Long distance belt conveyors require the use of a dynamically adjustable tension device: during the startup phase, the dynamic anti slip requirements of the belt conveyor are met, and during the constant speed phase, the tension is reduced to maintain the normal operation of the belt conveyor. At the same time, there is a real-time tension monitoring function. The elongation of long-distance flame-retardant whole core tape in coal mines is 10 times that of conventional belts. Simple tensioning devices such as winches or heavy hammers are limited by their tensioning distance and force, making it difficult to adapt to the starting, running, and braking requirements, especially for belts above 500 meters
The hydraulic automatic tensioning device is a new type of product developed based on the operating characteristics and force model analysis of belt conveyors, as well as a large amount of experimental data. It ensures the belt's requirements for tension and buffering during starting, running, and braking.

Functions and characteristics of hydraulic tensioning device
1. This device can automatically achieve the tensioning action of providing starting tension and running tension for the belt conveyor, to meet the different requirements of preventing slipping during belt startup and normal operation of the belt for tensioning force
2. The hydraulic tension buffer device of the hydraulic tensioning device can timely eliminate the loose edges during the start of the tensioning tape machine, improve the starting characteristics, and reduce or even eliminate other tension surges and tape binding phenomena
3. This device not only automatically provides starting tension and running tension, but also automatically provides belt stop tension according to user needs, which not only saves energy consumption but also extends the service life of the belt
4. The tensioning device can achieve automatic tensioning within a large range of travel according to the actual tensioning stroke needs of the user, which can adapt to the tensioning requirements of whole core tape machines and long-distance tape machines with high elongation
5. When the machine is shut down or there is an unexpected power outage, the tensioning device can achieve self-locking and still reliably ensure that the conveyor belt is in a tensioned state
6. This device is equipped with a reliable tension monitoring system, which can respond and adjust to tension changes in a timely manner. Effectively preventing slipping during the operation of the belt conveyor
7. Our company's products can be matched with the belt operation monitor produced by our company to achieve tension detection, belt breakage detection, and slip detection. At the same time, the control system responds accordingly based on the detection results
8. For small belts: Our company's products have been specially designed to achieve automatic deviation correction function.