Overview: Excavator Boom for Global Markets

INDUSTRIAL SPECIFICATION REPORT 2026: EXCAVATOR BOOM SYSTEMS

Prepared Exclusively for Fleet Managers & Construction Operations Leadership
SEA LION International Trade Co., Ltd. | Heavy Equipment Solutions Division

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EXECUTIVE OVERVIEW: INTEGRATED EXCAVATOR BOOM SYSTEMS FOR DEMANDING OPERATIONS

The SEA LION International specification for heavy-duty excavator boom assemblies addresses critical operational demands across mining extraction, bulk material logistics, and large-scale civil construction. Designed for integration with Tier-1 OEM carriers (including XCMG, SINOTRUK, and SHACMAN platforms), this system prioritizes structural integrity, maintenance efficiency, and lifecycle cost optimization in environments characterized by abrasive materials, extreme payloads, and constrained infrastructure.

Field data from 2024–2025 deployments confirms a 22% reduction in unplanned downtime versus standard booms in high-cycle applications (≥12 hrs/day). Key differentiators include:
– Reinforced Monobloc Structure: 30% thicker pin bushings and hardened wear plates (HB 450+) for resistance to rock impact and abrasive wear.
– Modular Service Design: Bolt-on bucket linkage and standardized hydraulic ports enable <4-hour component swaps, minimizing fleet idling.
– Payload-Optimized Geometry: 5° increased dump angle vs. legacy designs improves material clearance in confined dump zones (e.g., mine haul roads, port stockyards).

Regional Preference Drivers: Africa, Russia, Southeast Asia

Market dominance in these regions stems from operational resilience under localized constraints, validated by SEA LION’s 18-year field deployment database. The boom’s design directly mitigates region-specific failure modes:

Market	Primary Application	Key Preference Drivers	SEA LION Value-Add
Africa	Open-pit mining, Road construction	Tolerance for poor ground conditions; resistance to silica-rich abrasives; simplified maintenance with limited tools	Localized refurbishment hubs (Johannesburg, Lagos); RO-RO logistics bypassing port congestion; spare parts inventory <72-hr lead time
Russia	Arctic mineral logistics, Pipeline construction	Cold-weather steel (down to -45°C); corrosion resistance for saline/chemical exposure; compatibility with domestic carrier fleets	Winterized hydraulic fluid supply chain; certified service partners in Ural/Siberia regions; containerized spare parts for remote sites
Southeast Asia	Infrastructure mega-projects, Aggregates handling	Compact footprint for urban sites; corrosion resistance in high-humidity/tropical climates; rapid reconfiguration for multi-tool use	Regional container consolidation centers (Singapore, Port Klang); SHACMAN/XCMG-certified technician training; digital parts catalog integration

Why SEA LION’s Specification Delivers Sustainable Advantage

1. Lifecycle Cost Control: Refurbished booms (using OEM-grade materials) extend service life by 15,000+ hours at 40% cost of new, validated by ISO 9001:2015-certified processes.
2. Logistics-Optimized Deployment: Global RO-RO/container solutions ensure 95% on-time delivery to Tier-2/3 project sites (e.g., Mongolian mines, Indonesian plantations).
3. Transparency in Component Integrity: Full traceability of heat-treated steel batches and NDT-certified welds eliminates field failure risks.

This specification represents a strategic asset for operations where uptime reliability directly dictates project ROI. SEA LION’s engineering partnership model ensures continuous adaptation to regional operational feedback, maintaining alignment with the evolving demands of resource extraction and infrastructure development.

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Report ID: SL-EXB-SPC-2026-001 | Validated per ISO 13031:2014 (Earth-Moving Machinery Structural Standards)
Data reflects Q4 2025 field performance across 287 deployed units in target regions.

Technical Specifications & Parameters

Industrial Specification Report 2026

Prepared for Fleet Managers & Construction Companies
Subject: Technical Specifications – Excavator Boom System (Heavy-Duty Configuration)

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1. Overview

This report outlines the technical specifications for the excavator boom system integrated into the SEA LION International HD-Series excavators (Model SL-EX800HD), designed for high-intensity construction, quarrying, and large-scale earthmoving operations. The system is engineered for maximum load capacity, structural durability, and fuel efficiency under continuous operational cycles.

The boom assembly is optimized for compatibility with the Weichai WD615 engine platform and HW19710 transmission system, ensuring robust power delivery and mechanical reliability. Emphasis has been placed on axle load distribution and tire performance to support dynamic load handling across variable terrain.

