Overview: 350 Excavator for Global Markets

INDUSTRIAL SPECIFICATION REPORT 2026: EXECUTIVE OVERVIEW

Asset Class: Heavy Haul Truck (350-Ton Payload Class)
Designation: Model XE350G (XCMG Platform)
Target Audience: Fleet Managers, Construction & Mining Operations Directors

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OPERATIONAL IMPERATIVE

Global resource extraction and large-scale infrastructure projects face escalating pressure to reduce cycle times, minimize downtime in extreme environments, and optimize total cost of ownership (TCO). Legacy fleets in developing markets suffer from inadequate parts support, substandard refurbishment, and logistics bottlenecks – directly impacting productivity. The XE350G addresses these constraints through engineered resilience and integrated support infrastructure.

WHY THE XE350G? CORE ADVANTAGES

This 350-ton haul truck platform delivers measurable operational superiority in high-abrasion, remote-site applications:

1. Payload Efficiency: 20% higher effective payload vs. legacy 320-ton competitors in overburden removal (validated in West African bauxite operations), directly reducing fuel-per-ton metrics.
2. Downtime Mitigation: Integrated telematics + SEA LION’s predictive maintenance protocols cut unscheduled downtime by 35% (Q3 2025 field data, Indonesia).
3. Environmental Adaptability:
   • -45°C Cold-Start Capability (Russia/Siberia deployments)
   • Enhanced Filtration Systems (98% dust rejection @ 50g/m³ ambient – critical for Sahel/Mongolian operations)
   • Corrosion-Resistant Chassis Coating (Extended service life in SE Asia’s high-humidity zones)

REGIONAL PREFERENCE: AFRICA, RUSSIA, SOUTHEAST ASIA

Market dominance stems from alignment with region-specific operational and logistical constraints:

Region	Critical Pain Points Solved by XE350G + SEA LION Support	Quantifiable Impact
Africa	Unpaved haul roads (>80% of sites); Parts scarcity; High ambient temps (45°C+); Limited technical capacity	40% longer driveline service life; 72hr avg. critical parts delivery via SEA LION’s Lagos hub
Russia	Extreme cold (-50°C); Sanctions-driven OEM parts shortages; Remote Arctic locations	Operates at -45°C without pre-heat; SEA LION-certified refurbished components meet GOST standards
SE Asia	Monsoon conditions; High corrosion rates; Fragmented logistics networks	30% faster drainage systems; Zinc-rich chassis treatment; Direct port-to-site containerized delivery

SEA LION’S VALUE INTEGRATION: BEYOND THE ASSET

Preference for the XE350G is amplified by SEA LION International’s industrial ecosystem:

• Refurbishment Standard: ISO 9001-certified process restores core systems (engine, transmission, axles) to 90%+ OEM performance; 24-month warranty.
• Parts Assurance: Dedicated XCMG/SINOTRUK inventory hubs in Durban, Vladivostok, and Singapore ensure <14-day critical component delivery.
• Logistics Precision: RO-RO vessel coordination for major projects; Containerized shipping for remote sites (reducing on-site assembly time by 65%).
• TCO Transparency: Full lifecycle cost modeling provided pre-deployment – including fuel, maintenance, and residual value projections.

CONCLUSION

The XE350G is not merely a haul truck; it is a productivity platform engineered for the operational realities of Africa, Russia, and Southeast Asia. Its adoption is driven by demonstrable reductions in cost-per-ton, resilience in extreme conditions, and crucially – SEA LION International’s capability to guarantee uptime through certified refurbishment, parts availability, and logistics execution. For fleet managers prioritizing long-term operational continuity over initial acquisition cost, the XE350G represents the current industry benchmark for 350-ton class assets in challenging global markets.

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Note: Specifications based on XCMG XE350G platform as distributed and supported by SEA LION International under authorized partnership. Performance data reflects 2025 field deployments across target regions.

Technical Specifications & Parameters

Industrial Specification Report 2026

Prepared for Fleet Managers & Construction Companies
Equipment: 350 Excavator (Heavy-Duty Model)

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Technical Specifications

Parameter	Specification
Engine Model	WD615 (Weichai Power)
Engine Type	6-Cylinder, Inline, Water-Cooled Diesel
Horsepower	258 hp (192 kW) @ 2,200 rpm
Transmission	HW19710 10-Speed Manual Synchronized Transmission
Axle Load (Front)	18,500 kg (40,785 lbs)
Axle Load (Rear)	16,500 kg (36,376 lbs)
Tire Specifications	12.00R20, Radial, Load Range G, 18PR, Tubeless
Operating Weight	35,000 kg (77,162 lbs)
Fuel Tank Capacity	500 L (132 US gal)

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Fuel Efficiency Analysis

The WD615 Weichai engine is engineered for optimal combustion efficiency and low fuel consumption under high-load operating conditions. Utilizing high-pressure common rail fuel injection and integrated electronic control unit (ECU), the 350 excavator achieves:

• Average Fuel Consumption: 28–32 L/h (7.4–8.5 US gal/h) under typical dig-and-swing cycles.
• Idle Fuel Use: 8.5 L/h (2.2 US gal/h), minimizing consumption during non-productive phases.
• Smart Power Management: The ECU dynamically adjusts engine output based on hydraulic load, improving fuel efficiency by up to 12% compared to previous-generation models.

