| Min. Order: | 1 Set/Sets |
|---|---|
| Trade Term: | FOB,CFR,CIF |
| Payment Terms: | L/C, D/P, D/A, T/T |
| Place of Origin: | Anhui, China (Mainland) |
| Means of Transport: | Ocean, Land |
| Delivery Date: | Within 50 days after... |
| Brand Name: | HEKING |
| Product Type: | Wetland / amphibious excavator | Model: | HK400SD |
|---|---|---|---|
| Operating Weight: | 40,000 kg | Standard Bucket Capacity: | 1.3 m³ |
| Max. Digging Reach: | 12.049 m in the detailed standard specification; product information also lists 18.7 m / 12.05 m by configuration | Engine Options: | Cummins QSB6.7 / Cummins C8.3 / Isuzu 6HK1 |
| Hydraulic Pump: | Kawasaki T5V140DT | Ground Pressure: | 0.14 kg/cm² |
| Pontoon Length: | 11,400 mm | Optional Configuration: | Additional pontoon and spud for deep-water applications |
The HEKING HK400SD is a 40-ton wetland excavator developed for heavy excavation and dredging work where conventional crawler excavators may not be suitable for the ground conditions. Its amphibious undercarriage combines a large working platform with pontoons and three chains to support operation in wetland and soft-ground environments.
The machine is intended for professional contractors, engineering companies, project owners, distributors, and equipment procurement teams working on wetland construction, dredging, environmental engineering, marsh excavation, and water-access projects.
With a listed operating weight of 40,000 kg and a standard bucket capacity of 1.3 m³, the HK400SD is positioned within HEKING's heavy-duty amphibious excavator range. Its hydraulic system uses a Kawasaki T5V140DT pump, while the travel system uses four DOOSAN TM40VC travel motors. Engine configurations are available with Cummins QSB6.7, Cummins C8.3, or Isuzu 6HK1 engines.
For projects requiring additional water access capability, the HK400SD can be supplied with an additional pontoon and spud configuration for deep-water applications, subject to the project configuration.

The HK400SD uses an amphibious pontoon-based undercarriage designed for working conditions involving soft ground and water-access areas. The listed ground pressure is 0.14 kg/cm², providing a low-ground-pressure configuration for the intended wetland operating environment.
With a listed weight of 40,000 kg and a standard 1.3 m³ bucket, the HK400SD provides a large excavation platform for projects requiring a heavier machine class.
The product specification lists three engine options:
Cummins QSB6.7
Cummins C8.3
Isuzu 6HK1
The listed engine configuration is an inter-cooled turbo system with six cylinders and a 7.79 L displacement for the specified engine data.
The HK400SD uses a variable plunger pump with a maximum displacement of 2 × 140 cm³/r and a maximum flow of 2 × 308 L/min in the supplied specifications. Working pressure is listed as 32 MPa / 34.3 MPa.
The machine is equipped with four DOOSAN TM40VC travel motors. The detailed specification lists high/low travel speeds of 2.1 / 1.2 km/h and a tractive effort of 4 × 116 kN.
Additional pontoon and spud systems are listed as optional equipment for deep-water applications. This configuration should be confirmed according to the project's water depth, working method, and operating requirements.

The HK400SD combines a heavy excavator upper structure with an amphibious working platform. The detailed specification lists an 11,400 mm pontoon length, 1,800 mm pontoon width, and 2,090 mm ground clearance of the platform.
The upper structure has a listed width of 2,950 mm, while the overall machine width is 5,500 mm in the detailed configuration. The minimum ground clearance is listed as 1,228 mm and the pontoon height as 1,913 mm.
The hydraulic system is configured around a Kawasaki T5V140DT pump. Valve options include Toshiba UK32, Kawasaki KMX15RA, and B45030A. The swing system uses a fixed-plunger motor, while the travel system uses variable-plunger motors.
For excavation performance, the supplied specification lists:
Maximum digging force of bucket: 135 kN
Maximum digging force of arm: 123.8 kN
Maximum digging depth: 7,396 mm
Maximum vertical digging depth: 6,733 mm
Maximum digging height: 12,127 mm
Maximum dumping height: 9,018 mm
Maximum digging reach: 12,049 mm
Maximum digging reach on ground: 11,687 mm
Minimum front slewing radius: 3,848 mm
These figures should be evaluated together with the selected boom, arm, bucket, and overall project configuration.
