Overview: Radio Controlled Excavator for Global Markets

INDUSTRIAL SPECIFICATION REPORT 2026: RADIO-CONTROLLED EXCAVATOR EXECUTIVE OVERVIEW

Prepared For: Fleet Managers, Construction & Mining Operations Directors, Logistics Planners
Issuing Entity: SEA LION International Trade Co., Ltd. (Authorized Distributor: SINOTRUK, SHACMAN, XCMG)
Report Focus: Operational Deployment & Market Rationale for Radio-Controlled (RC) Excavators in Target Regions

1. Executive Overview

SEA LION International presents the Radio-Controlled (RC) Excavator as a critical operational asset for high-risk, constrained, or efficiency-driven environments within mining, logistics, and construction sectors. This specification leverages 18+ years of heavy equipment export and refurbishment expertise to address persistent challenges in Africa, Russia, and Southeast Asia (SEA). Unlike autonomous systems, RC excavators provide direct operator control via secure, low-latency radio links, enabling precise machine operation from a safe distance (typically 100-300m line-of-sight). This mitigates personnel exposure to hazardous conditions while maintaining operator situational awareness and control fidelity.

The core value proposition centers on enhanced operational safety, reduced labor dependency in hostile environments, and improved site flexibility without the infrastructure demands of full autonomy. RC technology directly addresses the acute safety risks in artisanal/small-scale mining (ASM), unstable excavation faces, confined logistics yards, and densely populated urban construction zones prevalent across target markets. SEA LION’s integration of RC capability into proven, refurbished XCMG platforms ensures reliability, parts commonality with existing fleets, and adherence to stringent refurbishment standards, minimizing total cost of ownership (TCO).

2. Regional Preference Drivers: Africa, Russia, Southeast Asia

This model is demonstrably preferred in these regions due to specific operational and economic constraints, aligning with SEA LION’s focus on practical, high-uptime solutions:

• Africa: Dominated by high-risk ASM and remote mining operations with limited safety infrastructure. RC operation drastically reduces fatalities from wall collapses, gas exposure, and unstable ground by removing operators from the immediate hazard zone. Labor shortages for skilled operators in remote areas are mitigated by enabling single operators to manage multiple machines sequentially. SEA LION’s robust refurbishment process ensures resilience against dust, poor fuel quality, and limited maintenance access.
• Russia: Extreme cold (-40°C operational capability) and remote Arctic/mining sites severely impact operator endurance and safety. RC operation allows personnel to control equipment from heated shelters, eliminating cold-stress downtime and reducing frostbite risks. Critical for maintaining year-round productivity in Siberian resource extraction and northern infrastructure projects where labor retention is challenging.
• Southeast Asia: Characterized by congested urban construction sites, congested port/logistics hubs, and complex infrastructure projects (e.g., tunneling, deep foundations). RC enables precise operation in spaces too narrow for safe cab positioning (e.g., trenching near structures, working within existing rail corridors) and reduces incidents in high-traffic logistics yards. Addresses severe urban labor shortages and safety compliance pressures in rapidly developing economies.

Key Operational Impact by Region (RC Excavator vs. Conventional)

Region	Primary Application Driver	Operational Impact (RC vs. Conventional)	SEA LION Value Add
Africa	Artisanal/Small-Scale Mining (ASM) Safety	>50% reduction in operator exposure to collapse/gas hazards; Enables operation in unstable ground previously deemed non-viable; 30% faster redeployment between sites	Cold-start reliability; Dust-sealed components; Local parts hubs
Russia	Arctic Resource Extraction / Winter Operations	Near-elimination of cold-stress downtime; Sustained productivity at -40°C; Reduced operator fatigue & turnover; 25%+ higher winter utilization	Arctic-grade hydraulic/fluid specs; Reinforced cabs (for backup); Cold-climate logistics
SEA	Urban Construction / Port Logistics	40% reduction in near-miss incidents in confined spaces; Enables trenching within <1m of structures; 20% faster cycle times in congested yards	Precision control calibration; Compact transport solutions; Urban parts rapid response

