QZType grab double beam craneWidely applicable to power plants、货场、workshop、wharf、metallurgy、cement、The warehouses and workshops of chemical and other enterprises are engaged in ore production indoors or outdoors, with fixed spans、石灰石、Mineral powder、焦炭、煤砂等散粒物的搬运装卸工作。双梁Grab bucket crane为重级工作制，Work level isA6。The rated lifting capacity is generally5T、10T、16T、20t，Grab bucket张开方向有平行和垂直主梁两种。取物装置为双卷筒的四绳Grab bucket，Simple structure，工作可靠。

QZType grab double beam craneGrab bucket可在任意高度张开和闭合。Grab bucket只适用于自然堆积状态下的散粒物料，When grabbing underwater materials or special materials，须在订货时特别提出。可在室内也可在室外使用，室外使用时增加防雨罩装置。

QZType grab double beam crane由箱type桥架、Crane operating mechanism、Small car、Grab bucket、电气设备五部分组成，全部机构均在操纵室内操纵取物装置为双卷筒的四绳Grab bucket，Simple structure and reliable operation。Grab bucket可在任一高度张开和闭合，当抓取物料颗粒大于200mm时需选用带齿Grab bucket。

QZType grab double beam crane特点：
1、Improve production efficiency
for example：QZType grab double beam crane诞生前，装卸Mineral powder，Used in the warehouse10~13A worker，每人一把铁锹，3Individual group，每组拿个大皮网兜，一锹一锹往大皮网兜里锹Mineral powder，一个网兜多能网5吨货。网兜锹满后，再用Grab bucket crane吊起来。一个船仓9I can only do it in a little over an hour300吨货。而如今QZType grab double beam crane卸矿，每小时就能卸2000吨矿，大大提供了生产效率。

2、提高生产安全性
for example：Grab bucket crane诞生前，装卸原木，Used in the warehouse5~7A worker，先用小钢丝绳在原木堆的断面缝隙里穿来穿去，围成估计的面积，Hang the two ends of the small steel wire ropecrane的钩子上，Lifting1~2米距离，Raise one end of the log，然后工人拿一根16~28的钢丝绳，There are also heavy hooks at the front end of the steel wire rope，从被提起一头与木堆的空挡里甩过去，另一边的工人快速接住，否则钢丝绳连着钩子会滑落到木堆凹槽里，The wire rope throwing worker needs to pull up the wire rope and throw it again，Or the worker on the other side uses a tool with a long wooden stick and hooks to scoop up the steel wire rope，Then the hook is hung on the steel wire rope to tie up the logs....在这过程中原木可能会滚动，压伤工人的手脚，也有可能工人多捆了原木超载，钢丝绳在空中断了，More than ten or dozens of logs fell into the air，会将人砸死。后来包起帆发明了木材Grab bucketDouble beam crane，大大减少了人身伤害事故。