Komatsu PC45R-8 vs. Caterpillar 305C CR

12 reasons to buy Komatsu PC45R-8:

Sizes

Counterweight ground clearance

640 mm and 615 mm

4 % more or 25 mm

Operation

Engine oil volume	8 l. and 7 l.	12 % more or 1 l.
Hydraulic system overflow valve pressure	25000 kPa and 24500 kPa	2 % more or 500 kPa
Hydraulic pump flow rate	129.5 l/min and 130 l/min	0 % less or 0.5 l/min

Motor

Power measured at

2500 rev / min and 2400 rev / min

4 % more or 100 rev

Booms/sections features 2

Maximum excavation depth	3895 mm and 3890 mm	0 % more or 5 mm
Maximum radius along ground level	6160 mm and 6050 mm	2 % more or 110 mm
Maximum loading height	4395 mm and 4050 mm	8 % more or 345 mm

Booms/sections features 1

Maximum radius along ground level	5810 mm and 5650 mm	3 % more or 160 mm
Maximum loading height	4190 mm and 3800 mm	9 % more or 390 mm
Maximum vertical wall digging depth	2600 mm and 2530 mm	3 % more or 70 mm
Maximum excavation depth	3520 mm and 3490 mm	1 % more or 30 mm

9 reasons to buy Caterpillar 305C CR:

Sizes

Width to outside of caterpillar track

1980 mm and 1900 mm

4 % more or 80 mm

Operation

Fuel Capacity	72 l. and 51.5 l.	28 % more or 20.5 l.
Cooling system fluid volume	11 l. and 7.5 l.	32 % more or 3.5 l.
Hydraulic system fluid volume	78 l. and 33 l.	58 % more or 45 l.
Generator current strength	50 amperes and 40 amperes	20 % more or 10 amperes

Motor

Displacement	2.5 l. and 2 l.	20 % more or 0.5 l.
Full power	36.7 kW and 32.9 kW	10 % more or 3.8 kW
Effective power	35 kW and 28.9 kW	17 % more or 6.1 kW

Booms/sections features 2

Maximum vertical wall digging depth

2940 mm and 2865 mm

3 % more or 75 mm

Neutral reasons:

Swing device

Rotation speed

9 rev / min and 9 rev / min

Sizes

Caterpillar track length on ground level	1940 mm and 2580 mm
Height to cab upper part	2560 mm and 2550 mm
Clearance	340 mm and 340 mm
Rear platform swing radius	1470 mm and 990 mm

Operation

Working weight	4750 kg and 5320 kg
Operating voltage	24 V and 12 V

Motor

Manufacturer	Komatsu and Mitsubishi
Model	4D84E-3FA and S4Q2-T
Cylinders number	4 and 4

Carrier

Shoe dimensions	400 mm and 400 mm
Maximum travel speed	4.6 km/h and 4.6 km/h
Track width	1500 mm and 1580 mm

Booms/sections features 2

Unit load-transfer length	5485 mm and 5460 mm
Maximum cut height	5955 mm and 5630 mm
Unit load-transfer height	2560 mm and 2550 mm

Booms/sections features 1

Maximum cut height	5760 mm and 5370 mm
Unit load-transfer height	2560 mm and 2550 mm
Unit load-transfer length	5485 mm and 5330 mm

Images

Sizes

2. Width to outside of caterpillar track	1900 mm	2. Width to outside of caterpillar track	1980 mm
4. Caterpillar track length on ground level	1940 mm	4. Caterpillar track length on ground level	2580 mm
5. Clearance	340 mm	5. Clearance	340 mm
7. Height to cab upper part	2560 mm	7. Height to cab upper part	2550 mm
8. Rear platform swing radius	1470 mm	8. Rear platform swing radius	990 mm
15. Counterweight ground clearance	640 mm	15. Counterweight ground clearance	615 mm

Carrier

6. Track width	1500 mm	6. Track width	1580 mm
14. Shoe dimensions	400 mm	14. Shoe dimensions	400 mm

Booms/sections features 1

1. Unit load-transfer length	5485 mm	1. Unit load-transfer length	5460 mm
3. Unit load-transfer height	2560 mm	3. Unit load-transfer height	2550 mm
9. Maximum cut height	5955 mm	9. Maximum cut height	5630 mm
10. Maximum loading height	4395 mm	10. Maximum loading height	4050 mm
11. Maximum radius along ground level	6160 mm	11. Maximum radius along ground level	6050 mm
12. Maximum vertical wall digging depth	2865 mm	12. Maximum vertical wall digging depth	2940 mm
13. Maximum excavation depth	3895 mm	13. Maximum excavation depth	3890 mm