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En-Masse Drag Conveyors

En-Masse Drag Conveyors are the most 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. En-Masse Drag Conveyors are an optimum choice for bulk processors, power producers, cement manufacturers and minerals processors for minimal material degradation and reduced material loss due to the enclosed housing. The principle operation of both types of En-Masse Drag Conveyors is based on material movement using a skeletal chain and flight assembly that is drawn along the bottom section of an enclosed housing.
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Address:  Middle of Xinchang North Line, Xinxiang City, Henan Province, China


The En-Masse Drag Conveyors is a conveying device for continuously conveying powder, granules and small pieces of granular materials in a closed casing by means of a moving scraper chain. Since the scraper chain is buried in the material to be conveyed, it is called a buried En-Masse Drag Conveyors.
When transporting horizontally, the material is subjected to the thrust of the scraper chain in the running direction.The material is conveyed forward with the scraper chain to form a continuous overall material flow.
When lifting vertically, the material is lifted by the scraper chain in the moving direction.The continuous feeding of the lower part also causes the falling of the upper material to be subjected to continuous resistance, forcing the material to move upward with the scraper chain.
When these forces are greater than the friction between the material and the shell wall and the weight of the material, the material forms a continuous overall stream that is lifted.

basic parameter
Trough Width: 160/200/250/320/400/500/630/800 mm
Conveying Length: Up to 50 m
Handling Capacity: Up to 400 m³/h
Conveying Angle: Up to 25°
Chain Speed: 0.16/0.20/0.25/0.32 m/s
Drive Type: Gear motor / Motor+gear box
Tension Type: Screw+Spring take-up                

En-Masse Drag Conveyors is composed of housing, driving device, sprocket, chain, tension device, etc.


1. Have dust-proof, weather-proof housing that can also be gas tight.

2. Move material with minimal product degradation.

3. Have only two lubrication points for easy maintenance.

4. Are totally enclosed and inherently safe.

5. Features a segmental drive sprocket design that allows too
th replacement without removal of drive shaft.

6. Come complete with an auxiliary spring-loaded chain take-up and an optional catenary take-up.

7. En-Masse Drag Conveyors can accommodate applications with multiple outlets so that one conveyor can deliver material to multiple points. Multiple inlets are possible as long as only one is operational at a time.


En-masser drag conveyors are commonly used to transport coal ash, wood chips, garbage, or washing sludge in power plants, pulp and paper mills, and waste energy facilities. Drag chain conveyors can be configured to meet your unique specifications and keep your capital investment costs as well as operating and maintenance costs to a minimum.

1.Reduced costs
En-masser drag conveyor is designed to deal with bottom ash and fly ash in an efficient, dust-free and economical manner.

2.Take up less space
En-masser drag conveyor take up the minimum space while optimizing the handling capacity of the material.

3.Lower energy consumption
Because of the en-masser drag conveyor smaller frame, the conveyor also reduces average power consumption and increases your operating profits.

4.Low maintenance cost
When the unit is configured to comply with your specification, the need for maintenance decreases significantly. We use high-quality fragile parts to produce materials, which greatly prolong the service life of vulnerable parts. Reduced maintenance costs.


En-masser drag conveyor apply to Construction material, Steel / Metal industry, Chemical industry, Food industry, Sewage treatment and so on.

En-Masse Drag Conveyors Technical Specifications
Machine Item MS25 MS32 MS40 MS50 MS63 MS80
Chute Width(mm) 250 315 400 500 630 800
Capacity(t/h) 25/31.5 40/50 80/100 160/200 200/250 315/400
Max Conveying Distance(m) 50 50 50 50 50 50
Scrapper Chain Model 3002T 3002T 3003T 3003T 3003T 3003T
Allowable load(kn) 33.4 45 100 100 275 2100
Weight(kg/m) 13.87 15.36 25.34 25.34 47.6 52.32
Operating speed(m/s) 0.16/0.20/0.25/0.32
Selection instructions

1.Material to be processed: ______                                             
2.Handling capacity: ______ t/h
3.Bulk Density: ______t/m3                                                                                                 
4.Center distance between the inlet and outlet:______ m
5.Max. granule size of the feeding material:______mm                 
6.Is the equipment mounted horizontally or inclined? If it is inclined,what is the inclined degree______°
7.What equipment is used to feed the material into the en-masse drag conveyors:______
8.What equipment is used to discharge the material from the en-masse drag conveyors:______
9.Working power supply: ______ V ______ HZ
10.Does the en-masse drag conveyors work alone or with other equipment to form a system? If forming a system, do you have preliminary design or hand-drawn sketch? If have,please send it to our engineer for reference.

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