Hot sale 37-39 ton 20m long boom excavator nice quality excavator long reach boom arm for Hitachi Komatsu Sany

Catalogue ZH excavator boom arm.pdf

The Material of Configuration

We can customized different size of long reach front for Excavator Model

1. Long Reach Booms are made of high strength and high Tensile alloy steel Q355B, and better material (700Mpa Yield Strength) is optional
2. Inside of Booms with we design baffle plates that make booms strong and durable to withstand torsional loads
3. Our boom and arm are large-welded box structure and thick or multi-plates for high-stress areas.
4. High quality accessories such as pipeline, pins, bushes and cylinders,
5. Camera pre-installed system can be furnished on your request
6. Lock Valve is optional as a security tool to prevent boom down in the event of hydraulic hose blows

Various of Attachment to fit long reach booms: standard digging bucket, mud bucket, skeleton bucket, grapple.

Parameters of 20 meters Excavator Long Reach Boom

Long boom arm of excavator's strong points

* High quality with Q355 main material, experienced welding worker and professional R&D team
* Suitable for market brands, or customization
* Max work radius and digging depth & height are larger as 163 degrees of boom and arm angle

Working situation of excavator long boom

municipal engineering, subway building, sand mining, river cleaning and other water conservancy projects.

Attentions

We recommend you use the original arm cylinder to save cost, and counterweight is optional.
Please tell us if you need any other accessaries.

1 boom, 1 arm, 0.6cbm bucket, 20 ton Cylinder, 5 butter hoses, 6 precision seamless steel pipes,
1 linkage assembly, 4 high pressure hoses, 6 pins. All of them are installed together with boom arm.

Notice: Need to use the original arm/stick cylinder, which can reduce the cost for you.
We can also provide one but not for free if needed.

GOOD SERVICE:

1. Online support within 24 hours.

2. Appointment video technical support. 

   (Our engineers have focused on excavator boom and attachment over 10 years)

3. Long excavator boom shall be two/three jointed pcs to make it fittable into container to save shipping cost.

WARRANTY

1 year for long reach boom, 180 days for cylinder and linkage, 90 days for bucket.

1. Long reach excavator boom

2. Excavator telescopic boom

3. Demolition boom

4. Excavator rock bucket

5. Excavator tilting bucket

6. Hydraulic grabs for excavators

Q1: Why not have boom and stick cylinders in the plan?
A1: First, the whole long arm is lengthening, but the boom just lengthening from its middel sleeve to its end, so the original boom and stick cylinder can be used. Second, using the original parts can save your cost.

Q2: How long is the boom arm can min excavator be be configured with? Whether it is necessary to increase the counterweight?
A2. Generally speaking, 30-40 excavator longest arm suggests to be 8 meters, can configure 0.1 cbm bucket, no need extra counterweight. 55 excavator longest arm suggests to be 12 meters, can configure 0.1-0.15 cbm bucket, need 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 longest length as min excavator is easy to sloshing.

​