Ground rollers BOMAG BW 211 D-4 BW 211 PD-4 is designed for compaction of various soil types. Model D-4 is primarily used in the processing of polymannose and granular soil (sand, gravel), rock dust, and hydraulically binding materials. In turn, the rink PD-4 is ideal for packing of soil mixtures with high water content.

Rollers rollers are equipped with special scrapers that prevent soil sticking to their surfaces, protecting from mechanical damage and provide silent running. Easy access to the major operating units of rollers allows you to easily make necessary repairs and replacement of defective parts. It should be noted that all the components are made from high quality durable materials, which ensures their durability and long service life.

The main body of ground rollers is completely sealed, which prevents clogging of the internal parts. Special EVIB system produces accurate measurements of the density of the treated soil layer using two sensors. When it reaches the maximum level of summarization, the display displays warning icons. The results of performed operations are stored in the system memory. Rear axle equipped with limited slip differentials that allow you to distribute the efforts between the wheels except their spin.The antiskid system allows for soil compaction on steep slopes.

The operator provides a spacious cabin with adjustable seat that allows you to take the most comfortable position during the manufacturing process. The dashboard, steering wheel and manual control lever located at an optimal distance from the seat. While you are onsite, the user almost does not feel the vibrations, making operation of these rollers is absolutely harmless to health. Emergency stop and an audible signal reversing to avoid accidents.

Technical characteristics of ground rollers BW 211 D-4 BW 211 PD-4

Model BW 211 D-4 BW 211 PD-4
Dimensions
Working width, mm 2130 2130
Working weight, t 10,9 11,9
Static linear load, kg/cm 30
Engine
Manufacturer Deutz Deutz
Type TCD 2013 L04 TCD 2013 L04
Power, kW 99 99
Rotation speed, rpm 2200 2200
The number of cylinders 4 4
Cooling water water
Fuel diesel diesel
Drive system hydrostatic hydrostatic
The service brake hydrostatic hydrostatic
Handbrake hydromechanical hydromechanical
Rollers and road wheels
Tire size 23.1-26/12PR 23.1-26/12PR
The number of projections on the Cam drum 150
The height of the projection of the Cam drum, mm 100
The area of the ledge of the Cam cylinder, cm2 137
Vibrating device
Drive system hydrostatic hydrostatic
The amplitude of vibrations, mm 1,80/0,95 1,70/0,86
Frequency, Hz 30/36 30/36
Centrifugal force kN 240/125 275/202
General characteristics
Movement speed, km/h 6/7/8/12 6/7/8/12
Max. gradeability (without/with vibration) % 50/47 53/50
The turning radius of the rink on the outer contour of the track, mm 3494 3494
Fuel tank capacity, l 340 340
Compaction of the soil, m3/h
Stone chippings (layer thickness 0.70 m) 400-800 400-800
Gravel, sand (layer thickness 0.50 m) 270-540 270-540
The soil mixture (layer thickness 0.40 m) 220-440 220-440
Soft soil, clay (layer thickness of 0.20/0.25 m) 110-220 160-320