Field data from 2025 heavy construction deployments indicate a fuel efficiency gain of 10–15% over legacy models, translating to approximately $18,000 annual savings per unit in fuel costs at 2,000 operating hours.

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Load Capacity & Operational Performance

The 350 excavator is designed for high-volume earthmoving, quarry operations, and large-scale infrastructure projects. Key load and performance metrics include:

• Maximum Digging Depth: 7,800 mm (25.6 ft)
• Maximum Reach at Ground Level: 10,200 mm (33.5 ft)
• Bucket Capacity (Standard): 1.8–2.2 m³ (2.4–2.9 yd³)
• Breakout Force (Bucket): 230 kN (51,700 lbf)
• Swing Torque: 280 kN·m (206,500 lbf·ft)

The HW19710 transmission provides precise gear engagement and high torque transfer efficiency, supporting consistent performance on inclines up to 30%. Combined with a balanced axle load distribution (53% front / 47% rear), the machine maintains stability during lifting and travel operations.

The 12.00R20 radial tires offer superior load-bearing capability (rated up to 3,650 kg per tire at 80 psi), excellent heat dissipation, and extended service life in abrasive terrain. Their deep tread pattern ensures reliable traction on mixed surfaces, including wet clay and crushed rock.

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Conclusion

The 350 excavator, powered by the Weichai WD615 engine and equipped with the HW19710 transmission, delivers industrial-grade performance with enhanced fuel economy and robust load handling. With a high operating weight, optimized axle loads, and durable tire specifications, it is ideally suited for continuous-duty applications in mining, road construction, and large-scale excavation. Fleet managers can expect improved uptime, reduced fuel expenditure, and long-term reliability across demanding job sites.

Quality Control & Inspection Standards

SEA LION INTERNATIONAL

INDUSTRIAL SPECIFICATION REPORT: MODEL EX-350 HYDRAULIC EXCAVATOR
REPORT EDITION: 2026 SERIES | EFFECTIVE: Q1 2026
TARGET AUDIENCE: FLEET MANAGERS, CONSTRUCTION EQUIPMENT PROCUREMENT OFFICERS

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1. MANUFACTURING QUALITY: CORE STRUCTURAL INTEGRITY

1.1 Chassis & Undercarriage (Rough Terrain Optimization)

The EX-350 chassis employs a monocoque-reinforced box-section frame constructed from DOMEX 700MC high-yield structural steel (EN 10149-2 compliant), engineered specifically for high-impact torsional loads encountered in quarry, mining, and steep-slope operations. Critical reinforcement zones utilize robotic MIG welding with 100% ultrasonic testing to eliminate porosity and ensure weld integrity.

Parameter	Specification	Testing Standard	Validation Result
Material Yield Strength	700 MPa (min)	ASTM A370	725 MPa (avg)
Frame Torsional Rigidity	18,500 Nm/deg	SEA LION ST-004-2025	19,200 Nm/deg
Fatigue Life (Simulated)	25,000 hrs @ 150% rated load	ISO 10891	28,400 hrs (pass)
Undercarriage Track Rollers	Hardened 42CrMo4 alloy (58-62 HRC surface)	ISO 15818	8,200 hrs wear life (min)

Key Design Features:
– Integrated Cross-Bracing: Triangulated gussets at boom foot/pinion zones reduce deflection by 32% vs. prior gen (per FEA validation).
– Sealed Track System: Double-lip seals + labyrinth dust guards maintain lubrication integrity in abrasive environments (validated per SAE J1047).
– Gradeability: Certified for sustained 58% slope operation (ISO 10262) with <0.5° frame twist under full load.

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2. ENGINE DURABILITY: POWERTRAIN VALIDATION

The EX-350 utilizes the SEA LION DL12-6.7L Tier 5 Final 6-cylinder turbocharged diesel engine, co-developed with Cummins® for extreme-cycle resilience. All engines undergo 100-hour accelerated duty-cycle validation prior to integration.

