Catalog
Overview: 6X4 Dump Truck 371 Horsepower for Global Markets
INDUSTRIAL SPECIFICATION REPORT 2026
SEA LION INTERNATIONAL TRADE CO., LTD.
Authorized Distributor: SINOTRUK | SHACMAN | XCMG | Est. 2005
EXECUTIVE OVERVIEW: 6×4 DUMP TRUCK 371 HP (MODEL: HTD-371)
Core Application Profile
The SEA LION HTD-371 6×4 Dump Truck (371 HP) is engineered for high-volume material transport in extreme-duty cycles across mining, bulk logistics, and large-scale construction. Its optimized power-to-weight ratio, reinforced chassis, and simplified maintenance architecture deliver 15–22% higher productivity in fragmented terrain versus comparable 350–400 HP competitors. This model excels in:
– Open-pit mining: 32.5-tonne payload capacity with 5% gradeability at full load.
– Aggregate logistics: 18–22 m³ volumetric efficiency with rapid 18-sec hydraulic cycle time.
– Infrastructure construction: 3.8 m ground clearance for unprepared site access.
Technical Performance Benchmark (Operational Baseline: 80% Load, 35°C Ambient)
| Parameter | Specification | Industry Avg. (350–400 HP Class) | Advantage |
|---|---|---|---|
| Engine | WP10H371E62 (SINOTRUK) | Cummins ISL/Scania DC09 | +8% torque @ 1,000–1,400 RPM |
| Transmission | 10JSD160T-B (Fast Gear) | 9–12 Speed AMT | -22% clutch wear (field data) |
| Fuel Consumption | 32.5 L/100 km | 36.8 L/100 km | 11.7% TCO reduction |
| Axle Configuration | HC16 (Rear Tandem) | HC13/HC15 | 20% higher impact resistance |
| Service Interval | 15,000 km | 10,000–12,000 km | 25% lower maintenance downtime |
Regional Market Preference Drivers
Africa (Sub-Saharan Focus)
- Heat & Dust Resilience: Engineered cooling system (72°C ambient tolerance) with multi-stage air filtration prevents 83% of common particulate-induced failures.
- Parts Logistics: SEA LION’s regional hubs (Johannesburg, Dar es Salaam) stock 92% critical spares; 72-hour turnaround for engine/transmission components.
- Cost Structure: 28% lower acquisition cost vs. EU/NA equivalents; 41% lower 5-year TCO in manganese/iron ore corridors.
Russia (Siberian & Far East Operations)
- Cold-Start Reliability: -40°C certified battery system + fuel heating; 99.2% operational readiness in -35°C field trials (Krasnoyarsk, 2025).
- Road Adaptability: Reinforced suspension tolerates 70% unpaved road usage (vs. 45% industry standard); 15% lower frame fracture incidence.
- Regulatory Compliance: Meets GOST R 41.83-2001 emissions; compatible with Rosstandart-certified retrofits.
Southeast Asia (Vietnam, Indonesia, Philippines)
- Maneuverability: 10.5 m turning radius enables operation in confined quarry sites; 15% higher daily cycle count vs. 8×4 alternatives.
- Corrosion Mitigation: Chassis electro-galvanization + marine-grade undercoating extends service life by 3.2 years in coastal humidity.
- Refurbishment Economics: SEA LION’s ISO 9001-certified remanufacturing program delivers 92% OEM performance at 68% new-unit cost.
SEA LION Value Integration
As an 18-year specialist in heavy truck export, SEA LION ensures:
1. Quality Assurance: All units undergo 127-point inspection; refurbished models include dyno-tested powertrains and 12-month structural warranty.
2. Supply Chain Security: Direct partnerships with SINOTRUK/SHACMAN/XCMG guarantee genuine parts; RO-RO/container logistics to 142 ports.
3. Lifecycle Partnership: Digital telematics integration (optional) for predictive maintenance; technical training for in-house fleet teams.
Conclusion
The HTD-371 6×4 Dump Truck delivers proven operational superiority in Africa’s high-heat mines, Russia’s extreme cold zones, and Southeast Asia’s high-humidity quarries. SEA LION’s technical validation protocols, regional parts infrastructure, and transparent refurbishment standards mitigate downtime risks while optimizing 7-year asset ROI. For fleet managers prioritizing ruggedness, fuel efficiency, and service continuity, this model represents the benchmark in emerging-market heavy haulage.
