SANY305 Extended Long Reach Excavator Booms 24 Meters Q355B Material ， Excavator Long CAT320D

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.

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

Esteblished in 2018, Kaiping Zhonghe Machinery Manufacturing Co., Ltd.，manufacturing and trading combo, specializes in customizing different kinds of excavator boom arm and attachments,Our main product as below:

-Excavator Long Boom
-Excavator Telescopic Arm
-Excavator Sliding arm
-Pile Driving Arm
-High Reach Demolition
-Excavator Tunnel Arm
-Heavy Duty Rock Arm
-Excavator Tilt Bucket
-Excavator Hydraulic Grapple

, which is sell well in more than 40 countries and areas.

Located in Cuishanhu New District, Kaiping City, Jiangmen City, Guangdong Province, China, we has more than 14000㎡ steel structure standardization workshop with a large number of high precision processing equipment as well as a strong and cohesive team. At present, there are more that 60 experienced technical staffs, 30 welding workers with over 7 years experience, 15 senior designers and a high-tech R&D team.

Double-sided boring machine: Double-sided boring machine, improves accuracy and consistency: It is mainly responsible for the post-welding boring of the boom arm and bucket to ensure the accuracy of the arm. Since the boring pin operations on both sides of the double-sided boring machine are carried out simultaneously, the processing accuracy and consistency of both sides can be guaranteed.

Our annual output of various types of excavator boom arms can reach 600 sets. We supply products at customer's model with high quality, moderate price, quick response and appropriate warranty.

We adhere" Merit Quality, Sincerity Management and Customer Satisfaction", honestly greet customers from home and abroad to negotiate and cooperate with us.

Welcome inquiry!

Contact Sales Manager Sophia!

Wechat： 18127591702
whatsapp: +86 18127591702
Email：sophia@excavatorboomarm.com