Excavator Hydraulic Thumb , Graptor Bucket For CAT320

Catalogue ZH excavator boom arm.pdf

1. 14000㎡ Workshop with Precision Equipments
We has more than 14000㎡ steel structure standard workshop with a large number of high precision processing equipments.

2. High-tech R&D Team
We use precision drawing software to achieve the max working range under the premise of safe operation.

3. Experienced Workers
There are more than 60 skillful staffs, 30 welding workers with over 5 years welding experience.

4. Customization
(1)Match all brand excavator.
(2)Color, length, material can do according to you.
(3)Extra pipeline can be added to suit to some extra application.


5. Excellent Service
(1)24 hours online service.
(2)Can make an appointment for technical video support.

CE certification & Utility model patent certificates

Thumb bucket fit most excavators

1.Shallow depth, not easy to clay, improve unloading efficiency
2.Widened opening angle for easy unloading
3.Equipped with horn, easy to excavate
4.Main material is Q355B
5.Three reinforced ribs are built into the back plate to increase tensile strength and prolong its service life
6. Welding is full and smooth.



1. Standard bucket
Q355B material, standard plate thickness, and China high-quality bucket tooth base. It is mainly applicable to light operation occasions such as excavation of general clay and loading of sand, soil and gravel.

2. Rock bucket
Q355B material, NM400 optional. On the basis of the standard bucket, reinforcing plates are added at the bottom, and the tooth plate and side plate are thickened. It is mainly applicable to heavy and light industrial occasions such as excavation of hard soil and loading of soil, gravel and gravel mixed with soft sand.

3. Heavy duty rock bucket:
Q355B+Hardox500. On the basis of the reinforced bucket, the bottom plate and side plates are thickened. It is mainly applicable to the excavation of hard rocks, secondary hard rocks and wind fossils mixed in the soil; Loading of hard rock and ore after blasting.

Esteblished in 2018, Kaiping Zhonghe Machinery Manufacturing Co., Ltd., a manufacturing and trading combo, specializes in customizing different kinds of excavator boom arms and attachments