
We can make excavator boom arm/stick same as original boom stick length, and we can do some modification
Longer Boom Stick enable your machine reach longer in forward and digging depth, the drawback is that it usually reduce arm crowd force, and lifting capacity.
The premise of Excavator Boom Stick modification is that the force from the boom stick and loaded attachment should not exceed the standard excavator setup. If you increase the boom arm length, that means lifting capacity needs to be reduced according to the lever principle. A Long Reach Boom Stick with a big bucket will make the excavator unstable and put both the excavator and operator in dangerous conditions.
Shorter boom/arm options have an opposite effect. Shorter Boom Arm/Stick can work with a bigger bucket or other attachment and it has greater arm crowd force.
As an Excavator Boom Stick and Attachment Manufacturer, we can design and make suitable boom and stick and bucket according to your application.
1, Our excavator boom arm designed based on force analysis, Product drawing generated by CAD, engineer from Caterpillar company, 2, we have professional digital cutting machine to cut plates in good shape, 3, skilled welding worker with more than 10 years welding experience. 4, diligent cleaning work before painting

Our product can well fit these excavator brands: KOMATSU,HITACHI, CATERPILLAR,SUMITOMO, HYUNDAI, KOBELCO, KATO, SANY,DAEWOO,VOLVO etc.

| Excavator Model | Boom Lenth(M) | Arm Length(M) |
|---|---|---|
| 10 ton | 4.4 | 2.91 |
| 12 ton | 4.6 | 3.12 |
| 20 ton | 5.7 | 3.75 |
| 22 ton | 5.85 | 3.96 |
| 25 ton | 6.15 | 4.05 |
| 30 ton | 6.47 | 4.118 |
| 33 ton | 6.15 | 4.21 |
| 35 ton | 6.43 | 4.185 |
| 40 ton | 7.55 | 4.425 |
| 45 ton | 7.12 | 4.43 |
