-
Excavator Boom Arm
-
Long Reach Excavator Booms
-
Excavator Telescopic Boom
-
Demolition Boom
-
Excavator Pile Driving
-
Excavator Rock Bucket
-
Excavator Rock Ripper
-
Excavator Tunnel Boom
-
Mechanical Excavator Grab
-
Hydraulic Log Grapple
-
Excavator Sliding Arm
-
Excavator Standard Arm
-
Excavator Thumb Bucket
-
Ditch Cleaning Bucket
-
Excavator Tilt Bucket
-
Excavator Skeleton Bucket
-
David CordovaHigh quality excavator boom with good price! I like it very much, so I brought 2 units of demolition arm again. The whole process went smoothly. Next time I need to buy excavator arms, I will buy them from here.
-
Vaina ConroyVery happy with the service provided. All questions were answered promptly. The product was as described and arrived on time. Great packaging. The biggest surprise was that the welding quality of the product exceeded my expectations.
-
William HollisterVery helpful. The excavator long reach arm I purchased are solidly built, well made and I have no doubt they will last for many years.
Custom Excavator Boom Arm , Doosan DX340 DX330 DX230 Excavator Long Reach Arm
Condition | Brand New | Video Outgoing-inspection | Provided Videos Of Excavator Boom |
---|---|---|---|
Warranty | 1 Year Warranty For Extension Arm | After Service | 7*24 Hours Online Video Support |
Material | Q355B Material | MOQ | 1 Set. |
Usage | Machinery Attachment For Excavator | Delivery Time | 9-27 Days |
Custom Excavator Boom Arm , Doosan DX340 DX330 DX230 Excavator Long Reach Arm
Product Presentation of Excavator Boom
The long arm of the excavator is made of Q355B steel, which has good strength and rigidity. The shaft sleeve of the extension arm is generally made of 45# steel and lined with a 40Cr bushing. The lubrication of the butter reduces the shear force generated by the frequent rotation of the shaft and the shaft sleeve, thereby prolonging the service life of the extension arm. The bushing is enlarged. It is located between the main body bracket and the working arm and is equipped with an extension arm. The extension arm is connected and supported by an oil cylinder. Extending the arm working cylinder and bucket cylinder, inside and outside the cockpit, the corresponding control system is equipped with a set of cylinders, which work in conjunction with the control arm. The telescopic work of the cylinder and the bucket cylinder can more than double the stroke of the bucket, and the stroke can be Higher, deeper, and farther. Especially suitable for mines, docks, warehouses, flood relief and special occasions. This is a major breakthrough in the 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 default Q355B, optional Q690D, Ningbo connectors, seamless precision pipes, graphite alloy copper sleeves, strong and lightweight barrels.
Built-in stiffeners. Professional welding skills for different bearing positions. Groove preparation before welding (45° edge excavation).
The drilling tolerance is within 5-10um to 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 applications.
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.
Excavator long boom
|
Excavator long arm
|
Standard bucket
|
Linkage kit
|
Bucket cylinder
|
Butter hose
|
Pin
|
Lubricating system
|
Seals
|
Specification 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 600sets. 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.