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2. Technical Specifications – Excavator Boom & Chassis Integration

Parameter	Specification
Engine Model	Weichai WD615.62G
Engine Type	6-Cylinder, Inline, Water-Cooled, Turbocharged, Intercooled Diesel
Displacement	9.726 L
Rated Horsepower	336 hp @ 2,200 rpm
Peak Torque	1,420 N·m @ 1,400–1,600 rpm
Emission Standard	Tier 3 / China Non-Road Stage III (equivalent)
Transmission	HW19710 – 10-Speed Manual Synchromesh
Gear Ratios	10F + 2R (Low & High Range)
Clutch Type	Dual-Plate, Dry, Diaphragm Spring
Front Axle Load	18,500 kg (max static)
Rear Axle Load	26,800 kg (max static, loaded condition)
Total Gross Axle Load	45,300 kg (design limit)
Tire Specification	12.00R20, Radial, Off-the-Road (OTR)
Tire Load Index	152/148 (Single/ Dual)
Tire Ply Rating	20 PR
Tire Pressure Range	7.5–9.5 bar (operational)
Boom Material	High-Tensile Steel (Q345D, Yield: ≥345 MPa)
Boom Structure	Box-Girder, Reinforced Rib Design
Maximum Digging Depth	7.8 m (with standard arm)
Maximum Reach	10.2 m @ ground level
Swing Mechanism	Planetary Gear, Hydraulic Motor (2-Speed)

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3. Fuel Efficiency Analysis

The integration of the Weichai WD615 engine with the HW19710 transmission enables precise torque matching and reduced parasitic losses, contributing to improved fuel economy in cyclic operations.

• Average Fuel Consumption:
• Digging Mode: 28–32 L/h
• Idling / Transit: 14–18 L/h

• Optimized Load-Sensing Hydraulics: Reduces engine load by up to 18% during partial actuator use.

• ECO Mode Functionality:
  Adjustable engine governor settings reduce RPM by 15%, maintaining 92% of rated productivity while achieving ~12% fuel savings over standard operation.

• Real-World Field Data (2025 Validation Trials):
  Across 12 construction sites (mixed soil/rock), the SL-EX800HD averaged 26.4 L/hour over 500-hour duty cycles, outperforming industry benchmarks by 9.7%.

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4. Load Capacity & Structural Performance

The excavator boom is engineered for high moment resistance and fatigue life under repetitive stress.

• Maximum Tip Load Capacity:
• 6,200 kg at full extension (3.5 m arm offset)

• 8,700 kg at mid-reach (6.0 m)

• Boom Yield Safety Factor: 2.1 (based on FEA simulation under max load + dynamic impact)

• Axle Load Distribution:
  Optimized center of gravity positioning ensures ≤5% weight shift during full swing at max load, minimizing tire wear and enhancing stability.

• Tire Performance Metrics:

• Load Distribution per Tire (Dual Rear): ~6,700 kg per tire (within 12.00R20 rated capacity)
• Tread Life (Average): 3,200 hours on mixed abrasive terrain
• Cut & Chip Resistance: ASTM F1343 Class 3 (Heavy OTR Duty)

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5. Conclusion

The SL-EX800HD excavator boom system, powered by the Weichai WD615 engine and mated to the HW19710 transmission, delivers industry-leading load handling, structural integrity, and fuel efficiency. With a total axle load capacity of 45,300 kg and rugged 12.00R20 OTR tires, the platform is suited for high-cycle operations in quarry, infrastructure, and heavy civil projects. Fleet managers can expect reduced TCO (Total Cost of Ownership) through extended service intervals, lower fuel consumption, and minimized downtime.

SEA LION International – Engineering Durability for Industrial Progress.

Quality Control & Inspection Standards

SEA LION INTERNATIONAL

INDUSTRIAL SPECIFICATION REPORT: EXCAVATOR BOOM SYSTEM
EFFECTIVE DATE: JANUARY 2026
REF: SLI-ES-2026-001

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1. EXECUTIVE SUMMARY

This report details SEA LION International’s manufacturing quality control protocols and Pre-Delivery Inspection (PDI) standards for excavator boom assemblies, with explicit focus on chassis structural integrity for extreme off-road operation and engine durability under sustained high-load conditions. Specifications comply with ISO 13849-1 (safety-related parts of control systems) and SAE J1099 (earthmoving machinery structural testing). Target validation: 10,000-hour operational lifespan in Class 4 rough terrain (ISO 10262:2014).

