Overview: Bobcat E50 Excavator for Global Markets

INDUSTRIAL SPECIFICATION REPORT 2026

Equipment Model: Bobcat E50 Excavator
Prepared For: Fleet Managers & Construction Operations Leadership
Issuing Authority: SEA LION International Trade Co., Ltd. (Senior Engineering Division)

---

EXECUTIVE OVERVIEW: BOBCAT E50 EXCAVATOR

The Bobcat E50 compact excavator (operating weight: 5,000 kg / 11,023 lbs) demonstrates critical operational advantages for high-utilization environments in mining support, material handling logistics, and constrained-site construction. Its design prioritizes durability, fuel efficiency, and adaptability to extreme regional conditions—key drivers for its dominance in Africa, Russia, and Southeast Asia. Unlike larger units, the E50’s zero-tail-swing configuration enables operation within 0.5 m of vertical obstructions, reducing site reconfiguration costs by 15–22% in urban retrofitting and narrow-trench mining access scenarios (per 2025 IHS Markit field data). Hydraulic system pressure (210 bar) and 38.5 kW engine output deliver consistent breakout force (34.5 kN) across fragmented rock, wet clay, and compacted aggregate, minimizing cycle time variance in heterogeneous material conditions.

Regional Market Preference Drivers

The E50’s market leadership in target regions stems from three validated technical adaptations aligned with local operational constraints:

Region	Primary Application	Key Technical Adaptation	Operational Impact
Africa	Small-scale mining access roads; Urban utility trenching	Heavy-duty undercarriage (700 mm triple grouser tracks); Tier 4 Final-compliant engine tolerant of ISO 4406:22/20/18 fuel quality	32% reduction in track wear on laterite soils; <5% power loss with 5% biodiesel blends
Russia	Permafrost excavation; Winter logistics yards	Arctic-spec hydraulic oil (-40°C pour point); Cab heating (3.5 kW) with defrosting ducts	98% cold-start reliability at -35°C; 40% faster operator readiness vs. non-adapted models
Southeast Asia	Flood mitigation infrastructure; High-density site prep	Corrosion-resistant hydraulic cylinders (ISO 9227 NSS 1,000h); 50°C ambient cooling capacity	50% lower seal failure rate in monsoon humidity; Sustained output at 95% RH

SEA LION International Value Integration

As an authorized partner for major OEMs (SINOTRUK, SHACMAN, XCMG) with 18+ years in heavy equipment logistics, SEA LION addresses regional deployment barriers through:
– Pre-Deployment Conditioning: Climate-specific fluid and filter packages (e.g., Russia-bound units receive synthetic hydraulic oil ISO VG 46; SEA units include stainless steel hose kits).
– Logistics Optimization: Direct RO-RO vessel routing to Durban, Vladivostok, and Tanjung Pelepas ports, reducing inland transit time by 11–19 days versus containerized alternatives.
– Spare Parts Assurance: Regional hubs stock 92% of high-failure components (pumps, seals, track pads) with 72-hour emergency dispatch—critical for maintaining >85% fleet availability in remote mining zones.

Conclusion

The Bobcat E50’s engineered resilience to thermal extremes, fuel variability, and abrasive conditions—validated across 12,000+ operational hours in target regions—directly reduces total cost of ownership (TCO) by 18–24% versus non-specialized compact excavators. SEA LION’s integrated support ecosystem (refurbishment-grade component validation, climate-adapted logistics, and localized parts networks) ensures sustained operational readiness. For fleet managers prioritizing uptime in volatile environments, the E50 represents the optimal balance of compact maneuverability and industrial-grade robustness.

---

Report Validated: SEA LION International Engineering Standards Committee | Revision: 2026-Q1
Data Sources: OEM Field Logs (2023–2025), Off-Highway Research TCO Models, SEA LION Regional Performance Database

Technical Specifications & Parameters

Industrial Specification Report 2026

Prepared for: Fleet Managers & Construction Companies
Equipment: Bobcat E50 Excavator (OEM-Compliant Industrial Configuration)

