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RT20 Roughterraincrane
| Overall length:12000mm |
| Overall width:2750mm |
| Overall height:3650mm |
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Introduction
Notes: Explanations to Lifting Load
1) The rated lifting load value given in the table is the maximum lifting capacity when the crane is set on solid and level ground. The load should not exceed 75 % of the tip-over load;
2) The total rated lifting load given in the table includes the weight of hook and slings;
3) The working radius given in the table is the actual value including the deformation amount of the boom, so lifting operation should be carried out as per working radius.
4) 75 % of the tip-over load takes into account wind force 6, i.e. lifting operation still can be carried out with fully-extended outriggers when the wind pressure reaches 125N/m2, but lifting operation with tyres or traveling with load are prohibited.
Specifications
RT20 Main technical parameters table in travel state
|
Category |
Items |
Units |
Parameters |
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|
Outline Dimension Parameters |
Overall length |
mm |
12000 |
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|
Overall width |
mm |
2750 |
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|
Overall height |
mm |
3650 |
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|
Axle base |
mm |
3600 |
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|
Tread |
mm |
2250 |
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Weight Parameters |
Dead weight in travel state |
Kg |
24000 |
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Axle load |
Front axle |
Kg |
12650 |
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|
Rear axle |
Kg |
11350 |
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|
Power Parameters |
Engine rated output |
Kw/(r/min) |
140/2200 |
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|
Engine rated torque |
N.m(r/min) |
760/1400~1600 |
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|
Travel Parameters |
Travel speed |
Max. travel speed |
Km/h |
40 |
|
|
Turning radius |
Min. turning radius |
m |
9.65 |
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|
Min. turning radius of boom head |
m |
3.23 |
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Min. ground clearance |
mm |
315 |
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Approach angle |
° |
18 |
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Departure angle |
° |
18 |
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Braking distance (at 30km/h) |
m |
≤8.5 |
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Max. grade ability |
% |
50 |
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Max. outside noise during accelerating |
dB(A) |
84 |
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RT20 Main Technical Parameters Table in Lifting State
|
Category |
Items |
Unit |
Parameters |
|||
|
Main Performance Parameters |
Max. total rated lifting load |
t |
20 |
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Min. rated working radius |
m |
3 |
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Max. load moment |
Base boom |
KN.m |
697 |
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Fully-extended boom |
KN.m |
552 |
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Outrigger span |
Longitudinal |
m |
5.83 |
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Lateral |
m |
5.6 |
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Lifting height |
Base boom |
m |
10 |
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Fully-extended boom |
m |
30.7 |
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Boom length |
Base boom |
m |
9.9 |
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Fully-extended boom |
m |
31.2 |
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|
|
|
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Working Speed Parameters |
Luffing time |
Boom raising time |
s |
55 |
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Boom descending time |
s |
36 |
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Boom telescoping time |
Boom fully-extended time |
s |
80 |
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Boom fully retracting time |
s |
48 |
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Max. swing/slewing speed |
r/min |
2.0 |
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Outriggers telescoping time |
Horizontal outriggers |
Extending synchronously |
s |
16 |
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Retracting synchronously |
s |
11 |
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Vertical outriggers |
Extending synchronously |
s |
30 |
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Retracting synchronously |
s |
30 |
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Hoisting speed (wire rope is at the 4th layer) |
Main winch |
Full load |
m/min |
140 |
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No load |
m/min |
110 |
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Auxiliary winch |
Full load |
m/min |
140 |
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|
No load |
m/min |
90 |
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