The HK400SD is intended for projects where excavation equipment must operate across soft or water-affected terrain.
Wetland Construction: Used for excavation and construction activities in wetland environments where conventional equipment may encounter difficult ground conditions.
River and Waterway Dredging: Suitable for excavation and dredging-related work where equipment needs to access riverbanks, shallow-water areas, or soft waterway terrain.
Marsh and Swamp Operations: The amphibious platform is designed for applications involving marshes, swamps, and other soft-ground environments.
Environmental Engineering: Applicable to environmental restoration and related engineering projects requiring excavation equipment in wet or low-bearing-capacity areas.
Deep-Water Projects: Additional pontoon and spud options are available for deep-water applications, with the final configuration determined according to project requirements.
The HK400SD should be selected according to the actual site conditions rather than machine tonnage alone. Before procurement, buyers should provide information about the operating environment, excavation depth, required reach, water conditions, access conditions, attachment requirements, and expected working method.
Particular attention should be given to whether the standard configuration is sufficient or whether additional pontoon and spud equipment is required. The supplied product information lists an 18.7 m / 12.05 m digging-reach range by configuration, while the detailed specification provides 12,049 mm as the maximum digging reach. Buyers should therefore confirm the required boom and arm configuration with HEKING before quotation and production.
For dredging or environmental projects, the selected bucket and any other attachment should also be matched to the material being excavated and the intended working method.
| Item | Specification |
| Brand | HEKING |
| Model | HK400SD |
| Product Type | Wetland / amphibious excavator |
| Weight | 40,000 kg |
| Standard Bucket Capacity | 1.3 m³ |
| Boom Length | 6,733 mm |
| Arm Length | 4,520 mm |
| Chains | 3 |
| Engine Model | Cummins QSB6.7 / Cummins C8.3 / Isuzu 6HK1 |
| Engine Type | Inter-cooled turbo |
| Engine Power | 183.9 kW / 2,200 rpm |
| Max. Engine Torque | 949 N·m / 1,500 rpm |
| Number of Cylinders | 6 |
| Displacement | 7.79 L |
| Hydraulic Pump Type | Variable plunger pump |
| Max. Pump Displacement | 2 × 140 cm³/r |
| Max. Flow | 2 × 308 L/min |
| Working Pressure | 32 MPa / 34.3 MPa |
| Swing Motor | Fixed plunger |
| Travel Motor | Variable plunger |
| Swing Speed | 9 rpm |
| Max. Travel Speed, High / Low | 2.1 / 1.2 km/h |
| Gradeability | 70% |
| Tractive Effort | 4 × 116 kN |
| Max. Bucket Digging Force | 135 kN |
| Max. Arm Digging Force | 123.8 kN |
| Ground Pressure | 0.14 kg/cm² |
| Fuel Tank Capacity | 560 L |
| Hydraulic Tank Capacity | 250 L |
| Pontoon Length | 11,400 mm |
| Pontoon Width | 1,800 mm |
| Platform Ground Clearance | 2,090 mm |
| Overall Height | 4,144 mm |
| Boom Transport Height | 3,650 mm |
| Overall Length | 12,137 mm |
| Overall Width | 5,500 mm |
| Rear Swing Radius | 3,140 mm |
| Track Gauge | 3,523 mm |
| Minimum Ground Clearance | 1,228 mm |
| Pontoon Height | 1,913 mm |
| Upper Structure Width | 2,950 mm |
| Ground Length | 7,642 mm |
| Max. Digging Reach | 12,049 mm |
| Max. Digging Reach on Ground | 11,687 mm |
| Max. Digging Depth | 7,396 mm |
| Max. Vertical Digging Depth | 6,733 mm |
| Max. Digging Height | 12,127 mm |
| Max. Dumping Height | 9,018 mm |
| Min. Front Slewing Radius | 3,848 mm |
| Pump | Kawasaki T5V140DT |
| Valve | Toshiba UK32 / Kawasaki KMX15RA / B45030A |
| Swing Motor Model | Korea SUNJIN DS180021-01 |
| Travel Motor | DOOSAN TM40VC |
| Travel Motor Quantity | 4 |
| Optional Equipment | Additional pontoon and spud for deep-water applications |
The amphibious platform and listed low ground pressure of 0.14 kg/cm² are configured for wetland and soft-ground operating conditions.
