Tubular conveyor belt

Tubular conveyor belt

Published:2014-09-09   Source:系统管理员    Click:
Features Parameters


The belt cord of tubular conveyor belt takes high-strength canvas or steel cable as its carcass in combination with high-strength high abrasion-resistance high-quality rubber as the top and bottom rubber cover, during the operation, the rubber belt is changed gradually from flat plane to U shape and finally is rolled into tubular shape so as to achieve enclosed conveying.


(1) In order to make the rubber belt takes on circular tubular shape, the tubular belt itself has appropriate transverse rigidness, which can ensure good retention and seal of tubular shape.

(2) The belt body has good elasticity and longitudinal flexibility, making the belt able to tolerate repeated and long-time violent bending and shrinkage;

(3) The belt has excellent physical and mechanical properties. Because when the tubular belt is conveying material, its belt body is stretched, and the cover rubber is long exposed to sunshine and weather, therefore, it is required that the outer cover rubber has higher resistance to weather, ozone, ultraviolet rays, flexure, cracking etc., while inner cover rubber should have excellent abrasion resistance.  

(4) Because of special structure of tubular belt, it conveys powdery material in tubular closed condition during the conveying, thus it can effectively prevent dust fly and spill. This not only avoids pollution to the environment and material wastage, but also can prevent exposure of material to sunshine, wind and rain, thus ensuring the quality conveyed material.

(5) By adopting tubular conveyor belt for conveying, the material is wrapped in the rubber belt, this increasing the area of contact between material and rubber belt and internal friction angle of material, thus can increase the inclination angle of material conveying of the conveyor. Ordinary conveyor belt only has 22° inclination angle, whereas that of tubular conveyor can reach over 30°, therefore, increased inclination angle of conveyor can shorten the horizontal distance of the conveyor and save investment.  

(6) With tubular belt adopted for conveying, after the belt presents tubular shape, it can run horizontally, vertically or curvilinearly, the conveying line can be arranged according to the space within a certain range without setting intermediate transfer station, therefore, construction investment can be saved. 

(7) Tubular belt conveying avoids bias with reliable running, improved conveying efficiency and better economic benefit and lower running cost. 

(8) With tubular belt for conveying material, the return run after discharge can also convey material, i.e. two-way conveying. This can not be achieved with ordinary conveyor belt. Because the return belt also presents tubular shape without material spill, there is no contamination and cleaning cost for the complete system.


It is widely applied in enclosed conveying of bulk materials in the sectors as of metallurgy, electric power, chemical engineering, harbor, wharf, building materials, coal, mine, grains etc. It has multiple types such as abrasion-resistant, heat-resistant, cold-resistant, corrosion-resistant, flame-resistant, antistatic etc. 

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