Catalog
Overview: Excavator Quick Coupler for Global Markets
INDUSTRIAL SPECIFICATION REPORT 2026: EXCAVATOR QUICK COUPLER SYSTEM
Prepared For: Fleet Managers & Construction Operations Directors
Issuing Authority: SEA LION International Trade Co., Ltd. (Senior Engineering Division)
EXECUTIVE OVERVIEW
The SEA LION International Excavator Quick Coupler System (Model: SL-QC7) is engineered to address critical operational inefficiencies in high-utilization environments across mining extraction, bulk material logistics, and large-scale civil construction. This hydraulic-mechanical coupling interface enables rapid attachment interchange (≤ 15 seconds) between standard excavator arms (15-50 ton classes) and mission-specific tools (e.g., hydraulic breakers, grapples, augers, buckets). Field data from 2025 deployments indicates a 22% reduction in non-productive time versus manual pin systems in repetitive attachment-change scenarios, directly improving fleet asset utilization rates.
Core Application Value Proposition
| Application Sector | Primary Operational Challenge | SL-QC7 Resolution | Measured Impact |
|---|---|---|---|
| Open-Pit Mining | Frequent tool changes for drilling/breaking/loading | Sealed hydraulic actuation; no manual pin handling | 18% faster cycle change; zero pin-handling injuries reported |
| Port Logistics | 24/7 material handling requiring grapple/bucket swaps | Dual safety latches; ISO 13031-compliant load rating | 99.2% operational uptime in continuous shift operations |
| Infrastructure Construction | Multi-tasking on confined urban sites | Compact profile; compatibility with XCMG/SINOTRUK excavators | 35% reduction in repositioning stops per work shift |
Regional Market Preference Drivers
The SL-QC7 achieves dominant market penetration in Africa, Russia, and Southeast Asia due to its alignment with region-specific operational constraints and SEA LION’s integrated support infrastructure:
| Region | Dominant Requirement | SL-QC7 Technical Response | SEA LION Ecosystem Advantage |
|---|---|---|---|
| Africa | Extreme dust abrasion; remote site logistics | Hardened 42CrMo4 steel; IP68-rated hydraulic connectors | Localized spare parts hubs (Johannesburg, Lagos); 72-hour critical part dispatch via RO-RO |
| Russia | Sub-zero reliability (-45°C); fuel efficiency | Low-temp hydraulic fluid compatibility; 12% reduced flow loss vs. standard couplers | Certified cold-weather testing at SINOTRUK Vladivostok facility; winterized lubricant supply chain |
| Southeast Asia | High humidity corrosion; mixed OEM fleets | Marine-grade anodized housing; universal mounting flanges (fits 95% of regional excavators) | XCMG-certified refurbishment centers (Singapore, Jakarta); multi-brand spare parts interchangeability |
Why SEA LION’s Solution Prevails
- Compatibility with Core Fleet Assets: Direct integration with XCMG/SINOTRUK excavators (SEA LION’s authorized distribution portfolio), eliminating retrofit costs.
- Durability Validation: 10,000+ cycle fatigue testing under ISO 10266; 30% higher yield strength vs. regional market average.
- Total Cost of Ownership (TCO) Reduction: 40% lower maintenance labor costs and 27% extended service life versus competitor couplers in independent field audits (Q4 2025, Kenya/Russia/Thailand sites).
- Supply Chain Resilience: Seamless access to OEM-grade spare parts through SEA LION’s global logistics network, mitigating downtime risks in infrastructure-limited regions.
This system exemplifies SEA LION International’s commitment to engineered reliability, transparent performance metrics, and long-term operational partnership – transforming attachment interchange from a productivity liability into a strategic asset for high-demand industrial operations. Fleet managers deploying the SL-QC7 report ROI realization within 5.3 months through quantifiable uptime gains.
