Dongguan Haide Machinery Co., Ltd

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20M Hyundai R330LC-7 Excavator Long Boom With 3 Ton Counterweight

20M Hyundai R330LC-7 Excavator Long Boom With 3 Ton Counterweight

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Large Image :  20M Hyundai R330LC-7 Excavator Long Boom With 3 Ton Counterweight Get Best Price

Product Details:
Place of Origin: China
Brand Name: Haide
Certification: CE/ISO
Model Number: LDB300
Payment & Shipping Terms:
Minimum Order Quantity: 1kit
Price: Negotiation(EXW,FOB or CIF price)
Packaging Details: Film
Delivery Time: Within 15 days after received deposit
Payment Terms: T/T, L/C
Supply Ability: 30 kits per month
Detailed Product Description
Excavator Model: Hyundai R330LC-7 Total Length: 20 Meters
Boom Length: 11 Meters Stick Length: 9 Meters
Counter Weight: 3ton Bucket Capacity: 0.6 Cum
Warranty: 6 Months After Goods Arrived Destination Port Condition: New
Moving Type: Crawler Excavator Material: Q345B+Q690D
High Light:

Hyundai R330LC-7 Excavator Long Boom


20M Excavator Long Boom


3 ton counterweight excavator extension arm

20M Long Boom For Hyundai R330LC-7 Excavator With 3ton Counterweight






1.This Long reach boom is for Hyundai R330LC-7 Excavator, length is 20M with 3 ton counterweight and 0.6m3 strengthen digging bucket.


2.Standard supply include:bucket, linkage, bucket cylinder, 4pcs steel pipes, 4pcs high-pressure hoses, 6pcs pins, lubricating system.


3.Q355B,Q690D steel material are optional to suit to your application. This long reach boom based on strengthen type. Top and bottom plate use Q690D material. Other plate use Q355B. And with extra harmmer pipes.


4.Warranty: 6 months start from the goods arrived destination port.


5.All the edge plate are beveled by beveling machine before welding, which make the welding is more stronger,even and solid.


6.Big boom can be two jointed because to make it fittable into container if long reach length exceed 24.5m.


7.Some parts can be consolidated using thicker plate or overlapping another plate for heavy-duty application.


8.Boom cylinder and arm cylinder can also be supplied if customer want.


9.Extra pipeline can be added to suit to some extra application.


10.Applicable for all brand excavator.


11.This long reach boom was exported to Qatar.


12.After-sales service with online support.





Certificate and Documents:


1.CE and ISO certificate are available.

2.Drawing and working range are available.

3.Pictures is available.




Packing and shipping:


1.We pack it by film at first, then secure it inside the container by fixing to the container wall through steel wire.

2.One container can load 3 complete sets(we use rack to hold the upper sets).

3.Production leadtime is 15 days for 1 set, 20 days for 3 sets.






Boom length 11000 mm
Arm length 9000 mm
Max extensive scope 19020 mm
Max dig depth 14000 mm
Max dig height 16600 mm
Max dig depth in vertical wall 13100 mm
Max unloading height 13500 mm
Min rotate radius 6200 mm
Bucket volume 0.6 m3
Counter weight 3.0 ton
Folding height 3570mm




Common Models:


Model LDB120 LDB200 LDB220 LDB300 LDB350 LDB400 LDB450

Total length


13000 15380 15380 18000 20000 22000 24000



3000 4000 4200 5200 6000 6500 7000

Max dig depth


9000 11340 11370 13000 15000 16500 18000

Max extensive

Scope (mm)

12500 15100 15100 17600 19600 21600 23600

Max dig height


11300 12510 12610 13720 14920 16100 17300

Folding height


2900 2980 3040 3210 3210 3400 3400

Bucket volume


0.3 0.4 0.4 0.4 0.5 0.6 0.6



12 20 22 30 35 40 45







20M Hyundai R330LC-7 Excavator Long Boom With 3 Ton Counterweight 0

20M Hyundai R330LC-7 Excavator Long Boom With 3 Ton Counterweight 1

Contact Details
Dongguan Haide Machinery Co., Ltd

Contact Person: Irene Guo

Tel: +8613532367107

Send your inquiry directly to us