The SR20M roller is a super-heavy vibratory roller that can carry out compacting work on different road and construction projects, through the use of its own weight and vibration force, providing reliable quality and high efficiency.

The SR20M can be used with various non-cohesive materials, such as gravel, crushed stone, sand/gravel mixtures, and concrete. It is the ideal compaction equipment for highways, mines, dams, airports, ports, industrial sites, and groundwork on construction projects.

The machine has the following features:
●  Mechanical drive, electrically controlled power shift transmission;
●  Hydraulic vibration and steering;
●  Double vibration amplitude, double frequency;
●  Unique gas pipeline control providing more convenient and flexible operation of the brake and clutch, increasing safety and reliability;
●  The gear shift and drive operations are controlled by a single lever, which is convenient, flexible and reliable. It also has an advanced structure, further easing operation

ITEM			SR20M
Weights	Operating weight(Kg)		20000
	Axle load,drum(Kg)		9900
	Axle load,wheel(Kg)		10100
	Static linear load,(at drum)(N/cm)		463
Drum and Tires	Max.Working width(mm)		2140
	Drum diameter(mm)		1550
	Drum shell thickness(mm)		40
	Number of padfeet		-
	Height of the padfoot(mm)		-
	Tire size		23.1-26-14PR
Vibratory System	Frequency,(HZ)		-
	High amplitude		28
	Low amplitude		32
	Nominal amplitude(mm)		-
	High		2.0
	Low		1.0
	Centrifugal force(KN)		-
	Maximum		355
	Minumum		210
Drive Train	Forward speed(km/h)	Ⅰ	2.55
		Ⅱ	5.03
		Ⅲ	8.3
		Ⅳ	-
	Reverse speed(km/h)	Ⅰ	2.55
		Ⅱ	5.03
		Ⅲ	8.3
		Ⅳ	-
	Max. Climbing ability(%)		30
	Drive system		Mechanical
Power Train	make&model		Shangchai SC8D175.1G2B1
	Type		Turbocharged
	Fuel		Diesel
	Cooling		Water
	Number of cylinders		6
	Rated power(kw)		128
	Rated speed(rpm)		2000
Electrical System	DC,negative ground(V)		24
	Alterntor(V，A)		28V,55A
	Batteries		-
Brakes	Service brake		Pressurized air braking
	Parking brake		spring-loaded/ mechanical
Steering	Steering system		Oscillatiing, articulating
	Steering method		Hydrostatic
	Steering angle(Grad)		±36°
	Oscillating angle(Grad)		±12°
Machine Dimensions	Overall length(mm)		6125
	Overall width(mm)		2425
	Overall height(mm)		3262
Miscellaneous	Min. Turning radius(mm)		6100
	Fuel capacity(L)		440