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323 GX (NR4)

Medium Excavators

Introducing the 323 GX – our economy model with all the reliability and ease of operation you expect from a Cat® excavator, with easy maintenance and lower cost features designed to give you a faster return on your equipment investment.Featuring a C4.4 twin turbo engine with an aftertreatment system that requires no downtime and no diesel exhaust fluid (DEF), the 323 GX meets China Nonroad Stage IV emission standards.

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Net Power - ISO 9249 123.7 kW
Engine Model Cat C4.4
Engine Power - ISO 14396 129.4 kW
Bore 105 mm
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323 GX (NR4)
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OVERVIEW

RELIABLE. DURABLE. LOW COST

FEATURES & BENEFITS

LATEST FEATURES

    Cab Monitor Improvements.     Continuously improved user interface allows for intuitive navigation, minimizing performance... Read more

EASY TO OPERATE

    The machine’s electrohydraulic system allows accurate bucket control for maximum precision.         Start the... Read more

EASY TO MAINTAIN

    Do daily maintenance at ground level.     Up to 20% less maintenance cost than the 320D2 L due to enhanced filters and extend... Read more

LOW OWNING AND OPERATING COSTS

    The excavator uses up to 15% less fuel than the 320D2 L in similar applications.     Match the excavator to the job with a ch... Read more

RELIABLE PERFORMANCE

    A versatile machine that performs well in bucket and hammer applications.     Booms and sticks are robotically welded and che... Read more

WORK IN COMFORT

    The latest cab has a wide seat that adjusts to suit individual operator preferences.     Standard automatic climate control h... Read more

ENHANCED SAFETY

    Access daily maintenance points from ground level with the exception of the engine oil level – no need to climb on top of the excavator to check... Read more

SUSTAINABILITY

    The 323 GX meets China Nonroad Stage IV emission standards.        The 323 GX emits up to 15% less CO2 than th... Read more

SPECIFICATIONS FOR 323 GX (NR4)

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Engine
Net Power - ISO 9249 123.7 kW
Engine Model Cat C4.4
Engine Power - ISO 14396 129.4 kW
Bore 105 mm
Stroke 127 mm
Displacement 4.4 l
Power - ISO 14396 - Metric 176 metric hp
Net Power - ISO 9249 - Metric 168 metric hp
Net Power - ISO 9249 (DIN) 168 hp (metric)
Engine Power - ISO 14396 (DIN) 176 hp (metric)
Biodiesel Capability Up to B20¹
Emissions Meets China Nonroad Stage IV emission standards.
Note (1) Net power advertised is the power available at the flywheel when the engine is equipped with fan, air intake system, exhaust system, and alternator. Power rating applies at 2,000 rpm when tested under the specified condition for the specified standard in effect at the time of manufacture.
Note (2) ¹Cat diesel engines are required to use ULSD (ultra-low sulfur diesel fuel with 15 ppm of sulfur or less) or ULSD blended with the following lower-carbon intensity fuels** up to: 20% biodiesel FAME (fatty acid methyl ester)* or 100% renewable diesel, HVO (hydrotreated vegetable oil) and GTL (gas-to-liquid) fuels. Refer to guidelines for successful application. Please consult your Cat dealer or “Caterpillar Machine Fluids Recommendations” (SEBU6250) for details. *Engines with no aftertreatment devices can use higher blends, up to 100% biodiesel (for use of blends higher than 20% biodiesel, consult your Cat dealer). **Tailpipe greenhouse gas emissions from lower-carbon intensity fuels are essentially the same as traditional fuels.
Hydraulic System
Main System - Maximum Flow - Implement 429 l/min
Maximum Pressure - Equipment 35000 kPa
Maximum Pressure - Travel 35000 kPa
Maximum Pressure - Swing 27500 kPa
Swing Mechanism
Swing Speed 11.13 r/min
Maximum Swing Torque 82 kN·m
Weights
Operating Weight 21800 kg
Note Medium undercarriage, Reach boom, R2.9B1 (9'6") stick, General Duty (GD) 1.3 m³ (1.7 yd³) bucket, 600 mm (24") triple grouser shoes and 4550 kg (10,000 lb) counterweight.
Service Refill Capacities
Fuel Tank Capacity 103 gal (US)
Cooling System 24.5 l
Engine Oil 15 l
Swing Drive 5.5 l
Final Drive - Each 4.5 l
Hydraulic System - Including Tank 218 l
Hydraulic Tank 115 l
Dimensions
Boom Reach 5.7 m (18'8")
Stick Reach 2.9 m (9'6")
Bucket GD 1.3 m³ (1.7 yd³)
Shipping Height - Top of Cab 2960 mm
Handrail Height 3030 mm
Shipping Length 9515 mm
Tail Swing Radius 2830 mm
Counterweight Clearance 1046 mm
Ground Clearance 468 mm
Track Length 4250 mm
Track Length to Center of Rollers 3445 mm
Track Gauge 2380 mm
Dimensions - Reach Boom - 5.7 m (18'8)
Transport Width - 600 mm (24 in) Shoes 9.9 ft
Working Ranges & Forces
Maximum Digging Depth 6660 mm
Boom Reach 5.7 m (18'8")
Stick Reach 2.9 m (9'6")
Bucket GD 1.3 m³ (1.7 yd³)
Maximum Reach at Ground Level 9810 mm
Maximum Cutting Height 9440 mm
Maximum Loading Height 6550 mm
Minimum Loading Height 2230 mm
Maximum Depth Cut for 2440 mm (8 ft) Level Bottom 6490 mm
Maximum Vertical Wall Digging Depth 5530 mm
Bucket Digging Force - ISO 142 kN
Stick Digging Force - ISO 107 kN

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Net Flywheel Power 140 kW
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Engine Model C4.4 ACERT
Net Flywheel Power 85 kW
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General Duty

General Duty Bucket 1250 mm (49 in): 601-1740
Hammers

H140
Vibratory Plate Compactors

CVP110
Performance Hammers

H120 S

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