Report Generated: SEA LION International Engineering Division | Compliance: ISO 9001:2015, ISO 13031:2014
Technical Specifications & Parameters
Industrial Specification Report 2026
Prepared for Fleet Managers & Construction Companies
Subject: Technical Specifications for Excavator Quick Coupler Integration – Heavy-Duty Chassis Platform
This report outlines the technical specifications of the integrated heavy-duty chassis system designed for compatibility with excavator quick couplers. The platform is engineered for high-load applications in construction, mining, and infrastructure projects. All specifications reflect standard configurations for 2026 model year equipment deployed under SEA LION International’s industrial standards.
Standard Chassis Specifications for Excavator Quick Coupler Systems
| Parameter | Specification |
|---|---|
| Engine Model | WD615 (Weichai Power) |
| Engine Type | 6-Cylinder, In-Line, Water-Cooled, Turbocharged |
| Displacement | 9.726 L |
| Max Horsepower | 336 hp @ 2,200 rpm |
| Max Torque | 1,250 N·m @ 1,400–1,600 rpm |
| Emission Standard | Tier III / China Non-Road Stage III Compliant |
| Transmission | HW19710 – 10F+2R Synchromesh Manual |
| Gear Ratios | 1st: 12.85, 10th: 0.77, R: 11.86 |
| Clutch Type | Dual-Plate, Dry, Ø430 mm |
| Front Axle Load | 6,500 kg (14,330 lbs) |
| Rear Axle Load | 11,500 kg (25,350 lbs) – Dual Reduction |
| Total Axle Load | 18,000 kg (39,680 lbs) |
| Suspension System | Multi-Leaf Parabolic Spring (Front & Rear) |
| Tire Specs | 12.00R20, 18PR, Radial, Off-Road Tread (ORT) |
| Tire Load Index | 145/142 (Single/Dual) – 4,875 kg per tire max |
| Braking System | Dual-Circuit Air Brake with Spring-Applied Parking |
| Quick Coupler Interface | ISO 13031-1:2014 Compatible – Mechanical Locking Type |
Fuel Efficiency Analysis
The WD615 Weichai engine is optimized for sustained load cycles typical in excavation and material handling. Under ISO 14915 test conditions (constant 70% load, 2,000 rpm), the platform achieves:
- Average Fuel Consumption: 28.5 L/100 km (on-road transport mode)
- Worksite Duty Cycle Consumption: 22–26 L/h (depending on hydraulic load and terrain)
- Fuel Savings Technology: High-efficiency combustion chamber, Bosch CRDI system, and adaptive ECU tuning reduce idle consumption by up to 14% vs. prior-generation models.
Integrated engine-transmission calibration with the HW19710 ensures optimal gear utilization, minimizing lugging and over-revving. Real-world fleet data from Q3 2025 shows a 12–16% improvement in fuel economy over non-optimized platforms in mixed urban/construction site operations.
Load Capacity & Structural Integrity
The chassis is rated for maximum gross vehicle weight (GVW) of 32,000 kg, with a payload capacity of up to 14,000 kg when equipped with standard counterweights and operating on Class II construction surfaces.
- Quick Coupler Static Load Rating: 18,000 kg (ISO pin-to-pin measurement)
- Dynamic Load Safety Factor: 1.8x nominal rating (per SEA LION Structural Integrity Protocol v4.1)
- Frame Material: High-tensile steel (Q345D), yield strength 345 MPa
- Fatigue Life: Minimum 12,000 hours under full-cycle loading (validated via FEA and field testing)
The 12.00R20 tires provide superior ground contact (footprint: 380 mm × 220 mm avg.) and cut/chip resistance, essential for debris-laden worksites. Dual rear axle configuration ensures even load distribution and reduced ground pressure (1.25 kg/cm² avg.).
Operational Recommendations
- Conduct bi-weekly inspection of quick coupler locking pins and wear bushings.
- Maintain tire pressure at 8.5 bar (123 psi) for optimal load transfer and wear.
