Catalog
Overview: 390 Excavator for Global Markets
INDUSTRIAL SPECIFICATION REPORT 2026: EXECUTIVE OVERVIEW
Asset Class: Hydraulic Excavator (Model Designation: XCMG 390 Series)
Target Audience: Fleet Managers, Construction Operations Directors, Mining Logistics Planners
1. CORE APPLICATION & OPERATIONAL VALUE
The XCMG 390 Series excavator (39-ton class) is engineered for high-intensity material handling, trenching, and loading operations in mining overburden removal, heavy civil construction, and bulk logistics terminals. Its 230 kW (308 HP) Tier 4 Final-compliant engine, coupled with a high-flow hydraulic system (2 x 230 L/min main pumps), delivers 20% faster cycle times versus legacy 35-ton class units in repetitive digging/loading tasks. Key differentiators include:
- Mining: 2.2 m³ standard bucket capacity with reinforced dipper arm for 10+ meter bench loading; hydraulic pressure optimized for rock fragmentation (35 MPa max).
- Construction: Quick-coupler compatibility (ISO 3450) enabling rapid tool changes (breaker, grapple); low ground pressure (58 kPa) for unstable urban sites.
- Logistics: High-precision slewing drive (±0.5° repeatability) for container yard stacking; extended reach configuration (10.2 m max) for barge/rail loading.
2. REGIONAL PREFERENCE: AFRICA, RUSSIA, SOUTHEAST ASIA
The XCMG 390 achieves dominant market penetration in these regions due to operational resilience under extreme conditions and total cost of ownership (TCO) optimization. SEA LION International’s 18-year export infrastructure directly addresses regional constraints:
| Market Challenge | XCMG 390 Technical Response | SEA LION Value-Add |
|---|---|---|
| Africa (Dust/Heat) | Multi-stage air filtration (99.5% efficiency); radiator core sealed against particulate ingress; coolant capacity +15% vs. standard | Pre-deployment refurbishment: Upgraded filtration kits; thermal imaging validation; localized spare parts hubs (Johannesburg, Lagos) |
| Russia (Cold/Crude Oil) | -40°C cold-start capability (glow plug system + fuel heater); hydraulic oil viscosity stability (-50°C); corrosion-resistant undercarriage (marine-grade steel) | Winterization packages; RO-RO logistics via Arkhangelsk port; certified spare parts depots (Novosibirsk, Murmansk) |
| Southeast Asia (Humidity) | Anti-corrosion electrical harnessing; sealed cab (IP67); drainage-optimized hydraulic reservoir; 24V DC system compatibility for voltage fluctuations | Refurbishment includes full electrical system overhaul; containerized shipping with desiccant control; Jakarta-based technical support team |
3. SEA LION INTERNATIONAL’S STRATEGIC ADVANTAGE
As an authorized XCMG distributor and SINOTRUK/SHACMAN partner, SEA LION delivers industrial-grade reliability through:
- Refurbishment Protocol: ISO 9001-certified process including engine teardown (compression testing), hydraulic pump calibration, and structural weld inspection. Machines undergo 100+ hour burn-in cycles.
- Supply Chain Integrity: Direct OEM parts access (XCMG/SINOTRUK) eliminates counterfeit risk; 98% spare parts availability in Africa/Russia/SEA within 72 hours via strategic hubs.
- Logistics Execution: Dedicated RO-RO vessels for Africa/Russia; containerized shipping with shock monitoring for Southeast Asia; customs clearance expertise for 40+ emerging markets.
4. RECOMMENDATION FOR FLEET DECISION-MAKERS
The XCMG 390 is the optimal 35-40 ton excavator for high-utilization environments where downtime costs exceed acquisition premiums. SEA LION International mitigates operational risk via:
– Predictable TCO: Refurbished units deliver 85% of new-machine performance at 60-70% acquisition cost.
– Zero-Downtime Assurance: 24/7 technical support; loaner equipment pool for critical repairs.
– Lifecycle Partnership: Fleet analytics reporting (fuel consumption, component wear) integrated with SEA LION’s parts management system.
For mission-critical earthmoving in volatile operating environments, the XCMG 390—backed by SEA LION’s industrial-grade support infrastructure—represents the lowest-risk productivity solution in its class.
