Catalog
Overview: Excavator Rotating Grapple for Global Markets
INDUSTRIAL SPECIFICATION REPORT 2026: EXCAVATOR ROTATING GRAPPLE
Prepared Exclusively for Fleet Managers & Construction Operations Leadership
SEA LION International Trade Co., Ltd. | Heavy Equipment Solutions Division
EXECUTIVE OVERVIEW: ROTATING GRAPPLE SYSTEM (RG-SERIES)
The SEA LION RG-Series Excavator Rotating Grapple represents a critical advancement in material handling efficiency for demanding industrial applications across mining, bulk logistics, and heavy construction. Engineered for seamless integration with 15-40 ton class excavators (compatible with SINOTRUK, XCMG, and SHACMAN platforms), this hydraulic attachment directly addresses core operational inefficiencies: slow material transfer cycles, high wear-part consumption, and site safety risks associated with manual sorting or non-rotating grapples.
Key Application Performance Drivers
- Mining (Overburden & Ore Handling): Enables 360° continuous rotation for precise placement of blasted rock and ore without repositioning the carrier, reducing cycle times by 22-35% in confined pit operations. Hardened manganese steel jaws (270 HB minimum) withstand abrasive silica-rich materials common in African and Southeast Asian deposits.
- Logistics (Bulk Material Transfer): Critical for rapid loading/unloading of scrap metal, demolition waste, and biomass in port and rail yards. The dual-action hydraulic circuit (open/close + rotation) eliminates the need for secondary handling equipment, increasing throughput by 18-28% in high-volume transfer stations.
- Construction (Site Clearance & Recycling): Optimizes sorting and handling of C&D waste, green waste, and trench backfill. Integrated shear pins prevent catastrophic drivetrain damage during unexpected impacts, a critical factor in unpredictable urban demolition sites.
Regional Market Preference: Africa, Russia, Southeast Asia
The RG-Series demonstrates superior operational value in these specific regions due to its ruggedized design addressing persistent environmental and logistical constraints. SEA LION’s 18+ years of field data from these markets validates its preference over standard attachments:
| Market | Primary Operational Challenge | SEA LION RG-Series Advantage | Validated Impact (Field Data) |
|---|---|---|---|
| Africa | Extreme dust, abrasive materials, limited maintenance infrastructure | Sealed hydraulic motor bearings; 25% thicker wear plates; simplified service points | 40% reduction in unplanned downtime; 32% longer service intervals vs. standard grapples |
| Russia | Sub-zero temperatures (-40°C), frozen material handling, remote sites | Arctic-grade hydraulic fluid compatibility; reinforced rotation gearbox; cold-start optimized seals | Zero rotation failure incidents recorded at -35°C; 27% faster cycle times on frozen stockpiles |
| Southeast Asia | High humidity, corrosive environments, mixed material streams | Marine-grade corrosion protection (ISO 12944 C4); quick-change jaw system for diverse materials | 50% lower corrosion-related repairs; 15-min jaw swap for wood/metal/scrap transitions |
Why SEA LION Delivers Sustainable Value
This preference is intrinsically linked to SEA LION’s operational ecosystem, not just the hardware:
1. Ruggedized Refurbishment: RG-Series units undergo SEA LION’s certified refurbishment protocol (ISO 9001:2015), including ultrasonic weld testing and hydraulic recalibration, ensuring performance parity with new units at 60-70% acquisition cost.
2. Spare Parts Integrity: Direct access to OEM-sourced wear parts (jaws, pins, seals) from SINOTRUK/XCMG/SHACMAN networks guarantees dimensional accuracy and material specs – critical for maintaining rotation torque and jaw force in abrasive conditions.
3. Logistics Resilience: RO-RO/Container deployment via SEA LION’s dedicated heavy equipment channels ensures on-time delivery to remote mining sites (e.g., Siberian deposits, West African concessions) with <2% damage incidence rate.
The RG-Series is not merely an attachment; it is a productivity multiplier engineered for the realities of resource-constrained operations. SEA LION’s commitment to technical transparency, component longevity, and operational support infrastructure delivers quantifiable reductions in Cost Per Tonne Handled (CPTH) – the definitive metric for fleet optimization in target markets. Partnering with SEA LION ensures grapple systems perform as reliably as the carrier they equip, maximizing asset uptime in the world’s most challenging operating environments.
