Horizontal Conveyors
Efficient transfer of bulk materials between process equipment, storage, and other conveying systems.
Engineered Bulk Material Handling
Industrial Screw Conveyors Engineered Around Your Material
Heavy-duty shafted screw conveyor systems designed for your material, capacity, layout, and operating environment — engineered and built in Cleburne, Texas.
Application-Engineered Designed around your material, capacity, layout, and operating environment.
Built for the Duty Carbon, stainless, and abrasion-resistant construction selected for the job.
Manufactured in Texas Engineered and built in-house at Orthman’s Cleburne facility.
Material First
The right screw conveyor starts with the application
A screw conveyor should not be selected by diameter and length alone. Bulk density, particle size, moisture, abrasiveness, flowability, temperature, capacity, incline, inlet loading, and duty cycle all influence the final design.
Orthman evaluates those variables to determine screw diameter, pitch, trough loading, speed, horsepower, shafting, flight thickness, trough construction, bearings, seals, and drive arrangement.
The result is a conveyor configured for the material and the job it has to do — not a one-size-fits-all catalog selection.
Screw Conveyor Configurations
Configure the conveyor around the job
Orthman screw conveyors can be arranged for straightforward transfer duties or customized around difficult layouts, multiple process points, abrasion, corrosion, and other application-specific requirements.
Inclined Conveyors
Engineered around angle, material behavior, capacity loss, speed, and horsepower requirements.
Multiple Inlet / Discharge
Collect from several points or distribute bulk material to multiple downstream locations.
Custom Engineered
Special troughs, oversized construction, replacement equipment, and plant-specific arrangements.
Built for the Duty
Construction matched to material and service conditions
Orthman can configure screw conveyors from carbon steel, 304 stainless steel, 316 stainless steel, abrasion-resistant materials, and combinations selected for the application.
- Standard, short, variable, ribbon, cut, cut-and-fold, and specialty flighting
- U-trough, flared trough, tubular, split-tube, and custom housings
- Heavier flighting, upgraded center pipe, AR liners, and hardfacing for abrasive service
- Application-specific bearings, seals, covers, drives, inlets, discharges, and supports
Final construction is selected after reviewing material characteristics, capacity, geometry, and operating environment.
Industries & Applications
Built for demanding bulk material handling
Orthman screw conveyors serve applications across cement and lime, mining and minerals, chemicals, agriculture, food processing, wastewater, biomass, and heavy industrial manufacturing.
Industries
Cement & LimeMining & MineralsChemical ProcessingAgricultureFood ProcessingWater & WastewaterBiomassPower GenerationAggregateGrain & MillingFertilizerHeavy Industrial
Materials Handled
Kiln dustLimestoneFly ashOres & concentratesPowders & granulesGrain & feedSludge & biosolidsWood chips & sawdustScreeningsAbrasive bulk solids
Conveyor or Feeder? The difference matters.
A screw conveyor transfers material from a controlled inlet. A screw feeder meters material from a hopper or bin under flood-loaded conditions. Orthman can help determine which design fits the application.
Ready to size your screw conveyor?
Send us your material, capacity, length, incline, and any drawings or specifications you already have — or start with the application worksheet. Our team will review the application and recommend a practical conveyor configuration.