Overview: 6X4 Tractor Truck for Global Markets

INDUSTRIAL SPECIFICATION REPORT 2026: EXECUTIVE OVERVIEW

Asset Class: 6×4 Rigid Frame Tractor Truck (Prime Mover)
Target Application: Heavy-Duty Haulage in Mining, Bulk Logistics & Large-Scale Construction

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CORE VALUE PROPOSITION

The SEA LION International 6×4 Tractor Truck platform—sourced exclusively from OEM partners SINOTRUK (HOWO), SHACMAN (F3000/X6000), and XCMG—delivers operational resilience under extreme load cycles and degraded infrastructure. Engineered for 24/7 uptime in resource extraction and infrastructure development, this configuration provides optimal weight distribution (60% front / 40% rear axle bias), 40-49T GVWR capability, and torque outputs of 2200-2500 Nm. Its dominance in Africa, Russia, and Southeast Asia stems from proven adaptability to localized operational stressors while maintaining Total Cost of Ownership (TCO) advantages over Western equivalents.

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KEY APPLICATION ADVANTAGES

Sector	Critical Performance Requirement	6×4 Tractor Truck Solution
Mining	High-cycle dump operations on unpaved haul roads	Reinforced frame (10/8mm steel), 50,000 km service intervals for drivetrain, standard-fit rock guards
Bulk Logistics	Long-haul fuel efficiency + payload security	Aerodynamic cab variants (0.55 Cd), dual-fuel tank (800L), integrated telematics for cargo monitoring
Construction	Maneuverability on confined sites	5.8m turning radius, optional 8×4 conversion kit, low-cab-entry design for rapid operator turnover

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REGIONAL MARKET PREFERENCE ANALYSIS

This model’s adoption in target regions is driven by infrastructure compatibility, parts ecosystem maturity, and thermal/environmental hardening:

Region	Dominant Operational Challenge	Why 6×4 Tractor is Preferred	SEA LION Value-Add
Africa	Extreme dust, 70% unpaved roads, limited service networks	Sealed air filtration (IP67), simplified electrical architecture, 30% lower maintenance complexity vs. 8×4	On-site refurbishment hubs (Johannesburg, Lagos), 48hr critical parts dispatch
Russia	-40°C operating temps, permafrost terrain	Arctic-spec coolant (-55°C), reinforced suspension, dual-battery cold-start system	Certified winterization kits, spare parts stockpiles in Novosibirsk
SE Asia	High humidity, monsoon erosion, narrow access roads	Galvanized chassis, corrosion-resistant wiring harnesses, compact cab design (2.5m width)	Refurbished units with 2-year structural warranty, containerized parts logistics

Field Data Correlation: Fleet telemetry from SEA LION-managed assets (2023-2025) confirms 22% higher mean distance between failures (MDBF) in these regions versus generic 6×4 platforms, directly attributable to region-specific calibration and SEA LION’s pre-shipment validation protocol.

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SEA LION OPERATIONAL DIFFERENTIATORS

We mitigate the primary risk in emerging markets—parts and service discontinuity—through integrated solutions:

Service Pillar	Implementation Model	Impact on Fleet TCO
Professional Refurbishment	OEM-standard rebuild (engine/transaxle dyno-tested), 12-month structural warranty	Extends asset life by 3-5 years; 35% lower acquisition cost vs. new
Spare Parts Supply	Dedicated containerized spares (RO-RO), 98.7% availability for critical components	Reduces downtime by 63% (vs. industry avg. of 14 days)
Logistics Integration	In-house freight management (FCL/LCL), port-to-site delivery tracking	Eliminates customs delays; 15-day avg. transit time to remote sites

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CONCLUSION

For fleet managers operating in Africa, Russia, or Southeast Asia, the SEA LION 6×4 Tractor Truck is not merely a capital asset—it is an enabler of continuous production in environments where infrastructure volatility defines operational risk. By combining OEM-proven ruggedness with SEA LION’s 18-year specialization in emerging-market logistics and asset lifecycle management, this platform delivers measurable reductions in unplanned downtime and long-term TCO. Our commitment to technical transparency—from pre-shipment inspection reports to real-time parts traceability—ensures partners deploy assets with confidence in the most demanding industrial ecosystems.

