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SEMMachinery Soil Compactor
SEM 518/520/522
Product Advantage
Reliability:Vibrationsystemutilizeseccentric vibe pod design,extends life over 5 0 % Operation:Digital frequencymeterand three levelalarmsystemmonitormachine performance
Vibe Pod Design
·Eccentric vibe pod design,extends system life by 5 0 % ·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
High Amplitude
Low Amplitude
·The position of the steel shot and the eccentric weight combine to produce the maximum centrifugal force
Cooling System
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 49 “C
Shunt tank provides constant system pressure and provides easy visual check of coolant level
·The position of the steel shot is offset by the eccentric weight to produce a lower centrifugal force
Vibratory Hydraulic System
Closed center hydraulic system
•Improves efficiency by 2 0 % 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
Vibratory hose
Optimized hose routing,prolongs hose life
Cat? Product LinkTM
• Cat? Product LinkM will support your business,and accurately convey information of the equipment to relevant personnel ina timely and effective manner for your better equipment management.
Powertrain
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 3 4 % compared to competitors'at 3 0 %
• Optimized transmission ratio,1st gear has higher travel speed
Dashboard
Vibratory FrequencyMeter
● 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
| DisplayContents | |
| Transmission Oil Temperature | Battery Voltage |
| VibratoryFrequencyMeter | |
| Working Hours | |
| Items | Unit | SEM518 | SEM520 | SEM522 |
| Operating Weight | kg | 18.000 | 20,000 | 22.,000 |
| Compaction | ||||
| Vibration Frequency (High/Low) | Hz | 30/28 | 30/28 | 30/28 |
| Amplitude (High/Low) | mm | 2/1 | 2/1 | 2/1 |
| Excitation Force (High/Low) | kN | 327/188 | 360/208 | 374/215 |
| Static Pressure | N/cm | 415 | 461 | 507 |
| Engine | ||||
| Model | WP6G175E20 | WP6G175E20 | WP6G190E20 | |
| Rated Power | kW | 129 | 129 | 140 |
| Speed | r/min | 2,000 | 2,000 | 2,000 |
| Fuel Tank Volume | L | 262 | 262 | 262 |
| Hydraulic Oil Tank Volume | L | 80 | 80 | 80 |
| Drum | ||||
| Drum Width | mm | 2,130 | 2,130 | 2,130 |
| Drum Diameter | mm | 1,600 | 1.600 | 1,600 |
| Drum Thickness | mm | 40 | 40 | 40 |
| Tires | ||||
| Tires Type | 20.5-25 | 20.5-25 | 20.5-25 | |
| Speed | ||||
| F/R I | km/h | 2.98 | 2.98 | 2.98 |
| F/R ⅡI | km/h | 5.88 | 5.88 | 5.88 |
| F/RⅢIII | km/h | 9.60 | 9.60 | 9.60 |
| Swing Angle | 。 | ±12 | ±12 | ±12 |
| Steering Angle | 。 | ±33 | ±33 | ±33 |
| Outer Turning Radius | mm | 6,350 | 6,350 | 6,350 |
| Max. Gradeability | % | 34 | 34 | 34 |
| Size | A | B | C | D | E | F | G | H | β |
| SEM518 | 6,250 | 3,200 | 2,310 | 2,130 | 1,600 | 3,100 | 460 | 2,160 | 33° |
| SEM520 | 6,250 | 3,200 | 2,310 | 2,10 | 1,600 | 3,100 | 460 | 2,160 | 33° |
| SEM522 | 6,250 | 3,200 | 2,310 | 2,130 | 1,600 | 3,100 | 460 | 2,160 | 33° |
| The swing angle of the front and rear frame±12 | |||||||||
MachineApplications
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
TiltableCab
SEMoffers a tiltable cabin which provides more convenient maintenance of the pump,transmission,hose and electronic components
Hydraulic tiltable cab is optional
| Optional Accessories | |||
| Configeration (O=Optional) | SEM518 | SEM520 | SEM522 |
| High ambient cooling system | 0 | 0 | 0 |
| Cold startpreheater | 0 | 0 | 0 |
| Cab/ROPS Cab with HVAC | 0 | 0 | 0 |
| Cab/ROPS Cab with heater only | 0 | 0 | 0 |
| Rear rain wiper(cab only) | 0 | 0 | |
| Seat plus(rotatable seat) | 0 | 0 | 0 |
| Cab hydraulic tilt device | 0 | 0 | 0 |
| Beacon | 0 | 0 | 0 |
| Radio | 0 | 0 | 0 |
| Frontal sun shade | 0 | 0 | 0 |
| Product link | 0 | 0 | 0 |
| Compaction meter | 0 | 0 | |
| 20.5-25Diamond tire | 0 | 0 | 0 |
| 20.5-25agriculture tire | 0 | 0 | 0 |
| Diamond shape padfoot with steel scraper | 0 | 0 | 0 |
| Square shape padfoot with steel scraper | 0 | 0 | |
CaterpiarQgou)Ldres:aodigoCitydgrc,ipde:
trademarks of Caterpillar (Qingzhou) Ltd.and may not be used without permission.
e Version: May 2025