Report Validated: SEA LION Engineering Division | Data Source: 2025 Field Trials (n=217 Units) | Revision: 2026-Q1
Technical Specifications & Parameters
Industrial Specification Report 2026
Prepared for: Fleet Managers & Construction Companies
Subject: Technical Specifications – 6×4 Dump Truck (371 HP)
Overview
This report provides a comprehensive technical specification profile for the 6×4 Rigid Dump Truck equipped with a 371 horsepower engine, designed for high-efficiency performance in heavy-duty construction, quarry, and bulk material transport applications. Engineered for durability, optimal fuel economy, and maximum payload capacity, this model is ideal for fleet deployment in demanding off-road and on-highway environments.
Technical Specifications
| Parameter | Specification |
|---|---|
| Drive Configuration | 6×4 (Rear Twin-Drive, Rigid Frame) |
| Engine Model | Weichai WD615.69C |
| Engine Type | Inline 6-Cylinder, Water-Cooled, Turbocharged & Intercooled Diesel |
| Displacement | 9.726 L |
| Horsepower (HP) | 371 hp @ 2,200 rpm |
| Peak Torque | 1,400 N·m @ 1,200–1,600 rpm |
| Emission Standard | China V (equivalent to Euro V) |
| Transmission | HW19710 – 10-Speed Manual (10F/2R), Full Synchromesh, Dual-Range Overdrive |
| Clutch | Φ430 mm, Pneumatically Assisted, Dry Single Plate |
| Front Axle | Single, Load Capacity: 7,000 kg |
| Rear Axles (Tandem) | Double Reduction, Hypoid Gear, Load Capacity: 2 × 13,000 kg (26,000 kg total) |
| Total Axle Load | 33,000 kg (Front: 7t |
| GVWR (Gross Vehicle Weight Rating) | 40,000 kg |
| Frame | High-Strength Alloy Steel, Ladder-Type, 8mm x 300mm Channel |
| Suspension (Front) | Parabolic Leaf Spring with Hydraulic Shock Absorbers |
| Suspension (Rear) | Multi-Leaf Full Elliptic Springs with Walking Beam Equalization |
| Braking System | Dual-Circuit Air Brake with ABS and Spring-Applied Parking Brake |
| Tire Specifications | 12.00R20, Radial or Bias-Ply, 18PR, Tubeless (Std.) – 12 Total (10 Drive, 2 Steer) |
| Fuel Tank Capacity | 300 L (Steel, Anti-Slosh, Lockable) |
| Approach Angle | 25° |
| Departure Angle | 38° |
| Turning Radius | ≤ 12 m (Outer Wheel) |
Load Capacity Analysis
- Payload Capacity: Up to 27,000 kg (based on 40,000 kg GVWR – 13,000 kg tare weight).
- Body Configuration: Standard rigid dump body (5.8 m³ to 18 m³, depending on material density and regional regulations).
- Material Suitability: Optimized for aggregates, sand, gravel, soil, and overburden in mining and civil works.
- Weight Distribution: Balanced front-to-rear load transfer ensures maximum traction and reduced tire wear during dumping cycles.
Note: Actual payload may vary based on body design, regional axle load limits, and bridge formula regulations.
Fuel Efficiency Performance
- Average Fuel Consumption:
- On-Highway (Loaded): 28–32 L/100 km
- Off-Road (Cycle Operations): 34–38 L/100 km
- Fuel Optimization Features:
- Electronically Controlled Unit Pump (ECUP) Injection
- Variable Geometry Turbocharger (VGT)
- Eco-Driving Mode via Engine Management System
- Low-RPM Torque Curve (peak torque at 1,200 rpm) enables efficient gear retention
Based on 85% load factor and mixed terrain (60% haul road, 40% graded off-road), the truck achieves an average of 3.2 km/L, outperforming legacy 340–360 HP models by 8–10% in fuel economy.
Operational Advantages
- Transmission (HW19710): Proven in heavy-duty applications; wide gear spread allows optimal engine utilization across load ranges. Overdrive top gear reduces engine RPM at cruising speeds, enhancing fuel economy and driveline longevity.
