Used Komatsu PC450 Crawler Excavator 45 Ton Heavy Duty Digger for Sale

Name: Used Komatsu PC450 Crawler Excavator 45 Ton Heavy Duty Digger for Sale - Taihongmachinery
Price: 56000.00 USD
Availability: InStock

1-2 Unit$57,000

>=3 Units$56,000

（Price is FOB . Contact WhatsApp for CIF price & shipping cost.）

Used excavator Volvo excavator comparison. Crawler excavator used Komatsu PC450, 45 ton heavy duty digger for sale. Reliable Japanese engineering, high productivity.

Brand	Komatsu
Country of Origin	Japan
Year	2024
Model Number	PC450
Working Hours	500H

Categories: Excavator, Komatsu

Tags: Construction Machinery, crawler excavator, Komatsu PC450

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Product Specifications

No	Item	Data
1	Type	Komatsu PC450-8
2	Operating weight	45125kg
3	Bucket capacity	2.1m³
4	Boom length	7060mm
5	Stick length	3380mm
6	Rotation speed	9rpm
7	Walking speed	3.0-5.5km/h
8	Gradeability	35°/70°
9	Bucket digging force	278KN
10	Stick digging force	233KN
11	Engine model	Komatsu SAA6D125E-5
12	Rated power	257kw/1900rpm
13	Hydraulic pump	Komatsu
14	Distribution valve	Komatsu
15	Displacement	11.04L
16	No. of cylinders	6
17	Cooling method	water-cooling
18	Fuel tank	650L
19	Length	12040mm
20	Width	3082/3580mm
21	Height	3660mm
22	Maximum excavation radius	12005mm
23	Maximum excavation depth	7790mm
24	Maximum excavation height	10925mm
25	Maximum unloading height	7625mm
26	Maximum vertical excavation depth	6600mm

Product Pictures

Expert Inspection Report

针对 Komatsu PC450（小松 PC450），我为您撰写了一段深度专家评审内容。

PC450 属于重型挖掘机中的“巨头”，通常用于矿山开采、大规模采石场和大型土石方工程。这段文案重点突出了它在极端工况下的稳定性、巨大的铲斗容量以及作为资产的长久价值。

Expert Review: Komatsu PC450 – The Heavy-Duty Giant for Extreme Production

The Komatsu PC450 is a powerhouse engineered for large-scale operations where productivity and machine availability are the only metrics that matter. At Taihongmachinery, our technical team recognizes the PC450 as the premier choice for heavy-duty quarrying, mining, and high-volume infrastructure projects that demand relentless power.

1. Dominant Power and Digging Force

The PC450 is powered by a high-displacement Komatsu SAA6D125E engine, delivering the massive torque required for deep excavation in hard-packed soils and rock. Its optimized power management system ensures that the engine and hydraulic pumps work in perfect synchronization, providing a breakout force that allows it to outperform almost any other machine in the 45-ton class.

2. Unmatched Stability for Heavy-Duty Lifting

With its extra-long and wide undercarriage, the PC450 provides an incredibly stable platform. This massive footprint is essential when handling large-capacity buckets or heavy lifting at full reach. Our field observations in Africa and South America confirm that the PC450 maintains exceptional balance and reduced vibration, which protects the swing circle and ensures a longer service life for the upper structure.

3. Precision Hydraulics: The CLSS Advantage

Despite its massive size, the PC450 offers surprising precision thanks to Komatsu’s Closed-center Load Sensing System (CLSS). This technology ensures that hydraulic oil flow is utilized with 100% efficiency, matching the speed of the boom, arm, and bucket to the weight of the load. For operators, this means smooth, predictable control even during the most demanding multi-function cycles.

4. Reinforced for the Toughest Environments

The PC350’s structural integrity is legendary. The boom and arm are constructed with thick, high-tensile strength steel casting and reinforcements. At TH Engineering Equipment Limited, we meticulously inspect the stress points of every used PC450. We find that these machines are built to withstand the abrasive conditions of Middle Eastern deserts and Southeast Asian tropical projects far better than standard duty excavators.

5. Why Partner with TH Engineering?

At Taihongmachinery, we understand that a 45-ton machine is a strategic capital investment. Every Komatsu PC450 in our yard undergoes a comprehensive 100-point inspection, including detailed analysis of the hydraulic pump pressure, engine blow-by, and undercarriage wear levels. We provide full transparency and technical support to ensure your machine is “work-ready” from the moment it lands.

