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Dongguan Haide Machinery Co., Ltd
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Hitachi Ex1200 Heavy-Duty Long Reach Attachments Boom and Arm for Breakwater Construction

Product Details

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Minimum Order Quantity: 1

Price: 35000

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Specifications
Highlight:

Hitachi Ex1200 long reach boom

,

heavy-duty excavator long arm

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breakwater construction long reach attachment

Excavator Tonnage:
20-50 Ton
Total Length:
16000-24000 Mm
Max Digging Radius:
15600-23500 Mm
Max Digging Depth:
10800-16410 Mm
Max Vertical Depth:
9800-15520 Mm
Max Digging Height:
11800-17170 Mm
Max Unloading Height:
10800-15630 Mm
Min Rotating Radius:
4720-7740 Mm
Boom Length:
8800-13000 Mm
Arm Length:
7200-11000 Mm
Bucket Size:
0.5-1.0 M³
Arm Dig Force:
64-167 KN
Bucket Dig Force:
99-151 KN
Bucket Rotating Degree:
170°
Folding Length:
12600-17960 Mm
Excavator Tonnage:
20-50 Ton
Total Length:
16000-24000 Mm
Max Digging Radius:
15600-23500 Mm
Max Digging Depth:
10800-16410 Mm
Max Vertical Depth:
9800-15520 Mm
Max Digging Height:
11800-17170 Mm
Max Unloading Height:
10800-15630 Mm
Min Rotating Radius:
4720-7740 Mm
Boom Length:
8800-13000 Mm
Arm Length:
7200-11000 Mm
Bucket Size:
0.5-1.0 M³
Arm Dig Force:
64-167 KN
Bucket Dig Force:
99-151 KN
Bucket Rotating Degree:
170°
Folding Length:
12600-17960 Mm
Description
Hitachi Ex1200 Heavy-Duty Long Reach Attachments Boom and Arm for Breakwater Construction
Hitachi EX1200 Long Reach Boom & Arm for Breakwater Construction

Our heavy-duty excavator long reach booms and arms are engineered for demanding marine and civil works, including river dredging, port and breakwater construction, railway projects, and groundworks. They deliver extended operating reach, high working efficiency, and reliable safety performance on large-scale job sites.

Hitachi EX1200 excavator equipped with heavy-duty long reach boom and arm for breakwater construction
Long reach excavator boom and arm assembly shown in working position
Close-up view of excavator long reach boom structure and hydraulic piping
Technical Specifications
Parameter Unit 20–25 Ton 20–25 Ton 30–36 Ton 30–36 Ton 40–50 Ton 40–50 Ton 40–50 Ton
Total Length mm 16000 18000 18000 20000 22000 20000 22000 24000
Max Digging Radius (A) mm 15600 17600 17500 19500 21500 19500 21500 23500
Max Digging Depth (B) mm 10800 12600 12100 14000 15410 14000 15410 16410
Max Vertical Digging Depth (C) mm 9800 11600 11200 13100 15520 13100 14520 15520
Max Digging Height (D) mm 11800 15600 15300 16600 17170 15600 16170 17170
Max Unloading Height (E) mm 10800 12200 12200 13500 14800 13700 14920 15630
Min Rotating Radius (F) mm 4720 5100 5100 6200 6200 6200 7740 7740
Boom Length mm 8800 9900 10000 11000 12000 11000 12000 13000
Arm / Stick Length mm 7200 8100 8000 9000 10000 9000 10000 11000
Bucket Size m³ 0.5 0.5 0.65–0.8 0.5–0.65 0.5–0.65 1.0 0.8 0.65
Arm Max Dig Force (ISO) kN 82 64 115 94 78 167 138 109
Bucket Max Dig Force (ISO) kN 151 99 151 151 151 151 151 151
Bucket Rotating Degree ° 170 170 170 170 170 170 170 170
Folding Length (G) mm 12600 14300 14300 15300 16960 15300 16960 17960
Folding Height (H) mm 3340 3480 3545 3570 3670 3670 3670 3670
Extra Counterweight Ton 0 2 0 2.5 5 2 3 3.5
Long reach boom and arm specification diagram showing digging radius, depth, height and folding dimensions
Standard Configuration of the Long Reach Boom
Standard configuration components of excavator long reach boom and arm set
  • 1 × suitable long boom and 1 × suitable long arm.
  • 1 × suitable bucket (digging bucket or cleaning bucket).
  • 4 × metal pipes and hoses, 8 × pins, 1 set of H-linkages, and 1 set of lubricating pipes.
  • 1 × bucket cylinder.
  • The arm can reuse the existing original arm cylinder; a new arm cylinder is also available on request.
  • The two boom cylinders reuse the existing original boom cylinders.
  • Extra counterweight can be supplied to balance the machine.
  • Extra hydraulic pipelines can be supplied for rock breakers or other hydraulic attachments.
Strong Welding & Manufacturing Process
45-degree beveling of steel plates before welding on long reach boom
Robotic welding machine performing main welding on excavator long boom
Even and solid weld seam on heavy-duty long reach excavator boom

Beveling: All steel plates are 45° beveled by beveling machine before welding.

Robotic Welding: Main welding is performed by robotic welding machines, producing solid, durable, and even weld seams.

Weld Area: Controlled weld quality ensures structural integrity under heavy-duty working conditions.

Boring After Welding & Pipe Welding
30-meter boring machine processing pin holes after welding on long reach boom
Robotic welding of metal hydraulic pipes on excavator long reach arm

Boring After Welding: A 30 m boring machine is used to process larger-diameter pin holes after welding, achieving micrometer-level accuracy and ensuring both pin centers remain in one line.

Metal Pipe Welding: Metal pipes are welded by robotic welding, which effectively prevents oil leakage compared with manual welding.

Reliable Components
Customized hydraulic cylinder for excavator long reach boom
Hardened and tempered pins used in long reach boom assembly
EATON high-pressure hydraulic hoses for long reach excavator
  • Hydraulic Cylinder: Customized from the S-ANY factory for reliable performance.
  • Pins: Made of 40Cr material, hardened above 55 HRC, tempered for toughness, and ground for precision — greatly extending the service life of the long boom.
  • Hydraulic Hoses: All high-pressure hoses use the American EATON brand.
Painting & Color Matching
KANSAI paint finish on excavator long reach boom matching original machine color

We use Japan KANSAI paint, the same supplier used by excavator manufacturers such as Hitachi and Kobelco. This ensures the color matches the original machine 100% and delivers a durable, professional finish.

Exhibition
2018 Shanghai Bauma Exhibition booth W3-628 showing long reach excavator attachments
2024 Shanghai Bauma Exhibition booth W2-100 showing long reach boom and arm products
  • 2018 Shanghai Bauma Exhibition — Booth No.: W3-628
  • 2024 Shanghai Bauma Exhibition — Booth No.: W2-100
After-Sales Service & Warranty

Standard Warranty: 12 months after installation.

Steel Structure

Please provide photos or videos of the failure to prove that the defect arises from our material or workmanship rather than improper operation. If confirmed as a material or workmanship defect, we will direct you on how to remedy the failure, and you may charge us for the remedy expense. Please note that you must follow our directions when performing the remedy; otherwise, we will not take any responsibility.

Accessories (Cylinder / Pipes / Hoses / Pins)

Please also provide photos or videos to prove that the defect arises from our material or workmanship rather than improper operation. If confirmed as a material or workmanship defect, we will send you replacement parts free of charge.

Product Video

Video demonstration of the long reach boom and arm in breakwater construction applications.

Send your inquiry
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