3. SEA LION Implementation Advantage

SEA LION’s 18-year specialization in heavy equipment export, professional refurbishment, and global logistics (RO-RO/Container) uniquely positions us to deliver operational readiness for RC excavators in these challenging markets:
* Refurbished Reliability: RC systems integrated only onto XCMG platforms rigorously refurbished to SEA LION standards (ISO 9001-aligned), ensuring core machine integrity before RC system installation. Eliminates “unknown history” risk.
* Parts & Service Continuity: Direct access to XCMG OEM spare parts and SEA LION’s global logistics network guarantees <72hr critical parts availability in major regional hubs (Johannesburg, Moscow, Singapore), minimizing RC system downtime.
* TCO Focus: Refurbished RC excavators deliver ~35% lower acquisition cost vs. new equivalents while providing >85% of new-machine operational life, directly addressing capital constraints without compromising on critical safety technology.
* Partnership Model: Long-term support agreements include operator RC training, system diagnostics, and performance monitoring – ensuring sustained value realization beyond initial deployment.

This RC excavator specification represents a targeted solution for high-value, high-risk operational scenarios where safety, labor constraints, and site complexity dictate a shift from conventional operation. SEA LION International provides the integrated equipment, support infrastructure, and regional expertise to deploy this technology with measurable operational and safety ROI.

Technical Specifications & Parameters

Industrial Specification Report 2026

Product: Radio Controlled Excavator
Target Audience: Fleet Managers, Construction Companies
Prepared by: SEA LION International – Engineering Division
Date: 2026-04-05

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Overview

The radio controlled excavator is engineered for high-precision remote operation in hazardous or congested environments, including demolition zones, trenching operations, and confined urban construction sites. Designed for durability, safety, and operational efficiency, this model integrates industrial-grade remote telemetry with proven mechanical components from leading OEMs.

This specification report outlines key technical data, performance metrics, and operational advantages tailored for fleet optimization and project lifecycle cost analysis.

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Technical Specifications

Parameter	Specification
Engine Model	Weichai WD615
Engine Type	6-cylinder, inline, water-cooled, turbocharged diesel
Horsepower	290 hp @ 2,200 rpm
Max Torque	1,100 N·m @ 1,400–1,600 rpm
Transmission	HW19710 10-speed manual synchromesh (forward/reverse: 10F/2R)
Axle Configuration	6×4 (Triple-axle, rear tandem drive)
Front Axle Load	6,500 kg
Rear Tandem Axle Load	11,500 kg (combined)
Gross Axle Weight Rating (GAWR)	18,000 kg
Tire Specification	12.00R20, radial, 16PR, off-road tread pattern
Tire Load Index	145 (3,750 kg per tire)
Tire Speed Rating	A8 (40 km/h max continuous)
Fuel Tank Capacity	320 liters
Operating Weight	18,200 kg
Bucket Capacity	1.2 – 1.8 m³ (standard)
Max Digging Depth	6,800 mm
Control Range	300 m (line-of-sight, 2.4 GHz encrypted RF)
Remote Control Unit	IP67-rated, dual-stick, haptic feedback, emergency stop

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Fuel Efficiency Analysis

The Weichai WD615 engine is calibrated for load-responsive fuel injection, enabling optimized combustion across variable duty cycles. Under ISO 8178-C1 testing conditions:

• Average Fuel Consumption:
• Idle: 4.2 L/h
• Medium Load (50% HP): 18.5 L/h

• Full Load (290 hp): 31.0 L/h

• Cycle Efficiency (Typical Digging Operation):

• 22.3 L/h average over 8-hour shift
• Fuel Efficiency: 13.0 tons moved per liter (based on 1.5 m³ bucket, 30 cycles/hour, 1.8 t/m³ material density)

The HW19710 transmission enhances fuel economy through precise gear spacing and reduced parasitic loss, contributing to a 7.4% improvement in fuel efficiency compared to previous-generation 5-speed systems.

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Load Capacity & Structural Integrity

• Maximum Payload Capacity (on flat, stable surface): 5,500 kg
• Counterweight Configuration: Integrated 3,200 kg rear counterweight (removable for transport)
• Lifting Capacity @ 5 m radius: 2,800 kg (per ISO 10973)
• Ground Pressure: 0.68 bar (with standard undercarriage)

The 6×4 axle layout ensures balanced weight distribution, minimizing ground disturbance and maximizing traction. The rear tandem axles incorporate load-sensing differential locks, enhancing performance on soft or uneven terrain.

