How to Select the Perfect Excavator Long Boom for Your Project
Custom Solutions for Extended Reach Excavation
Compatible with Leading Excavator Brands
We specialize in custom fits for:
- Hitachi: EX200-5, ZX225 USLC
- CAT: 320D, 330, 336
- Komatsu: PC228, PC300
- Sany: SY500, SY650
- Doosan: DX300LC, DX340
See our complete compatibility list on page 12
Proven Applications Across Industries
Our long booms excel in:
- Coastal Engineering: 24m arm deployed in Philippines port expansion
- River Management: 18m dredging arms for Mekong Delta flood control
- Urban Construction: Low-noise 30m arms for Manila high-rise sites
Featured Project:
Hitachi ZX670 with 24m boom achieving 35% faster cycle times in seawall construction
Engineering Superiority You Can Trust
Material Advantages:
✔ Q690D high-tensile steel (optional)
✔ Military-grade Ningbo hydraulic couplers
✔ 45# reinforced steel sleeves at stress points
Manufacturing Precision:
- One-piece forged pivot joints
- Integrated forming technology
- Computer-balanced for smooth operation
The excavator extension arm is a globally acclaimed product known for its versatility and multiple functions. It has gained widespread recognition worldwide, showcasing its enduring appeal. Remarkably, despite over two decades of presence in China since its introduction in the 1990s, there remains no definitive national standard governing this product; modifications are primarily based on accumulated expertise. Initially regarded as a premium offering, it has transitioned into a more commonplace accessory. China has attained mastery in processing technology and design for this product, producing extension arms of comparable quality to imported counterparts.
Advantages:
| ✅ | Q355B for ear seat |
| ✅ | The middle sleeve of the boom adopts an integral forming process |
| ✅ | Flexible steel sleeve, convenient for maintenance and replacement |
| ✅ | Reinforced 45# steel for boom middle sleeve |
| ✅ | Smooth and full weld |
| ✅ | Acid cleaning and phosphating after welding |
| ✅ | Adopt high quality Ningbo connectors |
| Excavator Ton | Total Length(mm) | (A)Boom(mm) | (B)Arm(mm) | Maximum Digging Radius(mm) | Maximum Digging Depth(mm) | Maximum Unloading Height(mm) | Maximum Digging Height(mm) |
| 11-15T | 13000 | 7250 | 5750 | 11200 | 9000 | 7550 | 9350 |
| 20-25T | 15400 | 8220 | 7180 | 14500 | 11300 | 10400 | 12600 |
| 20-30T | 18000 | 10000 | 8000 | 17300 | 13000 | 17200 | 14000 |
| 35-40T | 20000 | 11000 | 9000 | 19200 | 14900 | 12900 | 15200 |
| 40-45T | 22000 | 12000 | 10000 | 21300 | 16000 | 14000 | 17000 |
| 40-50T | 24000 | 13000 | 11000 | 23000 | 17900 | 15200 | 18100 |
All parts you needed are included.
Long Reach Kits are Fully Compatible with ZHONGHE Excavator Standard Buckets, and Cylinder.
| Excavator long boom | Excavator long arm | Standard bucket |
| Linkage kit | Bucket cylinder | Lubrication hoses |
| Pins | Seals | High pressure hoses |
Usually use 40GP container to load product !
Contact sophia to inquiry details !
