- The HAPMAN Difference
- Equipment & Systems
- Industries Served
- Common Challenges
Choose a Hapman En-Masse drag conveyor when your capacity requirements are measured in tons/per hour and distance demands range from 20 to 200’ or more. En-Masse drag conveyors are the best choice in a wide range of conveying applications; from minerals and mining, to power utilities, to chemical plants, and to building materials. This conveyor offers you the most trusted conveying technology coupled with unprecedented durability and limited maintenance requirements.
The En-Masse drag conveyor is often referred to as a drag conveyor but the operation of the En-masse drag has very important distinctions. The typical drag conveyor operates using a paddle or scraper that runs along the bottom of the conveyor housing. The design of the paddles and the ratio of conveying area to material volume means the material in a drag conveyor moves forward in a tumbling, turbulent manner. Unlike the drag conveyor, the En-Masse drag conveyor moves material in a large, single, stable mass, resulting in a smooth, gentle movement of material.
The En-Masse drag operating principle affords significant advantage over other conveying methods:
These flight options represent the most common designs. Other styles are available. The T- and BT-style flights are used for horizontal through slight incline applications, normally between 0o to 12o. The U-style can be used for horizontal/incline combinations through approximately 25o. The modified BT, O, OO, and OO with filler plates are utilized in horizontal/inclined applications through 90o.
Layout and Design
Conveying with an En-Masse drag conveyor affords you the ability to move large volumes of material in virtually any direction or layout. The flexibility in engineered design means we can provide the optimum conveyor layout to achieve all of your material handling and operating goals.
En-Masse drag conveyors have a capacity range of 2 STPH up to 1000 STPH for single strand conveyors. Larger capacity requirements can be handled using a double strand conveyor.
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Nominal Dimensions for Horizontal Conveyors
Typical L-Path Dimensions for Normal Medium Duty Conveyors
Typical Horizontal Dimensions for Normal Medium Duty Conveyors
The internal chain is the work horse of our En-Masse drag conveyor. Understanding the design characteristics will help you to understand why our chain is engineered for durability, reliability and longevity.
Our drop-forged conveyor chains and flight assemblies are specifically engineered for En-Masse drag conveying applications and provide superior longevity over other designs.