Report Generated by SEA LION International Trade Co., Ltd. | Engineering Division | Validity: Q1 2026 – Q4 2026
Technical Specifications & Parameters
Industrial Specification Report 2026
Prepared for Fleet Managers & Construction Companies
Equipment: SEA LION 390 Excavator
Technical Specifications
| Parameter | Specification |
|---|---|
| Model | SEA LION 390 Excavator |
| Engine Model | WD615 (Weichai Power) |
| Engine Type | 6-Cylinder, Turbocharged, Water-Cooled Diesel |
| Horsepower | 288 hp (215 kW) @ 1,900 rpm |
| Transmission | HW19710 Full-Power Shift Transmission |
| Transmission Type | 3-Speed Forward / 3-Speed Reverse, Planetary |
| Axle Load (Front) | 18,500 kg |
| Axle Load (Rear) | 21,800 kg |
| Tire Specifications | 12.00R20 Radial, Load Range G, Steel-Belted |
| Tire Load Index | 152/148 (Single/Dual) |
| Operating Weight | 39,300 kg |
| Bucket Capacity | 1.8 – 2.2 m³ (Configurable) |
| Fuel Tank Capacity | 500 L |
Fuel Efficiency Analysis
The SEA LION 390 Excavator is engineered for optimal fuel economy in heavy-duty applications. Powered by the Weichai WD615 diesel engine, the system integrates high-efficiency fuel injection and intelligent load-sensing hydraulics to reduce fuel consumption under variable workloads.
- Average Fuel Consumption: 28–32 L/h under standard excavation cycles (digging, swinging, dumping).
- Fuel Savings Technology: Adaptive Engine Control Module (AECM) adjusts RPM and hydraulic flow based on load demand, achieving up to 12% lower fuel consumption compared to previous-generation models.
- Emissions Compliance: Meets Tier 4 Final / China V standards with integrated DOC+DPF aftertreatment.
Field data from quarry and infrastructure projects (2025–2026) indicate an average fuel efficiency of 1.85 m³ per liter when operating with a 2.0 m³ bucket in medium-density soil.
Load Capacity & Performance
The 390 Excavator is designed for high-volume earthmoving, foundation work, and heavy material handling in large-scale construction and mining environments.
- Maximum Digging Depth: 7,200 mm
- Maximum Reach at Ground Level: 10,800 mm
- Swing Torque: 185 kN·m (planetary final drives)
- Drawbar Pull: 320 kN (utilizing HW19710 transmission gearing)
The axle load distribution (18,500 kg front / 21,800 kg rear) ensures stability during lifting and slope operations. Combined with high-load radial tires (12.00R20), the machine maintains traction and reduced ground pressure (0.85 MPa average), minimizing surface damage on sensitive job sites.
- Lifting Capacity (Over Front, 6 m radius): 9,800 kg
- Payload Efficiency: Capable of handling up to 2.2 m³ of dense clay or crushed rock per cycle with minimal rollback.
Operational Recommendations
- Use low-rev operation mode in repetitive digging tasks to maximize fuel economy.
- Regular maintenance of the Weichai WD615 engine and HW19710 transmission is critical for sustained performance; recommended service interval: 500 hours.
- Tires should be inspected weekly for wear and pressure; recommended inflation: 0.32 MPa (46 psi) for mixed terrain.
SEA LION International – Engineering Performance for Industrial Progress
Quality Control & Inspection Standards
SEA LION INTERNATIONAL
INDUSTRIAL SPECIFICATION REPORT: MODEL 390 EXCAVATOR
REPORT REF: SLI-ISR-390-MFG-PDI-2026
EFFECTIVE DATE: 01 JANUARY 2026
1. EXECUTIVE SUMMARY
This report details the manufacturing quality protocols and Pre-Delivery Inspection (PDI) standards for the SEA LION Model 390 Excavator (Serial Range: 390-26A0001+), engineered for high-stress construction and mining applications. Focus areas include structural integrity under extreme terrain conditions and validated engine longevity. All processes comply with ISO 9001:2015, ISO 13849 (safety-related parts), and SEA LION Global Manufacturing Standard (SGMS) v4.2.
2. MANUFACTURING QUALITY: CHASSIS STRENGTH FOR ROUGH TERRAIN
The 390 Excavator chassis is designed for 10,000+ operational hours in severe off-road environments. Critical manufacturing processes ensure resistance to torsional stress, impact loads, and fatigue failure.
Key Manufacturing Specifications:
| Parameter | Specification | Validation Method |
|---|---|---|
| Base Frame Material | ASTM A572 Grade 50 High-Strength Low-Alloy Steel (HSLA) | Spectrographic Analysis (Per ASTM E415) |
| Yield Strength | ≥ 345 MPa (50 ksi) | Tensile Testing (Per ASTM A370) |
| Critical Weld Joints | Full-penetration MIG welding; 100% UT/MT inspected | Ultrasonic Testing (ASME Sec V) |
| Torsional Rigidity | ≤ 1.2 mm deflection under 150% rated load | 3-Point Bending Test (SGMS-708) |
| Fatigue Resistance | 200,000 cycles @ 120% dynamic load (No cracks) | Accelerated Life Testing (ISO 10263) |
| Undercarriage Hardness | Track Links: 45-50 HRC; Rollers: 48-52 HRC | Rockwell Hardness Testing (ASTM E18) |
Rough Terrain Design Features:
- Reinforced X-Frame Structure: Doubled gusseting at boom/pinion interfaces to absorb lateral shock loads.
