Excavators

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306 CR
UNITS:
Metric
Imperial
Engine Model
Cat C2.4 Turbo
Cat C2.4 Turbo
 
Cat C2.4 Turbo
Cat C2.4 Turbo
 
Cat C3.3B
Cat C3.3B
Net Power
41.7 kW
55.9 HP
 
34.9 kW
46.8 HP
 
51.8 kW
69.5 HP
Gross Power - ISO 14396
43.2 kW
57.9 HP
 
-
 
-
Displacement
2.43 l
148 in³
 
2.43 l
148 in³
 
3.33 l
203 in³
Bore
87 mm
3.4 in
 
87 mm
3.4 in
 
94 mm
3.7 in
Stroke
102.4 mm
4 in
 
102 mm
4 in
 
120 mm
4.7 in
Net Power @ 2,200 rpm - U.S. EPA Tier 4 Final/EU Stage V - ISO 9249/EEC 80/1269
41.7 kW
55.9 HP
 
-
 
-
Gross Power - SAE J1995
-
 
36.5 kW
48.9 HP
 
55.4 kW
74.3 HP
Rated Net Power - 2,400 rpm - China Nonroad Stage III, Brazil MAR-1, Equivalent to EU Stage IIIA - ISO 9249/EEC 80/1269
-
 
34.9 kW
46.8 HP
 
-
Rated Net Power - 2,200 rpm - U.S. EPA Tier 4 Final/EU Stage V - ISO 9249/EEC 80/1269
-
 
-
 
51.8 kW
69.5 HP
Operating Weight
7150 kg
15766 lb
 
8233 kg
18152 lb
 
9105 kg
20077 lb
Minimum Operating Weight with Canopy*
6410 kg
14134 lb
 
-
 
-
Maximum Operating Weight with Canopy**
7090 kg
15633 lb
 
-
 
-
Note (2)
**Maximum Weight is based on steel tracks with pads, extra counterweight, operator, full fuel tank, long stick, fixed blade and no bucket.
**Maximum Weight is based on steel tracks with pads, extra counterweight, operator, full fuel tank, long stick, fixed blade and no bucket.
 
**Maximum Weight is based on steel tracks with rubber pads, counterweight, operator, full fuel tank, long stick, blade and no bucket.
**Maximum Weight is based on steel tracks with rubber pads, counterweight, operator, full fuel tank, long stick, blade and no bucket.
 
**Maximum Weight is based on steel tracks with rubber pads, counterweight, operator, full fuel tank, long stick, blade and no bucket.
**Maximum Weight is based on steel tracks with rubber pads, counterweight, operator, full fuel tank, long stick, blade and no bucket.
Maximum Operating Weight with Cab**
7150 kg
15766 lb
 
8233 kg
18152 lb
 
9105 kg
20077 lb
Minimum Operating Weight with Cab*
6470 kg
14266 lb
 
7532 kg
16605 lb
 
8440 kg
18610 lb
Note (1)
*Minimum Weight is based on rubber tracks, operator, full fuel tank, standard stick, fixed blade and no bucket.
*Minimum Weight is based on rubber tracks, operator, full fuel tank, standard stick, fixed blade and no bucket.
 
*Minimum Weight is based on steel tracks, no counterweight, operator, full fuel tank, standard stick, blade and no bucket.
*Minimum Weight is based on steel tracks, no counterweight, operator, full fuel tank, standard stick, blade and no bucket.
 
*Minimum Weight is based on rubber tracks, no counterweight, operator, full fuel tank, standard stick, blade and no bucket.
*Minimum Weight is based on rubber tracks, no counterweight, operator, full fuel tank, standard stick, blade and no bucket.
Counterweight
250 kg
551 lb
 
250 kg
552 lb
 
250 kg
552 lb
Long Stick
44 kg
97 lb
 
82 kg
181 lb
 
66 kg
146 lb
Steel Tracks with Pads
375 kg
827 lb
 
285 kg
628 lb
 
341 kg
752 lb
Angle Blade
102 kg
225 lb
 
-
 
-
XTC Carriage (no tool)
64 kg
141 lb
 
-
 
-
Ground Pressure - Minimum Weight
35.4 kPa
5.1 psi
 
32.7 kPa
5 psi
 
36.9 kPa
5.4 psi
Ground Pressure - Maximum Weight
39.1 kPa
5.7 psi
 
35.7 kPa
5 psi
 
39.8 kPa
5.8 psi
Gradeability - Maximum
30 degrees
30 degrees
 
30 degrees
30 degrees
 
30 degrees
30 degrees
Maximum Traction Force - High Speed
31 kN
6969 lbf
 
26.1 kN
5856 lb
 
27.8 kN
6250 lb
Maximum Traction Force - Low Speed
56 kN
12589 lbf
 
62.4 kN
14035 lb
 
67.5 kN
15175 lb
Travel Speed - High
5 km/h
3.1 mile/h
 
5 km/h
3.1 mile/h
 
5.1 km/h
3.2 mile/h
Travel Speed - Low
2.8 km/h
1.7 mile/h
 
3.1 km/h
1.9 mile/h
 
3.1 km/h
1.9 mile/h
Cooling System
10 l
2.6 gal (US)
 
