company news about Expert Opinion: Introduction to the Length of Excavator Sliding Arm

I am Kyra,we are Kaiping Zhonghe Machinery Manufacturing Co., Ltd, main products are: excavator long boom long arm and bucket etc.
We produce and develop excavator arms and attachments buckets, etc.
We customize excavator arms and attachments according to your excavator model.
For example, the conventional 200 excavator model has a 9-meter sliding arm, which refers to the ability to excavate up to 8 meters or nearly 9 meters without the upper arm being pressed down, known as the 9-meter sliding arm.
The 10 meter sliding arm refers to a maximum excavation depth of 10 meters, not the actual length of the arm.
The maximum excavation depth includes the height of the digging bucket.
The length of the 9-meter sliding arm extended and retracted by a 20 ton excavator will not exceed 9 meters.
Excavator with a sliding arm of 200 meters and a standard configuration of 0.5cbm excavator bucket. If you need to increase the size by 0.6-0.8cbm, customization is also possible, but additional weight is required. A 0.6cbm bucket requires an additional 500 kilograms of weight, while a 0.8cbm bucket requires an additional 1.5 tons of weight.
The 200 excavator can make a 12 meter sliding arm, but it is not recommended.
The excavator arm is relatively heavy, and the machine load is relatively high.
Like telescopic arms, it is related to the length of the boom.
Without changing the boom, the 9-meter sliding arm has better operational efficiency.
A 200 excavator can do it, but more counterweights need to be added.
The standard boom is fixed, so the extension of the telescopic length is necessary.
The only option is to extend the tail of the sliding arm by 2 meters, which would require an additional 2 meters at the end of the arm. This would result in a top heavy structure and inconvenience during work.

The weight of the 9-meter sliding arm is 2.2 tons, and the weight with the digging bucket is 2.6 tons.
The sliding arm carries a standard excavator bucket without the need for additional counterweights.
The excavator's sliding arm will not exceed the height limit, and the standard arm will be transported in the same way as the sliding arm.
It is recommended to install a 12 meter sliding arm on models with a tonnage of over 25 tons. The larger the model, the longer the length of the boom, and the tail of the sliding arm does not need to be extended.
It is not recommended to use a bucket with a sliding arm that exceeds 1cbm for large models. If the bucket is too large and the sliding arm is retracted and lowered, the side of the bucket may touch the driver's cab.
Excavator sliding arms are mainly used for digging municipal engineering projects such as sinking wells, foundation pits, tunnels, and sewage pipelines.

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