SEM 660D

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