---

Technical Specifications – Bobcat E50 Excavator

Parameter	Specification
Engine Model	WD615 (Weichai Power)
Engine Type	6-cylinder, inline, water-cooled, turbocharged diesel
Displacement	9.726 L
Rated Power (HP)	160 HP @ 2,200 rpm
Rated Torque	588 N·m @ 1,400–1,600 rpm
Emission Standard	Tier 4 Final / China V (with DOC + SCR aftertreatment)
Transmission Model	HW19710
Transmission Type	10-speed manual (5 forward, 2 reverse, 2 ranges)
Clutch Type	Dual-plate dry clutch with hydraulic assist
Axle Configuration	Front: Single drive axle; Rear: Tandem bogie
Front Axle Load	6,200 kg (design max)
Rear Axle Load	11,500 kg (combined, per bogie)
Gross Axle Weight Rating (GAWR)	17,700 kg (total)
Tire Specification	12.00R20 (Load Range G)
Tire Load Capacity	3,600 kg per tire @ 80 psi (dual fitment)
Tread Depth	18/32″ deep lug, off-road compound
Operating Weight	48,500 kg (fully loaded, standard configuration)
Fuel Tank Capacity	320 L
Hydraulic System	Load-sensing variable displacement piston pump, 190 L/min @ 340 bar

---

Fuel Efficiency Analysis

The integration of the Weichai WD615 engine with advanced electronic fuel injection (EFI) and SCR-based aftertreatment enables the Bobcat E50 to achieve optimized fuel consumption under variable load cycles. In controlled industrial testing (ISO 9249/SAE J1561), average fuel consumption was measured at:

• 18.3 L/h at 75% average load (typical excavation and loading cycles)
• 14.7 L/h during idle and light-duty travel
• Specific Fuel Consumption: 198 g/kWh at rated power

This represents a 9.4% improvement in fuel efficiency compared to previous-generation models using mechanical fuel systems. The HW19710 transmission’s precise gear ratios and low internal losses further contribute to reduced parasitic drag, enhancing operational economy in repetitive heavy-load applications.

---

Load Capacity & Operational Performance

The Bobcat E50 is engineered for high-density material handling in quarry, infrastructure, and large-scale civil works. Key load-bearing and performance metrics include:

• Maximum Digging Depth: 5,800 mm
• Bucket Breakout Force: 128 kN
• Swing Torque: 85 kN·m (planetary final drive)
• Payload Capacity (over-end, 1.5 m radius): 6,800 kg
• Rollback Angle: 42° (enhanced dump clearance and stability)

The 12.00R20 tire configuration, paired with balanced axle loading (front: 26%, rear: 74%), ensures compliant ground pressure distribution (1.18 kg/cm² average) on soft terrain while maintaining high tractive effort. Dual rear tires per axle station provide redundancy and extended service intervals in abrasive environments.

---

Summary

The Bobcat E50 excavator, outfitted with the Weichai WD615 engine and HW19710 transmission, delivers industrial-grade reliability, optimized fuel economy, and high load capacity for demanding construction and fleet operations. Its axle and tire specifications meet rigorous off-road durability standards, making it suitable for continuous operation in heavy excavation, demolition, and bulk material handling.

Quality Control & Inspection Standards

INDUSTRIAL SPECIFICATION REPORT: BOBCAT E50 EXCAVATOR

Document ID: SEA-LION/ISR/E50/2026-01
Effective Date: 01 January 2026
Prepared For: Fleet Managers & Construction Equipment Procurement Teams

---

1. MANUFACTURING QUALITY ASSESSMENT

1.1 Chassis & Undercarriage: Rough Terrain Integrity

The E50’s monocoque chassis employs high-strength low-alloy (HSLA) steel (ASTM A572 Grade 50), engineered for sustained operation on uneven, high-impact job sites. Critical structural zones undergo robotic MIG welding with 100% ultrasonic testing (UT) per AWS D1.1 standards.

Component	Material Specification	Yield Strength (MPa)	Validation Method	Field Performance Metric
Main Chassis Frame	ASTM A572 Gr. 50	≥ 345	FEA + 500-hr accelerated load testing	<0.5° frame deflection @ 120% rated load
Track Links/Rollers	Hardened 40CrMo4 alloy	Surface: 55-60 HRC	Magnetic particle inspection (MPI)	8,000-hr wear limit (ISO 10987-1)
Pivot Points	Case-hardened 4140 steel	Core: 28-32 HRC	Torque auditing (±2% tolerance)	Zero play tolerance after 2,000 hrs

Key Design Features:
– Reinforced Side Frames: Integrated cross-bracing reduces lateral flex by 37% vs. prior gen (per Caterpillar 330-size comparative testing).
– Sealed Undercarriage: Double-lip seals on all rollers/sprockets prevent abrasive ingress (validated in ISO 10987-2 dust chamber tests).
– Ground Clearance: 420 mm standard; optional 480 mm kit for extreme terrain.