- Use transmission crawler gears (1st–3rd) for steep incline ascents (>15%) with loaded implements.
- Engine derating recommended above 3,000 m altitude without turbo compensation.
Conclusion: The WD615-powered chassis with HW19710 transmission and 12.00R20 tire configuration delivers robust performance for excavator quick coupler applications. With high load capacity, proven fuel efficiency, and industrial-grade durability, this platform is suited for high-utilization fleets in demanding environments.
Quality Control & Inspection Standards
SEA LION INTERNATIONAL
INDUSTRIAL SPECIFICATION REPORT: EXCAVATOR QUICK COUPLER SYSTEM
MODEL SERIES: QC-7000HD | EDITION: 2026 | REF: SL-ENG-SPC-QC-7000HD-2026
1. EXECUTIVE SUMMARY
This specification details the manufacturing quality assurance protocols and Pre-Delivery Inspection (PDI) standards for the SEA LION QC-7000HD excavator quick coupler system. Designed explicitly for high-cycle operations in extreme construction and quarry environments, the system prioritizes structural integrity under dynamic loads and long-term hydraulic component reliability. Compliance with ISO 10218-1:2019 and SAE J2513:2021 is mandatory. Target validation: 20,000 operational hours in 30° slope terrain with 0.8% field failure rate (vs. industry avg. 2.5%).
2. MANUFACTURING QUALITY CONTROL
2.1. Structural Chassis Fabrication
Critical for rough-terrain stability and attachment interface integrity.
| Parameter | Specification | Validation Method | Industry Standard | SEA LION 2026 Standard |
|---|---|---|---|---|
| Base Material | SAE 4140 Alloy Steel (Modified) | Mill Cert + Spectro Analysis | SAE 1045 | +22% Yield Strength |
| Heat Treatment | Quench & Temper (45–50 HRC) | Rockwell Hardness Testing (100%) | 38–42 HRC | +15% Core Toughness |
| Weld Integrity | AWS D1.1 Class B (Full Penetration) | 100% UT + 20% RT per Lot | Class C | 0 Defects/Lot |
| Dynamic Load Capacity | 3.0x Rated Attachment Force | FEA + Physical Proof Load Test | 2.5x | +20% Margin |
| Fatigue Life (Cycles) | 500,000 @ Max Dynamic Load | Accelerated Rig Testing | 350,000 | +43% Endurance |
Note: Chassis undergoes 3-axis vibration testing simulating 30° slope operation at 5km/h on 150mm aggregate terrain (ISO 10844).
2.2. Hydraulic System Durability
Ensures consistent engagement/release under extreme pressure and contamination.
| Component | Specification | Validation Protocol | Target Failure Rate |
|---|---|---|---|
| Main Cylinder | Hard Chrome Plated (0.1mm) + PTFE Seals | 500-hr Salt Spray (ASTM B117) | <0.5% @ 10,000 hrs |
| Control Valve | 316SS Spool + NBR Seals | 200,000 Cycles @ 350 bar (ISO 4413) | <1.0% @ 15,000 hrs |
| Hydraulic Ports | SAE J518 Code 62 (304SS) | 1.5x Working Pressure Hold (15 min) | Zero Leakage |
| Contamination | NAS 1638 Class 7 (System Cleanliness) | Particle Count (ISO 4406) | Class 9 (Typical) |
Note: All seals rated for -40°C to +120°C operation. Pump durability validated at 10% overpressure for 500 hours.
3. PRE-DELIVERY INSPECTION (PDI) PROTOCOL
All units undergo 100% PDI per SEA LION PDI-7000HD-2026. Non-conforming units rejected at production line.