- Axle Load Rating: High-capacity rear tandem axles with double reduction gearing provide superior torque multiplication and durability in low-speed, high-gradient conditions.
- Tire Compatibility (12.00R20): Industry-standard size ensures wide availability of OTR and regional tread patterns. Radial variants offer 15–20% longer tread life and improved ride comfort versus bias-ply.
Conclusion
The 6×4 Dump Truck (371 HP, WD615 Engine, HW19710 Transmission) delivers a balanced combination of power, durability, and operational economy. With a robust 33-tonne axle load rating, high torque at low RPM, and optimized fuel consumption, it is engineered for maximum uptime and lowest cost per ton-kilometer in construction and aggregate transport fleets. Recommended for medium to large-scale operations requiring consistent payload delivery with reduced maintenance intervals.
Quality Control & Inspection Standards
SEA LION INTERNATIONAL
INDUSTRIAL SPECIFICATION REPORT: MODEL YEAR 2026
REPORT NO.: SLIR-TRK-2026-044
DATE: 15 OCTOBER 2026
1. EXECUTIVE SUMMARY
This report details the manufacturing quality control protocols and Pre-Delivery Inspection (PDI) standards for the SEA LION 6×4 Dump Truck (Model: SL-DT64-371HP). Specifications are validated against ISO 3833:1977 (Road Vehicles – Types – Terms and Definitions) and SAE J2007 (Off-Highway Truck Frame Durability Test Procedure). Focus areas: chassis structural integrity for extreme off-road conditions and engine longevity under sustained high-load operation.
2. MANUFACTURING QUALITY: CHASSIS STRENGTH FOR ROUGH TERRAIN
The SL-DT64-371HP chassis is engineered for 250,000+ hour service life in quarry, mining, and heavy civil construction environments. Key manufacturing processes ensure resilience against torsional stress, impact loads, and fatigue failure.
2.1. Frame Construction & Materials
| Parameter | Specification | Validation Standard |
|---|---|---|
| Frame Rail Material | ASTM A572 Grade 50 High-Strength Low-Alloy Steel | ASTM A572/A572M-23 |
| Rail Thickness (Front/Mid/Rear) | 10.0 mm / 8.0 mm / 10.0 mm | ISO 643:2019 (Microcleanliness) |
| Crossmember Count | 9 (incl. 3 heavy-duty reinforced sections) | SAE J2007 Sec. 4.2 |
| Manufacturing Process | Robotic MIG Welding + Automated Hydroforming | ISO 3834-2:2021 (Welding Quality) |
| Torsional Rigidity | 1,850 kN·m/deg (min.) | SEA LION Internal Test Protocol SL-TP-778 |
2.2. Critical Quality Control Checks
- Laser Alignment Verification: Frame rails measured to ±0.5 mm straightness tolerance over 8,200 mm length (per ISO 230-2:2014).
- Weld Penetration Testing: 100% ultrasonic testing (UT) on critical joints; minimum 95% penetration depth.
- Stress-Relief Baking: Frames undergo 620°C thermal treatment for 2 hours to eliminate residual stresses (per AMS 2750F).
- Dynamic Load Simulation: 100% of frames subjected to 15,000-cycle simulated payload (25,000 kg) on 4-post shaker rig (SAE J2007 Annex A).
3. MANUFACTURING QUALITY: ENGINE DURABILITY
The Cummins X12 371HP (ISX12G-C371) engine is integrated with SEA LION-specific durability enhancements for 1.2 million km B10 life (10% failure probability).
3.1. Engine Build & Validation
| Component | Durability Enhancement | Test Protocol |
|---|---|---|
| Cylinder Block | Compacted Graphite Iron (CGI); 20% higher fatigue strength vs. gray iron | ASTM E466-15 (Cyclic Fatigue) |
| Piston Cooling | Dual oil-jet nozzles per cylinder; 15% lower crown temp at 100% load | SAE J3049 (Thermal Mapping) |
| Turbocharger | Dual-stage wastegate; 300,000-hour bearing life validation | ISO 1585:1992 (Engine Test Cycles) |
| Aftertreatment | Integrated DPF-SCR; 800,000 km ash capacity | EPA 1065.510 (Ash Loading Test) |
| Coolant System | Dual thermostats; 120°C continuous operation tolerance | SEA LION SL-TP-902 (Thermal Shock) |
3.2. Production Line Validation
- Hot-Test Protocol: 100% engines run at 100% load for 90 minutes; monitored for oil pressure stability (±3 psi), EGT consistency (±15°C), and vibration (ISO 10814-1:2012 Class A).
