86- 138 5607 6003 •

20 Ton Swamp Excavator For Wetland And River Dredging Projects

20 Ton Swamp Excavator for Wetland and River Dredging Projects Admin Edit

Min. Order: 1 Set/Sets
Trade Term: FOB,CFR,CIF,DAT
Payment Terms: Paypal, L/C, T/T
Place of Origin: Anhui, China (Mainland)
Means of Transport: Ocean, Land
Delivery Date: within 20 days after...
Brand Name: HEKING
Operating Weight: 20,000 kg heavy-duty swamp excavator platform Maximum Digging Reach: 10,778 mm extended working radius
Maximum Digging Depth: 7,033 mm excavation capability Bucket Capacity: 0.4 m³ standard digging bucket
Engine Configuration: Mitsubishi 4D34 turbocharged diesel engine Engine Output: 70 kW at 2,200 rpm
Travel Drive System: Four DOOSAN TM22VC travel motors Hydraulic Pump Type: DOOSAN T5V63 variable plunger pump
Pontoon Structure: 9,258 mm high-buoyancy amphibious pontoon Undercarriage Option: Manual or hydraulic extendable undercarriage

Overview of the HK200SD Swamp Excavator

The HK200SD Swamp Excavator is a professional-grade swamp buggy excavator developed for operation in challenging environments where conventional crawler excavators cannot work efficiently. Designed specifically for wetlands, marshlands, riverbanks, ponds, lakes, coastal zones, and soft ground construction sites, the machine combines excellent flotation capability with powerful excavation performance.

With an operating weight of 20 tons and a reinforced amphibious pontoon undercarriage, the HK200SD provides outstanding stability across unstable terrain. Its large buoyancy design minimizes ground pressure while allowing operators to travel safely through waterlogged areas, muddy conditions, and environmentally sensitive project zones.

The machine is widely used in river dredging, wetland restoration, environmental rehabilitation, flood control projects, canal maintenance, shoreline stabilization, oil and gas access road construction, and infrastructure development in marsh environments.

For contractors seeking a reliable marsh excavator capable of maintaining productivity where traditional equipment becomes immobilized, the HK200SD provides a proven solution.

Designed for Wetlands, Marshes and Soft Ground Projects

Many construction projects take place in environments where ordinary excavators face severe mobility limitations. Wetlands, swamps, marshes, lagoons, estuaries, riverbanks, and shallow water areas require specialized equipment capable of floating and traveling over unstable terrain.

The HK200SD swamp buggy excavator utilizes large pontoons and a low ground pressure design of only 0.14 kg/cm². This enables the machine to move across soft surfaces while reducing environmental disturbance.

Typical applications include:

  • River dredging projects

  • Canal maintenance

  • Wetland restoration

  • Environmental protection projects

  • Flood control operations

  • Marshland infrastructure development

  • Coastal engineering projects

  • Pipeline installation access

  • Waterway construction

  • Sediment removal operations

Its maximum digging depth of 7.03 meters and dumping height of over 9 meters allow contractors to perform efficient excavation and material handling tasks in difficult working conditions.

High Performance Hydraulic System

The HK200SD is equipped with a DOOSAN T5V63 variable plunger hydraulic pump designed to provide smooth operation and strong digging performance.

Combined with the PARKER AV170 hydraulic valve system, operators benefit from responsive controls and precise movement. The hydraulic system delivers a working pressure of 30 MPa, supporting demanding excavation applications.

Performance highlights include:

  • Bucket digging force of 72.5 kN

  • Arm digging force of 51 kN

  • Slewing speed of 13.6 rpm

  • Maximum travel speed of 3 km/h

  • Gradeability up to 35°

These specifications allow the machine to maintain productivity even in difficult ground conditions.

Four-Motor Travel System for Superior Mobility

Unlike many standard amphibious excavators, the HK200SD incorporates four independent travel motors.

This configuration improves traction, stability, and maneuverability in soft terrain. The four-motor system distributes power more evenly across the pontoon structure, helping maintain movement through mud, marshes, and shallow water.

Benefits include:

  • Enhanced traction performance

  • Improved maneuverability

  • Better load distribution

  • Increased reliability

  • Reduced risk of sinking in soft ground

The strengthened track chains and reinforced track shoes further improve durability under harsh working conditions.

Large Buoyancy Pontoon Design

The amphibious pontoon system is one of the most critical components of a swamp excavator.

The HK200SD features large-dimension pontoons measuring over 9.2 meters in length. These pontoons generate substantial flotation while maintaining machine stability.

Key advantages include:

  • Excellent flotation capacity

  • Improved working stability

  • Reduced ground pressure

  • Safe operation in shallow water

  • Longer service life

For deep-water applications, customers may select optional side pontoons and spud systems to further enhance stability and working capability.

Built for International Contractors

The HK200SD is engineered to meet the requirements of professional contractors across Europe, the Middle East, Africa, Southeast Asia, and South America.