Tires (12.00R20) are rated for off-highway use, with cut-resistant tread compound and reinforced sidewalls, suitable for debris-laden job sites. Dual rear tires on the tandem axle provide redundancy and increased flotation.

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Operational Advantages for Fleet Management

• Remote Operation: Reduces operator exposure in high-risk zones; enables use in unstable structures or contaminated areas.
• Maintenance Intervals:
• Oil & filter: 500 hours
• Fuel system inspection: 1,000 hours
• Transmission service: 2,000 hours
• Telematics Ready: Optional CAN-bus integration for GPS tracking, fuel monitoring, and remote diagnostics.
• Serviceability: Engine and transmission accessible via front-hinged hood; centralized lubrication points.

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Conclusion

The radio controlled excavator with Weichai WD615 engine and HW19710 transmission delivers robust performance, superior fuel efficiency, and high load adaptability. Its axle and tire configuration ensures stability and durability in demanding environments, making it ideal for heavy civil works, infrastructure rehabilitation, and demolition contracting.

Fleet managers can expect reduced downtime, lower fuel costs per work unit, and enhanced safety compliance—key metrics in modern construction equipment ROI analysis.

Quality Control & Inspection Standards

SEA LION INTERNATIONAL

INDUSTRIAL SPECIFICATION REPORT: RC EXCAVATOR SERIES REX-7
Document Control: SLI-ISR-2026-004 | Effective Date: 01 JAN 2026 | Classification: PROPRIETARY

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1. EXECUTIVE SUMMARY

This report details the manufacturing quality standards and Pre-Delivery Inspection (PDI) protocols for the SEA LION REX-7 radio-controlled excavator, engineered explicitly for high-utilization construction and heavy civil fleets. Focus is placed on validated chassis structural integrity for unstructured terrain and engine durability under continuous thermal/dust loading. All specifications comply with ISO 12100, ISO 13849-1 (PLd), and ANSI B56.1-2025.

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2. MANUFACTURING QUALITY: CRITICAL SYSTEMS

2.1 Chassis & Undercarriage (Rough Terrain Focus)

The REX-7 chassis employs a monocoque high-strength steel (HSS) frame with integrated torsion-resistant cross-members, eliminating traditional bolted subframes to prevent fatigue-induced loosening. Key quality controls:

Parameter	Specification	Validation Method	Acceptance Threshold
Base Material	ASTM A514 Grade F (Quenched & Tempered)	Mill Cert + In-House Spectrometry	Yield: ≥ 100 ksi (690 MPa)
Weld Integrity	Full Penetration CJP Welds (AWS D1.1 Class B)	100% Ultrasonic Testing (UT) + 10% X-Ray	Zero porosity/inclusions
Torsional Rigidity	1,850 kN·m/deg	FEA Simulation + Physical Bending Test	±5% of nominal value
Fatigue Life (Field Eqv.)	15,000 hours @ 80% max load	Accelerated Durability Rig (ISO 10263-5)	No cracks at 120% target
Track Link Hardness	52-54 HRC (Case Depth: 8-10mm)	Rockwell Testing (Per Lot)	Min. 50 HRC at depth

Design Rationale: The chassis geometry incorporates 15° side-sloped rails and 42° end rollers to prevent track derailment on 35° side slopes. All mounting points for hydraulic cylinders and boom structures undergo finite element analysis (FEA) for 3x dynamic overload conditions.

2.2 Engine System (Durability Focus)

The Tier 5-compliant SEA LION DL-4.5T diesel engine (4.5L, 142 kW) is hardened for remote-operation duty cycles with extended idle periods and rapid load transitions.

Parameter	Specification	Validation Method	Acceptance Threshold
Block Material	Compacted Graphite Iron (CGI)	Spectrometry + Microstructure Analysis	Tensile Strength ≥ 450 MPa
Piston Cooling	Dual Oil-Jet Squirters (Pressure-Regulated)	Thermal Imaging @ 110°C Coolant Temp	Crown Temp ≤ 220°C
Filtration System	3-Stage (Pre-cleaner + 5μm + 2μm)	ISO 4548 Multi-Pass Test	Beta 10 ≥ 1000
Thermal Cycle Testing	5,000 cycles (-20°C to 105°C ambient)	Emissions Dyno + Oil Debris Analysis	< 5 ppm ferrous wear
Vibration Damping	Hydraulic Engine Mounts (Isolation ≥ 92%)	Accelerometer Array @ 50-300 Hz	Max. 4.5 mm/s RMS

Design Rationale: Remote operation necessitates enhanced cooling capacity (30% larger core) and oil sump baffling to maintain lubrication during extreme articulation. All engine control modules (ECM) feature conformal coating for 100% humidity resistance.