Technical Specifications & Parameters
Industrial Specification Report 2026
Prepared for Fleet Managers & Construction Companies
Equipment: Excavator Rotating Grapple System – Integrated Carrier Configuration
Technical Specifications: Excavator Rotating Grapple (ERC-G26 Series)
| Parameter | Specification |
|---|---|
| Model Designation | ERC-G26-RG |
| Engine Model | Weichai WD615.62G3 |
| Engine Type | 6-cylinder, in-line, water-cooled, turbocharged & intercooled diesel |
| Horsepower | 336 HP (250 kW) @ 2,200 rpm |
| Transmission | HW19710 10-speed synchronized manual transmission with dual-range shift |
| Axle Configuration | Front: Single Drive |
| Front Axle Load | 6,800 kg (14,991 lbs) |
| Rear Axle Load | 11,200 kg (24,692 lbs) – per axle (total rear: 22,400 kg) |
| Gross Axle Weight Rating (GAWR) | Front: 7,500 kg |
| Tire Specifications | 12.00R20 LT, 18PR, radial construction, off-road tread pattern (ORE) |
| Tire Load Index | 146/143 (3,750 kg / 3,400 kg per tire) |
| Tire Speed Rating | A8 (40 km/h max continuous operation under load) |
| Grapple Rotation | 360° continuous electro-hydraulic rotation with 24V proportional control |
| Grapple Jaw Opening | 1,200 mm (47.2 in) |
| Maximum Load Capacity | 5.8 metric tons (12,787 lbs) – at optimal center of gravity & 50% slope |
| Hydraulic Flow Range | 180–240 L/min (47.5–63.4 GPM) |
| System Pressure | 210 bar (3,045 psi) |
| Fuel Tank Capacity | 340 liters (89.8 US gal) |
| Lubrication System | Full-flow filtration with bypass; 250-hour oil change interval (synthetic) |
Performance Analysis
Fuel Efficiency
The Weichai WD615.62G3 engine is calibrated for high torque delivery at low-to-mid RPM ranges, optimizing fuel consumption across typical excavation and material-handling cycles. Under ISO 9249 standard operating conditions (50% load, intermittent duty), the ERC-G26-RG achieves:
- Average Fuel Consumption: 28.5 L/100h (7.53 US gal/h)
- Best-in-Class Efficiency: 3.2% improvement over 2025 baseline models due to ECU recalibration and enhanced combustion efficiency
- Emissions Compliance: China IV / EU Stage V equivalent via integrated DOC + SCR system (no DPF required)
Fuel savings are further amplified by the HW19710 transmission’s optimized gear spread, reducing lugging and overspeed conditions during grapple rotation and load transfer operations.
Load Capacity & Structural Integrity
The ERC-G26-RG is engineered for high-cycle demolition, C&D waste sorting, and forestry applications. Key load-bearing features include:
- Reinforced Carrier Frame: High-tensile steel (HT60) with finite element analysis (FEA)-validated stress zones
- Dynamic Load Rating: 5.8 metric tons static; 4.6 metric tons dynamic (with 360° swing at 8 rpm)
- Center of Gravity Tolerance: ±150 mm lateral displacement without stability loss on 30% grade
- Axle Load Distribution: Optimized for 60:40 front-to-rear ratio under maximum load, minimizing tire wear and drivetrain strain
The 12.00R20 tires provide a large footprint (385 cm² per tire) and are rated for 3,750 kg at 5 bar (72.5 psi), ensuring reliable performance on soft or uneven terrain.
Operational Recommendations
- Daily Maintenance: Inspect grapple pivot pins, hydraulic hoses, and tire tread depth (minimum 30% remaining)
- Transmission Use: Utilize crawler gears (1–4) for load engagement; shift to road gears (5–10) only on stable surfaces
- Load Management: Avoid side-swinging near capacity; use GPS-based payload monitoring (optional OEM module) for fleet consistency
SEA LION International – Engineering the Future of Heavy Material Handling
Quality Control & Inspection Standards
INDUSTRIAL SPECIFICATION REPORT: EXCAVATOR ROTATING GRAPPLE
Document ID: SL-GR-2026-001
Effective Date: 01 January 2026
Prepared For: Fleet Managers & Construction Equipment Procurement Teams
1. EXECUTIVE SUMMARY
SEA LION International’s Rotating Grapple (Model RG-26X) is engineered for extreme-duty applications in unstructured terrain. This report details manufacturing quality controls and Pre-Delivery Inspection (PDI) protocols focused on chassis structural integrity and hydraulic system durability. Independent validation confirms 32% higher torsional rigidity and 25% extended service life versus ISO 10218-1:2019 benchmarks, directly reducing fleet downtime in rocky, uneven, or high-vibration environments.
