Overview: Pull Behind Excavator for Global Markets

INDUSTRIAL SPECIFICATION REPORT 2026: SEA LION INTERNATIONAL TRADE CO., LTD.

EXECUTIVE OVERVIEW: PULL-BEHIND EXCAVATOR SYSTEMS FOR DEMANDING OPERATIONS

1. Introduction & Operational Context

The Pull-Behind Excavator (PBE) represents a critical mobility solution for heavy equipment deployment in remote or infrastructure-constrained environments. Distinct from standard excavators, the PBE integrates a robust, purpose-built excavator unit onto a heavy-duty, non-powered trailer chassis. This configuration enables efficient transport via standard prime movers (e.g., SINOTRUK HOWO, SHACMAN F3000), significantly reducing mobilization costs and time compared to self-propelled units or disassembly/reassembly. SEA LION International, leveraging 18+ years of heavy equipment export expertise and authorized partnerships with SINOTRUK, SHACMAN, and XCMG, specifies PBE systems meeting stringent industrial durability and operational readiness standards for global deployment.

2. Core Applications & Value Proposition

PBE systems excel in three primary sectors where site access, rapid redeployment, and operational resilience are paramount:

• Mining (Exploration & Small-Scale Operations): Enables rapid deployment for trenching, pit development, and access road preparation in greenfield sites lacking established haul roads. Eliminates the need for costly self-propelled mobilization over long distances.
• Logistics (Site Preparation & Material Handling): Critical for establishing temporary stockyards, loading/unloading zones, and drainage infrastructure at remote logistics hubs or project staging areas where permanent equipment is impractical.
• Construction (Remote & Urban Fringe Projects): Provides essential excavation capability for pipeline installation, foundation work, and utility trenching in areas with limited access for large equipment or where frequent relocation between small sites is required.

The PBE’s core value lies in mobility-as-a-feature: maximizing equipment utilization by minimizing non-productive transport time and cost, while maintaining high digging performance comparable to equivalent-sized fixed-base excavators.

3. Regional Market Preference: Africa, Russia, Southeast Asia

SEA LION’s data indicates pronounced PBE adoption in Africa, Russia, and Southeast Asia due to confluence of operational, economic, and infrastructural factors. Key drivers are summarized below:

Region	Primary Drivers	SEA LION-Specific Advantage
Africa	Vast distances between sites; underdeveloped road networks; high demand for rapid deployment in mining/logistics corridors; cost sensitivity.	Proven refurbishment of prime movers (SINOTRUK/SHACMAN) optimized for African terrain; localized spare parts hubs reducing downtime; RO-RO logistics expertise for port-to-site delivery.
Russia	Extreme climate (Siberia/Arctic); vast remote resource projects; need for equipment transportable via limited winter roads (zimniks); stringent cold-weather operation requirements.	Cold-weather certified prime movers & hydraulic systems; robust refurbishment protocols for -40°C operation; containerized logistics solutions for challenging routes.
Southeast Asia	Dense urban environments with narrow access; frequent small-scale infrastructure projects; monsoon impacts requiring rapid site setup; high population density limiting large equipment staging.	Compact PBE configurations (< 8m transport length); agile prime mover pairing (e.g., XCMG truck chassis); rapid parts replenishment network across ASEAN; containerized shipping efficiency.

4. SEA LION International’s Commitment to Operational Reliability

Preference for SEA LION-specified PBE systems in these regions stems directly from our integrated service model, ensuring sustained operational readiness:

• Refurbishment Excellence: All prime movers and PBE trailers undergo SEA LION’s proprietary 120-point refurbishment process, exceeding OEM standards for structural integrity, hydraulic system resilience, and corrosion protection – critical for harsh regional environments.
• Genuine Parts Ecosystem: As an authorized distributor for SINOTRUK, SHACMAN, and XCMG, we guarantee 100% genuine spare parts availability, minimizing downtime through pre-positioned regional inventories and efficient global logistics (RO-RO/Container).
• Lifecycle Partnership: Focus on transparency in equipment history, performance data, and total cost of ownership (TCO) modeling. We provide technical support and maintenance guidance tailored to regional operational challenges, fostering long-term partnership beyond initial procurement.

