CAT 312D L Excavator


CAT 312D L Excavator Dimensions

Dimensions

Options Stick 8’2″ (2.5 m) Stick 9’2″ (2.8 m) Stick 9’10” (3 m)
Shipping Height 111.4 in (2830 mm) 116.9 in (2970 mm) 111.4 in (2830 mm)
Shipping Length 299.6 in (7610 mm) 298.8 in (7590 mm) 299.6 in (7610 mm)
Tail Swing Radius 84.3 in (2140 mm) 84.3 in (2140 mm) 84.3 in (2140 mm)
Length to Center of Rollers 119.7 in (3040 mm) 119.7 in (3040 mm) 119.7 in (3040 mm)
Track Length 147.6 in (3750 mm) 147.6 in (3750 mm) 147.6 in (3750 mm)
Ground Clearance 16.9 in (430 mm) 16.9 in (430 mm) 16.9 in (430 mm)
Track Gauge 78.3 in (1990 mm) 78.3 in (1990 mm) 78.3 in (1990 mm)
Shipping Width 98 in (2490 mm) 101.9 in (2590 mm) 105.9 in (2690 mm)
Height To Top Of Cab 108.7 in (2760 mm) 108.7 in (2760 mm) 108.7 in (2760 mm)
Counterweight Clearance 36 in (915 mm) 36 in (915 mm) 36 in (915 mm)

CAT 312D L Excavator Working Range

Working Range

Options Stick 8’2″ (2.5 m) Stick 9’2″ (2.8 m) Stick 9’10” (3 m)
Bucket Capacity 0.68 yd3 (0.52 m3) 0.68 yd3 (0.52 m3) 0.68 yd3 (0.52 m3)
Maximum Digging Depth 218.1 in (5540 mm) 229.9 in (5840 mm) 237.8 in (6040 mm)
Maximum Reach at Ground Level 321.7 in (8170 mm) 331.9 in (8430 mm) 339.4 in (8620 mm)
Maximum Cutting Height 333.9 in (8480 mm) 337.8 in (8580 mm) 342.5 in (8700 mm)
Maximum Dumping Height 240.2 in (6100 mm) 244.5 in (6210 mm) 249.6 in (6340 mm)
Minimum Dumping Height 79.5 in (2020 mm) 68.1 in (1730 mm) 60.2 in (1530 mm)
Maximum Vertical Wall Digging Depth 196.1 in (4980 mm) 203.1 in (5160 mm) 211.0 in (5360 mm)
Stick Digging Force (SAE) 14736 lbf (66 kN) 13855 lbf (62 kN) 13169 lbf (59 kN)
Bucket Digging Force (SAE) 21582 lbf (96 kN) 21582 lbf (96 kN) 21582 lbf (96 kN)

Buckets

Bucket Width Bucket Capacity Tooth Count
18″ (450 mm) 0.35 yd3 (0.27 m3) 4
24″ (600 mm) 0.39 yd3 (0.30 m3) 3/5
30″ (750 mm) 0.53 yd3 (0.40 m3) 4
36″ (900 mm) 0.68 yd3 (0.52 m3) 5/7
42″ (1050 mm) 0.82 yd3 (0.63 m3) 5/6/8
48″ (1200 mm) 0.97 yd3 (0.74 m3) 6/7/9

CAT 312D L Excavator Undercarriage Specs

Undercarriage

Standart Shoe Size 24 in (600 mm) triple grouser
Optional Shoe Sizes 20″ (500 mm), 28″ (700 mm), 30″ (770 mm) triple grouser
Track Gauge 78.3 in (1990 mm)
Max Travel Speed 3.4 mph (5.5 km/h)
Maximum Drawbar Pull 25628 lbf (114 kN)
Ground Pressure 4.86 psi (33.4 kPa) @ 24″ triple grouser
Track Guiding Guards Center section track guiding guards
Undercarriage Type Track-type undercarriage with grease lubricated seals

