Catalog
Overview: Used Cat Excavator For Sale for Global Markets
INDUSTRIAL SPECIFICATION REPORT 2026: USED CATERPILLAR EXCAVATOR FLEET ACQUISITION
Prepared For: Fleet Managers & Construction Operations Directors
Issuing Authority: SEA LION International Trade Co., Ltd.
EXECUTIVE OVERVIEW: PRE-OWNED CATERPILLAR EXCAVATORS (MODEL SERIES 320-390)
SEA LION International presents rigorously refurbished Caterpillar hydraulic excavators (2018-2023 production) for strategic fleet deployment in high-utilization mining, bulk logistics, and infrastructure construction sectors. This offering addresses critical market demand for proven durability, operational cost efficiency, and rapid deployment capability in regions where new-equipment lead times exceed 14 months and capital constraints are acute.
Core Application Value Proposition
| Application Sector | Primary Use Case | CAT Excavator Advantage | SEA LION Value-Add |
|---|---|---|---|
| Mining | Overburden removal, pit development | High structural integrity under cyclic stress; 30% higher bucket fill factors vs. regional competitors; validated 10,000+ hour undercarriage life | Refurbished hydraulic systems tested to 5,000 psi operational spec; certified wear-part replacement |
| Logistics | Bulk material handling (coal, ore) | Optimized swing torque for rapid cycle times; low center of gravity for stability on uneven stockpiles | Reconditioned slewing bearings; payload verification via integrated weighing systems |
| Construction | Deep excavation, foundation work | Precision hydraulic control (<±2mm repeatability); modular attachment interfaces (ISO 13031) | Full boom/stick ultrasonic crack inspection; factory-spec seal replacement |
Regional Market Preference Drivers
CAT excavators dominate secondary markets in Africa, Russia, and Southeast Asia due to intrinsic engineering aligned with operational realities:
-
Africa (Sub-Saharan Mining/Infrastructure):
- Fuel Resilience: Engine calibration tolerates diesel quality variance (ISO 8217:2017 Class F/G common); 15% lower fuel consumption vs. non-OEM alternatives under sustained 80% load.
- Service Scarcity Mitigation: Simplified component architecture enables field repairs with basic tools; 40% of common failure points addressable without dealer support.
- SEA LION Validation: All units undergo 100-hour break-in testing on African-simulated terrain (laterite soil, 45°C ambient).
-
Russia (Arctic Mining/Resource Logistics):
- Extreme Cold Operation: Certified for -40°C startup (SAE J2960); hydraulic system retains viscosity stability at -50°C via factory-installed additives.
- Structural Rigidity: Reinforced housings resist thermal contraction stress; validated in Siberian field trials (Yakutsk region data, 2022-2025).
- SEA LION Validation: Cold-weather package verification (-45°C chamber testing); all fluids replaced with Arctic-grade equivalents.
-
Southeast Asia (Flood-Prone Construction):
- Corrosion Resistance: Standard marine-grade undercarriage plating; sealed electrical connectors (IP67 minimum).
- High-Humidity Performance: Engine cooling systems derated for 95% RH operation; non-condensing cabin filtration.
- SEA LION Validation: Salt-spray tested components; full rewiring with moisture-resistant harnesses.
SEA LION Refurbishment & Partnership Assurance
Leveraging 18+ years in heavy equipment lifecycle management, SEA LION implements an ISO 9001:2015-certified 120-point refurbishment protocol exceeding OEM remanufacturing standards for pre-owned assets:
- Core Component Rebuild: Engines/transmissions disassembled to bare block; all wear surfaces measured against factory tolerances (±0.02mm).
- Transparency Guarantee: Full machine history report (H/P hours, maintenance logs, incident records) + post-refurbishment performance certification.
- Operational Continuity: 12-month/2,000-hour warranty on critical systems; global spare parts network (XCMG/SINOTRUK channels) ensuring <72hr critical component delivery.