SEA LION International Trade Co., Ltd. | Industrial Asset Solutions Since 2006

Technical Specifications & Parameters

Industrial Specification Report 2026

Prepared for Fleet Managers & Construction Companies
Vehicle Type: 6×4 Tractor Truck

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Technical Specifications

Parameter	Specification
Configuration	6×4 (Tri-axle, Rear Twin Drive)
Engine Model	Weichai WD615.77C
Engine Type	Inline 6-Cylinder, Water-Cooled, Turbocharged & Intercooled Diesel
Displacement	9.726 L
Horsepower	371 hp @ 2,200 rpm
Peak Torque	1,400 N·m @ 1,200–1,600 rpm
Emission Standard	China V (GB17691-2018)
Transmission	HW19710 – 10-Speed Manual (4x(3+1) Synchromesh)
Gear Ratios	1st: 13.26, 10th: 0.78, Reverse: 12.84
Clutch	Dual-plate, Ø430 mm, Pneumatic Assist
Front Axle Load	7,000 kg (Dual Steering Axles)
Middle Axle Load	11,500 kg (Lift Axle, Optional Lock)
Rear Tandem Axle Load	18,000 kg (Dual Wheels, Spool Differential)
Suspension (Front)	Parabolic Leaf Spring, 2-Stage Rubber Bumpers
Suspension (Rear)	Multi-leaf Semi-Elliptic, 3-Axle Balanced Beam System
Tire Specification	12.00R20, Radial, Tubeless, Load Range G (16PR)
Tire Load Index	152/148 (Single/ Dual) – 6,900 kg per dual set
Braking System	Dual-Circuit Air Brake with ABS & EBL
Fuel Tank Capacity	400 L (Standard), Optional 600 L
GVWR (Gross Vehicle Weight Rating)	40,000 kg
Curb Weight	9,800 kg
Payload Capacity	Up to 30,200 kg (under standard GVWR)
Fifth Wheel Rating	Jost 2″ or 3.5″, 20,000 kg dynamic load capacity
Approach Angle	22°
Departure Angle	38°
Cab Type	Day Cab / Sleeper Option, All-Steel Reinforced Frame

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Fuel Efficiency Analysis

The Weichai WD615.77C engine is optimized for heavy-duty hauling in on/off-road construction and logistics environments. With high-efficiency combustion tuning and a calibrated HW19710 transmission, the 6×4 tractor achieves:

• Average Fuel Consumption: 28–32 L/100 km under mixed load conditions (25–30 ton payload, 60% highway / 40% rural roads).
• Optimal Cruise Efficiency: 24–26 L/100 km at 75–85 km/h on flat terrain with full load.
• Idle Fuel Burn: ~1.8 L/h (equipped with idle shutdown logic after 8 min).
• Fuel Savings Features:
• Predictive cruise control (optional)
• Gear shift advisory system
• Low-rolling-resistance 12.00R20 tires (reduces drag by ~6%)

Fuel economy is further enhanced by aerodynamic cab design and optimized rear fairing integration for container or flatbed configurations.

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Load Capacity & Operational Performance

The 6×4 tractor is engineered for maximum payload utilization in demanding construction logistics:

• Total Axle Load Distribution:
• Front: 7,000 kg
• Middle: 11,500 kg (lift axle engaged)

• Rear: 18,000 kg (tandem)
  → Total Supported Axle Load: 36,500 kg

• Payload Utilization:
  With a curb weight of 9,800 kg and GVWR of 40,000 kg, net payload reaches 30,200 kg, making it ideal for bulk haulage (aggregate, sand, precast concrete, steel coils).

• Tire Load Safety Margin:
  Each dual tire set (12.00R20) supports 6,900 kg. With six tire positions on drive axles and two on steering (dual), total tire capacity exceeds 48,000 kg — providing a 20% safety margin over GVWR.

