300 Chase jaw chuck hole welding positioner machinery and equipment with high precision chuck chuck chuck shop for a variety of welding positioners, its chuck has a central through-hole, through-hole diameter, carrying capacity, and accuracy high clamping fast, easy to operate, easy expansion dead heat, can be installed to increase the clamping arm extended range. In addition there are a number of large chuck of stock, more than 1 ton of artifacts apply, if necessary, the details can contact customer service. 200 chuck: clamping range is 10-210; extended clamping range (need to increase with claws) 5-300; 300 chuck: clamping range is 80-280; extended clamping range (need to increase with claws) for 10-300; 400 chuck: clamping range of 120-380; extended clamping range (need to increase with claws) 20-500; 500 chuck: clamping range 200-500; extended clamping range (need to increase with claws) for 40-600; 600 chuck: clamping range of 150-620; extended clamping range (need to increase with claws) for 40-1500; Our products have some weight due to overweight, shipping logistics and shipping will be used some areas may be slower time, please pro a lot of understanding, because such products with conventional products is relatively large difference, so parents who want special circumstances special treat, do not hold regular Taobao mentality of such industry logistics services alike, in this heartfelt thanks to parents who understand! Technical Advisory: 13854177395/18764021182