• 20.5-25 Diamond Tread Tires
• 20.5-25 Agriculture Tread Tires
• Cold Start (Intake Air Heating)
• Compaction Meter
• A/C (Cooling & Heating)
• High Ambient Cooling System
• Cab Hydraulic Tilting Device
• Sunshade Curtain
• Deluxe Suspension Swiveling Seat with Safety Belt
• Heater Only with Defrost
• Radio / Rotating Beacon / Rear Wiper & Washer
• Diamond Shape Padfoot with Steel Scrapers
• Square Shape Padfoot with Steel Scrapers

SEM offers a tiltable cabin which provides more convenient maintenance of the pump, transmission, hose and electronic components

• Hydraulic tiltable cab is optional

Application/Versatility

• Applications include road, railway, airfield and industry yard compaction
• Optional diamond shape pad-foot roller for compacting clay soils
• Optional square shape pad-foot roller for compacting sandy materials

High efficiency

• 50mm drum, compaction performance is 10%~15% better than competitors
• Isolated modular cooling system, works in ambient temperature of 43 ℃

Reliability

• Vibration system utilizes an eccentric vibe pod design, extends life up to 50%
• Closed center hydraulic system, world famous piston pump and motor
• Electronically controlled transmission, easy and comfortable to operate

Operation

• Digital frequency meter, monitors compaction frequency
• Three level alarm system and Engine speed guage monitor machine performance

Vibratory Frequency Meter

• Continuously displays machine compaction frequency
• Operator may select appropriate frequency to avoid excessive compaction

Three Level Alarm System

• Machine will diagnose system issues and notify the operator with 3 levels of warning indicator lights and audio alarms

Electronically controlled transmission

• Easier to shift, reduces operator fatigue and improves working efficiency
• High reliability

Axle equipped with Proportional Torque differential (PTD)

• PTD controls torque applied to the wheels based on ground conditions, improves overall traction
• Grade ability is 34% compared to competitors' at 30%
• Optimized transmission ratio, 1st gear has higher travel speed

• Cat ® Product Link™ will support your business, and accurately convey information of the equipment to relevant personnel in a timely and effective manner for your better equipment management.

Closed center hydraulic system

• Improves efficiency by 20% over the open center system
• Reduces oil contamination, prolongs life of hydraulic system
• Maintains higher pressure and smaller energy loss
• Allows for simpler hose routing
• Requires smaller volume hydraulic tank, reduces maintenance cost

World class vibratory hydraulic components

• SEM518/520 utilize Sauer piston pump and motor
• SEM522 utilize Rexroth piston pump and motor

Vibratory hose

• Utilize Eton hoses and joints, high reliability
• Optimized hose routing, prolongs hose life

Isolated modular cooling system

• Suction style fan pulls low temperature air through the radiator, providing superior cooling capability
• Optional high ambient cooling system allows the machine to work in ambient temperature up to 50 ℃

Shunt tank provides constant system pressure and provides easy visual check of coolant level

• Eccentric vibe pod design, extends system life by 50%
• Steel shot moving inside closed eccentric block, stable and reliable vibe amplitude, reduces impact to motor, prolongs maintenance period of vibratory system
• Completely sealed eccentric gear eliminates contamination, prolongs bearing life
• SEM520/522 are equipped with a 50 mm thick drum compared to competitors with a 40 mm thick drum, provides increased compaction performance versus the competition