环形输送带是在生产过程中将输送带制成无接头环形输送带(环型输送带)，其特点是带芯没有接头，没有因接处早期损坏而影响使用寿命，胶带表面平整、张力均匀，因此胶带运转平稳，使用伸长率小。环型输送带，环状输送带： 环形输送带系指生产过程已将输送带制成无接头的环形输送带，其带芯接头处强力可达到胶带本体强力的90%，胶带表面无明显接头缺陷，因此，胶带运输平衡，使用伸长小。环形输送带带芯用优质全棉或维棉交织帆布制成，一般2-6层或用NN-200型尼龙帆布（或聚酯 帆布）作强力层。

Belt conveyor belt is made of non joint circular conveyor belt in the production process (ring belt), which is characterized with no core joints, not because of joint early damage and affect service life, smooth surface, uniform tape tension, so the tape running smoothly, low elongation. Ring belt, ring belt conveyor belt: refers to the production process has been made without a joint circular conveyor belt conveyor belt, the belt joint strength can reach 90% strong belt body, no obvious joint defects, the surface of the tape, tape transport balance, the use of small elongation. An endless conveyor belt with high quality cotton or cotton interwoven canvas belt core, 2-6 layer or NN-200 type (or nylon canvas, polyester canvas) strong layer.