Excavator Tunnel Arm adopts the same materials that is used on the standard boom and arm. With the shorter length of the body, the boom and arm will be much tougher in terms of durability. And it’s highly efficient while working in a limited working space.
Excavator Tunnel Arm
Description
HITE Excavator Tunnel Arm was designed to be a powerful tool on works such as: matro station construction, narrow space excavation, foundation work. Etc. The length of the tunnel arm and boom is shorter than the standard size arm and boom. It’s suit for excavator weights above 20T and could attached with breakers, crusher. Etc. It can easily lowered into position on sites below ground level.
Engineered with meticulous attention to detail, the Excavator Tunnel Arm boasts a robust construction that ensures durability and longevity. Crafted from high-quality materials, it can withstand the harshest working conditions, making it your trusted companion in any excavation project.
What sets the Excavator Tunnel Arm apart is its exceptional performance. Equipped with state-of-the-art hydraulics, this attachment provides seamless control and optimal digging power. With its impressive reach and enhanced digging depth, you can effortlessly navigate tight spaces and excavate deeper than ever before. Whether you’re working on tunnels, trenches, or other confined areas, this arm empowers you to accomplish your tasks with utmost precision.
Excavator Tunnel Arm General Arrangement Drawing
| Length of Boom(mm) | Length of Arm(mm) | Total Length (mm) | Weight (T) | Height (mm) |
| 5600 | 3300 | 8600 | 16 | 3420 |
| 5850 | 3400 | 8800 | 18 | 3420 |
| 6100 | 3500 | 9100 | 20 | 3440 |
| 6300 | 3750 | 9500 | 22 | 3620 |
| 6500 | 3950 | 9800 | 24 | 3850 |
High-quality materials
| Material | Code | Related Chemical Composition | Hardness(HB) | Extension(%) | Drag and extension intensity (N/mm2) | Bend Intensity (N/mm2) | ||||
| C | Si | Mn | P | S | ||||||
| Alloy | Q355B | 0.18 | 0.55 | 1.4 | 0.03 | 0.03 | 163-187 | 21 | 470-660 | 355 |
| Chinese High-Strength alloy | NM360 | 0.2 | 0.3 | 1.3 | 0.02 | 0.006 | 360 | 16 | 1200 | 1020 |
| High-Strength alloy | HARDOX-500 | 0.2 | 0.7 | 1.7 | 0.025 | 0.01 | 470-500 | 8 | 1550 | 1300 |
Our Excavator Tunnel Arm fit most makes and models, Include but not limit below models.
- Komatsu Excavator Model: PC160LC-8, PC200, PC210, PC228, PC220 PC270, PC300, PC350, PC450
- Caterpillar Excavator Model: CAT320, CAT323, CAT326, CAT329, CAT330, CAT335, CAT336,
- Hitachi Excavator Model: ZX210, EX200, EX220, EX330, EX350, ZX200, ZX240, ZX330, EX350
- Volvo Excavator Model: EC220, EC235, EC250, EC300, EC350, EC355, EC380
- Doosan Excavator Model: DX225, DX235, DX255, DX300, DX350
- Kobelco Excavator Model: SK200, SK210, SK220, SK250, SK260, SK300, SK330, SK350, SK380
- Sumitomo Excavator Model: SH210, SH225, SH240, SH300, SH330, SH350
- Hyundai Excavator Model: R200, R210, R220, R290, HX220, HX235, HX260, HX300, HX330, HX380
- KATO: HD250, HD400, HD450, HD550, HD700, HD800, HD820, HD900,HD1250,HD1430
- CASE: CX130B, CX210B, CX240B, CX360B
- LIEBHERR: R900C,R906, R916, R924, R926
- JCB: JS130LC, JS220LC, JS240LC, JS290LC, JS360
- SANY: SY200C, SY210C, SY225, SY310C
- SUNWARD: SWE130, SWE150, SWE200, SWE210, SWE230
Feature
1) Structure design based on FEA, more durable and efficient, saving your time on the shop.
2) All steels came from CSG, top 50 steel maker in China, Making sure the quality of of our main raw material.
3) Phosphating tube are used instead of normal tube, providing excellent anti-corrosion and anti-rust ability to better protect the hydraulic system, and provide more power to the work.
4) Cooper sets have been used on the connector instead of normal steel sets used on the market.
5) The sole ripper cylinder on the arm provides more possible movement to the machine and it’s easy to repair