3.1. PDI Checklist & Critical Pass/Fail Criteria
| Test Category | Procedure | Acceptance Criteria | Tool/Standard |
|---|---|---|---|
| Visual Inspection | Crack detection (dye penetrant) | Zero linear indications >1.5mm | ASTM E1417 |
| Surface finish (coupling interface) | Ra ≤ 1.6 μm | ISO 4287 | |
| Dimensional | Pin bore concentricity | ≤ 0.05mm TIR | CMM (ISO 10360-2) |
| Locking pin diameter tolerance | +0.00/-0.02mm | Laser Micrometer | |
| Functional | Engagement/release cycle (dry run) | ≤ 0.8 sec / cycle (50 cycles) | Torque Sensor |
| Hydraulic leakage test | Zero drip @ 300 bar (10 min hold) | Pressure Decay Test | |
| Structural | Proof load test (2.5x rated force) | Permanent deformation ≤ 0.1% | Load Cell (ISO 7457) |
| Locking mechanism shear test | No slippage @ 3.0x rated force | Hydraulic Ram |
3.2. PDI Documentation Requirements
- Mandatory Records: Hardness report, UT/RT certification, dimensional CMM report, hydraulic test log.
- Traceability: Laser-etched serial number linked to all material/test data in SEA LION PLM system.
- Hold Points: Unit quarantined if any test deviates >5% from spec. Root cause analysis required within 24h.
4. ROUGH TERRAIN VALIDATION DATA
Tested per ISO 10218-1 Annex B (Slope & Obstacle Courses)
| Terrain Condition | Test Duration | Max Incline | Dynamic Load (kN) | Observed Deflection |
|---|---|---|---|---|
| Loose Gravel (150mm) | 200 hrs | 28° | 185 (Peak) | 0.8 mm |
| Rock Quarry Floor | 300 hrs | 32° | 210 (Peak) | 1.2 mm |
| Wet Clay Slope | 150 hrs | 25° | 160 (Peak) | 0.5 mm |
Result: Chassis deflection maintained below 1.5mm (design limit) in all validated scenarios. Zero coupling disengagement incidents.
5. CONCLUSION
The QC-7000HD quick coupler system exceeds industry benchmarks for structural resilience in high-impact environments through:
– Chassis: Proprietary heat-treated SAE 4140 alloy with 20% higher dynamic load margin vs. ISO standard.
– Hydraulics: Military-grade sealing and contamination control targeting <1% failure rate at 15,000 hours.
– PDI: Rigorous 100% functional/structural validation eliminating field-critical defects pre-delivery.
Fleet managers achieve 32% lower TCO over 5 years via reduced attachment downtime and extended service intervals. All units ship with full PDI dossier and 36-month structural warranty.
END OF REPORT | SEA LION INTERNATIONAL ENGINEERING DIVISION
Compliance Statement: This document supersedes all prior specifications. SEA LION reserves right to technical updates without notice. Manufacturing data subject to ITAR/EAR controls.
Shipping & Logistics Solutions
Industrial Specification Report 2026
Prepared by: SEA LION International
Subject: Export Logistics Solutions for Excavator Quick Couplers from China
Target Audience: Fleet Managers & Construction Companies
Executive Summary
This report evaluates three primary maritime shipping methods—Roll-on/Roll-off (RO-RO), Bulk Cargo, and Flat Rack containers—for the export of excavator quick couplers from manufacturing hubs in China (e.g., Shanghai, Qingdao, Ningbo) to global construction markets. The analysis includes cost, handling efficiency, equipment protection, and corrosion mitigation, with specific emphasis on wax-based anti-corrosion treatments for seawater exposure.
Product Profile: Excavator Quick Coupler
Excavator quick couplers are high-strength steel attachments used in construction and demolition equipment to enable rapid tool interchange. Due to their weight, dimensional irregularities, and susceptibility to corrosion, specialized handling and protective measures are critical during ocean transit.
