| Min. Order: | 1 Set/Sets |
|---|---|
| Trade Term: | FOB,CFR,CIF,DAT |
| Payment Terms: | Paypal, T/T, WU |
| Place of Origin: | Anhui, China (Mainland) |
| Means of Transport: | Ocean, Land |
| Delivery Date: | within 45 days after... |
| Brand Name: | HEKING |
| Operating Weight: | 36,000 kg heavy-duty wetland excavation platform | Maximum Digging Reach: | 15.4 m long reach working range |
|---|---|---|---|
| Maximum Digging Depth: | 10.8 m deep excavation capability | Bucket Capacity: | 0.5 m³ standard dredging bucket |
| Engine Configuration: | Mitsubishi 4M50-TLC3J turbocharged diesel engine | Hydraulic System: | Doosan T5V112 variable plunger pump |
| Travel Drive System: | Four DOOSAN TM40VC travel motors | Pontoon Structure: | Q345B steel amphibious undercarriage |
| Working Pressure: | 32 MPa hydraulic operating pressure | Optional Equipment: | Additional pontoon and spud for deep-water applications |
The HK300SDA Wetland Excavator is a specialized long reach amphibious excavator developed for contractors working in wetlands, marshlands, riverbanks, coastal zones, flood control projects, environmental restoration sites, and soft ground construction environments.
Unlike conventional crawler excavators that can easily become trapped in unstable terrain, the HK300SDA utilizes a high-buoyancy amphibious undercarriage combined with a reinforced pontoon system to maintain stability and productivity in areas with low bearing capacity. The machine is specifically designed for operators who require extended reach and enhanced flotation for difficult working conditions.
Featuring a 15.4-meter maximum digging reach and a digging depth exceeding 10 meters, this Wetland Construction Excavator allows contractors to complete dredging, excavation, channel maintenance, and restoration work from safer operating positions while minimizing environmental disturbance.
One of the key advantages of the HK300SDA Marshland Excavator is its extended working range.
The machine incorporates an 8.6-meter boom and a 6.26-meter arm, providing significantly greater reach than standard amphibious excavators. This configuration enables operators to access difficult locations without frequently repositioning the machine.
Benefits include:
Increased excavation coverage
Reduced machine movement
Lower fuel consumption
Improved project efficiency
Safer operation in unstable terrain
Reduced environmental impact
The long reach design makes the machine especially suitable for river dredging, lake maintenance, canal cleaning, wetland rehabilitation, and coastal engineering projects.
The HK300SDA is equipped with a reinforced amphibious undercarriage designed for challenging working environments.
Key undercarriage features include:
Four travel motors for enhanced traction
Strengthened track shoes
Reinforced chain system using 40Cr rollers
Q345B high-strength steel construction
Large buoyancy pontoons
Thickened hull structure
Pontoon construction specifications:
Top plate thickness: 6 mm
Side plate thickness: 6 mm
Bottom plate thickness: 8 mm
This design delivers excellent flotation performance while maintaining durability during long-term operation in abrasive mud, marshes, and shallow water conditions.
The HK300SDA Wetland Construction Excavator is powered by a Mitsubishi 4M50-TLC3J turbocharged diesel engine producing 118 kW at 2000 rpm.
The hydraulic system combines:
Doosan T5V112 variable plunger pump
PARKER AV280 control valve
Eaton swing motor
DOOSAN travel motors
This configuration provides:
Smooth operation
Precise control
Fast response
Reliable digging force
Reduced maintenance requirements
The machine delivers a bucket digging force of 122.85 kN and arm digging force of 97.64 kN, ensuring effective excavation even in compacted sediment and dense wetland materials.
The HK300SDA is widely used in:
Environmental agencies and contractors use the machine to restore wetlands while minimizing ground disturbance.
Ideal for removing sediment, deepening channels, and maintaining waterway capacity.
Supports shoreline stabilization, coastal protection, and marine infrastructure development.
Effective for levee maintenance, drainage improvements, and flood prevention construction.
