Optimized Engine

• Low speed engine with E-fan provides increased operating efficiency
• Enhanced fuel pre-filter eliminates water and contaminant from fuel for best fuel system protection
• The 93 desert type air cleaner provides machine reliability in most severe applications. Oil-bath type oil filter is optional

Efficient Hydraulic System

• The advanced load sensing hydraulic system with flow sharing circuits improves efficiency
• World Class hydraulic components ensure high reliability
• The optimized hydraulic system paired with the drive train reduces machine cycle time and increases productivity
• Relocated hydraulic oil tank ensures hydraulic pump’s life

Operator Station

• Premium operator station improves cab sealing and visibility
• Sliding side window and AC with fresh air circulation provide operator comfort
• Integrated relays and fuse panel. Single cabin harness connection plug provides easy service access
• Joystick hydraulic control for easy and precise operation命
• Multi-function instrument dashboard with 3-level alarm
• Adjustable suspension seat

Reliable Drivetrain

• Countershaft transmission with upgraded core components provides high reliability
• Large rim-pull in 1st gear and higher speed in 2nd gear provide high efficiency for load and carry applications
• Clutch cutoff selection switch ensures stable and safe operation
• The SEM designed and built axle equips with 10 calipers (6 for front and 4 for rear), it delivers better brake performance and longer service life

Advanced Cooling System

• The standard cooling package provides high reliability in 43°C ambient conditions. An optional package is available for 50°C ambient conditions
• Shock pad mounts ensure reliability under severe applications

Solid Structure

• Structures undergo Finite Element Analysis (FEA) and On Machine Stress Analysis (OMSA) to ensure durability
• Performance Series (PS) buckets improve loading capability
• Steering robber stopper design provides protection for frame

Serviceability

• Torque convertor is isolated from transmission making it easy to service
• Simple structure countershaft transmission delivers low maintenance cost
• Centralized lubrication points reduce maintenance time
• System pressure test ports are standard
• Easy access to external air charge connecting port
• Engine hood grill opens for easy service access
• It is easy to change brake discs with new split type caliper

Safety

• Safety design complies with all regulatory requirements
• Caterpillar Production System (CPS) leveraged in manufacturing process
• 3-point touching design provides convenient operator entering to cabin
• Backup alarm and beacon ensure machine safety
• Environment-friendly painting process

Multiple Applications

• SEM660D can be widely used in port cargo handling mineral yards, steel mill,and other high productivity demand applications
• In aggregate site, coal loading and construction etc loosen material handling utilization applications,SEM660D can load more, move faster and burn less
• Multiple work tools for selection