Caterpillar 312B L Excavator Specs

Category: Excavators ➔
Manufacturer: Caterpillar ➔
Model: 312B L ➔

Introducing the Caterpillar 312B L Excavator, a powerful and versatile machine designed for exceptional performance in various construction and excavation applications. With impressive capabilities such as a max digging depth of up to 19.9 ft and a maximum vertical wall digging depth of 17.6 ft, this excavator is equipped to handle a wide range of tasks with ease. Powered by a Cat 3064T diesel engine delivering 91 hp gross power, and featuring a robust hydraulic system with a maximum pressure of 4980 psi, the 312B L Excavator combines efficiency and reliability for optimal productivity on the job site.

Boom/Stick 1

Caterpillar 312B L Excavator Boom/Stick 1 specifications
Boom/Stick 1	boom w/ stick 2100mm
Max Cutting Height	27.01 ft (8.23 m)
Max Digging Depth	16.84 ft (5.13 m)
Max Loading Height	19.23 ft (5.86 m)
Max Reach Along Ground	25.56 ft (7.79 m)
Max Vertical Wall Digging Depth	14.54 ft (4.43 m)

Boom/Stick 2

Caterpillar 312B L Excavator Boom/Stick 2 specifications
Boom/Stick 2	Boom 14\'1\" (4300mm) / Stick 8\'2\" (2500mm)
Max Cutting Height	27.81 ft (8.48 m)
Max Digging Depth	18.21 ft (5.55 m)
Max Loading Height	20.00 ft (6.10 m)
Max Reach Along Ground	26.83 ft (8.18 m)
Max Vertical Wall Digging Depth	16.31 ft (4.97 m)
Shipping Height Of Unit	9.06 ft (2.76 m)
Shipping Length Of Unit	24.92 ft (7.60 m)

Boom/Stick 3

Caterpillar 312B L Excavator Boom/Stick 3 specifications
Boom/Stick 3	Boom 14\'1\" (4300mm) / Stick 9\'10\" (3000mm)
Max Cutting Height	28.53 ft (8.70 m)
Max Digging Depth	19.85 ft (6.05 m)
Max Loading Height	20.77 ft (6.33 m)
Max Reach Along Ground	28.30 ft (8.63 m)
Max Vertical Wall Digging Depth	17.54 ft (5.35 m)
Shipping Height Of Unit	9.06 ft (2.76 m)
Shipping Length Of Unit	24.97 ft (7.61 m)

Buckets

Caterpillar 312B L Excavator Buckets specifications
Maximum Bucket Capacity	1.1 cu yd
Minimum Bucket Capacity	0.5 cu yd
Reference Bucket Capacity	0.6 cu yd

Dimensions

Caterpillar 312B L Excavator Dimensions specifications
Ground Clearance	1.45 ft (0.44 m)
Height	9.08 ft (2.77 m)
Height To Top Of Cab	9.06 ft (2.76 m)
Length	24.92 ft (7.59 m)
Length Of Track On Ground	9.98 ft (3.04 m)
Removal Counterweight Clearance	3.02 ft (0.92 m)
Tail Swing Radius	6.99 ft (2.13 m)
Weight	29,360.00 lbs (13,317.49 kg)
Width	8.50 ft (2.59 m)
Width To Outside Of Tracks	8.17 ft (2.49 m)

Drive

Caterpillar 312B L Excavator Drive specifications
Maximum Drawbar Pull	22,930.00 lbs (10,400.89 kg)
Travel Speed	3.40 mph (5.47 kph)

Engine

Caterpillar 312B L Excavator Engine specifications
Aspiration	Turbocharged
Bore	4.10 in (10.41 cm)
Displacement	259.00 cu in (4,244.26 cu cm)
Eec 80/1269	84.00 hp (62.64 kw)
Engine Make	2236
Engine Model	Cat 3064T Diesel Engine
Flywheel Power	84.00 hp (62.64 kw)
Gross Power	91.00 hp (67.86 kw)
Iso 9249	84.00 hp (62.64 kw)
Net Power	84.00 hp (62.64 kw)
Number Of Cylinders	4
Power Measured @	1900 rpm
Sae J1349	83.00 hp (61.89 kw)
Stroke	5.20 in (13.21 cm)

