High-Strength Excavator Two-Section Telescopic Arm For CAT311 SH200 DH300 CAT320

A two-section telescopic boom arm is a valuable piece of equipment widely utilized in industries such as construction, transportation, and forestry. Its versatility and compact design make it an indispensable tool for various applications.

In the forestry sector, the two-section telescopic boom arm proves to be an essential tool. It assists in various tasks such as tree felling, log stacking, and equipment maintenance. The equipment's extended reach and lifting capacity enable workers to handle large logs and navigate challenging terrain with ease. By utilizing the boom arm, forestry operations become more efficient, reducing manual labor and enhancing overall productivity.

Highlights of telescopic arm

1.The reel adopts enlarged spring piece✅

2. The box is made of LG700 high strength material✅

3. Bearing part with multi-layer reinforced✅

4. The pivot end is reinforced with multiple layers to withstand greater excavation forces✅

5. The exposed bucket cylinder can be replaced without disassembling arm, which is convenient for maintenance

6. Four-layer steel wire high pressure hose, more durable✅

7. The telescopic cylinder adopts double oil seals, and the built-in slider reduces the vibration of the cylinder, avoids sagging due to gravity, improves the service life of the cylinder and reduces failures✅

The two-stage telescopic boom is generally 6-16 meters, generally match 6-22 tons excavator. It is divided into two designs with and without pipe coiler. On the market with pipe coiler design one is the main supply products.

Zhonghe two-stage telescopic boom sales of more than 100 sets a year.

1. This product is mainly composed of a fixed body, a sliding body and an extendable cylinder.

2. The arm is made of high-strength 700 material.

3. Embedded hydraulic hoses can effectively prevent damage caused by obstacles.

4. It also has a load-extension function, which can work over some obstacles directly.

5. Generally, it carries a bucket to complete deep pit excavation as well as be matched with a clamshell bucket to grab soil, sand, coal. etc.

welcome to contact for more details and models!

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

ZHONGHE triple quality control system
The first system is the technical design drawing review mechanism,
The second system is the semi-finished product review mechanism,
(each process has a detection testing for the previous process)
The third system is the finished product testing.
(Before painting, the overall inspection is carried out to check whether the design size matches the welding size, and whether the installation size meets the design requirement.)

To sum up, every single ZHONGHE product has been passed the above three-stage inspection system to ensure that is qualified before shipping.

(Robust structure)
1. The box is made of LG700 high strength material
2. Bearing part with multi-layer reinforced

3. The upgraded auxiliary rope design makes the pipeline smoother while stretching

(Long service life)
1. The reel adopts enlarged spring piece
2. Adopt Strong bucket cylinder

(Avoid oil leakage)
1. The telescopic cylinder adopts double oil seals
2. Bucket cylinder hose was built-in to avoids oil leakage caused by hose vibration

(Easy to maintain)
Lubrication system for sliders help support butter easily.

Usually use 40GP container to load product !

Q1. What is the length of the telescopic boom? Is it the total length of the boom?
A1. The length of the two-stage telescopic boom refers to the excavation depth. For example, the 14m telescopic boom refers to the maximum excavation depth of 14m, not the boom length of 14m.

Q2. How to judge the length of telescopic boom that can be made for different models?
A2. Because the length of the telescopic boom is directly related to the length of the boom. We should ensure that the telescopic boom will not touch the bridge when it is placed on the ground.

Q3. Do I need to modify the original machine when installing the telescopic boom? Are there any precautions?
A3. The original machine needs three sets of pipes. We need to replace the original one-way foot switch with a two-way foot switch to achieve the telescopic function. The other operations are the same. The more important thing is balance and safety. Try to avoid the 90 degree operation between the cab and the track shoe.

Q4. Note and maintenance of telescopic arm
A4. 1st, telescopic arm does not allow inclined excavation. 2nd, it can't dig hard things but only soft soil. 3rd, it is not allowed to jack or hoist when the smallest arm is not fully retracted. 4th, the end can't lift things more than 1 ton, which are easy to bend the telescopic arm. If so, no warranty. 5th, telescopic boom shall be greased every day, and the boom barrel shall be greased at least once a week to keep the boom barrel full of butter.

Contact sophia to inquiry details !

My name is sophia from Zhonghe Machinery , our factory produce telescopic arm and different types of long arm , please contact me if you need
whatsapp/wechat:+86 18127591702
sophia@excavatorboomarm.com
Line~:supersophia1990
@excavatorrockbuckets.com