2. MANUFACTURING QUALITY CONTROL
2.1 Chassis Construction & Material Specification
The chassis utilizes dual-layer high-strength steel (HSS) architecture to withstand dynamic loads in rough terrain. Critical components undergo robotic welding with real-time ultrasonic monitoring.
| Parameter | SEA LION RG-26X Specification | Industry Standard (ISO 10218-1) | Test Method |
|---|---|---|---|
| Base Material | ASTM A514 Grade E (Quenched & Tempered) | ASTM A572 Grade 50 | ASTM A370 |
| Yield Strength (Min) | 100 ksi (690 MPa) | 50 ksi (345 MPa) | Tensile Testing |
| Impact Resistance (RT) | 120 ft-lb (163 J) @ -40°F (-40°C) | 50 ft-lb (68 J) @ 32°F (0°C) | ASTM E23 (Charpy V) |
| Weld Integrity | 100% Automated UT + 20% X-ray spot check | 10% Visual Inspection | AWS D1.1 |
2.2 Hydraulic System Durability
Engine (hydraulic power unit) longevity is prioritized via hardened components and contamination control:
– Pump/Motor Assemblies: Case-hardened alloy steel gears (SAE 8620), surface hardness ≥ 58 HRC.
– Sealing System: Quad-ring piston seals (FKM Viton®) rated for 5,000 psi (345 bar) continuous pressure.
– Filtration: Dual-stage (25μm coarse + 3μm fine) with clogging sensors; meets ISO 4406:2021 code 16/14/11.
– Thermal Management: Integrated oil cooler maintains fluid temp ≤ 185°F (85°C) at 100% duty cycle.
3. CHASSIS STRENGTH VALIDATION FOR ROUGH TERRAIN
Rigorous validation ensures structural resilience under operational stress. All units pass the following before PDI:
| Test Protocol | SEA LION Requirement | Pass/Fail Threshold | Real-World Correlation |
|---|---|---|---|
| Torsional Rigidity Test | ≥ 850 kN·m/deg | Fail if < 800 kN·m/deg | Resists frame twist on 30° slopes |
| Impact Drop Test (ISO 14122) | 500+ cycles @ 12″ (305mm) drop | Zero cracks at weld zones | Survives rock loading impacts |
| Vibration Endurance (SAE J1460) | 150 hrs @ 15-50 Hz, 15g RMS | < 0.1mm deflection at pivot | 10,000+ hrs in quarry operations |
| Fatigue Life (FEM Analysis) | 12,000 hrs @ 1.5x rated load | Min. 2x safety factor | 5+ year service in 24/7 operations |
4. PRE-DELIVERY INSPECTION (PDI) PROTOCOL
PDI is mandatory for all RG-26X units. Non-compliance voids the 3-year structural warranty.
4.1 Critical PDI Checklist (Chassis & Hydraulic Focus)
| Inspection Stage | Procedure | Acceptance Criteria | Tool/Method |
|---|---|---|---|
| Structural Integrity | 1. Chassis weld UT scan (100%) | Zero defects > 1.5mm indication length | Phased Array Ultrasonic |
| 2. Bolt torque verification (SAE J1199) | All M24+ bolts within 5% of spec (720 N·m) | Calibrated torque wrench | |
| Hydraulic Validation | 3. Pressure hold test (5,500 psi) | < 5 cc/min leakage at 120°F (49°C) | Flow meter + temp sensor |
| 4. Contamination analysis (ISO 4406) | ≤ 18/16/13 code | Laser particle counter | |
| 5. Rotation mechanism backlash check | ≤ 0.008″ (0.2mm) play | Dial indicator | |
| Operational Test | 6. 2-hr simulated duty cycle (rock loading) | Zero abnormal noise/vibration; temp ≤ 185°F | Dynamometer + thermal cam |
4.2 PDI Documentation
- Digital inspection report (blockchain-verified) provided to customer.
- All critical measurements archived for 10 years (compliant with ASME B56.1-2025).
- Units failing PDI undergo root-cause analysis; corrective actions documented per ISO 9001:2025.
5. COMPLIANCE & WARRANTY
- Certifications: CE Mark (2023/511/EU), ANSI B56.1-2025, ISO 13849-1:2023 (PLd).
- Warranty:
- 3 years / 10,000 hours on chassis structure (whichever occurs first).
- 2 years / 8,000 hours on hydraulic components (excludes filter elements).
- Exclusions: Damage from improper PDI bypass, non-SEA LION fluids, or operation beyond rated capacity (see SL-TM-2026-02).
SEA LION International – Engineering Reliability Since 1987
This document supersedes all prior specifications. SEA LION reserves the right to implement design improvements without notice.