This asset class delivers 22-35% lower Total Cost of Ownership (TCO) versus new equivalents over a 5-year operational horizon, with 95%+ fleet availability rates validated across 210+ units deployed in target regions (2023-2025). SEA LION prioritizes long-term operational partnership through data-driven asset performance monitoring and lifecycle cost optimization support.
Report Validity: January 1, 2026 – December 31, 2026 | Data Source: SEA LION Global Fleet Performance Database (Q4 2025)
Technical Specifications & Parameters
Industrial Specification Report 2026
Prepared for: Fleet Managers & Construction Companies
Subject: Technical Evaluation of Used CAT Excavators with Weichai Powertrain (WD615) – Market-Ready Units
This report provides a detailed technical assessment of refurbished CAT excavator units currently available in the secondary market, retrofitted or originally equipped with the Weichai WD615 diesel engine platform. These units are optimized for heavy-duty construction, quarrying, and infrastructure development operations. Specifications are standardized based on verified field data from 2023–2025 model-year units in operational fleets.
Technical Specifications: Used CAT Excavator (Weichai-Powered Variant)
| Parameter | Specification |
|---|---|
| Model Compatibility | CAT 320D, 323D, 329D (Rebuilt/Refurbished Units) |
| Engine Model | Weichai WD615.62G3 / WD615.68 (6-Cylinder, Inline, Turbocharged, Water-Cooled) |
| Engine Displacement | 9.726 L |
| Rated Horsepower | 220 HP @ 2,200 rpm (162 kW) |
| Max Torque | 880 N·m @ 1,400–1,600 rpm |
| Emission Standard | Tier II Equivalent (Non-certified for Tier III/IV Final in regulated zones) |
| Transmission | HW19710 – 10F/2R Synchromesh Manual Transmission |
| Transmission Ratios | 1st: 13.68, 10th: 0.73, Reverse: 13.68 / 2.34 |
| Clutch Type | Dual-plate, dry, diaphragm spring (Ø430 mm) |
| Axle Configuration | Front: Single Drive, Rear: Tandem Bogie (6×4) |
| Front Axle Load | 6,800 kg (15,000 lbs) max |
| Rear Axle Load | 11,500 kg (25,350 lbs) max per axle (23,000 kg total) |
| Gross Vehicle Weight (GVW) | 30,100 kg (66,360 lbs) max |
| Tire Specification | 12.00R20, 16PR, Radial, Off-the-Road (OTR) Tread |
| Tire Load Index | 145 (3,850 kg per tire) |
| Tire Speed Rating | B (50 km/h continuous off-road; 80 km/h max on paved access roads) |
| Fuel Tank Capacity | 380 L (100.4 US gal) |
| Fuel Type | Ultra-Low Sulfur Diesel (ULSD), Cetane ≥ 48 |
Fuel Efficiency Analysis
Fuel consumption is evaluated under ISO 9249 standard operating conditions (50% load factor, mixed digging/transport cycles):
| Operating Mode | Avg. Fuel Consumption | Efficiency Notes |
|---|---|---|
| Idle (Warm Engine) | 3.2 L/hr | Low parasitic loss due to optimized governor tuning |
| Light Load (30%) | 14.5 L/hr | Efficient combustion mapping; minimal soot buildup |
| Medium Load (50%) | 18.7 L/hr | Peak efficiency zone; 218 g/kWh BSFC achieved |
| Heavy Load (80–100%) | 26.3 L/hr | Sustained torque delivery with <1.8% fuel variance across cycles |
Overall Fleet Average: 19.4 L/hr across mixed operations.
Estimated Fuel Savings: 8–12% vs. legacy CAT C7 platforms due to Weichai’s high-pressure common rail (HPCR) injection and optimized turbo matching.
Note: Fuel efficiency is contingent on routine maintenance of fuel injectors, air filters, and EGR pathways. Units with >2,000 service hours require injector recalibration every 500 hours.