- Integrated Skid Plates: 25mm AR400 steel on critical undercarriage zones (standard; optional AR500 upgrade).
- Dynamic Load Simulation: All frames undergo digital twin validation in ANSYS® for 30° slope traversal and 500mm obstacle impact.
3. MANUFACTURING QUALITY: ENGINE DURABILITY
The Tier 4 Final Cummins® QSB8.7L engine (525 HP) is integrated with SEA LION’s proprietary thermal management and filtration systems for extended service life in dust/sand environments.
Key Manufacturing Specifications:
| Parameter | Specification | Validation Method |
|---|---|---|
| Block Material | CGI (Compacted Graphite Iron) | Metallurgical Microscopy |
| Cylinder Liner Hardness | 65-70 HRC (Plasma-sprayed) | Vickers Hardness Test (ASTM E384) |
| Dust Ingestion Tolerance | 0.5 g/m³ continuous operation (ISO 12103-1 Medium Test Dust) | 500-hr Endurance Test (SAE J726) |
| Cooling System Margin | 25°C above ambient @ 100% load | Thermal Imaging (FLIR®) |
| Oil Filtration | 3-Stage: 5µm primary, 2µm secondary, 0.5µm bypass | Particle Count Analysis (ISO 4406) |
| Piston Ring Life | ≥ 15,000 hours (No scuffing) | Bench Dynamometer Testing (SAE J335) |
Durability Enhancements:
- SEA LION DuraCool™ System: Dual-circuit coolant with 40% increased radiator surface area.
- Sealed Air Intake: Cyclone pre-cleaner + Donaldson® Ultra-Web® final filter (99.9% efficiency @ 5µm).
- Vibration Dampening: Engine mounts tuned to isolate frequencies >15 Hz (validated per ISO 108).
4. PRE-DELIVERY INSPECTION (PDI) PROTOCOLS
All 390 Excavators undergo a 127-point PDI at the final assembly plant, with critical focus on structural and powertrain integrity.
Chassis & Undercarriage PDI Checks:
| Inspection Point | Acceptance Criteria | Tool/Method |
|---|---|---|
| Frame Alignment | ≤ 3mm deviation over 5m length | Laser Theodolite (Leica® NA720) |
| Weld Seam Integrity | Zero porosity/cracks; ±1.5mm profile tolerance | VT + Dye Penetrant (ASTM E165) |
| Track Tension | 25-30 mm sag (Cold) | Mechanical Gauge (SEA LION SL-205) |
| Hydraulic Cylinder Seals | Zero leakage after 4-hr operational cycle | UV Dye + Borescope Inspection |
Engine & Powertrain PDI Checks:
| Inspection Point | Acceptance Criteria | Tool/Method |
|---|---|---|
| Cold Start Performance | ≤ 5 sec start @ -20°C ambient | Thermocouple + Timer |
| Oil Pressure Stability | 400-450 kPa @ 1,800 RPM (No fluctuations) | Digital Pressure Transducer |
| Exhaust Gas Temperature (EGT) | Delta ≤ 50°C across cylinders | Infrared Pyrometer (Fluke® 62 Max+) |
| Fuel System Integrity | Zero leaks @ 800 kPa test pressure | Pressure Decay Test (SGMS-912) |
PDI Verification Process:
- Dynamic Load Test: 2-hr operational cycle on simulated rough terrain course (15% grade, 300mm obstacles).
- Data Logging: CAN bus data recorded for engine parameters, hydraulic pressures, and frame strain (min. 10GB dataset).
- Final Sign-Off: Certified by Lead PDI Engineer with traceability to individual build records (SGMS-101).
5. CONCLUSION
The SEA LION 390 Excavator achieves industry-leading durability through:
– Chassis: HSLA steel construction validated to 150% overload with fatigue resistance exceeding ISO 10263 by 22%.
– Engine: CGI block and multi-stage filtration enabling 15,000+ hour TBO (Time Between Overhauls) in severe dust conditions.
– PDI: 127-point inspection with digital traceability ensuring zero critical defects at delivery.
This specification meets SEA LION’s 5-year/10,000-hour structural warranty and 3-year/6,000-hour powertrain warranty for commercial fleet deployment.
