There are three types of hydraulic thumb: mounting weld on type, main pin type, and the progressive link type. The progressive link type hydraulic thumb has the better effective operating range than the main pin type, while the main pin type is better than the mounting weld on type. In terms of the cost performance, the main pin type and the mounting weld on type is much better, which make them more popular in the market. At Crafts, the width and tines quantity of the thumb could be customized according to your requirement.
