The three types of rocks, perlite , rosin and obsidian, have the property of expanding under transient high temperature conditions. The ore types of perlite are shown in Table 1. The type, grade and division of perlite ore are shown in Table 2. The factors affecting the expansion properties of perlite are shown in Table 3.

Single Girder Gantry Crane

Single girder Gantry Crane is a type of light small gantry crane with a single girder and rail traveling. Usually,the capacity no more than 20 ton can be designed as single girder gantry crane with Wire Rope Hoist.Widely used in factories, warehouses, stockyards, production workshops, and other occasions without brackets. Single girder gantry crane is able to meet the requirementof material transportation without changing the structure of plant.

Single Girder Gantry Crane,Single Girder Gantry Crane With Hoist,Single Girder Overhead Gantry Crane

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