Zhonghe 20 Ton 18m Long Reach Excavator Booms Arm For CAT320D
Long reach excavator is a large work range and can fulfill lots of
projects that need larger work range requirements for excavators.
Long reach boom is very popular in lots of constructions, such as
subway construction, dam construction, etc
Long reach boom is also very popular and highly efficient in
dredging work, dredging rivers, dredging sea, dredging ports, etc
1. We have more than 10 years of experience in customizing all
kinds of long booms for all kinds of excavators.
And we have detailed dimensions of most excavators, so just giving
us the excavator model is ok.
For this SANY305 Excavator, we also have detailed dimensions.
2. Main sheet Material of this SANY305 excavator long reach boom is
Q345B + Q690D, the top and bottom cover plate of the boom and stick
is Q690D, and another sheet is Q345B, Pin’s material is 42CrMo4.
3. Before welding, we have to use a big edge milling machine to
mill the edge of the sheet. So the welding can go to the internal
of the steel sheet and make the structure have higher performance.
4. Our Welding is protective gas welding, the protective gas is 80%
Argon and 20% CO2 mixed.
5. If your long boom needs an extra auxiliary hydraulic pipe for
the breaker or other attachments, we also can prepare it for you.
And the auxiliary pipe also has stop valves on both ends, it's easy
to replace attachments.
6. For big excavators with long material handling arms, we usually
adopt cast base, much stronger.
7. For all long boom we produced, will supply the following parts:
Bucket:1 pcs
Linkage:1 kits
Bucket cylinder:1 pcs
Hydraulic pipe:1 kits
Lubricant pipe:1 kits
Counterweight(if need):1 pcs
Stick cylinder: Can match the original stick cylinder to save cost,
if you need it, we also can prepare it.
For bigger excavator(tonnage higher than 50ton), we advise using
the original stick cylinder, the original cylinder quality is much
better.
| 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 Company Zhonghe Machinery exports heavy machinery to more than
35 countries at very competitive prices. We primarily focus on
excavators extended boom arm and buckets. if you’re looking to buy
any , please get in touch with me. Thank You.
whatsapp +86 18127591702
sophia@excavatorboomarm.com
