Backhoe bucket, With mono boom 6.70 m digging envelope, Operating weight and ground pressure – Liebherr R 956 User Manual
Page 20: Digging forces, Buckets
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20
R 956 Litronic
Backhoe Bucket
with Mono Boom 6.70 m
Digging Envelope
1
2
3
Stick length
m 2.35
2.90
3.80
Max. digging depth
m 7.15
7.70
8.60
Max. reach at ground level
m 11.10 11.50 12.40
Max. dump height
m 7.05
7.30
7.70
Max. teeth height
m 10.55 10.85 11.30
Operating Weight
and Ground Pressure
Operating weight includes basic machine with mono boom 6.70 m,
stick 2.35 m and bucket 2.35 m
3
.
Undercarriage
LC
LC-V
Pad width
mm 500
600
750
500
600
750
Weight
kg 49,550 50,150 51,400 51,650 52,250 53,500
Ground pressure
kg/cm
2
1.05 0.88 0.72
1.09 0.92 0.75
Undercarriage
HD
Pad width
mm 500
600
750
Weight
kg 51,650 52,200 53,000
Ground pressure
kg/cm
2
1.06 0.89 0.72
Optional: heavy counterweight
(heavy counterweight increases the operating weight by 2,000 kg and
ground pressure by 0.04 kg/cm
2
)
Digging Forces
1
2
3
Digging force ISO
kN
248
217
181
t 25.8
22.1
18.6
Breakout force ISO
kN
313
313
313
t 31.9
31.9
31.9
Breakout force max. ISO
345 kN (35.2 t)
Buckets
Machine stability per ISO 10567* (75 % of tipping capacity)
LC-Undercarriage
LC-V-Undercarriage
HD-Undercarriage
Stick length (m)
Stick length (m)
Stick length (m)
2.35
2.90
3.80
2.35
2.90
3.80
2.35
2.90
3.80
mm
m
3
kg
1,350 1.65 2,100
1,550 2.00 2,250
1,750 2.35 2,450
1,950 2.70 2,650
1,950 3.00 2,750
2,100 3.30 3,000
1,350 1.65 2,450
1,550 2.00 2,650
1,750 2.35 2,850
1,950 2.70 3,100
2,100 3.00 3,250
* Indicated loads are based on ISO 10567 max. stick length, lifted 360° on firm
1)
Standard bucket with Liebherr teeth Z 70 (appropriate for materials up to classification 5, according to VOB, Section C, DIN 18300)
2)
HD bucket with Liebherr teeth Z 70 (appropriate for materials above classification 6, according to VOB, Section C, DIN 18300)
Other backhoes available on request
Max. material weight
X
= ≤ 2.2 t/m
3
,
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
STD
1)
HD
2)
14 13 12 11 10 9
8
7
6
5
4
3
2
1
0 m
-10
-9
-8
-7
-6
-5
-4
-3
-2
-1
0
1
2
3
4
5
6
7
8
9
10
11
12
m
-30
-25
-20
-15
-10
-5
0
5
10
15
20
25
30
35
ft
45
40
35
30
25
20
15
10
5
0 ft
R0059
1
2
3