10 l
2.6 gal (US)
 
10 l
2.6 gal (US)
Hydraulic System
104 l
27.5 gal (US)
 
104 l
27 gal (US)
 
110 l
29 gal (US)
Hydraulic Tank
53 l
14 gal (US)
 
53 l
14 gal (US)
 
53 l
14 gal (US)
Engine Oil
8 l
2.1 gal (US)
 
9.5 l
2.5 gal (US)
 
11.2 l
3 gal (US)
Fuel Tank
130 l
34.3 gal (US)
 
145 l
38 gal (US)
 
147 l
39 gal (US)
Operating Pressure - Travel
24500 kPa
3553 psi
 
285 bar
4134 psi
 
285 bar
4134 psi
Auxiliary Circuit - Primary - Flow
90 l/min
24 gal/min
 
131 l/min
35 gal/min
 
-
Digging Force - Bucket
51.5 kN
11578 lbf
 
54.6 kN
12272 lb
 
62 kN
13946 lb
Auxiliary Circuit - Primary - Pressure
24500 kPa
3553 psi
 
285 bar
4134 psi
 
-
Type
Load Sensing Hydraulics with Variable Displacement Piston Pump
Load Sensing Hydraulics with Variable Displacement Piston Pump
 
Load Sensing Hydraulics with Variable Displacement Piston Pump
Load Sensing Hydraulics with Variable Displacement Piston Pump
 
Load Sensing Hydraulics with Variable Displacement Piston Pump
Load Sensing Hydraulics with Variable Displacement Piston Pump
Auxiliary Circuit - Secondary - Flow
33 l/min
9 gal/min
 
33 l/min
9 gal/min
 
-
Operating Pressure - Equipment
24500 kPa
3553 psi
 
285 bar
4134 psi
 
285 bar
4134 psi
Auxiliary Circuit - Secondary - Pressure
24500 kPa
3553 psi
 
285 bar
4134 psi
 
-
Digging Force - Stick - Standard
29.5 kN
6632 lbf
 
37.8 kN
8504 lb
 
42.3 kN
9509 lb
Operating Pressure - Swing
22500 kPa
3263 psi
 
250 bar
3626 psi
 
250 bar
3626 psi
Digging Force - Stick - Long
26.5 kN
5957 lbf
 
33.7 kN
7579 lb
 
35.7 kN
8032 lb
Pump Flow at 2,400 rpm
151 l/min
40 gal/min
 
167 l/min
44 gal/min
 
167 l/min
44 gal/min
Note
-
 
-
 
Flow and pressure are not combinable. Under load, as flow rises pressure goes down.
Flow and pressure are not combinable. Under load, as flow rises pressure goes down.
Maximum Auxiliary Circuit - Primary - Pressure at Pump
-
 
-
 
285 bar
4134 psi
Maximum Auxiliary Circuit - Secondary - Pressure at Pump
-
 
-
 
285 bar
4134 psi
Maximum Auxiliary Circuit - Primary - Flow at Pump
-
 
-
 
131 l/min
35 gal/min
Maximum Auxiliary Circuit - Secondary - Flow at Pump
-
 
-
 
33 l/min
9 gal/min
Boom Swing - Right
65 degrees
65 degrees
 
-
 
50 degrees
50 degrees
Boom Swing - Left
60 degrees
60 degrees
 
-
 
60 degrees
60 degrees
Machine Swing Speed
11 r/min
11 r/min
 
10 r/min
10 r/min
 
10.6 r/min
10.6 r/min
Straight Blade Width
1980 mm
78 in
 
-
 
-
Angle Blade Width
1980 mm
78 in
 
-
 
-
Straight Blade Height
390 mm
15.4 in
 
-
 
-
Angle Blade Height
400 mm
15.7 in
 
-
 
-
Height
-
 
431 mm
17 in
 
431 mm
17 in
Width
-
 
2280 mm
90 in
 
-
Width - Standard
-
 
-
 
2300 mm
90.6 in
Width - Wide
-
 
-
 
2450 mm
96.5 in
Top Guard
ISO 10262:1998 (Level II)
ISO 10262:1998 (Level II)
 