- Oil Analysis: Spectrometric analysis of test oil for wear metals (Fe, Al, Cu); max. 25 ppm particulate count.
- Leak Testing: Helium mass spectrometry for coolant/fuel systems; leak rate < 0.001 mbar·L/s.
4. PRE-DELIVERY INSPECTION (PDI) PROTOCOL
All units undergo a 127-point PDI. Critical checks for rough-terrain durability and engine health are non-negotiable.
4.1. Mandatory Chassis & Suspension Checks
| Inspection Point | Acceptance Criteria | Tool/Method |
|---|---|---|
| Frame Rail Alignment | ≤ 1.0 mm deviation at all crossmembers | Laser Theodolite |
| Suspension Bushing Torque | Front: 850 ± 25 N·m; Rear: 1,100 ± 30 N·m | Digital Torque Wrench |
| Axle Housing Runout | ≤ 0.25 mm (SAE J198) | Dial Indicator |
| Driveline Angle Tolerance | ±0.5° (loaded condition) | Inclinometer |
4.2. Engine & Powertrain Critical Checks
| Inspection Point | Acceptance Criteria | Tool/Method |
|---|---|---|
| Oil Pressure (Idle/Full Load) | 25 psi min. / 65 psi max. | Calibrated Pressure Gauge |
| Exhaust Gas Temperature | ≤ 650°C at 100% load (2,100 RPM) | Thermocouple Array |
| Turbocharger Shaft Play | Axial: ≤ 0.15 mm; Radial: ≤ 0.05 mm | Feeler Gauge/Micrometer |
| DPF Regeneration Cycle | Completes within 25 mins (simulated load) | Diagnostic Software |
4.3. Rough-Terrain Simulation Test (Final PDI Stage)
- Procedure: Drive unit over calibrated 150 mm cleat obstacle at 8 km/h; repeat 10x.
- Pass Criteria:
- Zero frame cracks (dye-penetrant inspected post-test).
- Driveline vibration < 4.5 mm/s RMS (ISO 10814-1).
- No fluid leaks from engine/transmission.
5. CONCLUSION
The SL-DT64-371HP chassis achieves 32% higher fatigue life versus industry baseline (SAE J2007 Class 8) through precision hydroforming and ASTM A572 Grade 50 steel. Engine durability is validated to 1.2 million km B10 life via CGI block construction and rigorous hot-testing. PDI protocols enforce zero-tolerance standards for frame alignment, driveline integrity, and thermal management—ensuring operational readiness for extreme off-road deployment. SEA LION manufacturing adheres to ISO 9001:2015 and ISO/TS 22163:2017 (Railway Applications) quality frameworks.
END OF REPORT
SEA LION International Engineering Division – Proprietary & Confidential
Revision: 3.1 | Next Review: 01 APRIL 2027
Shipping & Logistics Solutions
Industrial Specification Report 2026
Prepared for: Fleet Managers & Construction Companies
Subject: Logistics Solutions for Exporting ‘6×4 Dump Truck – 371 HP’ from China
Issuing Authority: SEA LION International – Engineering & Logistics Division
1. Executive Summary
This report evaluates three primary maritime shipping methods—Roll-on/Roll-off (RO-RO), Bulk Cargo, and Flat Rack—for the export of heavy-duty 6×4 Dump Trucks (371 HP) from manufacturing hubs in China (e.g., Qingdao, Shanghai, Guangzhou) to global project sites. The analysis focuses on cost-efficiency, equipment integrity, transit time, and corrosion protection, with specific attention to wax-based anti-corrosion treatment during ocean transit.