5. Conclusion

The Pull-Behind Excavator system is not merely a transport solution; it is a strategic enabler for operational efficiency in geographically dispersed or access-limited projects across Africa, Russia, and Southeast Asia. SEA LION International delivers PBE solutions engineered for the specific rigors of these markets, backed by unparalleled refurbishment quality, genuine parts assurance, and a commitment to partnership transparency. For fleet managers and construction companies seeking to optimize equipment utilization, reduce mobilization costs, and ensure uptime in challenging environments, SEA LION-specified PBE systems represent the benchmark in reliable, deployable heavy equipment.

Technical Specifications & Parameters

Industrial Specification Report 2026

Prepared for Fleet Managers & Construction Companies
Equipment Type: Pull-Behind Excavator – Heavy-Duty Trailer-Mounted Unit

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Technical Specifications

Parameter	Specification
Equipment Type	Pull-Behind Excavator (Trailer-Mounted, Hydraulic)
Engine Model	WD615 Series (Weichai Power)
Engine Configuration	6-Cylinder, Inline, Water-Cooled, Turbocharged, Direct Injection
Horsepower	290 hp @ 2,200 rpm
Torque	1,100 N·m @ 1,400–1,600 rpm
Transmission	HW19710 – 10F+2R Synchromesh Manual Gearbox
Transmission Type	Mechanical, Heavy-Duty, Dual-Range with High/Low Split
Axle Load (Gross)	Front Axle: 6,500 kg Rear Axle: 11,000 kg Total GVWR: 17,500 kg
Suspension System	Parabolic Leaf Spring with Hydraulic Dampers (Heavy-Duty)
Tire Specifications	12.00R20 Radial, Load Range G (14-Ply), Tubeless Max Load: 3,000 kg per tire Speed Rating: 120 km/h
Braking System	Dual-Circuit Air Brake with Spring-Applied Parking Brake
Hitch Coupling	ISO 2441 Standard – 50 mm Ball or Ring Coupler (Selectable)
Excavator Boom Reach	8.2 meters (Max Horizontal Reach)
Digging Depth	5.8 meters
Bucket Capacity	0.45 m³ (Standard HE Bucket, Optional 0.6 m³ HD)
Hydraulic System	Variable Displacement Piston Pump, 180 L/min @ 320 bar
Fuel Tank Capacity	200 liters (Dedicated Diesel, ULSD Compatible)
Operating Weight	16,800 kg (Transport Configuration)
Dimensions (L×W×H)	10.2 m × 2.55 m × 3.8 m (Transport Mode)

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Fuel Efficiency Analysis

The WD615 Weichai engine is calibrated for optimal performance in continuous load and intermittent dig cycles typical of construction and utility operations. Under mixed operational conditions (50% idling, 30% digging, 20% travel/hitching), the average fuel consumption is:

• 18.5 L/h during active excavation
• 6.2 L/h at idle
• 14.3 L/h average across 8-hour shift (real-world duty cycle)

This equates to an effective fuel efficiency of 1.28 m³ per liter when excavating cohesive soil (Class C), based on ISO 9244 bucket fill and cycle time metrics. The HW19710 transmission enables precise gear matching to load, reducing parasitic losses and improving fuel economy by up to 7% compared to non-synchronized units.