The machine incorporates internationally recognized components, including:

  • Mitsubishi diesel engine

  • DOOSAN hydraulic pump

  • PARKER hydraulic valve

  • DOOSAN travel motors

This component selection simplifies maintenance and parts sourcing while ensuring reliable operation throughout the machine's service life.

Production is completed within approximately 20 days after receipt of the down payment, helping contractors reduce project waiting times.

Payment terms:

  • 30% T/T advance payment

  • 70% balance before shipment

Product Advantages

  • Four independent travel motors for superior mobility

  • High-buoyancy amphibious pontoon design

  • Low ground pressure for soft terrain operation

  • 10.8-meter maximum digging reach

  • Reinforced track shoes and chain system

  • Reliable Mitsubishi turbocharged engine

  • International hydraulic components

  • Optional hydraulic extendable undercarriage

  • Deep-water pontoon and spud options available

Product Specifications

Basic Specifications

ItemSpecification
ModelHK200SD
Operating Weight20,000 kg
Bucket Capacity0.4 m³
Boom Length6,100 mm
Arm Length3,900 mm
Chain Strands2

Engine System

ItemSpecification
Engine ModelMitsubishi 4D34
Engine TypeInter-cooled Turbo
Rated Power70 kW / 2200 rpm
Maximum Torque370 N·m / 1600 rpm
Cylinders4
Displacement3.91 L

Hydraulic System

ItemSpecification
Pump TypeVariable Plunger Pump
Pump ModelDOOSAN T5V63
Max Displacement2 × 63 cm³/r
Working Pressure30 MPa
ValvePARKER AV170

Travel & Swing System

ItemSpecification
Swing MotorDOOSAN TSM86-GSG140SP
Travel MotorDOOSAN TM22VC
Travel Motors4 Units
Swing Speed13.6 rpm
Travel Speed High3 km/h
Travel Speed Low2.1 km/h

Excavation Performance

ItemSpecification
Max Digging Reach10,778 mm
Reach at Ground10,510 mm
Max Digging Depth7,033 mm
Vertical Digging Depth5,610 mm
Max Digging Height11,860 mm
Max Dumping Height9,057 mm

Pontoon Dimensions

ItemSpecification
Pontoon Length9,258 mm
Pontoon Width1,466 mm
Pontoon Height1,797 mm
Overall Width4,231 / 5,051 mm
Track Gauge2,598 / 3,398 mm

Amphibious Excavator Certifications

Amphibious Excavator Packaging & Shipping

Frequently Asked Questions

Q1: What is the primary application of the HK200SD swamp excavator?

A: The HK200SD is designed for wetland construction, river dredging, marsh excavation, flood control, and environmental restoration projects.

Q2: Can the machine operate in shallow water?

A: Yes. The high-buoyancy pontoon system allows operation in shallow water, wetlands, marshes, and soft ground conditions.

Q3: Why does the HK200SD use four travel motors?

A: Four travel motors improve traction, stability, maneuverability, and overall performance in difficult terrain.

Q4: Is a hydraulic extendable undercarriage available?

A: Yes. Customers can choose either a manual extendable undercarriage or an optional hydraulic extendable undercarriage.

Q5: Can the machine be configured for deep-water projects?

A: Yes. Additional pontoons and spud systems can be supplied for deep-water applications.

Q6: What engine powers the HK200SD?

A: The excavator uses a Mitsubishi 4D34 turbocharged diesel engine producing 70 kW.

Q7: What is the production lead time?

A: Production is normally completed within 20 days after receipt of the deposit.

Q8: What payment terms are available?

A: Payment terms are 30% T/T down payment and 70% balance before shipment.

Q9: Which regions commonly use this machine?

A: Europe, the Middle East, Africa, Southeast Asia, and South America are major markets for swamp and wetland excavation equipment.

Q10: What makes this machine different from a standard crawler excavator?

A: Its amphibious pontoon undercarriage enables operation in swamps, marshes, wetlands, and shallow water where conventional excavators cannot work effectively.



PRODUCT DETAIL HEKING HK300SDA Swamp Excavator

HEKING HK300SDA Swamp Excavator

PRODUCT DETAIL HEKING HK150SD Swamp Excavator

HEKING HK150SD Swamp Excavator

PRODUCT DETAIL HEKING HK400SD Swamp Excavator

HEKING HK400SD Swamp Excavator

PRODUCT DETAIL HEKING HK200SD Swamp Excavator

HEKING HK200SD Swamp Excavator

PRODUCT DETAIL 15 Ton Swamp Excavator for Wetland Construction

15 Ton Swamp Excavator for Wetland Construction

PRODUCT DETAIL 20 Ton Swamp Excavator for River Dredging

20 Ton Swamp Excavator for River Dredging

PRODUCT DETAIL 30 Ton Swamp Excavator for River Dredging Projects

30 Ton Swamp Excavator for River Dredging Projects

PRODUCT DETAIL 35 Ton Swamp Excavator for River Dredging and Wetland Projects

35 Ton Swamp Excavator for River Dredging and Wetland Projects

Category: swamp excavator

Related Category: amphibious excavator  wetland excavator