Provides reliable access and excavation capability in marshes and low-bearing-capacity terrain.
Suitable for pipeline installation and maintenance through wetlands and environmentally sensitive areas.
The HK300SDA is manufactured by HEKING under strict quality control procedures.
Production advantages include:
ISO9001 certified quality management
CE certified wetland excavator solutions
Professional amphibious excavator manufacturing experience
Export support for Europe and Middle East markets
Spare parts availability
Technical support services
Production lead time is typically within 45 days after receipt of down payment.
Payment terms:
30% T/T down payment
70% balance before shipment
15.4m long reach working capability
Four travel motors for superior mobility
High buoyancy amphibious pontoon system
Deep excavation capability up to 10.8m
Reinforced Q345B steel undercarriage
Reliable Mitsubishi turbocharged engine
Powerful Doosan hydraulic pump system
Suitable for deep marsh and wetland projects
Optional spud and extra pontoon for deep water
| Item | Specification |
| Model | HK300SDA |
| Total Weight | 36,000 kg |
| Bucket Capacity | 0.5 m³ |
| Boom Length | 8,600 mm |
| Arm Length | 6,260 mm |
| Chain Strands Per Side | 3 |
| Item | Specification |
| Engine Model | Mitsubishi 4M50-TLC3J |
| Type | Inter-cooled Turbo |
| Power | 118 kW / 2000 rpm |
| Max Torque | 620 N.m / 1500 rpm |
| Cylinders | 4 |
| Displacement | 4.899 L |
| Item | Specification |
| Pump Type | Variable Plunger |
| Pump Model | Doosan T5V112 |
| Max Displacement | 2×112 cm³/r |
| Max Flow | 20 L/min |
| Working Pressure | 32 MPa |
| Valve | PARKER AV280 |
| Item | Specification |
| Travel Motor | DOOSAN TM40VC |
| Travel Motor Quantity | 4 |
| Slew Speed | 11 rpm |
| Travel Speed | 3.3 / 2.17 km/h |
| Gradeability | 0.7 |
| Tractive Effort | 382.4 kN |
| Bucket Digging Force | 122.85 kN |
| Arm Digging Force | 97.64 kN |
| Ground Pressure | 0.14 kg/cm² |
| Item | Specification |
| Fuel Tank | 376 L |
| Hydraulic Tank | 219 L |
| Item | Specification |
| Overall Length | 14,330 mm |
| Overall Width | 4,719 / 5,519 mm |
| Overall Height | 3,759 mm |
| Pontoon Length | 9,632 mm |
| Pontoon Width | 1,620 mm |
| Pontoon Height | 2,050 mm |
| Ground Clearance | 1,126 mm |
| Track Gauge | 3,725 mm |
| Item | Specification |
| Max Digging Reach | 15,426 mm |
| Reach on Ground | 15,203 mm |
| Max Digging Depth | 10,858 mm |
| Vertical Digging Depth | 10,420 mm |
| Max Digging Height | 14,101 mm |
| Max Dumping Height | 11,889 mm |
| Min Front Swing Radius | 4,884 mm |
A: The machine is designed for wetland restoration, river dredging, marshland construction, coastal engineering, and flood control projects.
A: Its amphibious pontoon undercarriage provides large buoyancy and low ground pressure, allowing safe operation on unstable terrain.
A: The HK300SDA provides a maximum digging reach of 15.4 meters.
A: Yes. Additional pontoons and spuds are available for deep-water applications.
A: The HK300SDA is equipped with four DOOSAN TM40VC travel motors.
A: The machine uses a Mitsubishi 4M50-TLC3J turbocharged diesel engine.
A: Production is normally completed within 45 days after receiving the down payment.
A: Payment terms are 30% T/T deposit and 70% balance before shipment.
A: Yes. The machine is designed for international export markets and can support demanding wetland and dredging applications.
A: Yes. Optional pontoons, spuds, buckets and project-specific configurations are available.
