Milton CAT 312E - Manual (Page 15)

312E Hydraulic Excavator Specifications
Engine Hydraulic System Service Refi ll Capacities
Engine Model Cat ® C4.4 ACERT™ Main System – 254 L/min 67 gal/min Fuel Tank Capacity 250 L 66.04 gal
Net Power –
SAE J1349
Gross Power –
SAE J1995
Bore
Stroke
Displacement
68 kW
71 kW
105 mm
127 mm
4.4 L
91 hp
95 hp
4.13 in
5.00 in
269 in 3
Maximum Flow
(Total)
Swing System –
Maximum Flow
Maximum Pressure
– Equipment
Maximum Pressure
– Travel
127 L/min 34 gal/min
30 500 kPa 4,424 psi
35 000 kPa 5,076 psi
Cooling System
Engine Oil (with filter)
Swing Drive
Final Drive (each)
Hydraulic System
(including tank)
Hydraulic Tank
22 L
13.5 L
2.4 L
3 L
164 L
90.6 L
5.81 gal
3.57 gal
0.63 gal
0.79 gal
43.32 gal
23.93 gal
Maximum Pressure 23 000 kPa 3,336 psi Weights
Track
– Swing
Minimum Operating 13 500 kg 29,770 lb
Weight*
Maximum Operating 15 000 kg 33,080 lb
Weight**
*4.65 m (15'3") boom, 2.5 m (8'10") stick,
2.2 mt (2.4 t) counterweight, 0.65 m 3
(0.84 yd 3 ) bucket, and 500 mm (20") shoes.
** 4.65 m (15'3") boom, 3.0 m (9'10") stick,
2.2 mt (2.4 t) counterweight, 0.65 m 3
(0.84 yd 3 ) bucket, 770 mm (30") shoes
with blade.
Pilot System –
Maximum Flow 21.9 L/min 5.8 gal/min
Pilot System –
Maximum Pressure 4120 kPa 598 psi
Boom Cylinder –
Bore 110 mm 4 in
Boom Cylinder –
Stroke 1015 mm 40 in
Stick Cylinder –
Bore 120 mm 5 in
Stick Cylinder –
Stroke 1197 mm 47 in
Number of Shoes (each side)
Long Undercarriage 46 pieces
Number of Track Rollers (each side)
Long Undercarriage 7 pieces
Number of Carrier Rollers (each side)
Long Undercarriage 2 pieces
Sound Performance
Operator Noise 69 dB(A)
(Closed) – ISO 6396
Spectator Noise – 100 dB(A)
Bucket Cylinder – 100 mm 4 in ISO 6395
Bore
• When properly installed and maintained,
Bucket Cylinder – 939 mm 37 in the cab offered by Caterpillar, when tested
Stroke with doors and windows closed according
to ANSI/SAE J1166 OCT98, meets OSHA
Drive
and MSHA requirements for operator
sound exposure limits in effect at time
Maximum 5.5 km/h 3.4 mph of manufacture.
Travel Speed • Hearing protection may be needed when
Maximum 114 kN 25,628 lbf operating with an open operator station
Drawbar Pull and cab (when not properly maintained
or doors/windows open) for extended
Swing Mechanism periods or in noisy environment.
Swing Speed 11.5 rpm Standards
Swing Torque 30.9 kN·m 22,791 lb ft
Brakes ISO 10265 2008
ROPS Cab ISO 12117-2
Cab/OPG ISO 10262 1998
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