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Towline is to the built-in cable, tubing, pipe, water pipes to traction and protection function. Because the towline itself weight and the built-in cable, tubing, pipe, pipe weight determines the towline itself has a supporting length limit. Different types and materials of the towline, do not support the length limit is different. If you need to use the chain length exceeds this does not support the length limit to how to do? This paper mainly introduces several solutions for your reference.

One. According to the environmental conditions can be added to support wheel.

Device can be fixed on the supporting wheel can be used directly without supporting frame supporting wheels, chain frame in the support wheel reciprocating operation. If the equipment can not be fixed supporting wheel, can be used with a support frame supporting wheel, a supporting wheel is fixed on the supporting frame, power chain frame in supporting wheels run to and fro.

Two can be used to guide groove. A guide groove is composed of five parts: the standard length of side guide wall, a guide groove connecting angle, the mounting screw, bottom groove, sliding device. The sliding device is divided into several kinds: nylon wheel, steel sliding plate, plastic sliding plate. The guide groove is correspondingly divided into three kinds: （ a ） with a nylon wheel guide groove, （ b ） strip sliding plate guide groove, （ c ） with plastic sliding plate guide groove

Three. If the environment does not allow to use the above two kinds of support, can use the built-in stiffener form to solve warpage problems