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Caterpillar 320 Hydraulic Excavator

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Caterpillar Hydraulic Excavators
Caterpillar 320
Caterpillar 320
Caterpillar 320 interior
The Caterpillar 320 hydraulic excavator was introduced in 1992 in Japan and Belgium. Production began in Indonesia in 1993.

[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.

Highest Serial #
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