Founded in 1995 and as a member of China National Crane Conveyor Machinery Association, China Chuanda Conveyor Belt Co., Ltd. is a specialized plastic sheave manufacturer and custom plastic sheaves designer of various kinds of conveyors, belts, pulleys, bearings, rollers, bushings and so on. Through modern scientific management, excelsior products and technological design, advanced production tools and strict testing methods, we have produced various types of conveyance equipment. In 2001, we were certified by ISO9001: 2000, which has ensured the reliability and stability of product quality. Also, we have passed Germany DQS authentication in the domestic same trade. We have established long-term relationships with some famous mechanical manufacturers both at home and abroad, such as Veit GmbH, Hashima, Oshima, Summit, and KDK companies.

Acetal - the fundamental moulded sheave material with excellent U.V. and dimensional stability combined with the proven self-lubricating properties of Acetal. Glass reinforced Nylon sheave - the durability of Nylon, reinforced with glass fibres for enhanced strength, mechanical strength and impact resistance. Acetal sheave with Oilite® bearing - reliable moulded Acetal sheaves with an oil impregnated sintered bronze bearing for high load performance. Rare earth and nanometer strengthened engineering plastic is a kind of new engineering plastic successfully developed by our company in recent years. It is the optimum material as replacement for steel, copper and aluminum, etc.
All of our products made of the engineering plastic can directly replace metal material with no change to the original designing size, the properties of strength, stiffness and fatigue can meet to the requirements. Light weight: Reducing dead weight at the end of a boom, which provides mobile cranes with greater stability and lifting capability. Improved wire rope life: Self-lubricating, hardness lower than steel rope. Wear resistance: 8.8 times of steel, 8.3 times of copper. Improved the property of crane, little or non maintenance. Corrosive resistance: Non-corrosive benefits for sea use.

Timco uses only the best virgin cast polyamide 6 with a polymerization of 97% or better. This cast polyamide 6 or nylon 6 is cast in an open or centrifugal mold. It is a very tough and resilient material. Even under excessive loads, it will bend before it breaks. If broken, the material resembles a tear rather than the clean break one would find with steel. Cast polyamide 6 is the ideal material for sheaves in most applications where wire rope, wire, fiber rope, coated cable, fiber optical, flexible hose, and belt must be lifted, flexed, and guided. Its light weight is often the most important property of a nylon 6 sheave. It increases lifting capacity, reduces inertia and therefore, cable wear, and it facilitates handling.
The strength of a particular nylon 6 sheave can be calculated precisely. Please consult our sheave design leaflet, or complete the work sheet for sheaves and let us do the calculations. The corrosion resistance of nylon 6 sheaves against saltwater is well known. The material can be submerged in saltwater for decades. The service life of nylon 6 sheaves can be phenomenal. The Groove wear is slow due to elasticity of the material. Design variations are easy because the material can be machined at high tool speeds. Timco supplies sheaves with blank center bore, with bushings (bronze or plastic) or anti friction bearings securely mounted.

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