Hydraulic System

Caterpillar 312B L Excavator Hydraulic System specifications
Boom Cylinder - Bore	4.30 in (10.92 cm)
Boom Cylinder - Stroke	40.00 in (101.60 cm)
Main Implement System - Maximum Flow (2x)	64.00 gpm (242.24 lpm)
Maximum Pressure - Implements	4340 psi
Maximum Pressure - Swing	3340 psi
Maximum Pressure - Travel	4980 psi
Pilot System - Maximum Flow	4.80 gpm (18.17 lpm)
Pilot System - Maximum Pressure	570 psi
Stick Cylinder - Bore	4.80 in (12.19 cm)
Stick Cylinder - Stroke	47.00 in (119.38 cm)

Operational

Caterpillar 312B L Excavator Operational specifications
Alternator Supplied Amperage	50 amps
Cooling System Fluid Capacity	4.10 gal (15.52 l)
Engine Oil Capacity	3.50 gal (13.25 l)
Fuel Capacity	66.10 gal (250.19 l)
Hydraulic Pump Flow Capacity	63.50 gpm (240.35 lpm)
Hydraulic System Fluid Capacity	42.80 gal (162.00 l)
Hydraulic System Relief Valve Pressure	4980 psi
Operating Voltage	24 V
Operating Weight	28,010.00 lbs (12,705.14 kg)
Swing Drive Fluid Capacity	0.80 gal (3.03 l)

Service Refill Capacities

Caterpillar 312B L Excavator Service Refill Capacities specifications
Cooling System	4.10 gal (15.52 l)
Engine Oil	3.40 gal (12.87 l)
Final Drive - Each	0.70 gal (2.65 l)
Fuel Tank	66.00 gal (249.81 l)
Hydraulic System - Including Tank	42.80 gal (162.00 l)
Hydraulic Tank	25.90 gal (98.03 l)
Swing Drive - Each	0.80 gal (3.03 l)

Swing Mechanism

Caterpillar 312B L Excavator Swing Mechanism specifications
Swing Speed	12 rpm
Swing Torque	22,422.00 lbs ft (30,399.75 nm)

Undercarriage

Caterpillar 312B L Excavator Undercarriage specifications
Drawbar Pull	22,930.00 lbs (10,400.89 kg)
Ground Pressure	5.51 psi
Max Travel Speed	3.42 mph (5.50 kph)
Shoe Size	19.69 in (50.01 cm)
Track Gauge	6.53 ft (1.99 m)

Weights

Caterpillar 312B L Excavator Weights specifications
Operating Weight	31,110.00 lbs (14,111.28 kg)

Our Main Office

Construction Equipment Guide
470 Maryland Drive
Fort Washington, PA 19034
800-523-2200

About Us

Construction Equipment Guide covers the nation with its four regional newspapers, offering construction and industry news and information along with new and used construction equipment for sale from dealers in your area. Now we extend those services and information to the internet. Making it as easy as possible to find the news and equipment that you need and want.

Contents Copyrighted 2026, by Construction Equipment Guide, which is a Registered Trademark, registered in the U.S. Patent Office. Registration number 0957323. All rights reserved, nothing may be reprinted or reproduced (including framing) in whole or part without written permission from the publisher. All editorial material, photographs, drawings, letters, and other material will be treated as unconditionally assigned for publication and copyright purposes and are subject to Construction Equipment Guide’s unrestricted right to edit and comment editorially. Contributor articles do not necessarily reflect the policy or opinions of this publication.

Read our privacy policy here.
Mastodon