ISO 10262:1998 (Level II)
ISO 10262:1998 (Level II)
 
ISO 10262:1998 (Level I)
ISO 10262:1998 (Level I)
Roll Over Protective Structure (ROPS)
ISO 12117-2:2008
ISO 12117-2:2008
 
ISO 12117-2:2008
ISO 12117-2:2008
 
ISO 12117-2:2008
ISO 12117-2:2008
Tip Over Protective Structure (TOPS)
ISO 12117:1997
ISO 12117:1997
 
ISO 12117:1997
ISO 12117:1997
 
ISO 12117:1997
ISO 12117:1997
Operator Sound Pressure (ISO 6396:2008)
72 dB(A)
72 dB(A)
 
72 dB(A)
72 dB(A)
 
72 dB(A)
72 dB(A)
Average Exterior Sound Pressure (ISO 6395:2008)
99 dB(A)
99 dB(A)
 
98 dB(A)
98 dB(A)
 
99 dB(A)
99 dB(A)
Note
European Union Directive “2000/14/EC”
European Union Directive “2000/14/EC”
 
-
 
European Union Directive "2000/14/EC"
European Union Directive "2000/14/EC"
Track Belt/Shoe Width
400 mm
16 in
 
450 mm
18 in
 
450 mm
17.7 in
Maximum Reach
6295 mm
248 in
 
6297 mm
248 in
 
7141 mm
281.1 in
Stick Length
1580 mm
62 in
 
1665 mm
66 in
 
1820 mm
71.7 in
Vertical Wall
2710 mm
107 in
 
3604 mm
142 in
 
2991 mm
117.8 in
Swing Bearing - Height
672 mm
27 in
 
756 mm
30 in
 
756 mm
29.7 in
Maximum Reach - Ground Level
6130 mm
241 in
 
6152 mm
242 in
 
6949 mm
273.6 in
Maximum Blade Height
415 mm
16 in
 
363 mm
14 in
 
370 mm
14.6 in
Ground Clearance
306 mm
12 in
 
370 mm
15 in
 
350 mm
13.8 in
Boom In Reach
2485 mm
98 in
 
1681 mm
66 in
 
3059 mm
120.4 in
Boom Swing - Right
910 mm
36 in
 
-
 
935 mm
36.8 in
Transport Height
1755 mm
69 in
 
2558 mm
101 in
 
-
Tail Swing with Counterweight
1475 mm
58 in
 
1995 mm
79 in
 
1585 mm
62.4 in
Cab Height
2545 mm
100 in
 
2534 mm
100 in
 
2541 mm
100 in
Width over Upper House
1950 mm
77 in
 
2250 mm
89 in
 
-
Maximum Dump Clearance
4325 mm
170 in
 
5293 mm
208 in
 
4760 mm
187.4 in
Tail Swing without Counterweight
1350 mm
53 in
 
1800 mm
71 in
 
1450 mm
57.1 in
Boom Swing - Left
735 mm
29 in
 
-
 
604 mm
23.8 in
O/A Undercarriage Length
2580 mm
102 in
 
2760 mm
109 in
 
2880 mm
113.4 in
Maximum Dig Height
5835 mm
230 in
 
7341 mm
289 in
 
6736 mm
265.2 in
Maximum Blade Depth
600 mm
24 in
 
414 mm
16 in
 
407 mm
16 in
O/A Track Width
1980 mm
78 in
 
2200 mm
87 in
 
2300 mm
90.6 in
Dig Depth
3710 mm
146 in
 
4107 mm
162 in
 
4108 mm
161.7 in
O/A Shipping Length
5975 mm
235 in
 
6144 mm
242 in
 
-
Note
-
 
-
 
*Boom Height when stick is pinned in transport position with no attachments.
*Boom Height when stick is pinned in transport position with no attachments.
Overall Shipping Length - with Counterweight
-
 
-
 
6706 mm
264 in
Note (1)
-
 
-
 
**Boom Height when stick is pinned in working position with attachments. Standard Stick offers only one pin position.
**Boom Height when stick is pinned in working position with attachments. Standard Stick offers only one pin position.
Overall Shipping Length - without Counterweight
-
 
-
 
6574 mm
258.8 in
Note (2)
-
 
-
 
***With blade positioned at the rear of the machine.
***With blade positioned at the rear of the machine.
Height - Boom Working - With Tools**
-
 