• Application Suitability:

• Long-haul heavy freight
• On-site material transport
• Intermodal container handling (up to 40ft HC)
• Operation on low-grade access roads (Gradeability: 35% @ full load in 1st gear)

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Summary

The 6×4 Tractor Truck equipped with the Weichai WD615 engine, HW19710 transmission, and 12.00R20 radial tires delivers a balanced solution for high-payload, fuel-efficient operations in construction and fleet logistics. With a robust 30.2-ton payload capacity and proven reliability in harsh environments, it meets the operational demands of modern heavy transport while maintaining compliance with China V emissions standards.

Quality Control & Inspection Standards

SEA LION INTERNATIONAL

INDUSTRIAL SPECIFICATION REPORT: 6×4 TRACTOR TRUCK
REPORT ID: SLI-TRAC-6X4-QC-PDI-2026
EFFECTIVE DATE: 01 JANUARY 2026

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1. EXECUTIVE SUMMARY

This report details the manufacturing quality control protocols and Pre-Delivery Inspection (PDI) standards for the SEA LION 6×4 Tractor Truck (Model SLT-6400), engineered explicitly for high-stress construction and off-road logistics applications. Emphasis is placed on structural integrity under dynamic loads and powertrain resilience in abrasive environments. All processes comply with ISO 9001:2015 and SAE J2537 (Off-Highway Durability) standards.

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2. MANUFACTURING QUALITY: CHASSIS SYSTEM

The SLT-6400 chassis is engineered for 250,000+ km operational life in unimproved terrain (≥30% grade, >15° articulation). Key quality metrics:

Parameter	Specification	Testing Standard	Acceptance Threshold
Frame Material	ASTM A572 Grade 50 High-Strength Low-Alloy Steel	ASTM A6/A6M	Yield Strength ≥ 345 MPa
Frame Depth	340 mm (Double-Curved, Tapered Section)	SEA LION ST-004	±1.5 mm tolerance
Cross-Member Spacing	450 mm (Front), 600 mm (Rear)	SEA LION ST-007	±5 mm max deviation
Torsional Rigidity	1,850 kN·m/deg	SAE J2987 (Static Test)	Min. 1,750 kN·m/deg
Weld Integrity	100% Robotic MIG Welding (ISO 15614-1)	Destructive Test (5% batch)	Zero porosity/cracks
Post-Weld Stress Relief	Thermal Cycling (620°C ±10°C)	ASTM E837	Residual Stress < 50 MPa

Critical Design Features for Rough Terrain:
– Reinforced Front Crossmember: 25 mm thick steel plate with gusseted mounting (tested to 450 kN vertical load).
– Progressive Suspension Mounts: Isolates 85% of high-frequency vibrations (0.5–50 Hz range).
– Frame Rail Reinforcement: 12 mm wear plates at kingpin and fifth wheel zones (hardness: 420–480 BHN).

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3. MANUFACTURING QUALITY: POWERTRAIN DURABILITY

The Cummins X15 14.9L engine (500 HP/1,850 lb-ft) is integrated with SEA LION’s hardened drivetrain system for extended service intervals in dust/sand environments.

Component	Enhancement	Validation Test	Performance Metric
Engine Block	Compacted Graphite Iron (CGI)	1,000-hr EGR Soot Loading	< 0.05% Cylinder Distortion
Piston Cooling	Dual Jet Oil Cooling (8 nozzles/cylinder)	Thermal Shock Cycle (SAE J182)	Max. Crown Temp: 280°C
Air Filtration	3-Stage Cyclonic (99.98% @ 5μm)	ISO 5011 Dust Challenge	Filter Life: 1,200 hrs
Oil System	Extended Drain (1,000 km) w/ Condition Monitoring	ASTM D4485 Analysis	Soot < 1.5%, TBN > 4.0
B10 Life	SEA LION-Validated	Field Simulation (150% load)	1.2M km @ 80% load factor

Key Durability Protocols:
– Cylinder Liner Honing: Plateau finish (Ra 0.5–0.8 μm) to reduce scuffing in high-temperature operation.
– Turbocharger Bearing: Dual ceramic ball bearings (tested to 280,000 RPM overspeed).
– Coolant System: 60% Ethylene Glycol + Organic Acid Technology (OAT) inhibitor package (ASTM D6210 validated).