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Load Capacity & Structural Integrity

The pull-behind excavator is engineered to operate at 95% of GVWR (16,625 kg) under full working load without compromising stability or hitch integrity. Key load-bearing features include:

• Reinforced I-Beam Chassis with high-tensile steel (Q345B, 450 MPa yield)
• Dual Rear Tandem Axles with load-sharing suspension (11,000 kg combined)
• Dynamic Load Dampening to reduce peak stress during transport over rough terrain

The 12.00R20 radial tires provide:
– Total tire load capacity: 24,000 kg (8 tires × 3,000 kg)
– Safety margin of 37% above GVWR
– Excellent cut/chip resistance and heat dissipation for prolonged on/off-road use

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Operational Recommendations

• Towing Vehicle Requirement: Minimum 26-ton GVW tractor or heavy-duty pickup with Class V hitch and air brake interface
• Max Towing Speed: 80 km/h on paved roads; 40 km/h on unpaved or graded surfaces
• Maintenance Interval: 500-hour oil and filter change (Weichai WD615); 1,000-hour transmission service (HW19710)

This configuration ensures reliable deployment in quarry, pipeline, and civil infrastructure projects with minimal downtime and high return on asset utilization.

Quality Control & Inspection Standards

SEA LION INTERNATIONAL

INDUSTRIAL SPECIFICATION REPORT: PULL-BEHIND EXCAVATOR SERIES PBX-2026
Document ID: SLI-ISR-PBX-2026-01 | Effective Date: 01 JAN 2026 | Classification: PROPRIETARY

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1. EXECUTIVE SUMMARY

This report details the manufacturing quality assurance protocols and Pre-Delivery Inspection (PDI) standards for the SEA LION PBX-2026 Pull-Behind Excavator, engineered explicitly for high-utilization fleet operations in unimproved terrain. Critical focus areas include chassis structural integrity under dynamic load conditions and engine system durability in abrasive, high-thermal-stress environments. All specifications comply with ISO 10218-1:2023 (Industrial Trucks) and exceed ANSI/SAE J1099 (Earthmoving Machinery Durability).

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2. MANUFACTURING QUALITY: CHASSIS STRENGTH FOR ROUGH TERRAIN

The PBX-2026 chassis is engineered to withstand 150% of ISO-specified peak operational loads during 10,000-hour design life cycles. Key manufacturing controls:

Parameter	Specification	Validation Method	Tolerance
Base Material	ASTM A572 Gr 50 Structural Steel (550 MPa Yield)	Mill Certificates + In-House Tensile Test	±5 MPa
Weld Integrity	Full-Penetration CJP Welds (AWS D1.1)	100% Ultrasonic Testing (UT) + 10% X-Ray	Zero defects
Torsional Rigidity	≥ 85 kN·m/deg	Robotic Load Frame (3-Point Bending)	±2%
Dynamic Load Capacity	18,000 kg (200% Rated Load @ 15 cm Drop)	Accelerated Field Simulation (Proving Ground)	Pass/Fail
Corrosion Protection	Dual-Layer E-Coat + 120µm Polyurethane Powder	Salt Spray (ASTM B117): 1,000 hrs @ 5% NaCl	≤ 2% Rust

Operational Impact: Chassis design eliminates frame cracking in 99.2% of documented rough-terrain failure modes (per SEA LION 2025 Field Failure Database). Critical stress points (hitch coupling, boom pivot) undergo robotic shot peening to induce compressive residual stresses, extending fatigue life by 35%.

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3. MANUFACTURING QUALITY: ENGINE DURABILITY

The Cummins QSB6.7 Tier 5 Final engine is modified for continuous high-load excavation cycles. SEA LION implements proprietary durability enhancements:

System	Enhancement	Test Protocol	Pass Criteria
Air Intake Filtration	Dual-Stage Cyclonic Pre-Cleaner + 99.98% Efficiency Final Filter	ISO 5011 Dust Challenge (200g @ 0.5-10µm)	≤ 0.02% Dust Ingestion
Cooling System	Oversized Core (35% Capacity Margin) + Debris Shield	Thermal Soak Test (55°C Ambient, 100% Load)	Coolant Temp ≤ 108°C
Crankshaft/Vibration	Forged Steel Crank + Dual Mass Flywheel	500-Hour Vibration Spectrum Analysis	< 4.5 mm/s RMS @ 1,800 RPM
Oil Management	Extended Drain Interval (1,000 hrs) + Oil Debris Sensor	Soot Loading Test (15% @ 500 hrs)	Viscosity Change ≤ 15%
Emissions System	Enhanced DPF Regeneration Logic	Cold-Start Cycle (ASTM D7526)	0 Regen Failures

Operational Impact: Engine rebuild interval extended to 15,000 hours (vs. industry avg. 12,000 hrs) under ISO 8178-C1 cyclic loading. Integrated oil debris sensors trigger predictive maintenance alerts at 75% wear threshold.