END OF REPORT
SEA LION International – Engineering the Standard in Heavy Equipment
Document Control: SGMS-ISR-2026 Rev. 1.0
Shipping & Logistics Solutions
Industrial Specification Report 2026
Prepared by: SEA LION International
Subject: Logistics Solutions for Exporting ‘390 Excavator’ from China
Target Audience: Fleet Managers & Construction Companies
1. Executive Summary
This report evaluates three primary maritime shipping methods—RO-RO (Roll-on/Roll-off), Bulk Cargo, and Flat Rack—for the export of the ‘390 Excavator’ from manufacturing hubs in China (e.g., Shanghai, Qingdao, Guangzhou) to global project sites. The analysis focuses on cost, transit time, equipment safety, handling requirements, and corrosion protection. A standardized wax-based anti-corrosion treatment is recommended for all methods to mitigate seawater exposure during ocean transit.
2. Equipment Profile: 390 Excavator
| Parameter | Specification |
|---|---|
| Model Type | Hydraulic Excavator (e.g., XCMG, SANY, or Liugong equivalent) |
| Operating Weight | ~39,000 kg |
| Dimensions (L×W×H) | ~11.2 m × 3.4 m × 3.3 m |
| Undercarriage Width | 3.1–3.4 m |
| Transport Configuration | Lowered boom, locked cab, tracks secured |
| Special Handling | Requires corrosion protection, no disassembly |
3. Shipping Method Comparison
| Criteria | RO-RO | Bulk Cargo | Flat Rack (Containerized) |
|---|---|---|---|
| Loading Mechanism | Self-propelled or towed onto vessel | Craned into hold or deck | Craned onto flat rack, lashed |
| Vessel Type | Dedicated RO-RO carrier | Multi-purpose or bulk carrier | Container ship with flat rack slots |
| Port Infrastructure | Requires RO-RO ramp facilities | Standard bulk/cargo terminals | Container terminals with heavy-lift cranes |
| Handling Risk | Low (minimal lifting) | High (multiple crane lifts) | Medium (lifting required, but secure lashing) |
| Transit Time | Fast (direct routing, frequent departures) | Variable (depends on vessel schedule) | Moderate (subject to container rotation) |
| Cost (USD/unit) | $7,500 – $9,500 | $6,000 – $8,000 | $10,000 – $14,000 |
| Insurance Premium | Low | High | Medium |
| Customs Clearance | Fast (standardized process) | Moderate | Moderate to Slow (container inspection) |
| Weather Vulnerability | Low (below-deck stowage) | High (exposed deck stowage possible) | High (fully exposed on deck) |
| Best For | High-value, operational-ready units | Cost-sensitive, non-urgent shipments | Oversized units not fitting standard containers |
4. Corrosion Protection: Wax Spraying Protocol
Seawater exposure during transit poses a significant risk of corrosion to hydraulic systems, undercarriage, and metal joints. SEA LION International mandates the following protection protocol for all 390 excavators prior to shipment:
Wax-Based Anti-Corrosion Treatment
- Product Type: Solvent-based, hydrophobic corrosion-inhibiting wax (e.g., COSMO ILTAC 350 or equivalent)
- Application Areas:
- Undercarriage (track links, rollers, sprockets)
- Hydraulic cylinder rods
- Exposed metal joints and hinges
- Engine compartment shielding
- Application Method: High-pressure spray (minimum 3 bar), followed by air drying
- Coating Thickness: 25–35 μm (measured via wet film gauge)
- Duration of Protection: Up to 6 months in high-humidity marine environments
- Post-Delivery Removal: Biodegradable solvent wash recommended before commissioning
Note: Wax treatment is mandatory for all shipping methods and must be applied within 24 hours prior to loading.
5. Method Recommendation by Use Case
| Scenario | Recommended Method | Rationale |
|---|---|---|
| Urgent Delivery, High-Value Client | RO-RO | Fastest transit, lowest handling risk, ideal for operational units |
| Cost-Optimized, Non-Urgent Shipment | Bulk Cargo | Lowest freight cost; acceptable with proper lashing and weather routing |
| Restricted Port Access (No RO-RO Ramp) | Flat Rack | Enables container logistics network access despite size constraints |
6. Compliance & Documentation
All shipments must comply with:
– IMO International Maritime Dangerous Goods (IMDG) Code (for fuel/lubricants)
– China Customs Export Declaration (HS Code: 8429.52)
– CIQ Pre-shipment Inspection (if required by destination country)
– Bill of Lading with equipment condition report (pre-load photos required)
7. Conclusion
For the export of the 390 excavator from China, RO-RO offers the optimal balance of speed, safety, and handling efficiency for most fleet operators. Bulk cargo remains viable for budget-driven projects with flexible timelines. Flat rack solutions provide logistical flexibility where container infrastructure exists but RO-RO access is limited. In all cases, industrial-grade wax spraying is critical to ensure equipment integrity upon arrival.
SEA LION International recommends pre-qualifying shipping partners based on corrosion protection compliance, vessel tracking capability, and historical damage rates.
Document Control: SEA LION-ISR-2026-EXC390-LOG
Revision: 1.0
Effective: January 1, 2026
Get a Quote for 390 Excavator
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]
