We can design and manufacture various clamshell bucket for any brand,covers swing type and non-swing type. Non-swing type uses excavator bucket cylinder oil pathway,no need to add hydraulic valve and pipeline: Swing type need to add one set of hydraulic valve and pipeline to control. Cylinders are with piston protective device even can scientifically solve the problem of the stress according to the different working environment or requirements from customers,choose the selected material,and finish the design by CAD,also obtain the integrates quality controlling procedure for welding,so that the hardness of the structure,using capability and quality can be enseres. The specification covers from 3 Ton to 45 Ton excavator.