Drag Chain Conveyors

Drag Chain Conveyors Engineered for a Wide Range of Material Handling Industries

The term drag chain conveyor is widely used throughout the material handling industry. Drag chain conveyors are an effective way to move or elevate bulk material and transfer it from point to point. The design, layout configurations, service duty rating, size of the drive, and type of chain and flight assembly are all components that make a significant difference on the quality, durability and longevity of any given drag conveyor.

The Efficient Operation of Drag Chain Conveyors

The principle operation of drag chain conveyors is based on material movement using a chain and flight assembly that is drawn along the bottom section of an enclosed housing. Drag chain conveyors are often a good choice for bulk processors, power producers, cement manufacturers and minerals processors for the conveying efficiency, minimal material degradation and reduced material loss due to the enclosed housing.

Drag chain conveyors use nearly 50% of the available space inside the conveyor housing for material movement. Belt conveyors only use about 20%. This means a greater volume of material can be moved in a smaller footprint, at slower speeds. Slower chain speed means less wear and less maintenance. Belt conveyors often compensate for their less efficient method of transporting material by operating at a higher velocity. However, this often increases the maintenance costs due to multiple lubrication points and bearing locations (roller assemblies) as well as resulting in material spillage.

Features and Components

Click the image below to see more detailed information about CDM Drag Chain Conveyors.

CDM En-Masse Features and Options

Drag Chain Conveying Features

  • The housing is dust-proof, weather-proof and can be gas tight
  • Moves material with minimal product degradation
  • Provides high hourly capacities
  • Low maintenance – only two lubrication points
  • Totally enclosed – inherently safe
  • Offers longevity and reliability with our exclusive drop-forged base chain design
  • Built for 24/7 operation
  • The chain is case-hardened alloy steel (550-650 BHN)
  • The segmental drive sprocket design features tooth replacement without removal of drive shaft
  • Complete with an auxiliary spring-loaded chain take-up
  • Optional catenary take-up
  • Abrasion-resistant construction

Convey Horizontally, Inclined, or Vertically or an L-Path or Z-Path Configuration

Drag chain conveyors not only afford an optimum 90% utilization of space – equating to a smaller conveyor moving higher volumes of material compared to other conveyor technologies – but they also can move material in a variety of inclines. This layout flexibility comes from the wide range of flight types we offer. Proper flight selection is key to conveying horizontally, on a degreed incline, or vertically.

Horizontal Drag Chain Conveyor Layout Inclined Drag Chain Conveyor Layout L-Path Drag Chain Conveyor Layout

The Chain Moves Material

When considering drag chain conveyors for a bulk material handling application, the chain is the most critical component to evaluate. The hardness formula, design, flight selection, strength, and wear resistance are critical factors we use to manufacture a drag chain that will offer the durability and reliability required to meet today’s plant operating demands. If the chain fails, production levels and delivery deadlines are missed. For 40 years, our chain has set the industry standard for quality. We have developed and perfected the optimum chain formula for strength and longevity. That’s why we are the conveying industry’s single greatest chain supplier to end users and OEM conveyor manufacturers. When you have a CDM chain, you know you have the best.

Drag Chain Conveying Options

In applications where the use of a dual strand conveyor is warranted due to chain pull and/or capacity requirements, we will often recommend the use of our twin drive station or twin strand conveyors. By providing our twin design we gain the advantages of a dual strand conveyor (added chain pull to allow slower chain speeds and increased sectional area for capacity) along with the advantages of a single strand conveyor (where uneven chain elongation, upset conditions and bent flights have little or no effect on performance).

CDM Slide Gates

We manufacture our own slide gates for each of our En-Masse and Drag Chain Conveyors. Our goal is to provide you with the best conveyors and components with the greatest longevity at a competitive price.