Zhonghe Machinery Factory Produce 20M Excavator telescopic arm For Excavator Cat320

✅ Enhanced Plate Strength and Reduced Weight: Utilizing BS900 material, the overall plate strength of the rock arm is significantly increased while reducing the weight. This results in a lighter load for the excavator without compromising strength.

✅ Innovative Internal Cylinder Design: The internally designed long cylinder incorporates a unique slider mechanism to eliminate cylinder vibrations. This innovative feature prevents shaking during expansion and contraction, reducing the failure rate of the cylinder and minimizing pipeline vibration.

✅ Double-Layer Iron Pipe Design: To address pipeline vibration and leakage issues, the telescopic iron pipes feature a double-layer design. This design effectively reduces pipeline vibration and minimizes the failure rate, ensuring improved performance and durability.

✅ Convenient Maintenance and Enhanced Excavation: The bucket cylinder is placed outside the arm, allowing for the easy replacement of the cylinder and connecting rod assembly as a whole. This design facilitates convenient maintenance while enhancing the bucket retraction angle for more efficient excavation.

1. Excavator High Reach Demolition Boom Arm

✅Seamless precision steel pipe

✅Centralized lubrication system

✅The boom seat sleeve adopts all in one molding process

✅Hydraulic pipelines section design, convenient for later maintenance

2. Excavator Pile Driving Boom Arm

✅ The angle between boom and horizon can reach 88°

✅The angle between boom and arm can reach 160°

✅Comparing with the same length pile driving arm, ours can pile higher.

3. Excavator Shorten Arm

✅Stop valves prevent oil leakage when replacing breaker by bucket.

✅Multi-layer welding of pipe connectors to reduce the risk of oil leakage

✅Cylinder protective cover is beneficial to preventing the cylinder from being damaged in collision

✅Q355B material, using high-quality accessories, full weld, double plate reinforcement in the stress position, etc.

4. Excavator Sliding Arm

✅Built-in antiwear plastic slider for easy replacement and maintenance

✅The double oil seal design for the telescopic cylinder prolongs its service life

✅The whole plate is cut, not spliced, so as to be more firm and not easy to deform

✅Steel sliders are welded between the skateboards to avoid direct contact wear

6. EXCAVATOR LONG REACH

✅The pipeline we use is international seamless precision pipeline.

✅The bushing on the boom base we use graphite alloy copper sleeve ,and other place we use steel bushing for easy maintenance

✅Chamfering bevel before welding, our muti-layer welding is full and smooth with many year professional experence .

✅Rivers cleaning dregging project

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 5 experienced technical staff, 35 welding workers with over 7 years of experience.

Our annual output of various types of excavator boom arms can reach 600 sets. 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.

Usually use 40GP container to load product !

Why is the telescopic arm different from the shell bucket and the grab bucket?
A:Generally silt and sand working conditions, shell bucket is easy to use, the amount of digging is also large, and the efficiency is higher. However, in the general working condition of sand and stone, the efficiency of the shell bucket will be reduced due to the lack of digging force and the limitation of opening. The grab is more suitable for this condition. However, because the overall weight of the grab is relatively heavy, the square amount of the grab is generally smaller than the shell bucket, but in the condition of more stones, the advantage of the grab is more obvious.

Is it better to use single cylinder or double cylinder for shell bucket configured with telescopic arm?
A: The nitrogen cylinder needs to be filled with nitrogen, why choose nitrogen? The first nitrogen is an inert gas, inactive; Second nitrogen, why can you install a longer telescopic arm if you install a nitrogen cylinder? The telescopic arm is relatively heavy, and the downward pressure of the telescopic arm depends on gravity, and the power support of the excavator is not required. The problem occurs when lifting the big arm, the weight of the telescopic arm during load far exceeds the weight of the original arm load, exceeds the ultimate load capacity of the big arm cylinder, and can not lift the big arm, or the phenomenon of slow lifting. In the face of this phenomenon, there are two solutions, the first is to increase the oil cylinder, the second method is to install a nitrogen cylinder. Enlarging the cylinder will not only cause the cylinder to meet the big arm, but also prone to a series of failure problems of high engine water temperature.
The second method is to install a nitrogen cylinder, the downpressure of the telescopic arm is enough, the lifting capacity is not enough, the principle of the nitrogen cylinder is to always give the big arm an upward lifting force, which increases the lifting force, while reducing the load of the engine, and fuel saving

Contact sophia to inquiry details !