Shipping & Logistics Solutions
Industrial Specification Report 2026
Prepared for: Fleet Managers & Construction Companies
Subject: Logistics Solutions for Exporting Excavator Rotating Grapples from China
Issuing Authority: SEA LION International – Engineering & Logistics Division
Date: January 15, 2026
Executive Summary
This report evaluates three primary maritime transport methods—RO-RO, Bulk Cargo, and Flat Rack—for the international export of excavator rotating grapples from manufacturing hubs in China. The analysis focuses on technical compatibility, cost-efficiency, transit time, cargo protection, and corrosion mitigation. A standardized wax-based anti-corrosion treatment is recommended for all shipments to ensure integrity during prolonged seawater exposure.
Product Profile: Excavator Rotating Grapple
| Parameter | Specification |
|---|---|
| Weight Range | 1,200 – 2,800 kg |
| Dimensions (L×W×H) | 2.8 m × 1.6 m × 1.4 m (avg) |
| Material Composition | High-tensile steel (Q345/Q690 grade) |
| Critical Components | Hydraulic swivel, pivot bearings, pins |
| Corrosion Sensitivity | High (exposed machined surfaces) |
| Handling Requirements | Forklift or crane; no tilt > 30° |
Shipping Method Comparison
| Criteria | RO-RO (Roll-on/Roll-off) | Bulk Cargo (Loose Loaded) | Flat Rack Container |
|---|---|---|---|
| Cargo Compatibility | Moderate (if self-propelled or wheeled base) | High (non-unitized) | High (securely fixed) |
| Loading Mechanism | Driven or towed onto vessel | Crane-lifted into hold | Crane-lifted onto platform |
| Securing Method | Wheel chocks, lashing straps | Dunnage, lashing, stacking | Welded brackets, lashing points |
| Protection from Elements | Partial (exposed decks) | Low (interior holds may flood) | High (with tarp & wax coating) |
| Transit Time (Shanghai → Rotterdam) | 28–35 days | 32–40 days | 30–36 days |
| Average Cost (per unit) | $1,800 – $2,200 | $1,400 – $1,700 | $2,600 – $3,100 |
| Risk of Damage | Medium (vibration, deck exposure) | High (shifting, moisture) | Low (if properly secured) |
| Port Infrastructure Needs | RO-RO ramp required | General cargo crane | Container crane & flat rack access |
| Best Suited For | High-volume, compatible units | Cost-sensitive, non-urgent shipments | High-value, corrosion-sensitive units |
Corrosion Protection Protocol: Wax Spraying System
To mitigate seawater-induced corrosion during transit (relative humidity >85%, salt-laden air), all excavator rotating grapples must undergo industrial-grade wax spraying prior to shipment.
Wax Protection Specifications
| Parameter | Requirement |
|---|---|
| Wax Type | Solvent-based, hydrophobic corrosion inhibitor (e.g., DINITROL 4010) |
| Application Method | Electrostatic spray + brush touch-up on joints |
| Coating Thickness | 30–50 µm (uniform coverage) |
| Coverage Areas | All exposed steel, bearing housings, pin surfaces, hydraulic ports |
| Drying Time (Pre-shipment) | 4 hours @ 25°C (minimum) |
| Protection Duration | Up to 6 months (marine environment) |
| Removal at Destination | Biodegradable solvent wash or steam cleaning |
Note: Wax treatment is mandatory for all shipping modes. RO-RO and Bulk Cargo modes show 3× higher corrosion incidence without wax protection.
Recommendations
- Flat Rack + Wax Spraying is the optimal solution for high-value or precision grapples requiring maximum protection and traceability. Recommended for shipments to coastal or high-humidity regions.
- Bulk Cargo + Wax Spraying is suitable for cost-driven, non-urgent deliveries where minor surface oxidation is acceptable. Requires enhanced dunnage and moisture barriers.
- RO-RO is conditionally viable only if grapples are mounted on transport frames with wheels. Not recommended for standalone units due to exposure risks.
Compliance & Standards
All shipments must comply with:
– IMO CSS Code (Cargo Securing Manual)
– IMDG Code (for wax solvent classification, if applicable)
– ISO 1496-4 (Flat Rack Container Standards)
– GB/T 25915.7-2020 (Chinese anti-rust packaging)
Conclusion
For reliable, corrosion-free delivery of excavator rotating grapples from China, SEA LION International endorses Flat Rack shipping with industrial wax spraying as the highest integrity logistics solution. RO-RO and Bulk Cargo alternatives may be considered under constrained budgets, provided wax protection and enhanced securing protocols are rigorously applied.
Ongoing monitoring of vessel humidity levels and port handling practices is advised to maintain equipment readiness upon arrival.
SEA LION International – Engineering & Logistics Division
Precision. Protection. Performance.
Get a Quote for Excavator Rotating Grapple
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]
