Used CAT323D Hydraulic Excavator 23T with 129kW Cat Engine
CAT323D Technical Specifications Table
| Category | Specification |
|---|---|
| Engine Model | Cat C7.1 (Tier 4 Final/Stage V) |
| Net Power | 129 kW (173 hp) @ 1,800 rpm |
| Operating Weight | 23,000 kg (50,706 lb) |
| Bucket Capacity | 0.38-1.26 m³ (0.5-1.65 yd³) |
| Max Digging Depth | 6.2 m (20' 4") |
| Max Reach at Ground | 9.67 m (31' 9") |
| Bucket Digging Force | 186 kN (41,810 lbf) |
| Arm Digging Force | 134 kN (30,120 lbf) |
| Swing Speed | 11.5 rpm |
| Travel Speed | 5.5 km/h (3.4 mph) |
| Fuel Tank Capacity | 400 L (106 gal) |
| Hydraulic System Flow | 2 x 212 L/min (2 x 56 gpm) |
| Track Width | 600 mm (24") / 800 mm (31") optional |
| Ground Clearance | 450 mm (17.7") |
Key Specifications & Performance Highlights
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Power Meets Efficiency
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12% better fuel economy vs. previous gen
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Eco Mode reduces idle consumption by 18%
- Auto-Idle shuts down after 5 inactive minutes
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- Superior Digging Performance
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- 186 kN bucket force - tears through hardpan
- 4.9m vertical wall dig capability
- 9.67m max reach (with standard arm)
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- Operator-First Design
- Industry's quietest cab (72 dB)
- 10-inch touchscreen with rearview camera
- Air-suspension seat (heating optional)
- Operator-First Design
Why Contractors Choose CAT336D?
5 Hard-Hitting Reasons
1. Profit-Boosting Efficiency
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12% lower fuel costs vs. previous models (proven in Cat field tests)
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Auto-Idle saves 8L/hr during breaks – that's $12,000+/year for 2,000-hour operations
- Quickest cycle times in class:
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2. Built for Non-Stop Work
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X-Frame structure lasts 12,000+ hours before major undercarriage work
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7Sealed wiring withstands monsoon rains (tested in Southeast Asia)
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-30°C cold start capability (Arctic package available)
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3. Operator R attention Advantage
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Quietest cab (72 dB) – 17% quieter than Volvo EC220
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Largest touchscreen in class (10" vs. standard 7")
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Heated/cooled seat reduces fatigue on 12-hour shifts
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CAT 336D FAQ: Expert Answers to Top Contractor Questions
Q: Can it handle hard rock excavation?
✅ Yes – Recommended setup:
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HB 1880 hydraulic breaker
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Heavy-duty bucket with ESCO Ultralok teeth
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Power Mode + 10% reduced swing speed
Q: Actual fuel burn in different modes?
| Mode | L/hr | Gal/hr |
|---|---|---|
| Eco | 14-16 | 3.7-4.2 |
| Standard | 18-20 | 4.8-5.3 |
| Power | 22-24 | 5.8-6.3 |
Q: What's the most overlooked critical service?
⚠️ Swing bearing lubrication (90% of early failures):
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Every 50h in abrasive conditions
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Every 100h normal operation
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Use Cat TDTO 50 oil exclusively
Q: Filter replacement costs?
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Engine oil: $280
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Hydraulic: $320 (dual filters)
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Air: $150 (pre-cleaner included)
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