Parameter	Specification	Testing Protocol	Validation Result
B10 Life (Core Engine)	20,000 hrs	SEA LION ENG-2026	22,300 hrs
Cold-Start Capability	-35°C without auxiliary heat	SAE J244	Pass (-37°C verified)
Piston Ring Wear Rate	≤1.2 μm/hr @ 100% load	ASTM D6200	0.87 μm/hr (avg)
Oil Analysis Threshold	Fe ≤ 80 ppm, Si ≤ 25 ppm	SEA LION PDI-07	Fe: 42 ppm, Si: 11 ppm

Critical Durability Enhancements:
– Cylinder Liner: Centrifugally cast with boron nitride coating (reduces scuffing by 40% in high-dust testing).
– Turbocharger: Dual-ceramic ball bearing system rated for 15,000 hrs continuous operation (per ISO 23828).
– Cooling System: Dual-circuit design with 30% oversized radiator core; validated at 55°C ambient + 100% load for 500 hrs.

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3. PRE-DELIVERY INSPECTION (PDI) PROTOCOL

All EX-350 units undergo a 127-point PDI per SEA LION PDI-07 (2026 Revision), with critical focus on structural and powertrain integrity. Mandatory steps for rough-terrain readiness:

3.1 Chassis & Undercarriage Verification

Checkpoint	Method	Acceptance Criteria
Frame Alignment	Laser theodolite survey (8 datum points)	Max deviation: ±1.5 mm
Weld Integrity	100% ultrasonic + dye penetrant test	Zero cracks/voids
Track Tension Calibration	Hydraulic pressure gauge @ 25°C	450 ± 15 psi
Bushing Clearance	Dial indicator at pivot points	≤0.8 mm (new)

3.2 Engine & Powertrain Validation

Checkpoint	Method	Acceptance Criteria
Cold-Start Cycle	-25°C simulated start (3x consecutive)	<8 sec crank time
Load Test	100% rated load @ 2,200 rpm (60 min)	Oil temp ≤ 115°C; no leaks
Exhaust Gas Analysis	Real-time NOx/PM monitoring	Tier 5 compliance + 10% margin
Vibration Spectrum	Accelerometer @ engine mounts	<4.5 mm/s RMS (ISO 10816)

3.3 Final Operational Certification

• Dynamic Terrain Simulation: 2-hour cycle on SEA LION Proving Grounds’ “Rough Terrain” course (45° slopes, 300mm rock obstacles).
• Hydraulic System Pressure Test: 10% over max working pressure (375 bar) for 15 min; zero seal failure.
• Documentation: Full PDI report with torque logs, fluid analysis, and alignment certificates shipped with unit.

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4. QUALITY ASSURANCE COMMITMENT

• Traceability: Laser-etched VIN + QR code on chassis links manufacturing data (heat-treated components, weld logs) to unit history.
• Warranty Support: 5-year/10,000-hour structural warranty; engine core covered for 3 years/6,000 hours (excludes consumables).
• Field Validation: EX-350 prototypes operated 18 months in Chilean copper mines and Canadian oil sands; <0.8% structural incident rate.

NOTE: All specifications subject to SEA LION Technical Bulletin updates. Refer to SEA LION Portal (login required) for real-time engineering change orders.
DISCLAIMER: Performance metrics based on SEA LION-controlled testing environments. Actual field results may vary with operator practices and site conditions.

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SEA LION INTERNATIONAL | ENGINEERING EXCELLENCE SINCE 1987
This document contains proprietary technical data. Unauthorized distribution prohibited.

Shipping & Logistics Solutions

Industrial Specification Report 2026

Prepared for: Fleet Managers & Construction Companies
Subject: Logistics Solutions for Exporting 350-Ton Excavators from China
Issuing Authority: SEA LION International – Heavy Equipment Logistics Division
Date: January 2026

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1. Executive Summary

This report evaluates three primary maritime transport methods—Roll-on/Roll-off (RO-RO), Bulk Cargo, and Flat Rack container shipping—for the export of 350-ton class hydraulic excavators from manufacturing hubs in China (e.g., Xuzhou, Changsha) to global project sites. Each method is assessed for cost, transit time, equipment integrity, handling complexity, and corrosion protection, with emphasis on long-term durability in marine environments.

All shipments are assumed to originate from Shanghai/Ningbo ports and destined for major construction markets, including Southeast Asia, the Middle East, West Africa, and South America.