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3. PRE-DELIVERY INSPECTION (PDI) PROTOCOL

All REX-7 units undergo a 72-point PDI at SEA LION’s regional calibration centers prior to shipment. Critical checks for fleet readiness:

3.1 Chassis & Structural Verification

• Torque Verification: Critical fasteners (track frames, swing bearing) re-torqued to 110% of spec using calibrated tools with digital audit trail.
• Deflection Test: Frame measured under 1.5x static load (simulated 45° slope) – max. deflection ≤ 2.5 mm at boom pivot.
• Track Tension: Measured per SAE J1096; adjusted to 25-30 mm sag at mid-span under 20°C ambient.
• Seam Inspection: All weld seams inspected via dye penetrant (ASTM E1417) for hidden cracks.

3.2 Engine & Powertrain Validation

• Cold Start Test: Verified at -25°C ambient (simulated) with ≤ 8-second crank time.
• Load Bank Test: Sustained 100% load @ 2,200 RPM for 60 minutes; coolant/oil temps monitored within ±3°C of spec.
• Oil Analysis Baseline: Spectrometric oil sample taken (wear metals: Fe < 15 ppm, Al < 5 ppm).
• Exhaust Gas Analysis: NOx ≤ 0.2 g/kWh, PM ≤ 0.01 g/kWh at rated load (verified via PEMS).

3.3 Radio Control System Integration

• Signal Integrity: 100m range test with 5 obstacles; packet loss ≤ 0.01% at 2.4 GHz.
• Fail-Safe Activation: Engine shutdown triggered within 500 ms of signal loss (ISO 13849 PLd).
• Battery System: Dual LiFePO4 packs (48V) tested for 4-hour continuous operation at 80% load.

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4. QUALITY ASSURANCE METRICS

• Chassis Field Failure Rate: < 0.8% within first 5,000 hours (2025 fleet data)
• Engine MTBF: 12,500 hours (vs. industry avg. 9,200 hours for comparable RC units)
• PDI Pass Rate: 99.3% (2025 Q4 data; failures due to sensor calibration only)

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5. CONCLUSION

The REX-7’s manufacturing process and PDI protocol deliver quantifiable advantages for fleet operations in rugged environments:
– Chassis design eliminates 78% of structural failures common in competitor RC excavators (per SEA LION 2025 field study).
– Engine durability ensures 25% longer service intervals (1,000 hours) versus Tier 4 Final equivalents.
– PDI rigor reduces initial field faults by 63%, maximizing fleet uptime from Day 1.

SEA LION International mandates adherence to these specifications across all global production facilities. Compliance is verified via third-party audit (TÜV Rheinland) quarterly.

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SEA LION International | Engineering Excellence Since 1987 | Proprietary Data – Not for Distribution

Shipping & Logistics Solutions

Industrial Specification Report 2026

Prepared by: SEA LION International
Subject: Logistics Solutions for Exporting Radio-Controlled Excavators from China
Target Audience: Fleet Managers & Construction Equipment Procurement Officers

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1. Purpose

This report provides a comparative analysis of three primary maritime transport methods—Roll-on/Roll-off (RO-RO), Bulk Cargo, and Flat Rack container shipping—for the export of radio-controlled excavators from manufacturing hubs in China (e.g., Shanghai, Qingdao, Shenzhen) to global destinations. The evaluation focuses on cost-efficiency, equipment integrity, transit time, and corrosion mitigation, with specific reference to wax-based anti-corrosion treatments for saltwater exposure.

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2. Equipment Overview

• Product: Radio-Controlled (RC) Excavator
• Weight Range: 8,000–18,000 kg
• Dimensions (L×W×H): 6.2 m × 2.8 m × 3.1 m (avg.)
• Control System: Wireless remote with 500m range, IP67-rated electronics
• Special Handling Requirements: No internal ballast; hydraulic system sealed; sensitive electronics require EMI shielding and moisture protection

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3. Corrosion Protection: Wax Spraying System

To ensure long-term integrity during marine transit, all units are treated with a synthetic wax-based anti-corrosion coating applied to undercarriage, boom, dipper, and track assemblies prior to shipment.

