Sem Brand Single Drum Sme520 20 Ton Solid Tire Rollers

• After-sales Service: 1years
• Warranty: 1years
• Type: Rammer Compactor
• Working Method: Vibration
• Axle: Biaxial Dual-Drum
• Grinding Wheel Type: Tire Grind
• Model NO.: SME520
• Compaction Depth: 40cm
• Engine Type: Diesel Engine
• Travel Speed: 35cm/s
• Centrifugal Force: 327kn
• Certification: RoHS, ISO 9001:2000, ISO 9001:2008
• Condition: New
• Climbing Ability: 34%
• Driving Speed: 2.98/5.88/9.6 Km/H
• Front and Rear Axle Load: 9, 000/9, 000 Kg
• Compaction Width: 2, 130 mm
• Transport Package: Nude
• Specification: 6250x2310x3200
• Trademark: SEM
• Origin: China
• Production Capacity: 1000PCS/Set

Product Description

SEM Brand Single Drum SME520 20 Ton Solid tire rollers 

Product Description

<sub>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 50 ºC

Shunt tank provides constant system pressure and provides easy visual check of coolant level
Vibe Pod Design
* 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.
* 520/522 are equipped with a 50 mm thick drum compared to competitors with a 40 mm thick drum, provides increased compaction
performance versus the competition.



Vibratory Hydraulic System
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
* 518/520 utilize Sauer piston pump and motor
* 522 utilize Rexroth piston pump and motor

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


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 34% compared to competitors' at 30%
* Optimized transmission ratio, 1st gear has higher travel speed


Dashboard
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


Key Features
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 ºC

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

Tiltable Cab
SEM offers a tiltable cabin which provides more convenient maintenance of the pump, transmission, hose and electronic components
* Hydraulic tiltable cab is optional



High Efficiency: The unique vibratory pod design along with 50 mm thick drum provides superior compaction performance.

Reliability: Vibration system utilizes eccentric vibe pod design, extends life over 50%.

Operation: Digital frequency meter and three level alarm system monitor machine performance.</sub>

Specification

Main Specifications
Operating weight (kg)	20000
Compaction (% of XS122)
Vibration frequency (high/low) (HZ)	30/28
Excitation force (high/low) (KN)	360/208
Static pressure (N/cm)	461
Engine
Rated power(kw)	129
Speed (r/min)	2000
Fuel tank volume (L)	262
Hydraulic oil tank volume (L)	80
Drum
Drum width (mm)	2130
Drum diameter (mm)	1600
Drum thickness (mm)	50
Tires
Tires type	20.5-25
Speed
F/R I (km/h)	2.98
F/R II(km/h)	5.88
F/R III (km/h)	9.6
Swing angle (°)	±12
Steering angle (°)	±33
Outer turning radius (mm)	6350
Max.gradeability	34%

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