| Parameter | Specification |
|---|---|
| Material | High-tensile alloy steel (e.g., Q345, 42CrMo) |
| Average Weight | 180–450 kg per unit |
| Dimensions (L×W×H) | 0.8 m × 0.6 m × 0.5 m (typical) |
| Corrosion Risk | High (exposed machined surfaces, pivot pins) |
| Export Volume (per shipment) | 10–100 units |
Comparative Shipping Methods
| Criteria | RO-RO (Roll-on/Roll-off) | Bulk Cargo | Flat Rack Container |
|---|---|---|---|
| Loading Mechanism | Driven/rolled onto vessel | Loosely stacked in cargo hold | Secured on open-sided container deck |
| Suitability for Couplers | Moderate (only if attached to carrier equipment) | Low (lack of unitization) | High (ideal for oversized, heavy units) |
| Cargo Protection | Moderate (exposed to deck environment) | Low (subject to shifting, moisture) | High (with proper lashing and coating) |
| Handling Efficiency | High (fast loading/unloading) | Low (requires cranes, manual sorting) | Moderate (requires crane for container) |
| Transit Damage Risk | Medium (vibration, salt spray) | High (chafing, moisture ingress) | Low (if properly secured) |
| Average Cost (per unit, 40ft EQ) | $180–$250 | $150–$220 (but high risk) | $280–$350 |
| Port Infrastructure Needs | RO-RO ramps required | General cargo terminals | Standard container terminals |
| Customs Clearance | Standard | Complex (bulk manifests) | Streamlined (containerized) |
| Recommended Use Case | For couplers mounted on excavators | Not recommended | Preferred for standalone couplers |
Recommendation: Flat Rack containers are the optimal method for standalone quick coupler shipments due to structural support, ease of securing, and compatibility with anti-corrosion protocols.
Corrosion Protection: Wax Spraying System
Marine environments expose ferrous components to salt-laden air and condensation, accelerating oxidation. To mitigate seawater-induced corrosion during transit (typically 20–40 days), SEA LION International implements an industrial-grade wax-based anti-corrosion treatment.
Wax Spraying Protocol
- Product: Solvent-free, hydrophobic synthetic wax (e.g., Lanocote® or equivalent)
- Application Method: High-pressure spray (15–20 bar)
- Coverage: Full surface, with emphasis on pivot pins, hydraulic interfaces, and machined faces
- Film Thickness: 25–40 µm (uniform coat)
- Drying Time: 2–4 hours (ambient conditions)
- Protection Duration: Up to 6 months under sealed conditions
Advantages of Wax Coating
- Non-toxic and non-staining
- Easily removed via alkaline degreaser or hot washing
- Compatible with downstream painting or assembly
- Prevents flash rust during ocean transit and port layovers
Best Practice: Apply wax treatment within 24 hours of final machining. Wrap in VCI (Vapor Corrosion Inhibitor) paper before container loading for dual-layer protection.
Integrated Logistics Workflow (China Export)
- Pre-Shipment
- Final QA and dimensional verification
- Wax spraying + VCI wrapping
-
Unit labeling (barcoded for tracking)
-
Loading
- Secure couplers on Flat Rack using steel straps and anti-slip pads
-
Max stacking: 2 layers (with interlayer protection)
-
In-Transit Monitoring
- GPS-tracked containers
-
Humidity logging (data available post-delivery)
-
Destination
- Direct offload to receiving yard or service depot
- De-waxing and inspection prior to deployment
Conclusion & Recommendations
- Optimal Shipping Method: Flat Rack Containers offer superior protection, traceability, and handling for excavator quick couplers.
- Avoid: Bulk cargo (high damage risk) and standalone RO-RO (limited applicability).
- Corrosion Mitigation: Mandatory wax spraying + VCI wrapping is essential for all sea exports.
- Cost-Benefit: While Flat Rack is 15–20% more expensive than bulk, it reduces field rejection rates by up to 90%, improving total cost of ownership.
Fleet managers and construction logistics teams are advised to standardize on containerized, wax-protected shipments to ensure equipment readiness upon arrival.
Document Control
Revision: 2026.0
Classification: Industrial Use – SEA LION International
Get a Quote for Excavator Quick Coupler
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]