Our Verdict: The Komatsu PC450 is the ultimate “heavy lifter.” If your project involves moving massive amounts of material under tight deadlines, the PC450 provides the raw power and structural reliability to get the job done efficiently and profitably.

Company Description

Taihongmachinery (TH Engineering Equipment Limited) is a premier global supplier specializing in the export of high-quality, pre-owned heavy construction equipment.
Our company sells Caterpillar,Komatsu,Sany,Doosan,Hyundai,Hitachi,Volvo,Kubota used excavators, used bulldozers, used loaders, used graders, used cranes, used rollers, etc. With a strategic focus on the international trade of used excavators, we have established ourselves as a cornerstone of reliability for clients across Southeast Asia, South Asia, the Middle East, Africa, and South America.

Shipping & Delivery Policy

At Taihong Machinery, we provide flexible global logistics solutions for all our used heavy machinery.

Shipping Method: We recommend working with professional international freight forwarders specializing in heavy equipment (RORO or Flat Rack container shipping).

Flexibility: We are happy to work with your preferred freight forwarder. If you do not have one, we can leverage our network of reliable, certified global logistics partners to provide competitive shipping quotes to your nearest port.

Preparation: All machines undergo professional cleaning and safety inspections prior to loading to ensure they meet international shipping regulations.

Documentation: We provide all necessary export documentation, including Bills of Lading, Packing Lists, and Commercial Invoices, to ensure smooth customs clearance at the destination.

Return & Refund Policy

We provide a detailed pre-shipment inspection report and live video call to confirm machine condition. Returns are generally not accepted, but if the machine does not match the inspection report, we will negotiate a resolution.

Inspection: We encourage all buyers to conduct a thorough inspection of the machine, either in person at our yard in China or via live video consultation with our technicians.

Pre-shipment Verification: Before the machine leaves our yard, we provide a full functional test report and live video proof of the engine, hydraulic, and structural condition. Once the buyer confirms the machine status and the machine is loaded for export, we do not accept returns.

Warranty: All equipment is sold in “as-is” condition. We are committed to transparency and will disclose all known technical details prior to purchase.

Support: Should any issues arise during the shipping process, we will provide full support in communicating with your insurance provider and the shipping line.

Success Cases

The Komatsu PC450 is a 45-ton class large hydraulic excavator designed for heavy construction, mining, and large-scale earthmoving applications. The most common variant is the PC450-8/PC450LC-8, with specifications verified by official Komatsu data .

Complete Specifications Table:

Parameter	Value
Model	PC450-8 / PC450LC-8
Operating Weight	44,300 – 45,125 kg (97,637 – 99,600 lbs)
Engine Model	Komatsu SAA6D125E-5
Engine Type	6-cylinder, water-cooled, turbocharged diesel
Rated Power	257 kW (345 HP) at 1,900 rpm
Displacement	11.04 L (674 cu in)
Fuel Tank Capacity	650 L (172 gal)
Hydraulic Oil Tank	248 L
Engine Oil Capacity	37 L
Coolant Capacity	Information not specified

Working Range Parameters:

Parameter	Value
Bucket Capacity	1.3 – 2.8 m³ (1.7 – 3.7 yd³)
Max Digging Depth	7,790 mm (25.6 ft)
Max Digging Radius	12,005 mm (39.4 ft)
Max Digging Height	10,925 mm (35.8 ft)
Boom Length	7,060 mm (23.2 ft)
Arm Length	3,380 mm (11.1 ft)

Performance Parameters:

Parameter	Value
Bucket Digging Force	278 kN (62,500 lbs)
Arm Digging Force	233 kN
Swing Speed	9.1 rpm
Travel Speed (3-speed)	3.0 / 4.2 / 5.5 km/h (1.9 / 2.6 / 3.4 mph)
Gradeability	70% / 35°

Hydraulic System:

Parameter	Value
Main Pump Flow	690 L/min
Travel Circuit Pressure	37.3 MPa
Swing Circuit Pressure	27.9 MPa

Transport Dimensions:

Parameter	Value
Transport Length	12,040 mm (39.5 ft)
Transport Width	3,580 mm (11.7 ft)
Transport Height	3,660 mm (12.0 ft)

The PC450 features Komatsu’s CLSS (Closed Load Sensing System) hydraulics, which provides precise control, fast response times, and excellent fuel efficiency. The machine also comes standard with KOMTRAX® remote monitoring and location system for fleet management and theft prevention .

