Product Specification
Excavator Telescopic Boom with Bucket for Sumitomo, or Other Excavator
model(ton) | digging length (m) | weight(kgs) | bucket capacity(cbm) |
3-4T | 4 | 200 | 0.1 |
6-8T | 6 | 800 | 0.2 |
10-12T | 8 | 1300 | 0.35 |
20-27T | 10 | 2200 | 0.5-0.6 |
20-27T | 12 | 2600 | 0.45 |




How can we ensure the quality of our excavator long arms

Material selection and supply chain management
The boom arm are constructed using high-quality, certified Shaogang Q355B and Q690D steel. The hydraulic seamless pipe is sourced as per national standards, ensuring precision and seamless performance.
The pin used is made of 40MuCr alloy, while the high-pressure hose features a four-layer steel ring design.
The boom base incorporates a graphite alloy copper sleeve for enhanced durability and performance.

Production process and quality control
1. The long reach 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.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.
4. Environmentally friendly verified spraying room.
Some excellent designs of our sliding boom which excel other supplier 1. Telescopic cylinder double oil seal design extends the service life of the cylinder. 2. Built-in wear-resistant plastic slider, Easy to replace and maintain. 3. Cover plates are cut from a whole piece but not spliced, to be more firm and not easy to deform. 4. The double-limit design of the sliding cylinder prevents cylinder jolting and over-pulling. 5. The tube has leakage holes to reduce water accumulation inside the arm tube, thereby reducing internal corrosion.

1.Panel is cut by CNC plasma machine with less deformation
2.Each welder has more than ten years of experience to ensure stable quality
3.environmentally friendly verified spraying room
4.professional and beautiful paint finish
5.three layers with four passes welding
6.Graphite alloy copper sleeve
7.Seamless precision steel pipe
8.Centralized lubrication system

About ZhongHe Machinery Manufacturer
Kaiping Zhonghe Machinery Manufacturing Co., Ltd, a manufacturing and trading combo, specializes in customizing different kinds of excavator boom arms and attachments We have more than 14000m' 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 than 60 experienced technical staff, 30 welding workers with over 7 years of experience, 15 senior designers, and a high-tech R&D team. Our annual output of various types of excavator boom arms can reach 600sets. We supply products with high quality and moderate price, which sell well in more than 40 countries and areas. We adhere to" Merit Quality, Sincerity Management, and Customer Satisfaction", and honestly greet customers from home and abroad to negotiate and cooperate with us.


The Best Transportation Solution
Professional Lines: We maintain collaborative partnerships with a diverse range of professional shipping lines renowned for their experience and reliability. These established routes connect vital trade hubs, encompassing all continents and major countries worldwide. Our esteemed partners operate efficient fleets and offer scheduled services, guaranteeing timely delivery of cargo to its destination.
Competitive Freight Rates: Our unwavering commitment lies in providing competitive freight solutions, ensuring our customers benefit from cost-effective ocean shipping services. Through fostering strong collaborative ties with reputable shipping companies, we secure preferential pricing and discounts. This enables us to offer customers competitive freight quotations, empowering them to reduce logistics costs and enhance profitability.
Expedited Delivery: While ocean shipping may entail longer transit times compared to alternative transportation modes, we prioritize expeditious delivery through meticulous logistics management and optimized shipping schedules. Our dedicated focus on the transportation process entails close coordination with shipping companies and relevant agencies to ensure prompt departures, seamless transit, and punctual delivery to our valued customers.
FAQ
Q: Are you a manufacturer?
A: Zhonghe machinery offered a wide range of attachment parts for excavators and dozers. Such as long reach arm, demolition arm, telescopic arm, standard bucket, rock bucket, cleaning bucket, tilting bucket, etc. We know that the perfect combination of high-quality cast steel products and a moderate price is the key to success.
Q: Why choose zhonghe machinery?
A: We have a professional production team and design team to provide each customer with high-quality and personalized customer service to ensure correctness, so we have a good reputation in China, and our annual sales are among the best in our country.
Q: What can I get from you?
A: 1. The product is made of Q355B/Q690D steel, a superior and sturdy material on the market, and the steel is cut with a 45-degree slope and then gas welded, making it more sturdy and 30% longer than normal materials. 2. All accessories are included, no additional purchases are required. Professional online video guides installation to make installation worry-free. 3. Lifetime free online customer service consultation if you have any questions (reply within 12 hours).
Q: How do I start to order?
A: Firstly, talk to our sales about your machine model, working conditions, special needs and deadline. Then our sales will give you proposals FYR. You will receive a quotation ASAP after confirming the proposal.
Q: What are your terms of payment? A: We prefer T/T (50/50) through Ali Credit Insurance as a trial order.
Q: Are you always delivered on time? A: We can do is shorten our lead time while keeping the same quality level. So there will not be any problem even if the sea freight is delayed for a couple of days.
Contact Katherine Directly: Katherine@excavatorboomarm.com
Whatsapp:+86 18127538971
Company Details
Bronze Gleitlager
,
Bronze Sleeve Bushings
and
Graphite Plugged Bushings
from Quality China Factory
-
Business Type:
Manufacturer,Seller
-
-
Total Annual:
1500000-2200000
-
Employee Number:
100~200
-
Ecer Certification:
Verified Supplier
+ Read More