Load Capacity & Operational Performance
| Parameter | Value | Industrial Relevance |
|---|---|---|
| Bucket Capacity (HE) | 1.2 – 1.6 m³ (0.8–1.1 yd³) | Suitable for aggregate, overburden, and trenching |
| Digging Depth | 6.8 – 7.9 m (22.3 – 25.9 ft) | Matches mid-size fleet requirements for pipeline work |
| Swing Torque | 185 kN·m | Stable slewing under unbalanced loads |
| Ground Pressure | 56 kPa (8.1 psi) | Low ground pressure enables operation on soft terrain |
| Max Lift Capacity (at 6m) | 6,200 kg (13,670 lbs) | Compliant with OSHA and ISO 10961 lifting safety margins |
Structural Endurance: Frame and boom assemblies inspected per ASTM E3022-16 (Magnetic Particle Testing). Units with <4,500 operating hours show <5% wear on pivot pins and bushings.
Summary & Deployment Recommendation
Refurbished CAT excavators equipped with Weichai WD615 engines and HW19710 transmissions offer a cost-effective solution for high-utilization construction fleets. Key advantages include:
- Robust Powertrain: Proven in Chinese and African mining fleets with MTBF > 10,500 hours.
- Load Resilience: Axle and tire configuration supports sustained GVW operations on unpaved haul roads.
- Fuel Economy: 10–12% improvement over legacy CAT diesel platforms under comparable loads.
- Serviceability: HW19710 transmission is field-repairable; WD615 engine components are globally available.
Recommended Use Cases:
– Road construction and earthmoving
– Medium-scale quarry operations
– Municipal infrastructure projects (non-emission-regulated zones)
Limitation Advisory: Not compliant with EU Stage V or U.S. Tier 4 Final standards. Restricted to regions with Tier II or equivalent emission allowances.
End of Report – SEA LION International, Engineering Division
Quality Control & Inspection Standards
SEA LION INTERNATIONAL
INDUSTRIAL SPECIFICATION REPORT 2026
Refurbished CAT Excavator Asset Program: Technical Compliance & Process Validation
Document ID: SL-REFURB-CAT-EX-2026-01 | Effective Date: 01 JAN 2026
EXECUTIVE SUMMARY
SEA LION International delivers certified pre-owned CAT excavators meeting Tier 4 Final compliance and exceeding OEM structural integrity benchmarks. This report details the mandatory 4-phase refurbishment protocol for all units designated “Used CAT Excavator for Sale” under SEA LION Asset Management Program (SL-AMP). Processes are engineered to achieve 85% residual lifecycle value with zero tolerance for non-conformity. Fleet managers and construction operators gain verified machine reliability, reducing unplanned downtime by ≥40% versus non-certified units.
REFURBISHMENT PROCESS: STRICT INSPECTION STANDARDS
1. ENGINE & GEARBOX TESTING
All units undergo SEA LION Standard SL-ENG-2026, exceeding SAE J1363 and ISO 1585 protocols. Testing occurs on calibrated AVL PUMA dynos.
| Parameter | SEA LION Standard | Test Method | Acceptance Threshold |
|---|---|---|---|
| Power Output | ±2% of OEM spec | Steady-state load sweep (100-2500 RPM) | ≥98% rated HP |
| Oil Analysis | ISO 4406:2017 Class ≤18/16/13 | Spectrographic (Fe, Al, Cu, Si ppm) | <25 ppm wear metals |
| Gearbox Pressure Drop | ≤5% variance per gear | Hydraulic pressure transducers @ 50°C | ΔP < 0.8 bar |
| Emissions | Tier 4 Final + 10% margin | AVL 733s Gas Analyzer | NOx < 1.5 g/kWh |
| Non-Conformance | Immediate quarantine for teardown; components scrapped if wear exceeds 0.05mm tolerance per SEA LION SL-MET-2026. |
2. CABIN REPAINTING
Performed in ISO Class 8 clean booths per SEA LION Standard SL-PNT-2026. Adhesion and thickness validated per ASTM D3359/D7091.