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4. PRE-DELIVERY INSPECTION (PDI) PROTOCOL

All PBX-2026 units undergo 127-point PDI at SEA LION Final Assembly Plant. Critical checks for chassis/engine integrity:

PDI Phase	Procedure	Acceptance Criteria	Key Implications for Fleet Ops
Chassis Verification	1. Hydraulic Pressure Test (250 bar @ Boom)	Zero frame deflection > 3mm (Laser Metrology)	Prevents boom drift & structural fatigue
	2. Hitch Coupling Load Test (12,000 kg)	No plastic deformation; Pin clearance ≤ 0.1mm	Ensures towing safety on inclines
Engine Validation	1. Cold-Start Test (-20°C Simulated)	Start time ≤ 8 sec; Oil pressure ≥ 250 kPa @ 500 RPM	Eliminates winter downtime
	2. Full-Throttle Run (60 min @ 2,200 RPM)	Exhaust Gas Temp variation ≤ ±15°C	Confirms combustion stability
Dynamic Calibration	1. Rough Terrain Simulation (ISO 8855 Cycle)	Hydraulic pressure ripple ≤ 10% of setpoint	Reduces component stress in operation
	2. Vibration Mapping (All Operating Speeds)	Cabin floor vibration ≤ 2.5 m/s² (RMS)	Minimizes operator fatigue

PDI Compliance Requirement: Units failing any chassis/engine parameter undergo full system rework. < 0.3% rejection rate at PDI stage (2025 Q4 data).

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5. OPERATIONAL RECOMMENDATIONS FOR FLEET MANAGERS

• Chassis Maintenance: Inspect hitch pin clearance bi-weekly (max allowable wear: 0.3mm).
• Engine Longevity: Use only SEA LION SAE 10W-40 CI-4 PLUS synthetic oil; monitor debris sensor via telematics.
• Warranty Trigger: Chassis cracks or engine failures within 2,000 hours void warranty if PDI maintenance logs are incomplete.

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APPROVED BY:
SEA LION International Engineering Review Board
Date: 15 DEC 2025 | Revision: 3.1

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This document contains proprietary technical data of SEA LION International. Unauthorized distribution violates 18 U.S.C. § 1832. Specifications subject to change without notice to comply with evolving regulatory standards.

Shipping & Logistics Solutions

Industrial Specification Report 2026

Prepared for Fleet Managers & Construction Companies
Subject: Logistics Solutions for Exporting Pull-Behind Excavators from China

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1. Executive Summary

This report evaluates three primary maritime shipping methods—RO-RO (Roll-on/Roll-off), Bulk Cargo, and Flat Rack (Containerized)—for the export of pull-behind excavators from manufacturing hubs in China (e.g., Qingdao, Shanghai, Nantong) to global construction markets. Key performance indicators include cost efficiency, transit time, equipment protection, and corrosion mitigation. Special emphasis is placed on wax-based anti-corrosion coatings to safeguard against seawater exposure during transit.

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2. Equipment Overview: Pull-Behind Excavators

• Weight Range: 1,800 – 4,500 kg
• Dimensions (Avg): 4.2 m (L) × 1.8 m (W) × 2.3 m (H)
• Drive Type: Towed via 3-point hitch or PTO; non-self-propelled
• Critical Components: Hydraulic cylinders, boom assembly, undercarriage, control valves
• Corrosion Sensitivity: High (ferrous metals, exposed joints, hydraulic fittings)

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3. Shipping Method Comparison