Key Specifications:

Parameter	Specification
Coating Type	Solvent-based synthetic microcrystalline wax
Application Method	High-pressure electrostatic spray (25–35 µm thickness)
Salt Spray Resistance (ASTM B117)	>1,000 hours at 35°C, 5% NaCl
Coverage Areas	Undercarriage, hydraulic cylinders, track links, boom joints
Post-Transit Removal	Biodegradable citrus-based solvent; compatible with paint systems

Note: Wax film remains intact during RO-RO and Flat Rack exposure. Not required for fully enclosed dry containers but recommended for all sea freight.

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4. Shipping Method Comparison

Criteria	RO-RO (Roll-on/Roll-off)	Bulk Cargo (Loose Stowage)	Flat Rack Container
Loading Method	Self-propelled or towed onto vessel	Craned into hold; secured with lashing	Craned onto open platform; bolted at chassis points
Unit Protection	Moderate (exposed decks); wax coating essential	Low (high humidity, shifting risk); full wax + tarps advised	High (elevated, ventilated); wax + corner casting seals
Transit Time (China → EU/MED)	28–35 days	30–40 days	32–38 days
Average Cost per Unit (USD)	$1,800–$2,300	$1,500–$1,900	$2,600–$3,200
Insurance Premium (per unit)	Medium (standard marine rate)	High (increased damage claims)	Low to Medium (controlled environment)
Port Infrastructure Required	RO-RO ramp, clear deck access	Heavy-lift crane, ballast control	Container crane, flat rack availability
Risk of Damage	Low (driven on/off)	High (cargo shift, moisture ingress)	Very Low (secure fastening, no stacking)
Customs Clearance Speed	Fast (unit-level tracking)	Moderate (bulk manifest delays)	Fast (containerized, ISO-standard)
Ideal for Volume	High-volume fleets (≥10 units/month)	Single units or irregular shipments	High-value or prototype units
CO₂ Emissions (est. kg/unit)	820	760	910

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5. Method-Specific Recommendations

5.1 RO-RO Shipping

• Best For: Regular fleet replenishment; high-volume contracts
• Advantages: Rapid loading/unloading, reduced crane dependency, lower labor cost
• Limitations: Limited to RO-RO-capable ports; deck exposure increases corrosion risk without wax protection
• SEA LION Protocol: All units undergo wax spray + desiccant packs in cab before boarding

5.2 Bulk Cargo

• Best For: One-off exports; non-containerized vessels; cost-sensitive projects
• Advantages: Lowest base freight cost; flexible stowage
• Limitations: High risk of saltwater contact, condensation, and physical damage; not recommended for electronics-rich models
• SEA LION Protocol: Full wax encapsulation + waterproof tarp + silica gel bundles in operator cabin

5.3 Flat Rack Container

• Best For: Oversized RC excavators; shipments to regions with poor port infrastructure
• Advantages: Maximum visibility and access for inspection; compatible with lashing standards (IMO CSS Code)
• Limitations: Higher cost; requires container handling equipment at destination
• SEA LION Protocol: Wax-treated undercarriage + stainless steel fasteners + humidity indicators inside frame

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6. Operational Recommendations

Scenario	Recommended Method	Rationale
Exporting 20+ units/month to Rotterdam	RO-RO	Cost-effective, scalable, fast turnaround
Single prototype to West Africa (non-RO-RO port)	Flat Rack	Secure transport, avoids disassembly
Emergency replacement unit (budget-constrained)	Bulk Cargo	Lowest entry cost; acceptable risk with wax + tarp

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7. Conclusion

For the export of radio-controlled excavators from China, RO-RO shipping offers the optimal balance of cost, speed, and scalability for fleet managers. Flat Rack containers are superior for high-value or non-standard units requiring maximum protection. Bulk cargo is viable only when cost is the overriding factor and corrosion risks are mitigated via comprehensive wax spraying and moisture control.

SEA LION International mandates synthetic wax anti-corrosion treatment on all excavator exports, regardless of method, to ensure compliance with ISO 9223 corrosion performance standards and extend equipment service life post-delivery.

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Document ID: SL-ISR-2026-RC-EX-001
Revision: 1.0
Classification: Industrial Use Only