Backhoe bucket, Digging envelope, Digging forces – Liebherr R 946 User Manual
Page 16: Buckets
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16
R 946 Litronic
Backhoe Bucket
with Two-piece Boom 4.30 m
Operating Weight
and Ground Pressure
Operating weight includes basic machine with two-piece boom 4.30 m,
stick 2.60 m, quick coupler 66 and bucket 1.25 m
3
(1,240 kg).
Undercarriage
NLC
LC
Pad width
mm 500
600
750
500
600
750
Weight
kg 40,750 41,200 41,850 40,850 41,300 41,950
Ground pressure
kg/cm
2
0.92 0.78 0.63
0.92 0.78 0.63
Digging Envelope
with Quick Coupler
1
2
3
4
Stick length
m 2.60
2.90
3.30
4.10
Max. digging depth
m 7.40
7.70
8.10
8.85
Max. reach at ground level
m 11.95 12.25 12.60 13.35
Max. dump height
m 9.80 10.05 10.45 10.95
Max. teeth height
m 13.65 13.92 14.25 14.85
Digging Forces
with Quick Coupler
1
2
3
4
Digging force ISO
kN
191
179
164
142
t 19.4
18.2
16.8
14.4
Breakout force ISO
kN
208
208
208
208
t 21.2
21.2
21.2
21.2
without Quick Coupler
Digging force ISO
kN
201
187
172
147
t 20.5
19.1
17.5
15.0
Breakout force ISO
kN
238
238
238
238
t 24.2
24.2
24.2
24.2
Max. breakout force with ripper bucket
and without quick coupler
300 kN (30.6 t)
Buckets
Machine stability per ISO 10567* (75 % of tipping capacity)
NLC-Undercarriage
LC-Undercarriage
Stick length (m)
Stick length (m)
2.60 2.90 3.30 4.10 2.60 2.90 3.30 4.10 2.60 2.90 3.30 4.10 2.60 2.90 3.30 4.10
mm
m
3
kg
kg
without quick coupler
with quick coupler
without quick coupler
with quick coupler
1,200 1.25 1,280 1,240
1,350 1.50 1,370 1,330
1,500 1.75 1,460 1,420
1,650 2.00 1,580 1,540
1,650 2.25 1,690 1,650
1,850 2.50 1,810 1,770
1,200 1.25 1,380 1,340
1,350 1.50 1,470 1,430
1,500 1.75 1,560 1,520
1,650 2.00 1,700 1,660
1,650 2.25 1,820 1,780
1,850 2.50 1,990 1,950
* Indicated loads are based on ISO 10567 max. stick length, lifted 360° on firm
1)
Standard bucket with teeth Z 50
2)
HD bucket with teeth Z 50
3)
Bucket for direct fitting
4)
Bucket for fitting to quick coupler
Other backhoes available on request
Max. material weight
Y
= ≤ 1.8 t/m
3
,
V
= ≤ 1.5 t/m
3
,
y
= ≤ 1.2 t/m
3
,
v
= not authorized
Cutting
width
Capacity
ISO 7451
Weight
3)
Weight
4)
STD
1)
HD
2)
Optional: heavy counterweight
(heavy counterweight increases the operating weight by 1,300 kg and
ground pressure by 0.03 kg/cm
2
)
45
50
ft
14
15
16
m
13
12
11
10
9
8
7
6
5
4
3
2
1
0
-1
-2
-3
-4
-5
-6
-7
-8
-9
-10
14
15
13 12 11 10 9
8
7
6
5
1
2
3
4
4
3
2
1
0
40
35
30
25
20
15
10
5
0
-5
-10
-15
-20
-25
-30
-35
m
0
5
10
15
20
25
30
35
40
45
50
ft
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