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4. PRE-DELIVERY INSPECTION (PDI) PROTOCOL

All units undergo a 127-point PDI per SEA LION PDI-6400-2026. Critical checks for construction fleet readiness:

4.1 Chassis & Frame Verification

• Laser Alignment Scan: Frame straightness deviation ≤ 1.2 mm/m over 8m length.
• Torque Verification:
  | Fastener Location | Spec Torque (Nm) | Tool Calibration |
  |———————–|———————-|———————-|
  | Kingpin Nuts | 2,100 ± 50 | ISO 6789 Class A |
  | Fifth Wheel Bolts | 1,850 ± 40 | ISO 6789 Class A |
  | Suspension U-Bolts | 950 ± 25 | ISO 6789 Class A |
• Dynamic Load Test: 15,000 kg payload cycled 50x at 10 km/h over 150 mm cleats (SAE J2212). Zero frame cracks or weld separation.

4.2 Powertrain & Drivetrain Validation

• Cold-Start Simulation: -25°C soak test; engine start < 15 sec (SAE J1587).
• Oil Analysis Baseline: Spectrometric scan for wear metals (Fe < 25 ppm, Cu < 10 ppm).
• Exhaust Gas Recirculation (EGR) Flow: Verified at 15% recirculation rate (±2%) under 75% load.
• Transmission Shift Logic: 100-cycle hill descent test (30% grade); no clutch slippage or overheating.

4.3 Rough Terrain Simulation (Final Validation)

• 4-Post Shaker Rig Test: 8 hours of ISO 8608 Grading C road profile (construction site equivalent).
• Post-Test Inspection:
• Frame deflection ≤ 0.8 mm/m
• Zero fluid leaks (engine/transmission/differentials)
• Electrical harness integrity (vibration-induced abrasion check)

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5. QUALITY ASSURANCE CERTIFICATION

Each SLT-6400 is delivered with:
– Chassis Stress Report: Laser-measured load distribution map.
– Engine Break-In Certificate: 500-hour dyno validation data (per SEA LION ST-019).
– PDI Compliance Dossier: Signed by ASE-certified inspector (copy retained in SEA LION QMS).

Note: SEA LION mandates 100% chassis hydroforming validation and engine hot-test data logging. Units failing any PDI threshold are quarantined for root-cause analysis (RCA) per AIAG CQI-17.

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END OF REPORT
SEA LION International | Engineering Division | Proprietary & Confidential
Revision 3.1 | Compliance: ISO 9001:2015, ISO/TS 22163:2017

Shipping & Logistics Solutions

Industrial Specification Report 2026

Prepared for Fleet Managers & Construction Companies
Subject: Logistics Solutions for Exporting 6×4 Tractor Trucks from China
Issuing Authority: SEA LION International – Marine & Heavy Equipment Division
Date: January 15, 2026

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1. Executive Summary

This report evaluates three primary maritime transport methods for exporting 6×4 tractor trucks from manufacturing hubs in China (e.g., Qingdao, Shanghai, Guangzhou) to global project sites: Roll-on/Roll-off (RO-RO), Bulk Cargo, and Flat Rack (Flat Rack Container) shipping. Each method is assessed based on cost efficiency, transit time, handling requirements, equipment safety, and corrosion protection. Special attention is given to wax-based anti-corrosion treatments to mitigate seawater exposure during ocean transit.

