The Cat 308E mini excavator has an operating weight of
approximately 8,150 kg. Its overall length is 6,090 mm, width 2,300
mm, and height 2,710 mm. The track gauge measures 1,800 mm, with a
track shoe width of 450 mm and a minimum ground clearance of 380
mm.
Equipped with a Cat C2.4 turbocharged engine, it delivers a rated
power of 42 kW at 2,200 rpm. The maximum digging radius reaches
6,240 mm, and the maximum digging depth is 3,850 mm. It features a
bucket digging force of 62 kN and a travel speed of 2.5/4.8 km/h,
with a climbing capacity of 70%.
The fuel tank capacity is 130 L, the hydraulic system oil capacity
is 70 L, and the engine oil capacity is 9.5 L. The standard bucket
capacity ranges from 0.25 to 0.4 m³, suitable for light to
medium-duty excavation and landscaping tasks.
Engineering
The upper frame 采用 a high-strength steel structure, ensuring
durability while keeping the overall weight optimized for
maneuverability. The boom and stick are reinforced with internal
bracing, enhancing load-bearing capacity during extended reach
operations. Critical pivot points use heavy-duty bushings with
grease fittings to reduce wear and extend service life.
The hydraulic system features a load-sensing pump that adjusts flow
based on demand, minimizing energy loss and improving fuel
efficiency. A closed-center design ensures precise control of
attachments, with smooth simultaneous operation of boom, stick, and
bucket movements.
The Cat C2.4 engine integrates advanced fuel injection technology
and a diesel oxidation catalyst (DOC) to meet emission standards.
It includes an auto-idle function that reduces engine speed when
controls are inactive, lowering fuel consumption and noise levels.
The engine’s cooling system is designed for efficient heat
dissipation in high-temperature environments.
Design
The cab is spacious with a adjustable suspension seat, offering
lumbar support for operator comfort during long shifts. Controls
are arranged intuitively, with a color display providing real-time
data on fuel usage, maintenance schedules, and machine diagnostics.
Large windows and a rearview camera enhance visibility, reducing
blind spots.
- Safety & Maintenance Design
The cab meets ROPS/FOPS standards, with a reinforced frame and
impact-resistant glass. Maintenance access is simplified via large
service doors, allowing easy access to filters, fluid check points,
and the battery. A diagnostic system alerts operators to potential
issues, with error codes displayed for quick troubleshooting.
It offers three working modes (Standard, Eco, and Heavy) to balance
power and fuel efficiency for different tasks. The compact design
enables easy navigation in tight spaces, making it ideal for urban
construction, residential projects, and indoor demolition. The
undercarriage features track tensioners with grease cylinders for
easy maintenance, and the tracks are designed to minimize ground
disturbance in sensitive areas.
Value Category | Items (Related to Cat 308E Excavator) |
Compact Versatility | - Operating weight of 8,150 kg and compact dimensions (6,090 mm
length, 2,300 mm width) for tight spaces- Suitable for urban
construction, residential projects, and indoor demolition- Maximum
digging radius of 6,240 mm and depth of 3,850 mm for diverse tasks |
Efficient Performance | - Cat C2.4 turbocharged engine with 42 kW rated power, balancing
power and fuel efficiency- Load-sensing hydraulic system minimizing
energy loss- Auto-idle function reducing fuel consumption during
inactivity- Three working modes (Standard, Eco, Heavy) for
task-specific optimization |
Durability & Reliability | - High-strength steel upper frame and reinforced boom/stick with
internal bracing- Heavy-duty bushings at critical pivot points to
reduce wear- Diesel oxidation catalyst (DOC) for emission
compliance and engine longevity- Efficient cooling system for
high-temperature environments |
Operator Comfort & Safety | - Spacious cab with adjustable suspension seat and lumbar support-
Intuitive controls and color display for real-time data monitoring-
ROPS/FOPS compliant cab with reinforced frame and impact-resistant
glass- Large windows and rearview camera enhancing visibility |
Easy Maintenance | - Large service doors providing easy access to filters, fluids, and
battery- Track tensioners with grease cylinders for simplified
upkeep- Diagnostic system with error codes for quick
troubleshooting- Grease fittings at pivot points for convenient
lubrication |