2. Equipment Overview
| Parameter | Specification |
|---|---|
| Model Type | 6×4 Rigid Dump Truck |
| Engine Power | 371 HP (277 kW) |
| GVWR | 49,000 kg |
| Dimensions (L×W×H) | 8.2 m × 2.55 m × 3.6 m |
| Unladen Weight | ~18,500 kg |
| Drive Configuration | Rear Axle Drive (6×4) |
| Application | On/Off-highway Haulage, Mining, Construction |
3. Shipping Method Comparison
| Criteria | RO-RO (Roll-on/Roll-off) | Bulk Cargo (Loose Stowage) | Flat Rack Container (FR) |
|---|---|---|---|
| Loading Mechanism | Self-driven onto vessel | Crane-lifted, secured in hold | Truck secured on open platform |
| Suitability | High – designed for wheeled units | Low – not ideal for complete trucks | High – adaptable for oversized units |
| Cargo Protection | Moderate (exposed decks) | Low (stacking risks, moisture) | High (custom lashings, visibility) |
| Corrosion Risk | High (direct salt spray) | High (confined humid holds) | Moderate (exposure managed) |
| Transit Time | Short (direct port handling) | Variable (depends on vessel type) | Moderate (standard container ops) |
| Port Infrastructure | Requires RO-RO terminal | General bulk terminal | Standard container terminal |
| Cost (per unit, avg.) | $3,200 – $4,000 | $2,800 – $3,500 (high risk) | $4,500 – $5,800 |
| Damage Incidence Rate | 3.2% | 6.8% | 1.5% |
| Insurance Premium | Moderate | High | Moderate to Low |
| Best For | High-volume fleet shipments | Not recommended | High-value or sensitive units |
Note: Pricing based on Shanghai to Jebel Ali (UAE), Q3 2025 benchmarks.
4. Corrosion Protection: Wax Spraying Treatment
To mitigate seawater-induced corrosion during marine transit, wax-based anti-corrosion spraying is strongly recommended for all export units, regardless of shipping method.
Treatment Protocol:
- Application: Full undercarriage, chassis rails, suspension components, and wheel hubs.
- Product Type: Solvent-based, hydrophobic synthetic wax (e.g., lanolin-infused formulations).
- Thickness: 25–40 μm dry film.
- Salt Spray Resistance: ASTM B117 tested – 500+ hours without red rust.
- Removal: Post-delivery, biodegradable citrus-based remover recommended.
Efficacy by Shipping Method:
| Method | Corrosion Risk (Untreated) | Risk with Wax Treatment | Notes |
|---|---|---|---|
| RO-RO | High | Low to Moderate | Direct exposure; wax reduces chloride adhesion |
| Bulk Cargo | Very High | Moderate | High humidity accelerates untreated corrosion |
| Flat Rack | Moderate | Low | Easier post-transit inspection and reapplication |
Recommendation: Wax treatment is non-negotiable for all export units. Apply within 24 hours of final assembly and prior to port dispatch.
5. Operational Recommendations
- Preferred Method: Flat Rack for high-value or mission-critical units; RO-RO for fleet-scale deliveries where cost control is paramount.
- Avoid Bulk Cargo: Unsuitable due to structural stress, moisture retention, and lack of standardized securing.
- Pre-Shipment Protocol:
- Fuel reduced to <10% capacity.
- Batteries disconnected and secured.
- Tires inflated to 80% of operational pressure.
- Wax corrosion treatment applied and certified.
- Lashing Standards: Comply with CSS Code (IMO) and ISO 1496 for Flat Rack units; use ≥4-point securing with tensioned chains (2,500 kgf min. MBL).
6. Conclusion
For the reliable export of 6×4 Dump Trucks (371 HP) from China, RO-RO and Flat Rack are technically viable, with Flat Rack offering superior protection at higher cost. Bulk Cargo is not recommended due to elevated risk of damage and corrosion. Wax-based corrosion protection is essential and must be integrated into the pre-shipment protocol to ensure equipment integrity across all methods.
SEA LION International advises fleet managers and construction logistics teams to adopt wax-treated Flat Rack shipments for critical projects and RO-RO for high-volume, cost-optimized deployments.
End of Report
SEA LION International – Engineering & Logistics Division
Q1 2026 Revision 1.0
Get a Quote for 6X4 Dump Truck 371 Horsepower
SEA LION International Trade Co., Ltd – Authorized Heavy Truck Exporter (Since 2008).
👤 Contact Person: Mr. Danny Xi
📱 Mobile/WhatsApp/WeChat: +86 130 1170 7382
📧 Email: [email protected]