The 40,000 kg machine weight and 1.3 m³ standard bucket provide a heavy equipment configuration for larger wetland and dredging projects.
Buyers can specify Cummins QSB6.7, Cummins C8.3, or Isuzu 6HK1 engine configurations according to the applicable supply and project requirements.
The Kawasaki T5V140DT hydraulic pump and listed 32 MPa / 34.3 MPa working pressure form part of the machine's hydraulic configuration.
Additional pontoon and spud equipment is available as an optional configuration for projects requiring additional water-depth capability.
HEKING operates as a manufacturer with export markets covering Western Europe, Eastern Europe, Southeast Asia, Eastern Asia, Oceania, and Africa. The company provides factory-direct supply and international trade support for overseas buyers.
Before requesting a quotation for the HK400SD, professional buyers should confirm:
Required working environment, including wetland, marsh, soft ground, shallow water, or deeper water.
Required digging reach and digging depth.
Required bucket capacity and attachment configuration.
Whether the standard amphibious platform is suitable for the project.
Whether additional pontoons and spud equipment are required.
Required engine configuration.
Shipping and delivery requirements for the destination country.
Technical documentation required for project approval or procurement.
Payment and production requirements.
For projects with unusual water depth, reach, or access conditions, buyers should provide project parameters to HEKING so the appropriate configuration can be confirmed before order placement.
Anhui Hekuang Environmental Technology Co., Ltd. is a manufacturer specializing in amphibious equipment and construction machinery for wetland, water, and environmental engineering projects.
The company operates a production base covering more than 100,000 square meters and has 125 employees, including 42 technical specialists and 10 senior professional engineers. Its business scope includes amphibious excavators, amphibious pontoon systems, crawler excavators, material handling excavators, and amphibious carriers.
HEKING supplies customers across Western Europe, Eastern Europe, Southeast Asia, Eastern Asia, Oceania, and Africa. The company also provides engineering design and international trade support for overseas distributors, contractors, and project owners.
Quality certifications listed by the company include CE, ISO9001, and ISO14001.
Business Type: Manufacturer
Payment Term for HK400SD: T/T, 30% down payment and 70% paid before delivery.
Production Time: Within 50 days after receipt of down payment.
For quotation purposes, buyers should confirm the destination country, required configuration, engine option, attachment requirements, and whether additional pontoon or spud equipment is needed.
The HK400SD amphibious excavator can be transported by sea using customized steel frames and sectional assembly methods. HEKING provides export packaging solutions according to destination requirements.

HEKING amphibious excavators are manufactured under ISO9001 and ISO14001 quality management systems and supplied with CE certification according to applicable product

The HK400SD is a 40-ton wetland and amphibious excavator designed for wetland construction, soft-ground excavation, marsh and swamp operations, river dredging, and related environmental engineering applications.
The standard bucket capacity listed in the product specification is 1.3 m³.
The detailed product specification lists a maximum digging reach of 12,049 mm. The product information also lists 18.7 m / 12.05 m by configuration, so the required boom and arm configuration should be confirmed before ordering.
The supplied specifications list Cummins QSB6.7, Cummins C8.3, and Isuzu 6HK1 engine options.
Additional pontoon and spud equipment is listed as an optional configuration for deep-water applications. The appropriate configuration should be confirmed according to the actual project conditions.
The supplied specification lists a ground pressure of 0.14 kg/cm².
The stated production time is within 50 days after receipt of the down payment.
The product information specifies T/T with a 30% down payment and the remaining 70% paid before delivery.
If you are sourcing a 40-ton wetland excavator for a wetland, dredging, soft-ground, marsh, or water-access project, contact HEKING with your project requirements.
For a quotation or technical evaluation, provide:
Destination country
Application and project type
Required digging reach and depth
Working environment and water conditions
Required bucket or attachment
Preferred engine, if applicable
Requirement for additional pontoon or spud equipment
Quantity
Target delivery requirements
HEKING can then confirm the applicable HK400SD configuration, technical specifications, production schedule, and commercial terms for your project.
Category: Wetland Excavator