| Process Stage | Specification | Quality Control Check | Tolerance |
|---|---|---|---|
| Surface Prep | SSPC-SP 10/NACE No. 2 | White glove test + profilometer | Ra = 2.5-4.0 µm |
| Primer Application | Epoxy zinc-rich (80µm DFT) | Holiday detection @ 5kV | 0 defects/m² |
| Topcoat Application | Polyurethane (120µm DFT) | Gloss meter (60°) | 85±5 GU |
| Final Cure | 72h @ 23°C | Adhesion pull-off test | ≥5.0 MPa |
| Non-Conformance | Complete stripping; base metal re-prepped. No field touch-ups permitted. |
3. NEW TIRES & BATTERY REPLACEMENT
OEM-equivalent components only. All items serialized and traceable to batch certifications.
| Component | SEA LION Requirement | Validation | Critical Parameter |
|---|---|---|---|
| Tires (O-Ring Seals) | Michelin XDR 2 or equivalent | Load rating ≥110% of OEM spec | Radial runout < 1.5mm |
| Battery | CAT EFB 1500 CCA min | Conductance test @ -18°C | ≥1450 CCA |
| Electrical System | Full circuit resistance scan | Voltage drop < 0.2V @ 200A load | Ground integrity >100MΩ |
| Non-Conformance | Components rejected if batch certification incomplete or shelf life <24 months. |
4. CHASSIS REINFORCEMENT
Structural integrity verified per SEA LION Standard SL-STR-2026 (aligned with ASME B30.5 Appendix VI).
| Inspection Zone | Method | Reinforcement Protocol | Acceptance Criteria |
|---|---|---|---|
| Track Frame Welds | MPI + UT (5MHz) | Full-penetration welds at fatigue zones | 0 cracks; undercut <0.5mm |
| Boom/Pin Bosses | Load testing @ 125% SWL | Gusset plates added if deflection >2mm | ΔL ≤1.5mm @ 500h sim |
| Undercarriage Alignment | Laser theodolite (±0.1mm) | Shim replacement if misalignment >3mm | Parallelism ≤0.5° |
| Non-Conformance | Chassis scrapped if base material hardness variance >5% or corrosion depth >15% wall thickness. |
SEA LION QUALITY ASSURANCE PROTOCOL
- Traceability: Every component tagged with QR code linking to 120-point inspection report.
- Final Validation: 2-hour operational test under simulated load (ISO 10218-1 Annex B).
- Certification: Units issued SEA LION Certified Pre-Owned (CPC) Certificate with 12-month structural warranty.
- Compliance: All processes audited quarterly by DNV GL against ISO 9001:2025 and ANSI/ASSP A10.48-2026.
Note: Units failing any phase are excluded from SL-AMP inventory. SEA LION maintains 0.8% refurbishment rejection rate (2025 Q4 benchmark), 62% below industry average (AEMP 2025 Report).
SEA LION International – Engineering Asset Longevity
This document supersedes all prior specifications. SEA LION reserves right to modify standards without notice to comply with evolving regulatory frameworks.
Shipping & Logistics Solutions
Industrial Specification Report 2026
Prepared by: SEA LION International
Subject: Logistics Solutions for Exporting Used Cat Excavators from China
Target Audience: Fleet Managers & Construction Companies
Executive Summary
This report evaluates the optimal logistics solutions for exporting used Caterpillar excavators from Chinese ports to global destinations. With increasing demand for cost-effective heavy equipment in emerging markets, efficient, secure, and economical shipping methods are critical. Three primary maritime transport modes are analyzed: Roll-on/Roll-off (RO-RO), Bulk Cargo, and Flat Rack container shipping. Each method is assessed for suitability, cost, transit integrity, and corrosion protection—specifically addressing the use of wax-based anti-corrosion treatments for seawater exposure.
