Vertical Screw Conveyors

Orthman Conveying Systems (OCS) started in 2003 in Lexington, NE as a bolt on company to Orthman Manufacturing Inc
vertical-screw-conveyors

VERTICAL SCREW CONVEYORS

The Orthman vertical screw conveyor system is a great solution to many material handling problems by providing a cost effective elevating action with minimum space requirements. The vertical is fed by a horizontal feed screw which is synchronized with by speed and feed rate. Both the feed screw and the vertical are driven by independent screw conveyor drives. We offer this system in multiple materials of construction including carbon, abrasion resistant, stainless or any combination.
Although we have standards the length of the feed screw, the height of the vertical as well as the diameter of each can be designed to each specific application.

The Optimal Solution for Elevating Materials

The Orthman system is a premier solution for diverse material handling needs, offering efficient vertical elevation of materials in a space and cost-optimized design. Essential for transporting dry to semi-dry bulk materials, it is particularly adept for handling wood products and free-flowing substances. The system combines a horizontal feed screw and a vertical screw, synchronized for maximum efficiency in speed and feed rate, each powered by independent drive units for precise control.

Available in various materials like carbon, abrasion-resistant constructions, and stainless steel, it can be customized in terms of the length of the feed screw, the height of the vertical conveyor, and diameter, providing a versatile solution tailored to individual application requirements.

Vertical Screw Conveyors

Features

Our vertical screw conveyors come equipped with several integral components, each designed to perform seamlessly and ensure the longevity and reliability of the system.

  • Comprehensive inlet section
  • Durable head section
  • intermediate sections
  • Strong pedestal
  • High-quality screw
  • Efficient drive unit
  • Adaptative feeder screw
Advantages

Orthman vertical screw conveyors offer numerous operational benefits, making them a preferred choice for various industrial applications.

  • Advanced and efficient design
  • Simple installation process
  • Compact requiring less space
  • Economical and cost-effective
  • Option for a dust-tight system
  • Flexible material discharge in any direction
  • Capable of up to 40’ of elevation
Application

Our vertical screw conveyors are versatile, serving a range of industries and materials with reliability and precision.

  • Animal Feed
  • Pet Food
  • Food Processing Industries
  • Ice Handling
  • Pellet Transportation
  • Bone & Blood Meal Handling
Design Specifications

The design of our vertical screw conveyors is the epitome of innovation and precision, aiming to fulfill every operational demand efficiently.

  • Capacity ranges between 400 to 6,000 cubic feet per hour
  • Optional internal bearings available but not recommended
  • Typical vertical speeds are between 150 to 250-rpm
  • Equipped with “kicker” paddles at discharge
  • The discharge height is limited to about 50-feet
  • Requires lateral support at the drive end
  • Horizontal feed screw is 45-percent loaded
  • Horizontal and verticals are typically of the same diameter
  • Necessary lateral supports to structure every 10 to 12-feet

 

 

 

 

FREQUENTLY ASKED QUESTIONS

How does a vertical screw conveyor work?

A vertical screw conveyor elevates bulk material straight up using a vertical screw fed by a synchronized horizontal feed screw. The feed screw and vertical screw run on independent drives matched by speed and feed rate, delivering a cost-effective elevating action in a very small footprint.

How high can Orthman vertical screw conveyors lift material?

They are designed for elevations up to about 40 feet, with capacities ranging from roughly 400 to 6,000 cubic feet per hour. The height of the vertical, the length of the feed screw, and the diameter can all be designed around your specific application.

What materials of construction are available?

Vertical screw conveyors are offered in carbon steel, abrasion-resistant construction, stainless steel, or any combination. The choice depends on the product being handled — for example, stainless for food-grade work or abrasion-resistant plate for wear-prone materials.

What materials do vertical screw conveyors handle best?

They are best suited to dry to semi-dry, free-flowing bulk materials. Common applications include animal feed, pet food, food processing, ice handling, pellet transportation, and bone and blood meal handling. A dust-tight configuration is available where containment is required.

What are the advantages of a vertical screw conveyor?

They are compact and space-saving, economical, simple to install, and can discharge in any direction. An optional dust-tight design supports clean operation, and the synchronized feed-and-vertical screw arrangement provides efficient elevation without the larger footprint an inclined conveyor would need.

Are there design limits I should know about?

Yes. Vertical speeds typically run 150–250 rpm, the horizontal feed screw is about 45% loaded, and the horizontal and vertical screws are usually the same diameter. The unit needs lateral support at the drive end and to the structure roughly every 10 to 12 feet, with “kicker” paddles at the discharge.