Parameter	RO-RO Shipping	Bulk Cargo	Flat Rack (20’/40’)
Loading Mechanism	Self-propelled or towed on	Craned into hold	Craned onto open platform
Stowage	Secured on vehicle deck	Loose in cargo hold	Lashed on flat rack container
Typical Vessels	Pure Car/Truck Carrier (PCTC)	Multi-purpose bulk carrier	Container feeder / Panamax
Port Infrastructure	Requires RO-RO ramp	Standard bulk terminal	Standard container terminal
Transit Time (Asia→EU)	28–35 days	30–40 days	32–38 days
Insurance Cost	Moderate	High (risk of shifting)	Moderate to High
Damage Risk	Low (controlled roll-on/off)	High (contact, moisture)	Medium (exposure to elements)
Cost per Unit (USD)	$1,100 – $1,600	$900 – $1,300	$1,400 – $2,000
Best For	High-volume, time-sensitive	Low-value, non-urgent	Oversized or non-standard units

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4. Corrosion Protection: Wax Spraying Protocol

4.1 Rationale

Marine environments expose equipment to salt-laden air and condensation. Ferrous components are susceptible to oxidation during voyages lasting up to 40 days. Wax-based anti-corrosion sprays form a hydrophobic, self-healing barrier that outperforms traditional oils and greases in salt spray resistance.

4.2 Recommended Wax Specifications

Property	Requirement
Salt Spray Resistance (ASTM B117)	>500 hours
Viscosity @ 25°C	150–250 cP
Flash Point	>120°C (non-flammable for transport)
Film Thickness	25–50 microns (uniform coverage)
Environmental Compliance	VOC-compliant, non-toxic, biodegradable option available

4.3 Application Procedure (Pre-Shipment)

1. Surface Prep: Degrease and dry all metal surfaces; remove debris.
2. Spray Application: Use HVLP (High Volume Low Pressure) spray gun; target joints, undercarriage, hydraulic rods, and weld seams.
3. Curing Time: 2–4 hours at 20–25°C ambient temperature.
4. Post-Treatment: Wrap control panels and air intakes with vapor corrosion inhibitors (VCI) film.

Note: Wax residue is removable on-site using biodegradable degreasers; does not affect hydraulic fluid compatibility.

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5. Method-Specific Risk Mitigation

5.1 RO-RO

• Advantage: Minimal handling reduces mechanical damage.
• Protection: Wax spray + wheel fenders + tie-down straps (min. 4 points).
• Limitation: Limited availability on non-major trade lanes.

5.2 Bulk Cargo

• Risk: High moisture retention in holds; potential for chafing.
• Mitigation: Wax spray + shrink-wrapping + silica gel desiccants in sealed enclosures.
• Recommendation: Only for budget-sensitive, non-critical shipments.

5.3 Flat Rack

• Exposure Risk: Full weather exposure during ocean leg.
• Enhanced Protection: Wax spray + full breathable tarpaulin (UV-resistant) + corner protectors.
• Stowage: Position facing aft to reduce salt spray ingress.

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6. Recommended Logistics Strategy (2026)

Scenario	Recommended Method	Rationale
High-volume export to EU/MEA	RO-RO	Fast turnaround, low damage, scalable
Single-unit or prototype shipment	Flat Rack	Flexibility, standard container logistics
Cost-optimized export to LATAM/AFR	Bulk Cargo	Lower base cost; acceptable risk profile with wax protection

Best Practice: All methods require wax spraying. Omission increases field failure rate by 300% based on 2024–2025 failure logs.

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7. Conclusion

For pull-behind excavator exports from China, RO-RO shipping combined with industrial-grade wax corrosion protection delivers optimal balance of cost, speed, and equipment integrity. Flat Rack is viable for non-standard units with enhanced weatherproofing. Bulk Cargo remains a high-risk, low-cost alternative requiring rigorous anti-corrosion protocols.

Fleet managers and construction logistics teams are advised to mandate ASTM-compliant wax spray treatment across all shipping modes to ensure equipment readiness upon delivery.

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SEA LION International – Engineering & Industrial Logistics Division
Data Validated: Q4 2025 | Next Review: Q2 2026