Based on industry data and operator reports, the Komatsu PC450 excavator has an average fuel consumption of approximately 20-25 liters per hour (5.3-6.6 gallons per hour) under normal working conditions .

Fuel Efficiency Factors:

Factor	Impact on Fuel Consumption
Material Type (sand vs. rock)	Up to 30% difference
Digging Depth	Deeper = higher consumption
Operator Technique	Skilled operators save 10-15%
Attachment Type	Breakers consume more than buckets
Idle Time Reduction	Eliminating idle saves 5-10 L/hour

Fuel Efficiency Optimization Tips:

Use Eco Mode – The PC450 features an active mode for fast cycle times that balances power and fuel efficiency
Reduce Idle Time – Excessive idling wastes fuel without productivity gain
Maintain Proper Track Tension – Incorrect tension increases rolling resistance
Keep Hydraulics Clean – Contaminated oil reduces system efficiency
Match Bucket to Material – Using the right bucket size reduces cycle time

The large 650 L (172 gal) fuel tank allows for 26-32 hours of continuous operation between refueling stops, making the PC450 ideal for remote job sites and extended shifts.

Cost Calculation Example (at $1.00/L diesel):

Daily fuel cost (8 hours): $160 – $200
Weekly fuel cost (40 hours): $800 – $1,000
Monthly fuel cost (160 hours): $3,200 – $4,000

The Komatsu PC450’s powerful hydraulic system (690 L/min main pump flow) supports a wide range of heavy-duty attachments, making it highly versatile for mining, construction, and demolition applications .

Compatible Attachments and Specifications:

Attachment Type	Bucket Capacity Range	Primary Applications
General Purpose Bucket	1.3 – 2.8 m³	Earthmoving, trenching, loading
Heavy-Duty Rock Bucket	1.5 – 2.2 m³	Rock excavation, quarry work
Trenching Bucket	0.8 – 1.2 m³	Utility installation, pipeline work
Hydraulic Breaker	3,500 – 5,000 kg class	Demolition, rock breaking
Hydraulic Thumb	Hydraulic-powered	Material sorting, loading
Grapple	Hydraulic or mechanical	Scrap handling, demolition
Auger	Up to 1,200 mm diameter	Foundation drilling, post holes
Compactor	Vibratory plate	Soil compaction

Bucket Link Compatibility:
The PC450 shares attachment linkage compatibility with other Komatsu models including PC400, PC400LC, PC400HD, and PC450LC series. A high-quality bucket link made from galvanized steel with multiple mounting points ensures secure attachment connection .

Attachment Selection Guide:

Application	Recommended Bucket	Key Consideration
Mass Excavation	2.1 – 2.8 m³ bucket	Maximize payload per cycle
Rock Excavation	1.5 – 1.8 m³ HD bucket	Reinforced structure needed
Trenching	0.8 – 1.2 m³ narrow bucket	Match width to pipe diameter
Precision Grading	2.0 – 2.5 m³ tilt bucket	Allows angle adjustment

Auxiliary Hydraulics:
The PC450-8 comes equipped with auxiliary hydraulic piping and proportional control capability, allowing seamless attachment switching without manual reconfiguration.

⚠️ Important: Always verify attachment weight and flow requirements with the machine’s specifications. The Pro Model bucket link offers 6,500 kg load capacity for heavy-duty applications in mining .

Following the manufacturer’s recommended maintenance schedule is critical for maximizing the PC450’s service life and minimizing downtime. Below is the comprehensive maintenance schedule based on Komatsu’s official operation and maintenance manuals .

Daily Maintenance (Every 8-10 hours / Before Start):

Component	Maintenance Action
Coolant Level	Check radiator reserve tank (between FULL and LOW marks)
Electrical Wiring	Inspect for damage, loose terminals, flammable material accumulation
Hydraulic Oil Level	Check sight glass, add if necessary
Engine Oil Level	Check dipstick, maintain proper level
Track Tension	Inspect for proper sag
Walk-around Inspection	Check for leaks, damage, loose bolts

Every 50 Hours (Weekly):

Component	Maintenance Action
Air Pre-cleaner	Clean and inspect
Greasing (First 50 hours)	Grease every 10 hours for new machines

Every 250 Hours:

Component	Maintenance Action
Fan Belt Tension	Adjust to approximately 10mm deflection at 6 kg (13 lb) force
Fuel Filter Cartridge	Replace, bleed air from system
Swing Bearing	Grease as specified

Every 500 Hours:

Component	Maintenance Action
Work Equipment Greasing	Boom, arm, bucket cylinder pins (as shown in manual)
Hydraulic Filter	Replace element
Oil Cooler	Clean fins and core

Every 1,000 Hours:

Component	Maintenance Action
Swing Machinery Oil	Change – refill capacity: 21.5 L (5.7 US gal)
Engine Valve Clearance	Check and adjust
Fuel Injectors	Inspect and clean

Undercarriage Maintenance:

Component	Expected Life	Maintenance Tips
Steel Tracks	3,000 – 5,000 hours	Adjust tension to prevent derailment
Sprockets	3,000 – 5,000 hours	Replace in matched sets
Track Rollers	2,500 – 4,000 hours	Regular cleaning
Track Adjuster/Recoil Assembly	As needed	Available as service exchange component

Common Issues and Remedies :

Problem	Main Causes	Remedy
Slow operation speed	Lack of hydraulic oil, clogged strainer	Add oil, clean strainer
Pump abnormal noise (sucking air)	Low oil level	Add oil to specified level
Excessive hydraulic oil temperature	Loose fan belt, dirty oil cooler	Adjust belt, clean cooler
Track comes off	Track too loose	Adjust track tension
Abnormal sprocket wear	Improper tension	Adjust/replace
Boom rises slowly/doesn’t rise	Hydraulic issues	Check oil level, system pressure
No swing operation	Swing lock switch ON	Turn switch OFF

Pro Tip: Komatsu’s built-in self-diagnostic monitor allows operators to check all working parameters from the moment the engine starts. The advanced Komatsu diagnostic system reduces diagnostic time and indicates components due for replacement .

Komatsu offers several variants of the PC450 platform, each designed for specific applications and regional requirements. Understanding the differences helps buyers select the right machine for their needs.

Model Comparison Table:

Feature	PC450-8	PC450LC-8	PC450-7	PC450-8R
Undercarriage	Standard	Long (LC)	Long	Standard (R series)
Operating Weight	44,300 kg	44,300 kg	45,000 kg	Similar to -8
Engine Power	345 HP	345 HP	347 HP	345 HP
Bucket Capacity	1.3-2.8 m³	1.3-2.8 m³	2.2-3.1 m³	1.3-2.8 m³
Emission Standard	Tier 3	Tier 3	Tier 2/3	Tier 3/4
Track Length	Shorter	Longer	Longer	Standard

Detailed Variant Descriptions:

1. PC450-8 (Standard)

The base model with standard track length
Ideal for general construction and earthmoving
Better maneuverability in confined spaces
Serial numbers: 75001 and up

2. PC450LC-8 (Long Crawler)

Features an extended track frame for increased stability
Lower ground pressure – ideal for soft terrain
Better lifting capacity due to larger footprint
Preferred for heavy lifting and soft ground conditions
Same engine and hydraulic system as standard model

3. PC450-7

Previous generation model
Slightly higher operating weight (45,000 kg)
Larger bucket capacity range (2.2 – 3.1 m³)
Features active mode for fast cycle times
Still supported with parts including track adjuster and recoil assemblies
Low vibration with cab damper mounting

4. PC450-8R (R Series)

Updated version of the -8 model
Serial numbers: 75001 and up
May include regional-specific features
Similar specifications to -8 base model

LC vs. Standard – When to Choose Which:

Consideration	Choose PC450-8 (Standard)	Choose PC450LC-8 (Long)
Ground Condition	Firm, stable ground	Soft, muddy, sandy terrain
Primary Work	General excavating, trenching	Heavy lifting, soft terrain
Transport	Easier to transport (shorter length)	Requires larger transport trailer
Maneuverability	Better in tight spaces	Reduced turning radius
Ground Pressure	Higher	Lower (better flotation)

Regional Variants:

PC450LC-7 (India market) : Features high-rigidity work equipment with cast end boom top, long replacement intervals for oils and filters, and continuous machine monitoring system
PC450LC-8 (Africa market) : Comes standard with KOMTRAX remote monitoring, backed by regional service network

Parts Compatibility Note:
The PC450 shares many components across variants. Common parts include:

Engine SAA6D125 series components
Hydraulic pumps and control valves
Bucket links and attachment interfaces
Filter cartridges (engine oil: 600-21-1231, fuel filter: 600-311-8293)

Recommendation: For most applications, the PC450LC-8 offers the best balance of stability and productivity. Choose the standard PC450-8 if transport size is a primary constraint. The -8R series is preferred in regions requiring newer emission standards.