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Hitachi EX35-2: A Compact Workhorse for Urban Excavation
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Introduction
The Hitachi EX35-2, a mini excavator produced between 1991 and 1994, stands out for its compact size and robust performance, making it ideal for urban construction and landscaping projects. With a weight of approximately 3.36 tons and a transport width of 1.52 meters, it offers excellent maneuverability in confined spaces.
Key Specifications
  • Operating Weight: 3.36 tons
  • Engine Power: 19.1 kW (Isuzu 3KR2)
  • Bucket Capacity: 0.11 m³
  • Track Width: 300 mm
  • Transport Width: 1.52 m
  • Hydraulic System Relief Valve Pressure: 22.5 MPa
  • Hydraulic Pump Flow Capacity: 75 L/min
  • Swing Speed: 9 rpm
  • Maximum Digging Depth: 3.3 m
  • Maximum Reach: 5.5 m
These specifications highlight the EX35-2's suitability for tasks requiring precision and accessibility in tight areas.
Development and Market Position
Manufactured during the early 1990s, the EX35-2 was part of Hitachi's strategy to expand its mini excavator lineup. The model was well-received for its reliability and performance, contributing to Hitachi's reputation in the compact equipment sector. While specific sales figures for the EX35-2 are not readily available, its enduring presence in the used equipment market suggests a strong legacy.
Applications
The EX35-2 is versatile, commonly used in:
  • Urban Construction: Ideal for digging foundations and trenches in areas with limited access.
  • Landscaping: Efficient for tasks like planting trees and installing irrigation systems.
  • Utility Work: Suitable for installing and maintaining underground utilities.
  • Demolition: Capable of removing small structures and debris.
Its compact size allows it to operate in spaces where larger machines cannot, making it a valuable asset in urban settings.
Maintenance and Longevity
Anecdotal accounts suggest that the EX35-2, when well-maintained, can serve reliably for thousands of hours. Regular maintenance, including timely oil changes, hydraulic system checks, and track inspections, is crucial to prolonging its lifespan. For instance, a unit with 3,505 operating hours has been noted, indicating the machine's potential longevity with proper care.
Challenges and Considerations
Potential buyers should be aware of:
  • Age-Related Wear: As a 1994 model, components may have experienced wear and tear.
  • Parts Availability: While Hitachi provides support, sourcing parts for older models can be challenging.
  • Hydraulic System Maintenance: Ensuring the hydraulic system remains leak-free is vital for optimal performance.
Conclusion
The Hitachi EX35-2 remains a testament to engineering excellence in compact excavators. Its blend of power, precision, and portability makes it a valuable tool for various applications, especially in urban environments. Prospective buyers should weigh its capabilities against potential maintenance needs to determine its suitability for their specific requirements.
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