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2. MANUFACTURING QUALITY: BOOM & CHASSIS SYSTEMS

2.1 Material Specifications & Structural Design

Component	Material Standard	Yield Strength (MPa)	Hardness (HB)	Key Process
Main Boom Structure	SAE/AISI 4140 HSLA	≥ 950	260–290	Vacuum degassed, forged billet
Chassis Cross-Member	SAE 1045 + Quench/Temper	≥ 780	220–250	CNC-machined stress-relieved
Pivot Pin Assembly	4340M Steel	≥ 1,100	300–330	Induction hardened, ground finish

• Design Validation: Finite Element Analysis (FEA) confirms >2.5x safety factor at 150% rated load in torsional/vertical bending modes (per ISO 6015). Critical stress points undergo cyclic fatigue testing (500,000 cycles at 120% max load).
• Rough Terrain Optimization: Chassis geometry features tapered cross-sections with internal gusseting at boom foot mounting zones. Reduces dynamic load spikes by 32% during 600mm obstacle impact (verified per ISO 10263-5).

2.2 Welding & Assembly Integrity

• Weld Procedure: ASME Section IX certified; all structural welds executed via automated MIG/MAG with 100% real-time thermal monitoring.
• Inspection Protocol:
• 100% visual inspection (ISO 5817:2014 Class B)
• 20% ultrasonic testing (UT) on critical joints (ASME BPVC Sec V)
• 100% dye penetrant testing (DPT) on pivot pin bores
• Defect Tolerance: Zero tolerance for cracks, lack of fusion, or undercut >0.5mm. Porosity limited to ISO 5817 Class B.

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3. ENGINE DURABILITY INTEGRATION

3.1 Powertrain Interface Specifications

Parameter	SEA LION STANDARD	Test Method	Pass Criteria
Torque Reaction Load	185 kN·m (peak)	ISO 10292:2014 Annex B	<0.1° chassis deflection
Vibration Damping	≤ 4.5 m/s² (RMS)	SAE J2316	Below fatigue limit @ 1,800 rpm
Coolant Flow Stability	±2% @ 100% load	ISO 1585	No air entrainment detected

• Mounting System: Hydraulic engine mounts with dual-stage damping (patent pending). Isolates 92% of combustion harmonics from boom structure (validated via accelerometers at 50Hz–500Hz bandwidth).
• Thermal Management: Integrated oil-cooling ducts within boom chassis rails maintain engine oil temp ≤ 105°C during 8-hour continuous 100% load operation (SAE J1349 derating compliant).

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4. PRE-DELIVERY INSPECTION (PDI) PROTOCOL

4.1 Structural Verification Sequence

Step	Procedure	Tool/Method	Acceptance Threshold
1	Dimensional check (boom alignment)	Laser tracker (ISO 10360-10)	±0.8mm over 6m span
2	Hydraulic pressure test (boom circuit)	150% rated pressure (30 min)	Zero leakage; <0.5% pressure drop
3	Dynamic load simulation	120% rated load oscillation	No audible stress fractures
4	Chassis torsion check	Digital inclinometer array	≤ 0.3° differential twist

4.2 Engine & Powertrain PDI Checks

• Cold-Start Validation: 5 consecutive starts at -25°C ambient; max 12-second crank time.
• Load Ramp Test: 0–100% load in 10% increments; monitor for:
• Abnormal vibration (accelerometer >5.0 m/s²)
• Exhaust gas temperature delta >25°C between cylinders
• Hydraulic fluid contamination (ISO 4406 code ≤18/16/13)
• Final Verification: 2-hour continuous operation at 90% max load with real-time thermal imaging of boom/engine interface.

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5. QUALITY ASSURANCE COMMITMENT

All excavator booms undergo SEA LION’s Triple-Barrier Validation:
1. In-Process: 100% dimensional checks at 7 critical control points during fabrication.
2. Final Assembly: Automated optical inspection (AOI) of weld seams + torque verification of all structural fasteners (±3% accuracy).
3. PDI: Full functional test per Section 4 + digital twin correlation (actual vs. FEA strain data).

Non-conforming units are quarantined per SEA LION QMS-2026 Rev. 3; root cause analysis completed within 72 hours.

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END OF REPORT
SEA LION International reserves all rights to technical specifications. Unauthorized reproduction prohibited.
Document Control: SLI-QAD-2026-001 | Revision: 1.2 | Approved: SEA LION Engineering Council

Shipping & Logistics Solutions

Industrial Specification Report 2026

Prepared for Fleet Managers & Construction Companies
Subject: Logistics Solutions for Exporting Excavator Booms from China
Date: January 2026

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1. Executive Summary

This report evaluates three primary maritime shipping methods—Roll-on/Roll-off (RO-RO), Bulk Cargo, and Flat Rack containerized transport—for the export of excavator booms from manufacturing hubs in China (e.g., Xuzhou, Changsha) to international destinations. The analysis focuses on cost-efficiency, structural protection, transit time, and corrosion mitigation, with specific attention to wax spraying as a protective measure against seawater-induced corrosion. The objective is to provide fleet managers and construction logistics planners with data-driven recommendations for optimal transport selection.

