Guaranteed Extension Long Reach Excavator Dipper Arm 10M-18M With Bucket and cylinder for
Two Section 40-47T Excavator Stick Extension Long Reach
18 Meters with Bucket Excavator Dipper Arm
Product Presentation of Excavator Boom
The boom of the excavator is made of Q355B steel, which has good strength and rigidity. The extension arm sleeve is generally made of 45# steel, lined with 40Cr bushing. Coupled with the lubriion of butter, the shear force generated by the frequent rotation of the shaft and the sleeve is reduced, thereby improving the service life of the sleeve. It is equipped with an extension arm between the body support and the working arm. The extended arm is connected and supported by the oil cylinder, which increases the work of the extended arm oil cylinder and the bucket oil cylinder. There are corresponding control systems inside and outside the cockpit, and one set of oil cylinders is matched with one set of oil cylinders. Especially suitable for mines, docks, storage, flood control and emergency rescue and special occasions. It is a major breakthrough transformation of mining machinery and has great practical value.
| Material Use | Q345B, Q550D, Also can customize to customer requirements |
| Product Warranty Period | 6 months,9 months,1 Year |
| Product Size | Most lengths can be 34M, According to customer requirements, Any excavator model |
Advantages of Zhonghe Excavator Long Arm
Using high quality materials, such as Q355B as default, Q690D optional, Niningbo connectors, seamless precision pipelines, graphite alloy copper sleeve, and strong but light bucket cylinder.
Built-in reinforcing ribs. Professional welding skills towards the different bearing positions. Groove preparation(45° edge-mining) before welding.
Hole drilling tolerance is within 5-10um, ensure accuracy.

1. Applicable for all brand excavators.
2. Color, length, and material can do according to you.
3. Extra pipelines can be added to suit some extra appliions.
4. Boom cylinder and stick cylinder can also be supplied if the customer wants.
STRONG PRODUCTION CAPACITY:
We can produce 50 sets of excavator booms per month.
Our annual output of various types of excavator boom arms can reach 600 sets.
GOOD SERVICE:
1. Online support within 24 hours.
2. Appointment video technical support.
(Our engineers have focused on excavator boom and attachment for over 10 years)
All parts you needed are included.
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Excavator long boom
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Excavator long arm
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Standard bucket
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Linkage kit
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Bucket cylinder
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Butter hose
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Pin
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Lubriing system
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Seals
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Specifiion of Excavator Boom Arm
Weight |
Model |
Part Length |
Total length(m) |
Weight(kg) |
Maximum removal height(m) |
| Total Length(mm) | 25T | 8.5 | 16 | 2800 | 16M |
| Boom(A)(mm) | 2.3 | 900 | |||
| Arm(b)(mm) | 5.2 | 1700 | |||
| Maximum Digger Radius(C)(mm) | 30T | 9.5 | 18 | 3000 | 18M |
| Maximum Digger Depth(C)(mm) | 2.3 | 1000 | |||
| Maximum Unloading Height(E)(mm) | 5.2 | 1950 | |||
| Maximum Digger Height(F)(mm) | 35T | 10.5 | 20 | 3500 | 20M |
| Bucket Volume(m³) | 2.3 | 1100 |
Company Strength
Our annual output of various types of excavator boom arms can reach 600 sets. We supply products with high quality and moderate prices, 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.



FAQ of excavator long arm
A1: First, the whole long arm is lengthening, but the boom just lengthening from its middle sleeve to its end, so the original boom and stick cylinder can be used. Second, using the original parts can save you cost.
A2. Generally speaking, the 30-40 excavator longest arm suggests to be 8 meters, and can configure 0.1 cbm bucket, with no need for an extra counterweight. 55 excavator's longest arm suggests to be 12 meters, which can configure 0.1-0.15 cbm bucket, which needs 0.5 ton extra counterweight. 60-80 excavator longest arm suggests to be 12 meters, can configure 0.15-0.25 cbm bucket, need 0.5-0.7 ton extra counterweight.
It is not recommended to extend boom arm to longes the t length as mini excavator is easy to slosh.
Usually disconnecting the original boom arm, stick cylinder, then pin the new one is okay.
Kindly remind, use to prepare several containers to fill the oil before disassembling.
Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.













