MST M-300LC Crawler Excavator Overview

[MikePhua]

Machine Introduction
The MST M-300LC is a modern crawler excavator designed to match high performance with eco-friendly technology, powered by a reliable DEUTZ TCD 6.1 L6 engine delivering 240 hp (180 kW) at 2,300 rpm. This machine is built for tough applications and challenging conditions, directing focus on efficiency, operator comfort, and safety.
Engine and Environmental Compliance

• The DEUTZ 6.1L 6-cylinder diesel engine complies with the EU Stage V emissions regulations, emphasizing reduced environmental impact and fuel consumption.
  
• Offers powerful torque and fuel efficiency, contributing to overall operating cost savings with fuel consumption reductions of approximately 12% compared to previous generations.
  

Hydraulic System

• The M-300LC features an optimized hydraulic system designed for precise control and high responsiveness.
  
• Equipped with industry-leading Kawasaki variable volume axial piston pumps providing stable, powerful flow.
  
• Maximum operating pressure reaches up to 340 bar (4,931 psi).
  
• Hydraulic tank capacity is 150 liters.
  
• The system includes 3 power modes adjusting engine speed and hydraulic flow to match work demands, including a temporary power boost feature that increases system pressure by 8% for about 6 seconds, helping handle demanding loads efficiently while protecting hydraulic components by enforcing a cooldown period before reuse.
  

Undercarriage and Mobility

• Heavy-duty, sealed crawler tracks with urethane seals and robust track tensioners ensure long life and minimize maintenance.
  
• Large upper roller cut-outs and tapered side frames assist debris cleaning, contributing to component durability.
  
• Maximum travel speeds are 3.2 km/h in low range and 5.3 km/h in high range with a 35° gradeability.
  
• Disc-type hydraulic parking brakes provide safe and reliable machine stopping.
  

Operational Comfort and Safety

• The 9S Series operator cab offers customizable ergonomics, including adjustable seats, consoles, and armrests.
  
• Advanced control interface via the Center-O control unit simplifies machine handling.
  
• Standard rearview and right-hand-side cameras enhance worksite visibility, linked to touchscreen controls for safety.
  
• Extensive use of shock-absorbing boom lifter hydraulic cylinders reduces operator fatigue and enhances precision.
  

Load and Reach

• Typical configurations include:
  • Boom length: approximately 6.25 meters (20 ft 6 in)
    
  • Arm length options: 2.5 meters (8 ft 2 in) to 3.75 meters (12 ft 4 in)
    
  • Bucket capacity: 1.35 m³ (1.76 yd³) SAE heaped, often with 600 mm triple grouser shoes for ground contact
    

Technical Terms

• Variable Volume Axial Piston Pump: A hydraulic pump that adjusts output flow to meet real-time system needs, enhancing efficiency.
  
• Gradeability: The steepest slope the machine can climb safely.
  
• Stage V Emissions: European regulatory standards aiming to reduce pollutant output from diesel engines.
  
• Boom Lifter Hydraulic Cylinder: Cylinder controlling vertical boom movement, providing power and shock absorption.
  
• Duty Cycle Power Boost: Short surge of extra hydraulic power for demanding tasks, limited by cooldown to prevent system stress.
  

Summary
The MST M-300LC crawler excavator combines robust power, efficient hydraulics, and comprehensive operator comfort with cutting-edge environmental compliance. Its advanced hydraulic system and high-performance DEUTZ engine provide excellent fuel efficiency and operation flexibility across power modes. Enhanced safety through integrated camera systems, advanced control interfaces, and carefully engineered undercarriage design make the M-300LC a competitive choice for demanding earthmoving and construction activities.