Caterpillar 320 Hydraulic Excavator
From RitchieWiki
[edit] Features
The 320 has two different engine configurations: a Cat 3116 or 3066. Both are turbocharged diesel engines producing 128 flywheel horsepower (FWHP). It comes standard with a variable flow hydraulic system with a power and work mode selector, pilot activated control, horsepower summation control, a high level of operator comfort, large cross-section design for the boom and stick, a modified X-shaped carbody, increased stick and bucket pressure, and increased pressure in the travel circuit. It is available with a standard, narrow or long undercarriage.
Standard undercarriage units were manufactured in Japan, with a 3XM, 7GJ, 7WK, or 8LK serial number prefix; in Belgium, with a 4ZJ prefix; and in Indonesia, with an 8HL prefix.
Narrow undercarriage units were manufactured in Japan, with a 1XM prefix; and in Belgium, with a 6KM or 9WG prefix.
Long undercarriage units were manufactured in Japan, with a 1KL, 1TL, 2DL, 4BK, 4JM, 8HJ, or 9KK prefix; and in Belgium, with a 3XK prefix. All long undercarriage units have a large lifting capacity.
The 1KL, 8LK, and 9KK units have in-line mounted pumps.
The 3XM, 7WK, 8LK, and 9KK units have modified cabs.
[edit] Modifications
Production of 1TL and 7WK ended in 1992; 4BK ended in 1993.
In 1993 Caterpillar modified the cab on two Belgian units, beginning with a 3XK00822 and 4ZJ00454 prefix.
Production of 1KL, 7GJ, 8LK, and 8HL ended in 1994.
Cat introduced a new Indonesian unit in 1995, with a 2BN prefix.
Production of 8HJ ended in 1995; 1XM, 2DL, 3XM, 4JM, 9KK, and 2BN ended in 1996.
Based on data from the sales database of Ritchie Bros. Auctioneers, it is estimated that more than 32,200 Caterpillar 320 hydraulic excavators have been produced.
| Belgium | |
| 3XK | 03786 |
| 4ZJ | 00824 |
| 6KM | 00360 |
| 9WG | 01411 |
| Japan | |
| 1KL | 00475 |
| 1TL | 00388 |
| 1XM | 00195 |
| 2DL | 03026 |
| 3XM | 05054 |
| 4BK | N/A |
| 4JM | 03941 |
| 7GJ | 04517 |
| 7WK | 00074 |
| 8HJ | 00845 |
| 8LK | 01468 |
| 9KK | 05648 |
| Indonesia | |
| 2BN | 00714 |
| 8HL | 00213 |
| Total = 32,299 | |
