Dynapac CP2700 - Ground Pressure and Tire Contact Surface; Tire Pressure Effects on Ground Contact

Operation
48 4812325557EN 2018-02-19
Ground pressure (driving)
The tire contact surface can be changed by means of tire
pressure.
The high pressure on the tires provides a smaller contact
surface (1) and the low pressure on the tire provides a larger
contact surface (2).
The contact surface with the ground is very important for the
compaction result. The total weight divided by the quantity of
tires provides the correct pressure for the wheel, according to
the following table.
Ground pressure
TIRE PRESSURE (kPa)
240
350
480
620
720
830
LOAD ON THE
WHEEL (kgf)
GROUND PRESSURE (kPa)
1,125
200
240
270
300
330
340
1,375
220
260
300
330
350
380
1,825
240
280
340
380
400
430
2,250
250
310
360
410
440
480
2,750
260
320
390
440
480
520
3,000
270
330
410
460
490
540
TIRE PRESSURE (psi)
35
50
70
90
105
120
LOAD ON THE
WHEEL (kgf)
GROUND PRESSURE (psi)
2,500
29
35
39
44
47
49
3,000
31
38
44
48
51
55
4,000
35
41
49
55
58
62
5,000
37
45
52
60
64
69
6,000
38
47
57
62
70
75
6,500
39
48
59
66
71
78
Fig. - Ground contact surface
1. Contact surface with the tire (high pressure)
2. Contact surface with the tire (low pressure)