Drag Conveyor Operation
Our Drag Chain Conveyors Support Your Productivity:
- Eliminate dust and feedstock loss with sealed housing
- Exclusive chain formula - long-life and increased uptime
- Chain and flight design selected for each unique application
- Flight spacing in chain design engineered for optimum material movement with feedstock variability
Chain Analysis Reveals Why Formula Matters
The data presented below are the results of an independent lab chemical analysis. The analysis was performed using 10 different industry available drag chains currently selling in the industrial market. Of the 10, we show 6 here because 4 were not even alloy steel making them an unequal comparison to the CDM Systems Chain Formula. The 6 manufacturer’s chain assemblies that use an alloy steel are shown below.
Chemical Analysis and Micro Structure Testing of Various 142MM Pitch Chains
Micro-Structure
| CDM | A | B | C | D | E | |
|---|---|---|---|---|---|---|
| Core Hardness (BHN): | 300-400 | 300-400 | 300-400 | 415 | 300-400 | 355 |
| Case Hardness (BHN): | 550-650 | 550-650 | 550-600 | 535 | 500-550 | 550-650 |
| Effective Depth of Case: | .035 | .022 | .025 | .010 | .012 | .055 |
The Chain Formulation Means the Difference Between Potential Catastrophic Failure and Operating Long-Term at Full Capacity
The most important feature of any drag chain formula is the effective case hardness depth. Once this case is worn through, elongation will accelerate and become a significant factor in maintenance. However, case depth is not unlimited and not the only factor in building a strong chain. The right formula or case hardness and ductility are critical. Too hard, as with a depth noted above of .055 and the ductility and impact resistance will be compromised and cause failures.
SEE FULL DETAILS OF CHEMICAL ANALYSIS:
Application Experience
Utility Uses Farm Waste to Generate Power and Capitalizes on Revenue Streams
 DOWNLOAD PDF | CHALLENGECDM was contracted to provide a layout, conveyors, drives, structural steel towers and catwalk trusses for approx. 500 ft. of the conveying distance. Total conveying distance of the product is approximately 600 ft. Conveyors were designed at a rate of 20 TPH of Ash. In the event of boiler failure the conveyors are also required to handle the unburned fuel at a rate that exceeds 20 TPH. PRODUCTS UTILIZEDDrop-Forged Chain  |
