Zhonghe 20 Ton 18m Long Reach Excavator Booms Arm For CAT320D
1,Material: the material of the big and small arms is Shaogang
q355b, the iron pipe on the arm is national standard cold drawn
seamless pipe, the pin shaft is 40Cr, the high-pressure hose is a
joint-venture pipe with 4 layers of steel rings, the grease pipe is
a single-layer hose, and the bushing driven into the base of the
boom is graphite alloy copper sleeve.
2. Configuration: one set of big and small arms, six pin shafts,
four high-pressure hoses, three grease pipes, one set of connecting
rod assembly, one bucket cylinder and one bucket.
3. Product advantages: plasma cutting, machine milling, robot
welding, boring after welding, assembly line production operation,
and better quality assurance. It can be customized according to the
working conditions to meet the construction needs of different
users. The opening angle of the large and small arms can reach 163
degrees, and the excavation radius and height are larger.
4. Working conditions applicable to the lengthening arm: Municipal
Engineering, subway construction, river dredging, reservoir
cleaning and other water conservancy projects
| ✅ | Reinforced 45# steel for boom middle sleeve |
| ✅ | Smooth and full weld |
| ✅ | Acid cleaning and phosphating after welding |
| ✅ | Adopt high quality Ningbo connectors |
| ✅ | Reinforced 45# steel for boom seat sleeve |
| ✅ | Strengthen the inner part of the box and the boom seat sleeve with
inclined tendons |
| 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 |
For Materials:
The primary material of the boom and arm is Shaogang Q355B and
Q690D, the Hydraulic tubes are national standard precision
seamless, and the pins are 40MuCr, The high-pressure hoses consist
of four layers of steel rings, while the grease pipe is a
single-layer hose. The bushing, driven into the base of the boom,
is made of graphite alloy copper sleeve.
Our Long Reach Booms Sticks fit most market models, Include but not
limit:
Komatsu Excavator Model: PC160LC-8, PC200, PC210, PC228, PC220
PC270, PC300, PC350, PC450, PC600, PC850, PC1250
Caterpillar Excavator Model: CAT320, CAT323, CAT326, CAT329,
CAT330, CAT335, CAT336, CAT349, CAT352, CAT374, CAT390
Hitachi Excavator Model: ZX210, EX200, EX220, EX330, EX350, ZX200,
ZX240, ZX330, EX350, EX400, ZX470, ZX670, ZX870, EX1200, EX1900
Volvo Excavator Model: EC220, EC235, EC250, EC300, EC350, EC355,
EC380, EC480, EC750
Doosan Excavator Model: DX225, DX235, DX255, DX300, DX350, DX420,
DX490, DX530, DX800
Kobelco Excavator Model: SK200, SK210, SK220, SK250, SK260, SK300,
SK330, SK350, SK380, SK460, SK500, SK850
Sumitomo Excavator Model:?SH210, SH225, SH240, SH300, SH330, SH350,
SH460, SH480, SH500, SH700, SH800
Hyundai Excavator Model: R200, R210, R220, R290, HX220, HX235,
HX260, HX300, HX330, HX380, HX430, HX480, HX520, R1200
Our production process:
1. The extended arm plate is precision-cut using a plasma cutting
needle to ensure accuracy.
2. Before welding, the plate edges are milled (tapered) using a
large edge milling machine. This allows for deep penetration of the
weld into the steel plate, enhancing the overall performance of the
structure.
3. Flaw detection tests are conducted using specialized instruments
after welding.
4. After welding, a double-sided large-scale floor-standing boring
machine is employed for precision boring. This ensures the
long-reach arm concentricity during operation and extends its
service life.
5. Following grinding, a sandblasting process is carried out to
achieve a specific level of roughness and cleanliness on the long
arms. This enhances their strength, hardness, and corrosion
resistance.
Precision:
1. Tolerance within 5-10um
Hole drilling tolerance is within 5-10um, ensure accuracy.
2. Reach deeper and higher
The max work range and the max digging height are larger as the
angle of the boom and arm can reach 163 degrees.
3. High work efficiency and saving fuel
Lighter while taking into account the quality, not only ensures
work efficiency but also saves fuel.
Usually use 40GP container to load product !
Our factory in Guangdong Province produce Excavator extended arm ,
Contact us to get best price !
WhatApps : +8618127591702
Email : sophia@excavatorboomarm.com