-
 
2660 mm
104.7 in
Height - Boom Transport - No Tools*
-
 
-
 
2430 mm
95.7 in
Maximum Blade Height
415 mm
16 in
 
363 mm
14 in
 
370 mm
14.6 in
O/A Track Width
1980 mm
78 in
 
2200 mm
87 in
 
2300 mm
90.6 in
Track Belt/Shoe Width
400 mm
16 in
 
450 mm
18 in
 
450 mm
17.7 in
Tail Swing with Counterweight
1475 mm
58 in
 
1995 mm
79 in
 
1585 mm
62.4 in
Vertical Wall
3165 mm
125 in
 
4120 mm
162 in
 
3404 mm
134 in
Boom In Reach
2960 mm
117 in
 
2250 mm
89 in
 
3215 mm
126.6 in
Maximum Blade Depth
600 mm
24 in
 
414 mm
16 in
 
407 mm
16 in
Maximum Dig Height
6130 mm
241 in
 
7758 mm
305 in
 
7039 mm
277.1 in
Transport Height
2410 mm
95 in
 
2656 mm
105 in
 
-
Stick Length
1980 mm
78 in
 
2208 mm
87 in
 
2358 mm
92.8 in
Ground Clearance
306 mm
12 in
 
370 mm
15 in
 
350 mm
13.8 in
Swing Bearing - Height
672 mm
27 in
 
756 mm
30 in
 
756 mm
29.7 in
Width over Upper House
1950 mm
77 in
 
2250 mm
89 in
 
-
O/A Undercarriage Length
2580 mm
102 in
 
2760 mm
109 in
 
2880 mm
113.4 in
O/A Shipping Length
5950 mm
234 in
 
6257 mm
246 in
 
-
Dig Depth
4110 mm
162 in
 
4649 mm
183 in
 
4643 mm
182.8 in
Cab Height
2545 mm
100 in
 
2534 mm
100 in
 
2541 mm
100 in
Maximum Reach
6685 mm
263 in
 
6805 mm
268 in
 
7637 mm
300.7 in
Boom Swing - Left
735 mm
29 in
 
-
 
604 mm
23.8 in
Tail Swing without Counterweight
1350 mm
53 in
 
1800 mm
71 in
 
1450 mm
57.1 in
Boom Swing - Right
910 mm
36 in
 
-
 
935 mm
36.8 in
Maximum Dump Clearance
4610 mm
182 in
 
5710 mm
225 in
 
5072 mm
199.7 in
Maximum Reach - Ground Level
6535 mm
257 in
 
6671 mm
263 in
 
7460 mm
293.7 in
Note
-
 
-
 
*Boom Height when stick is pinned in transport position with no attachments.
*Boom Height when stick is pinned in transport position with no attachments.
Note (2)
-
 
-
 
***With blade positioned at the rear of the machine.
***With blade positioned at the rear of the machine.
Note (1)
-
 
-
 
**Boom Height when stick is pinned in working position with attachments. Standard Stick offers only one pin position.
**Boom Height when stick is pinned in working position with attachments. Standard Stick offers only one pin position.
Height - Boom Transport - No Tools*
-
 
-
 
2260 mm
89 in
Height - Boom Working - With Tools**
-
 
-
 
3050 mm
120.1 in
Overall Shipping Length - without Counterweight
-
 
-
 
6872 mm (270.6 in)***
6872 mm (270.6 in)***
Overall Shipping Length - with Counterweight
-
 
-
 
6872 mm (270.6 in)***
6872 mm (270.6 in)***
Air Conditioning
The air conditioning system on this machine contains the fluorinated greenhouse gas refrigerant R134a (Global Warming Potential = 1287). The system contains 0.9 kg of refrigerant which has a CO2 equivalent of 1.287 metric tonnes.
The air conditioning system on this machine contains the fluorinated greenhouse gas refrigerant R134a (Global Warming Potential = 1287). The system contains 0.9 kg of refrigerant which has a CO2 equivalent of 1.287 metric tonnes.
 
The air conditioning system on this machine contains the fluorinated greenhouse gas refrigerant R134a (Global Warming Potential = 1430). The system contains 1.0 kg of refrigerant which has a CO2 equivalent of 1.430 metric tonnes.
The air conditioning system on this machine contains the fluorinated greenhouse gas refrigerant R134a (Global Warming Potential = 1430). The system contains 1.0 kg of refrigerant which has a CO2 equivalent of 1.430 metric tonnes.
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