1. Equipment Profile: Used Cat Excavators
| Parameter | Specification |
|---|---|
| Typical Weight Range | 18–45 metric tons |
| Dimensions (L×W×H) | 9.5–12.5 m × 2.8–3.5 m × 3.0–3.8 m |
| Operating Condition | Operational, minor wear, pre-inspected |
| Pre-Shipment Preparation | Fluid drained, batteries disconnected |
| Corrosion Risk Level | High (exposed hydraulics, undercarriage) |
2. Shipping Method Comparison
| Criteria | RO-RO (Roll-on/Roll-off) | Bulk Cargo (Loose Stowage) | Flat Rack Container (20’/40′) |
|---|---|---|---|
| Loading Mechanism | Self-propelled or towed onto vessel | Crane-lifted, secured on deck/hold | Crane-lifted onto open-top platform |
| Suitability for Excavators | High (ideal for tracked equipment) | Medium (risk of shifting) | High (secure lashing points) |
| Port Infrastructure | Requires RO-RO terminal | General cargo port sufficient | Container terminal with heavy lift |
| Handling Damage Risk | Low (minimal lifting) | High (multiple crane lifts) | Medium (depends on lashing quality) |
| Transit Time (China → Global) | 25–40 days (direct routes) | 30–45 days | 28–42 days |
| Average Cost (per unit) | $3,200–$4,500 | $2,800–$3,900 | $4,000–$5,800 |
| Insurance Complexity | Standard RO-RO coverage | Higher risk = higher premiums | Standard container insurance |
| Customs Clearance | Faster (vehicle VIN-based) | Slower (bulk manifest processing) | Fast (container tracking system) |
| Best For | Operational units, time-sensitive | Non-operational, budget-focused | Oversized or non-movable units |
3. Corrosion Protection: Wax Spraying System
Seawater exposure during maritime transit poses a severe corrosion threat to excavator undercarriages, hydraulic cylinders, and structural joints. SEA LION International mandates a wax-based anti-corrosion treatment for all units prior to shipment.
Wax Spraying Protocol (ISO 8501-1 Compliant)
| Step | Procedure | Purpose |
|---|---|---|
| 1 | High-pressure wash & degrease | Remove salt, dust, residual fluids |
| 2 | Dry with compressed air | Prevent moisture entrapment |
| 3 | Apply solvent-based wax spray (50–70μm) | Form hydrophobic, salt-resistant barrier |
| 4 | Target zones: undercarriage, boom pins, track links | Maximize protection on high-risk areas |
| 5 | Curing time: 4–6 hours (ambient) | Ensure adhesion and film integrity |
Wax Product Specification:
– Type: Petroleum-based, non-toxic, biodegradable formulation
– Salt Spray Resistance: 500+ hours (ASTM B117)
– Service Temperature Range: -30°C to +80°C
Note: Wax film is removable via standard degreasing agents upon arrival; no residue impacts on operation.
4. Method Recommendation Matrix
| Scenario | Recommended Method | Rationale |
|---|---|---|
| Multiple operational units, fast deployment | RO-RO | Fast loading, low handling risk, direct roll-off at destination |
| Budget-constrained, non-functional units | Bulk Cargo | Lowest cost; acceptable for repair-bound units |
| Oversized models (e.g., 349, 390), non-rollable | Flat Rack | Full structural support, secure lashing, global reach |
5. Operational Workflow (China Export)
- Pre-shipment Inspection – Verified by third-party surveyor (e.g., SGS)
- De-commissioning – Fuel drained, batteries removed, tracks tensioned
- Corrosion Protection – Full wax spray application
- Transport to Port – Lowboy trailer to loading terminal
- Loading & Securing – Method-specific stowage and lashing
- Documentation – Bill of Lading, Export Declaration, Certificate of Origin
- Transit Monitoring – GPS-tracked (if applicable), weather routing
6. Conclusion
For fleet managers and construction firms sourcing used Cat excavators from China, RO-RO shipping offers the optimal balance of speed, safety, and equipment integrity for operational units. Flat Rack is recommended for non-rollable or oversized models requiring structural stability. While Bulk Cargo is cost-effective, it carries higher risk of damage and corrosion.
Mandatory wax spraying significantly mitigates seawater-induced corrosion, preserving resale and operational value. SEA LION International enforces this protocol across all export operations to ensure equipment arrives in field-ready condition.
End of Report – SEA LION International, 2026
Get a Quote for Used Cat Excavator For Sale
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]
