Founded in 1995 and as a member of China National Crane Conveyor Machinery Association, China Chuanda Conveyor Belt Co., Ltd. is a specialized variable speed pulley manufacturer and custom variable speed pulleys 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.

Lovejoy offers the most complete line of non-enclosed variable speed belt drives from fractional through 30 horsepower. Each component is made with the quality and reliability that Lovejoy builds into all of its power transmission products.
Features and Benefits. Very economical and reliable method of speed change. Allows the user to find the ideal. speed without changing sheaves and belts. Can be used as a highly efficient belt tensioner, with no adjustment necessary Offers a form of "soft-start," eliminating belt slip and premature wear on belt drives with inherent high torque start-up requirements. Applications That Best Fit Variable Speed Drives. Conveyors. Mixers. Printing Equipment. Packaging Machines. Agricultural Machinery. Pumps.

Swati Variable Speed Pulley Drives convert any standard constant speed motor to a variable speed instantly, accurately, smoothly & while the machine is in motion. The speed variation achieved is 1:3 and in combination with various fixed pulleys practically full middle speed range is covered.Pulley disks(A) slide axially along the serrated hub(B) and are forced on to the working flanks of the variable speed belt(C) by special basket shaped springs(D). These special basket shaped springs are located in rotational symmetry on both the disks & provide the required force for efficient power transmission. The connection between the pulley disks & the hub is through serrations. Due to these serrations, minor allowable surface pressures are maintained. Therefore a very long life is achieved.

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