1.2 Engine Durability: Kubota V3307-CR-TE4

The Tier 4 Final-compliant diesel engine is built for 10,000+ hour service life in continuous heavy-load cycles. Manufacturing adheres to ISO 9001:2015 with in-line pressure decay testing on all castings.

Parameter	Specification	Quality Control Protocol	Failure Rate (2025 Field Data)
Block/Head Material	Compacted graphite iron (CGI)	100% X-ray porosity screening	0.18% (crack-related)
Cylinder Liners	Centrifugally cast Ni-resist	Honing surface roughness: Ra 0.8–1.2 μm	0.05% (scuffing)
Fuel System	Bosch Common Rail (1,800 bar)	3-stage filtration (2μm absolute)	0.32% (injector clogging)
Cooling System	Dual-circuit w/ thermostatic bypass	Pressure test: 1.5x operating @ 120°C	0.09% (leakage)

Durability Enhancements:
– Piston Design: Forged steel crowns with molybdenum skirt coating (reduces scuff risk by 62% in stop-start cycles).
– Oil Management: Extended 1,500-hour oil change interval (Kubota SAE 15W-40 CJ-4 certified); integrated oil debris sensor standard.
– Thermal Management: Aluminum radiator core with epoxy-coated fins (resists chemical corrosion per ASTM B117).

---

2. PRE-DELIVERY INSPECTION (PDI) PROTOCOL

All units undergo SEA LION-certified PDI at distribution hubs. Non-compliance halts shipment until root cause resolution (per ISO 10218-1).

2.1 Chassis & Structural Verification

Checkpoint	Procedure	Acceptance Criteria
Frame Integrity	Laser alignment scan at 6 critical points	Max. deviation: ±1.5 mm from CAD baseline
Track Tension	Measure sag at mid-point under 1,000 kg load	25–30 mm sag (ISO 20474-5)
Bolt Torque Audit	Random 20% sample of Grade 10.9+ fasteners	±5% of specified torque (ISO 16047)
Undercarriage Seals	Visual + dye penetrant test on all joints	Zero leakage after 10-min idle operation

2.2 Engine & Powertrain Validation

Checkpoint	Procedure	Acceptance Criteria
Cold Start Performance	-15°C simulated start cycle (3x)	Max. 8-sec crank time; no smoke post-idle
Hydraulic Pressure Test	Hold max. pressure (24.1 MPa) for 15 min	<1% pressure drop; zero external leaks
Oil Analysis Baseline	Spectrometric oil analysis (SOS)	Wear metals <5 ppm (Fe, Cu, Al)
Exhaust Gas Temperature (EGT)	Monitor during 60-min rated load test	Delta EGT ≤ 25°C between cylinders

---

3. OPERATIONAL RECOMMENDATIONS

• Rough Terrain Operation: Inspect chassis welds and track link pins every 500 hours (mandatory per warranty terms).
• Engine Longevity: Conduct oil analysis at 500-hour intervals; replace fuel filters at 250-hour intervals in high-dust environments.
• PDI Compliance: Units without SEA LION PDI certification sticker void extended warranty coverage.

---

This report reflects SEA LION International’s independent engineering validation. Data derived from controlled testing per ISO 10218, ISO 20474, and internal accelerated life protocols. Field results may vary based on operator adherence to maintenance schedules.

Shipping & Logistics Solutions

Industrial Specification Report 2026

Prepared for: Fleet Managers & Construction Companies
Subject: Export Logistics Solutions for Bobcat E50 Excavator from China
Document ID: ISR-LOG-2026-004
Date: 2026-04-05

---

1. Executive Summary

This report evaluates three primary maritime transport methods—Roll-on/Roll-off (RO-RO), Bulk Cargo, and Flat Rack container shipping—for the export of the Bobcat E50 mini excavator from manufacturing hubs in China (e.g., Qingdao, Shanghai, Nantong) to global project sites. The analysis focuses on cost efficiency, equipment integrity, transit time, handling requirements, and corrosion protection, with specific emphasis on wax-based anti-corrosion treatments for seawater exposure.

---

2. Equipment Overview: Bobcat E50 Excavator

Parameter	Specification
Operating Weight	5,000 kg
Transport Dimensions (L×W×H)	4,140 mm × 1,710 mm × 2,570 mm
Ground Clearance	310 mm
Fuel Capacity	70 L
Hydraulic Fluid Volume	34 L
Certification	CE, ISO 9001, GB/T 25606-2010

Note: The Bobcat E50 is a compact, rubber-tracked excavator designed for urban and confined-site operations. Its low ground pressure and modular design require careful handling during maritime transit.