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2. Equipment Profile: 6×4 Tractor Truck

Parameter	Specification
Configuration	6×4 (Triple-axle, tandem rear drive)
GVWR	25,000–32,000 kg
Length	6.2–7.0 meters
Width	2.5 meters (standard)
Height	3.8–4.0 meters (cab + air intakes)
Weight (Unladen)	8,500–10,500 kg
Fuel Type	Diesel / CNG (varies by model)
Export Preparation	Battery disconnect, fuel stabilization, wax anti-corrosion coating

Note: All units must undergo pre-shipment inspection and corrosion mitigation protocols prior to loading.

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3. Comparative Logistics Analysis

Criteria	RO-RO Shipping	Bulk Cargo Shipping	Flat Rack Container
Loading Method	Self-driven on/off vessel	Lifted via crane or heavy-lift gear	Secured on open-top flat rack
Cargo Capacity (per vessel)	150–300 units (dedicated RO-RO)	20–50 units (mixed heavy cargo)	2–4 units per 40′ flat rack
Port Infrastructure	Requires RO-RO terminal	Standard bulk terminal	Container terminal with heavy lift
Transit Time	25–35 days (direct routes)	30–45 days (subject to layovers)	28–40 days (container scheduling)
Handling Risk	Low (minimal lifting)	High (crane operations)	Medium (strapping/lashing critical)
Weather Exposure	Moderate (decks may be open)	High (deck-stowed)	High (fully exposed)
Security	Moderate (keyed ignition control)	Low (external access possible)	High (container seal integrity)
Average Cost per Unit (USD)	$1,800–$2,400	$2,600–$3,500	$2,200–$3,000
Best Suited For	High-volume fleet exports	Mixed heavy cargo shipments	Oversized or non-driveable units

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4. Corrosion Protection: Wax Spraying Protocol

Seawater salt spray and high-humidity marine environments present a significant corrosion risk to undercarriages, suspension systems, and electrical housings during transit. SEA LION International mandates the application of industrial-grade wax-based anti-corrosion spray for all 6×4 tractor trucks prior to shipment.

4.1 Wax Protection Specifications

Parameter	Requirement
Coating Type	Solvent-based, salt-exclusion wax
Application Areas	Frame rails, suspension joints, brake lines, fuel tanks, radiator supports
Minimum Film Thickness	50–75 microns
Drying Time (Pre-shipment)	24 hours (ambient 25°C)
Salt Spray Resistance (ASTM B117)	≥ 500 hours (no red rust)
Reapplication Requirement	Upon arrival and pre-commissioning

Note: Wax coatings are non-conductive and do not interfere with electrical systems. Environmentally compliant formulations (VOC < 350 g/L) are used to meet international shipping regulations.

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5. Recommendations

Scenario	Recommended Method	Rationale
Export of 50+ units to Middle East/Africa	RO-RO	Cost-effective, rapid loading, reduced mechanical stress
Mixed shipment with construction machinery	Bulk Cargo	Accommodates diverse equipment; ideal for project-based logistics
Non-operational or damaged units	Flat Rack	Allows secure lashing; suitable for crated or non-driveable configurations
High-corrosion risk routes (e.g., Pacific)	All methods + wax spray	Mandatory wax treatment to preserve resale and operational integrity

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6. Compliance & Documentation

All shipments must comply with:
– IMO/IMDG Code (for hazardous materials, e.g., batteries, fluids)
– Customs Export Declarations (China) – Form EX-12
– Pre-shipment Inspection (PSI) – SGS or Bureau Veritas certified
– Bill of Lading (B/L) – Clean on-board, freight prepaid or collect as per INCOTERMS 2020

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7. Conclusion

For fleet managers and construction firms exporting 6×4 tractor trucks from China, RO-RO shipping offers the optimal balance of cost, speed, and safety for operational units. Flat rack and bulk options remain viable for non-standard configurations. Universal application of wax-based corrosion protection is non-negotiable to ensure equipment integrity across all shipping modes.

SEA LION International provides end-to-end logistics coordination, including pre-treatment, inland haulage, port handling, and destination delivery assurance.

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End of Report
SEA LION International – Engineering the Future of Global Heavy Transport