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HK300SD Amphibious Excavator For Coastal Engineering

HK300SD Amphibious Excavator for Coastal Engineering Admin Edit

Min. Order: 1 Set/Sets
Trade Term: FOB,CFR,CIF,DAT
Payment Terms: Paypal, L/C, D/P, T/T
Place of Origin: Anhui, China (Mainland)
Means of Transport: Ocean, Land
Delivery Date: within 40 days after...
Brand Name: HEKING
Operating Weight:: 30,000 kg heavy-duty amphibious excavator platform Maximum Digging Reach: 10.1 m extended working radius for dredging projects
Bucket Capacity: 0.8-0.9 m³ standard excavation bucket configuration Engine System: Mitsubishi 4M50-TLC3J turbocharged diesel engine
Hydraulic Pump: Dual Doosan T5V112 variable plunger hydraulic pumps Pontoon Structure: 8.3 m high-buoyancy reinforced pontoons
Travel System: 2 DOOSAN TM60VC travel motors for swamp mobility Undercarriage Design: Triple-chain amphibious undercarriage structure
Ground Pressure: Low 0.14 kg/cm² ground pressure for soft terrain Optional Configuration: Additional pontoon and spud system for deep water

Professional Amphibious Excavator for Soft Terrain Operations

The HEKING HK300SD Amphibious Excavator is a professional heavy-duty excavating machine specially developed for wetland construction, river dredging, flood control projects, coastal engineering, and oil & gas pipeline installation in difficult soft-ground environments. Built with reinforced pontoons and a specialized amphibious undercarriage system, this amphibious excavator delivers excellent stability, flotation performance, and operational efficiency in marshes, swamps, muddy terrain, shallow water, and low-bearing-capacity ground conditions.

Designed for the Europe and Middle East construction and infrastructure markets, the HK300SD combines reliable hydraulic performance, strong structural durability, and efficient excavation capability. The machine is widely used by contractors, dredging companies, government engineering projects, and oil & gas infrastructure developers requiring dependable operation in challenging terrains where conventional excavators cannot work efficiently.

Heavy-Duty Amphibious Undercarriage Design

The HK300SD features a reinforced amphibious pontoon undercarriage system designed to provide superior buoyancy and operational stability. The large pontoons significantly reduce ground pressure to only 0.14 kg/cm², enabling the machine to travel smoothly across wetlands, swamp areas, soft clay, marshlands, and shallow water environments without sinking.

The machine adopts a triple-chain undercarriage structure for improved durability and better traction performance in muddy conditions. Reinforced track shoes and chains increase resistance to wear, corrosion, and deformation during continuous operation in abrasive environments.

Its wide overall operating width and stable pontoon structure help maintain machine balance during digging, lifting, and traveling operations, even under difficult site conditions.

Powerful Hydraulic System and Reliable Components

The HEKING HK300SD Amphibious Excavator is equipped with a Mitsubishi 4M50-TLC3J turbocharged diesel engine delivering stable power output for demanding excavation tasks. Combined with dual Doosan T5V112 variable plunger hydraulic pumps, the machine provides efficient hydraulic response, smooth operation, and strong digging force.

The PARKER AV280 hydraulic valve system ensures precise hydraulic control and high operational reliability, while the Eaton swing motor and DOOSAN travel motors improve machine maneuverability and working efficiency.

The advanced hydraulic configuration allows the excavator to perform efficiently in river dredging, canal maintenance, embankment reinforcement, and coastal infrastructure projects.

Ideal for River Dredging and Coastal Engineering

The HK300SD is widely used in river dredging and waterway maintenance projects where standard excavators cannot access. Its amphibious structure enables operators to perform excavation and sediment removal directly in shallow water or muddy areas.

For coastal engineering projects, the machine is suitable for shoreline reinforcement, tidal area maintenance, seawall construction, and marine infrastructure development. The excavator's stable flotation system and strong digging performance allow efficient operation in continuously wet environments.

The optional additional pontoon and spud system can further improve machine stability in deeper water applications.

Suitable for Oil & Gas Pipeline Construction

The HK300SD Amphibious Excavator is highly suitable for oil & gas pipeline installation projects crossing wetlands, marshes, and swamp regions. The machine can travel safely over unstable ground while maintaining reliable digging performance for trenching, backfilling, and material handling operations.