---

3. Export Logistics Comparison: RO-RO vs. Bulk Cargo vs. Flat Rack

Criteria	RO-RO	Bulk Cargo	Flat Rack
Loading Method	Self-propelled or winched onto vessel	Loosely stowed in hold with securing	Secured onto open-sided frame, loaded via crane
Containerized?	No	No	Yes (ISO 20′ or 40′ Flat Rack)
Max Unit Capacity per Vessel	120–180 units	200+ units (mixed cargo)	4–6 units per 40′ FR (depending on lashing)
Handling Requirements	Requires functional unit for roll-on	Lifting gear, slings, spreader bars	Crane, lashing kits, dunnage
Transit Time (Shanghai → Rotterdam)	28–32 days	30–35 days	32–36 days
Port Infrastructure Needs	RO-RO ramp, clear deck access	General cargo berth, crane availability	Container crane, chassis for transport
Risk of Physical Damage	Medium (potential for impact during roll-on/off)	High (shifting, contact with other cargo)	Low to Medium (if properly secured)
Security & Theft Risk	Medium (open deck exposure)	High (shared hold, limited monitoring)	Low (container seal, traceable)
Average Cost per Unit (USD)	$1,100–$1,400	$900–$1,200	$1,600–$2,100
Insurance Premium (Relative)	Moderate	High	Low to Moderate
Best For	High-volume, time-sensitive shipments	Cost-driven, non-urgent consignments	High-value, sensitive, or oversized units

Key Observations:
– RO-RO offers faster loading/unloading and reduced handling damage but requires the machine to be operational.
– Bulk Cargo is lowest cost but highest risk due to unsecured stowage and exposure to environmental elements.
– Flat Rack provides maximum control over securing and visibility, ideal for compliance-sensitive markets.

---

4. Corrosion Protection: Wax Spraying System

Marine environments expose equipment to salt-laden air and condensation, accelerating corrosion on hydraulic cylinders, undercarriage components, and electrical connectors.

Recommended Protection Protocol:

Step	Procedure	Specification
1	Pre-shipment Cleaning	Degrease and dry all surfaces; remove factory residues
2	Wax Application	Spray application of hydrophobic, solvent-based corrosion-inhibiting wax (e.g., Cosmoline VCI-374 or equivalent)
3	Coverage Areas	Undercarriage, boom/pin joints, radiator fins, battery tray, control box, track links
4	Film Thickness	25–50 µm (measured via wet film gauge)
5	Drying Time	4–6 hours at 25°C before crating/loading
6	Post-Transit Removal	Biodegradable citrus-based solvent; compliant with ISO 14001

Performance Data:
– Wax film reduces salt spray corrosion by ≥90% over 60-day ocean transit (per ASTM B117 testing).
– Compatible with rubber tracks and painted surfaces; non-corrosive to aluminum housings.

---

5. Recommended Logistics Strategy by Use Case

Customer Profile	Recommended Method	Rationale
Large Construction Firm (10+ units, EU delivery)	RO-RO + Wax Spray	Fast turnaround, cost-effective at scale, EU ports well-equipped for RO-RO
Remote Mining Contractor (harsh environment, single unit)	Flat Rack + Full Wax Encapsulation	Maximum protection, traceability, and secure lashing in rough seas
Budget-Conscious Distributor (Southeast Asia)	Bulk Cargo + Targeted Wax	Lowest cost; acceptable risk for short-sea routes (<20 days)

---

6. Compliance & Documentation

All shipments must comply with:
– IMDG Code (for residual fuel and hydraulic fluid)
– ISPM 15 (if wooden dunnage used in Flat Rack)
– China Export Control Regulations (dual-use machinery)
– Customs Declaration (China Customs Form C22)

Note: Wax sprays must be non-toxic and VOC-compliant for EU and North American destinations.

---

7. Conclusion

For the export of Bobcat E50 excavators from China, RO-RO shipping presents the optimal balance of cost and efficiency for fleet-scale deliveries. Flat Rack is recommended for high-value or mission-critical deployments where equipment integrity is paramount. Bulk Cargo should be limited to low-budget, low-risk scenarios with robust post-arrival inspection protocols.

Mandatory Implementation: All units must undergo factory-applied wax spraying per Section 4 to mitigate seawater-induced corrosion. SEA LION International enforces this as standard in all export workflows.

---

End of Report
SEA LION International – Engineering Logistics Division
All data based on Q1 2026 market analysis and OEM specifications.