Caterpillar 312D excavadora de cadenas

The Cat 312D excavator offers the following advantages:

Excellent Power

Energy Efficiency: Equipped with a Cat® C4.2 ACERT engine rated at 72 kW (16.9 kW), this engine features ACERT™ Technology. This engine utilizes advanced technologies in the air and fuel systems, along with integrated electronics, to reduce combustion emissions while providing exceptional power and increased hydraulic pressure for increased productivity and a lower cost per ton of material moved.

Practical Eco-Mode: A standard Eco-Mode feature balances performance and fuel economy while maintaining the same digging and lifting capabilities as standard power mode. Additionally, the touch-sensitive, two-stage control maximizes fuel efficiency and reduces sound levels.

Advanced Hydraulic System

Increased Digging Force: The hydraulic system increases hydraulic pressure by 2% to improve lifting and digging forces, enhancing efficiency and performance.

Precise and Efficient Control: The hydraulic cross-sensing system utilizes both hydraulic pumps to fully support the engine, increasing productivity with faster implement speeds and stronger pivot turns. The electronic underspeed control system electronically adjusts pump output to prevent engine stalls.

Energy-saving design: Auxiliary hydraulic lines and wiring are routed at the boom base, making hydraulic circuit installation easier. This compact design reduces line lengths, reducing friction and pressure drop, and improving power efficiency. Regenerative circuits for the boom and stick conserve energy during boom lowering and stick retracting operations, lowering operating costs. Hydraulic snubbers at the rod end of the boom cylinder and both ends of the stick cylinder dampen vibration and noise, extending cylinder life.

Comfortable and convenient operation

Comfortable cab environment: The cab is spacious, quiet, and comfortable, pressurized to 50 Pa (16 psi) to reduce dust intrusion. The comfortable seat adjusts to the operator's size and weight, with an optional air suspension seat. Standard air conditioning with automatic climate control adjusts temperature and airflow, and the low-effort joystick controls maintain a natural wrist and arm posture, reducing fatigue. Easy and Intelligent Operation: The work and power mode switches have been eliminated, allowing full power to be used at all times. The boom and swing automatic priority function selects the optimal mode based on joystick movement. Furthermore, before starting the machine, the system checks for low engine oil, hydraulic oil, and engine coolant levels and provides warnings to the operator via a color Liquid Crystal Display (LCD) monitor that displays important operating and performance information in 28 different languages.

Rugged Structural Design

Stable Chassis: The X-shaped, box-section chassis structure provides excellent torsional resistance. The machine's automatically welded track roller frames are a pressed pentagonal structure, providing strength and long service life. An idler and center-section guard (standard on the LC option) help maintain track alignment when traveling or working on slopes.

Durable Working Attachment: The boom and stick are welded box-section structures constructed from multiple layers of high-strength steel plates, ensuring excellent performance and long service life. Self-lubricating bearings prevent corrosion and galling, ensuring long-lasting machine life and extending service intervals.
Easy Maintenance
Long Filter Life: Hydraulic and air filters feature long-lasting filter life, reducing replacement frequency and costs.
Easy Routine Maintenance: Most routine maintenance can be performed at ground level, making it easier for service technicians to access and saving time and money.