Its low ground pressure minimizes environmental impact and reduces terrain damage during pipeline construction projects, making it an effective solution for environmentally sensitive areas.

Engineered for Long Service Life

HEKING focuses on manufacturing durable amphibious excavators capable of long-term operation in harsh environments. The HK300SD uses high-strength steel materials, reinforced pontoons, and corrosion-resistant structural components to improve machine lifespan and reduce maintenance requirements.

The hydraulic and powertrain systems are selected from internationally recognized suppliers to ensure component availability and long-term reliability for overseas customers.

With simplified maintenance access and robust engineering, the HK300SD helps reduce downtime and operational costs for contractors and fleet owners.

Global Supply and Export Support

HEKING provides professional export support for customers across Europe, the Middle East, Southeast Asia, Africa, and South America. The HK300SD Amphibious Excavator is available with customized configurations based on project requirements.

Production time is typically within 40 days after receipt of down payment. Payment terms are T/T 30% down payment with 70% balance before delivery.

The company also provides technical support, spare parts assistance, and international logistics coordination for global buyers.

HK300SD Specification:↓

Weight30000kg
Standard bucket capacity0.8m³
Boom length5680
Arm length2912
Chain strands per side3
Engine modelMitsubishi 4M50-TLC3J
Typeinter-cooled turbo
Power118kW/2000rpm
Max.torque620N m / 1500rpm
No.of cylindar4
Displacement4.899L
TypeVariable plunger pump
Max.displacement 2X2800px3/r
Max.flow20L/min
Working pressure32Mpa
Slew motorfixed plunger
Travel motorvariable plunger
Slew speed11rpm
Min.slew radius3554mm
Max.travel speed  high/low3.3/2.17km/h
Gradeability0.7
Tracktive effort382.4kN
Max.digging force of bucket122.85kN
Max.digging force of arm97.64kN
Ground pressure0.14kg/cm2
Fuel tank capacity376L
Hydraulic tank capacity219L
Item
Length of pontoon8285
Ground clearance of platform1936
Overall height3759
Boom transport height3379
Overall length10747
Rear swing radius2800
Track gauge3950
Overall width5742
Width of pontoon1800
Min.ground clearance1126
Height of pontoon1700
Width of upper structure2622
Ground length5088
Item
Max.digging reach10186
Max.digging reach on ground10163
Max.digging depth3201
Max.vertical digging depth10163
Max.digging height7027
Max.dumping height6928
Min.front slewing radius6550
EngineMitsubishi 4M50-TLC3J
PumpDoosan T5V112
ValvePARKER AV280
Swing motorEaton 11020268501
Travel motorDOOSAN TM60VC
Travel motor no.2

Amphibious Excavator Certifications

Amphibious Excavator Packaging & Shipping

FAQ

Q1: What is the main application of the HK300SD Amphibious Excavator?
A: The HK300SD is mainly used for river dredging, wetland construction, flood control, coastal engineering, and oil & gas pipeline projects in swamp or soft-ground environments.

Q2: Can the HK300SD operate in deep water conditions?
A: Yes. The excavator can be equipped with optional additional pontoons and spud systems for improved stability in deeper water applications.

Q3: What engine is installed on the HK300SD?
A: The machine uses a Mitsubishi 4M50-TLC3J turbocharged diesel engine with stable power output and reliable fuel efficiency.

Q4: What is the bucket capacity of this amphibious excavator?
A: The standard bucket capacity is approximately 0.8–0.9 m³ depending on project requirements.

Q5: Is the excavator suitable for swamp and marsh operations?
A: Yes. The reinforced pontoon structure and low ground pressure make it highly suitable for swamp, marshland, and wetland operations.

Q6: What are the delivery terms for overseas buyers?
A: Production is completed within approximately 40 days after receipt of the 30% down payment. The remaining 70% balance is paid before shipment.

Q7: What hydraulic components are used in the machine?
A: The HK300SD uses Doosan hydraulic pumps, PARKER hydraulic valves, Eaton swing motors, and DOOSAN travel motors.

Q8: Can HEKING provide spare parts and technical support?
A: Yes. HEKING provides spare parts support, technical assistance, and export services for international customers.


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Category: amphibious excavator

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