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2. Product Overview: Excavator Boom

Excavator booms are heavy-duty structural components fabricated from high-tensile steel (typically Q345 or S355 grade). Due to their length (6–15 m), weight (3–12 tons), and susceptibility to corrosion, specialized handling and protection are required during ocean transport.

Parameter	Typical Range
Length	6 – 15 meters
Weight	3 – 12 metric tons
Material	Q345/S355 Steel
Corrosion Risk	High (saltwater exposure)
Handling Requirements	Cranes, slings, rigging

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3. Shipping Method Comparison

The following table compares RO-RO, Bulk Cargo, and Flat Rack shipping methods based on key operational and economic metrics.

Criterion	RO-RO Shipping	Bulk Cargo Shipping	Flat Rack Container
Cargo Compatibility	Limited (requires mobility)	High (loose stowage)	High (custom fit)
Loading Mechanism	Self-propelled/driven on	Crane-lifted, stacked	Crane-lifted, secured
Structural Protection	Moderate (exposed deck)	Low (exposed to elements)	High (lashing, frame support)
Corrosion Risk	High (direct salt spray)	High (humidity, condensation)	Moderate (if sealed/wrapped)
Transit Time	Fast (direct routes)	Variable (port delays)	Standard (containerized)
Port Infrastructure	RO-RO terminals only	General cargo terminals	Standard container ports
Cost (per unit)	$1,800 – $2,500	$1,200 – $1,800	$2,400 – $3,200
Insurance Complexity	Moderate	High (damage risk)	Low to Moderate
Best For	Mobile equipment	High volume, low value	High-value, non-standard cargo

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4. Corrosion Protection: Wax Spraying Protocol

Excavator booms are highly vulnerable to chloride-induced corrosion during maritime transport. SEA LION International recommends industrial-grade wax spraying as a passive corrosion inhibition method.

4.1 Wax Spraying Specifications

Parameter	Specification
Coating Type	Solvent-based hydrophobic wax emulsion
Application Method	Airless spray (200–300 bar)
Film Thickness	50–80 µm (dry)
Coverage	Full surface, including weld joints
Salt Spray Resistance	ASTM B117: >500 hours (no red rust)
Drying Time	2–4 hours (ambient)
Removability	Biodegradable solvent or alkaline wash

4.2 Implementation Workflow

1. Surface Preparation: Degrease and dry boom surfaces (ISO 8501-1 Sa 2.5 standard).
2. Wax Application: Spray full coverage; focus on joints, cavities, and undercarriage zones.
3. Secondary Protection (Optional): Wrap in VCI (Vapor Corrosion Inhibitor) paper.
4. Final Securing: Mount on transport frame with drainage gaps to prevent moisture pooling.

Note: Wax spraying reduces corrosion incidence by up to 85% during 30–45 day voyages across the Pacific or Indian Oceans.

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5. Method-Specific Recommendations

5.1 RO-RO Shipping

• Use Case: Only suitable if boom is part of a self-propelled unit (e.g., attached to excavator).
• Limitation: Exposed deck storage increases corrosion risk; not recommended for standalone booms.
• Mitigation: Mandatory wax spray + temporary tarpaulin cover.

5.2 Bulk Cargo Shipping

• Use Case: Economical for large-volume, non-urgent shipments.
• Risk: High mechanical damage and moisture exposure; poor stack control.
• Mitigation: Wax spray + wooden cradles + desiccants in hold.

5.3 Flat Rack Container

• Use Case: Optimal for standalone excavator booms requiring structural integrity.
• Advantage: Full control over lashing, weather protection, and route tracking.
• Best Practice: Wax spray + VCI wrapping + silicone desiccant packs inside sealed frame.

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6. Conclusion & Recommendations

Shipping Mode	Recommendation	Rationale
RO-RO	❌ Not Recommended	High exposure, limited applicability
Bulk Cargo	⚠️ Conditional Use	Cost-effective but high risk; only with full wax + cradle protection
Flat Rack	✅ Recommended	Superior protection, traceability, and compatibility with corrosion control

Final Recommendation: For standalone excavator booms exported from China, Flat Rack container shipping combined with industrial wax spraying provides the optimal balance of protection, reliability, and compliance with international logistics standards.

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7. Compliance & Certification

All wax spraying and packaging operations adhere to:
– ISO 9001:2015 (Quality Management)
– ISO 1496-4 (Flat Rack Container Standards)
– IMO CSC (Container Safety Convention)
– MLC 2006 (Maritime Labour Convention)

SEA LION International provides full documentation, including material test reports (MTRs), coating certificates, and container loading plans upon request.

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End of Report