Swing Mechanism

Swing Torque 22827 lb ft (30950 Nm)
Swing Speed 12.4 rpm
Tail Swing Radius 84.3 in (2140 mm)

Engine Details

Number Of Cylinders 4
Engine Make CAT
Engine Model Cat C4.2 ACERT
Gross Power 97 hp (72 kw)
Net Power 90 hp (67 kw)
Power Measured @ 1800 rpm
Displacement 259.3 cu in (4.25 L)
Bore 4 in (102 mm)
Stroke 5.1 in (130 mm)
Aspiration Turbocharged and air-to-air-aftercooled (ATAAC)
Emission Standards U.S. EPA Tier 3 and EU Stage IIIA

CAT 312D L Excavator Engine Specs

Weight

Operating Weight w/o Blade Stick 8’2″ (2.5 m) Stick 9’2″ (2.8 m) Stick 9’10” (3 m)
500 mm (20″) triple grouser 28960 lb (13410 kg) 29050 lb (13180 kg) 29100 lb (13200 kg)
600 mm (24″) triple grouser 29510 lb (13390 kg) 29600 lb (13430 kg) 29650 lb (13450 kg)
700 mm (28″) triple grouser 30110 lb (13660 kg) 30200 lb (13700 kg) 30250 lb (13720 kg)
770 mm (30″) triple grouser 30430 lb (13800 kg) 30520 lb (13840 kg) 30570 lb (13870 kg)
Operating Weight w/ Blade Stick 8’2″ (2.5 m) Stick 9’2″ (2.8 m) Stick 9’10” (3 m)
500 mm (20″) triple grouser 30720 lb (13930 kg) 30800 lb (13970 kg) 30860 lb (14000 kg)
600 mm (24″) triple grouser 31270 lb (14180 kg) 31360 lb (14220 kg) 31410 lb (14250 kg)
700 mm (28″) triple grouser 31890 lb (14470 kg) 31980 lb (14510 kg) 32040 lb (14530 kg)
770 mm (30″) triple grouser 32210 lb (14610 kg) 32300 lb (14650 kg) 32360 lb (14680 kg)

CAT 312D L Excavator Specs

Operational Specs

Cab/FOGS Standarts SAE J1356 FEB88 ISO 10262
Noise Level 73 dB(A)
Voltage 24 V
Alternator 50 amps
Electric Starter 24 V
Battery 12 V, 100/95 Ah, CCA 750, BCI 31

Hydraulic System

Type Hydraulic Cross-Sensing System with 2 pumps
Maximum Pump Flow (Implements) 2x 33.5 gal/min (127 L/min)
Maximum Pressure (Implements) 4424 psi (30500 kPa)
Maximum Pressure (Swing) 3336 psi (23000 kPa)
Maximum Pressure (Travel) 5076 psi (35000 kPa)
Pilot System (Max Pump Flow) 9.51 gal/min (36 L/min)
Pilot System (Max Pressure) 598 psi (4120 kPa)
Blade System (Max Pressure) 2990 psi (20600 kPa)
Boom Cylinder – Bore 4.3 in (110 mm)
Boom Cylinder – Stroke 39.9 in (1015 mm)
Stick Cylinder – Bore 4.7 in (120 mm)
Stick Cylinder – Stroke 47.1 in (1197 mm)
Bucket Cylinder – Bore 3.9 in (100 mm)
Bucket Cylinder – Stroke 36.9 in (939 mm)

Service Refill Capacities

Fuel Tank Capacity 66 gal (250 L)
Cooling System Capacity 4.8 gal (17.9 L)
Engine Oil Capacity 5.2 gal (19.5 L)
Hydraulic System Capacity 42.8 gal (162 L)
Hydraulic Tank Capacity 39.6 gal (150 L)
Swing Drive Capacity 0.8 gal (3 L)
Final Drive (Each) 0.8 gal (3 L)
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