedicated feeder. If your application requires accurate ingredient addition or batch control, Hapman also offers volumetric and loss-in-weight feeding systems.