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2. Equipment Overview: 350-Ton Excavator

Parameter	Specification
Gross Weight	348,000 – 352,000 kg
Dimensions (L×W×H)	14.2 m × 4.5 m × 5.1 m
Undercarriage Width	4.5 m (fully extended)
Disassembly Requirement	Minimal (RO-RO), Partial (Flat Rack)
Sensitive Components	Hydraulic lines, control cabin, boom joints
Corrosion Risk Exposure	High (due to saltwater, humidity)

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3. Comparative Shipping Methods

Criteria	RO-RO (Roll-on/Roll-off)	Bulk Cargo (Loose Loading)	Flat Rack Container
Loading Mechanism	Self-propelled or towed onto vessel	Lifted by shipboard crane or port gantry	Secured on open-top flat rack units
Disassembly Level	Minimal (track-on ready)	Full disassembly recommended	Boom removal, cab tilt optional
Max Unit Weight Capacity	Up to 400 tons (specialized RO-RO)	Limited by crane capacity (~250t)	45 tons per 40′ FR (multi-unit)
Securing Method	Wheel chocks, lashing chains	Lashing, timber blocking	Twist locks, lashing, cradles
Port Infrastructure Need	RO-RO ramp, heavy-duty apron	Heavy-lift crane, laydown area	Container terminal, FR handling
Transit Time (Shanghai → Dubai)	18–22 days	20–26 days	22–28 days
Average Cost (USD/unit)	$38,000 – $45,000	$32,000 – $40,000 (with disassembly)	$52,000 – $65,000
Risk of Damage	Low (controlled roll-on)	High (lifting, stacking)	Medium (exposure, lash failure)
Insurance Premium	Low to Moderate	High	Moderate
Suitability for 350t Unit	High (if vessel available)	Low (weight exceeds limits)	Medium (requires multi-unit)

Note: Bulk cargo is generally unsuitable for intact 350-ton excavators due to crane limitations. Only feasible if disassembled into sub-100t components.

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4. Corrosion Protection Protocol: Wax Spraying System

To mitigate seawater-induced corrosion during ocean transit (average 20–30 days), SEA LION International mandates industrial-grade wax spraying as a standard preservation step for all heavy equipment exports.

Wax Spraying Specifications:

Parameter	Specification
Coating Type	Solvent-based, hydrophobic synthetic wax
Application Method	High-pressure spray (15–20 bar)
Coverage Areas	Undercarriage, track links, boom joints, hydraulic cylinders, exposed steel surfaces
Film Thickness	50–75 µm (dry)
Salt Spray Resistance	>1,000 hours (ASTM B117)
UV Stability	90 days minimum
Removal Process	Biodegradable solvent wash or steam cleaning
Reapplication Required	After 60 days at sea or pre-commissioning

Advantages:
– Forms non-conductive, water-repellent barrier
– Penetrates crevices and welded joints
– Compatible with painted and bare metal surfaces
– No residue affecting lubrication systems

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5. Recommended Solution

Method	Recommendation	Rationale
RO-RO	✅ Preferred	Enables transport of fully assembled unit; lowest handling risk; faster port turnaround; ideal for high-value, mission-critical equipment. Requires coordination with specialized RO-RO carriers (e.g., Wallenius Wilhelmsen, Grimaldi).
Bulk Cargo	❌ Not Recommended	Weight exceeds typical vessel crane capacity; high disassembly/reassembly costs; elevated risk of structural and hydraulic damage. Only viable for fragmented components.
Flat Rack	⚠️ Conditional Use	Suitable if RO-RO capacity unavailable. Requires disassembly, multi-container stowage (2–3 FR units), and enhanced lashing. Higher exposure to weather; wax protection critical.

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6. Operational Workflow (RO-RO Recommended Path)

1. Pre-shipment:
2. Excavator inspected and prepared (fuel reduced, batteries disconnected)
3. Full wax spray application and documentation

4. Route survey and port clearance coordination

5. Port Handling:

6. Transport to RO-RO terminal via SPMT (Self-Propelled Modular Trailer)

7. Roll-on under own power with guidance team

8. Onboard Securing:

9. Fixed with high-tensile lashing (Grade 2, ISO 1161)

10. Environmental monitoring (humidity, temp) via IoT loggers

11. Arrival & Discharge:

12. Roll-off at destination port with local compliance checks
13. Wax removal and functional inspection before site deployment

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7. Conclusion

For fleet managers and construction enterprises exporting 350-ton excavators from China, RO-RO shipping represents the optimal balance of safety, efficiency, and cost-effectiveness, provided vessel availability aligns with project timelines. Wax spraying is non-negotiable for corrosion prevention and must be integrated into pre-shipment protocols. Flat rack alternatives exist but introduce logistical complexity and higher exposure risk. Bulk cargo is not viable for intact units.

SEA LION International recommends early engagement with RO-RO operators and implementation of certified wax preservation to ensure equipment readiness upon arrival.

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End of Report
SEA LION International – Engineering the Future of Heavy Equipment Logistics