Why a Refurbished CAT 320D is the Smart Choice for Heavy Construction
2025-12-15 16:39Why a Refurbished CAT 320D is the Smart Choice for Heavy Construction?
The Used CAT 320D Excavator is a premier 20-ton hydraulic crawler machine designed to deliver powerful digging capabilities and operational efficiency in demanding earthmoving environments.
The Enduring Value of the CAT 320D
Caterpillar establishes the global standard for heavy machinery, and the 320D model remains one of the most sought-after units in the secondary market. Its reputation is built on a high-pressure hydraulic system that allows it to move substantial material volumes quickly, reducing the timeline for site preparation and excavation tasks.
Sitting squarely in the 20-ton class, this machine offers the perfect equilibrium between lifting capacity and transport logistics. It is heavy enough to handle rock breaking and deep trenching, yet compact enough to be transported between sites on standard flatbed trailers without excessive logistical hurdles.
Comparing Caterpillar 320 Series Models
Understanding the nuances between different versions of the 320 series ensures you acquire the specific tool needed for your requirements.
| Model Variant | Primary Focus | Technical Distinction |
|---|---|---|
| CAT 320D Excavator | Performance / Durability | The standard for robust mechanical performance and high resale value. |
| CAT 320D2 Excavator | Fuel Economy | Optimized engine management for regions with variable fuel quality. |
| CAT 320GC Excavator | Cost Efficiency | Simplified systems designed to lower the cost-per-hour of operation. |
Ideal Applications for this Machine
The Used CAT 320D Excavator is configured to serve a wide array of industrial sectors:
General Construction: Essential for digging foundations, trenching for utilities, and site grading.
Quarry Operations: Capable of loading aggregate and clearing overburden in medium-sized mining setups.
Infrastructure Development: Frequently utilized in road building and bridge maintenance projects.
Demolition Projects: The robust chassis supports heavy hydraulic attachments like breakers and shears.
Technical Specifications
Detailed knowledge of the technical data helps in assessing if the Used CAT 320D Excavator meets your site's physical demands.
| Component | Specification Details |
|---|---|
| Engine Model | Cat® C6.4 ACERT™ Technology |
| Net Power | Approx. 103 kW (138 hp) |
| Operating Weight | 20,000 kg - 21,500 kg (varies by config) |
| Maximum Dig Depth | 6,720 mm (Standard Boom) |
| Bucket Capacity | 0.8 - 1.2 m³ (Standard 1.0 m³) |
| Track Shoe Width | 600 mm (Standard) |
| Hydraulic System | Cross-sensing system for faster implement speeds |
Standout Features of the 320D
Robust Undercarriage Design
The undercarriage of the Used CAT 320D Excavator utilizes heavy-duty rollers and idlers. The track links are sealed and lubricated, which significantly reduces internal wear and friction. This design choice ensures the machine remains stable on uneven ground and extends the lifecycle of the moving parts.
High-Efficiency Hydraulics
Caterpillar’s hydraulic system is engineered with a regeneration circuit for the boom and stick. This recycles energy during the boom-down and stick-in operations, reducing the load on the engine. The result is a machine that maintains high cycle speeds while conserving fuel.
Operator Station Ergonomics
The cabin environment prioritizes visibility and control. Slim pillars and expansive glass provide a clear line of sight to the bucket and tracks. The joystick controls are low-effort, designed to minimize fatigue for the personnel managing the machine over extended periods.
Translating Features into Operational Benefits
| Engineering Feature | Benefit to the Project |
|---|---|
| ACERT™ Engine Technology | Delivers consistent power while adhering to emission standards, reducing environmental impact. |
| Heavy-Duty Boom & Stick | Resists metal fatigue during high-stress digging, ensuring long-term structural integrity. |
| Hydraulic Snubbers | Reduces shock and vibration at the end of cylinder strokes, protecting the machine structure. |
| Simplified Maintenance Points | Ground-level access to filters allows for faster daily checks, increasing uptime. |
Criteria for Choosing a Machinery Supplier
Sourcing a Used CAT 320D Excavator requires due diligence to ensure you receive a machine ready for immediate deployment:
Physical Inventory: Verify that the supplier actually holds the stock. ZW Group maintains extensive stockyards in Shandong and Shanghai.
Refurbishment Capability: Avoid simple traders. Choose a supplier with their own workshops that can perform engine tuning, hydraulic testing, and repainting.
Export Experience: The vendor must be proficient in handling customs documentation and securing space on Flat Rack or Bulk vessels.
Testing Protocols: Ensure the machine undergoes a load test before shipment to verify hydraulic pressure and engine compression.
Why Partner with ZW Group?
ZW Group is not merely a trading company; we are a dedicated refurbishment specialist. We own and operate extensive mechanical workshops in Jining, Shandong, and Shanghai. This physical presence allows us to control every aspect of the quality assurance process.
When a Used CAT 320D Excavator enters our facility, it is not just washed. It is inspected by senior technicians. Worn parts are replaced, hydraulic lines are pressure-tested, and the exterior is professionally restored. We hold a massive inventory of used trucks and construction machinery, ensuring we can meet bulk orders or specific model requests with speed and precision. Our commitment is to deliver machinery that functions as impressively as it looks.
Frequently Asked Questions
Where are your used excavators refurbished?
ZW Group operates dedicated refurbishment factories in Jining, Shandong, and Shanghai. We control the entire restoration process to ensure quality standards are met before export.
What is the condition of the hydraulic pump in the Used CAT 320D?
Every hydraulic pump undergoes rigorous pressure testing in our workshops. We replace worn seals and components to guarantee the machine retains its original digging force.
Can ZW Group handle shipping for heavy machinery?
Yes, we specialize in logistics for heavy equipment, utilizing Flat Rack containers or Bulk Cargo vessels to transport excavators safely to international ports.
How does the CAT 320D compare to the 320D2?
The 320D is known for its robust mechanical engine interface, while the 320D2 features a slightly more advanced fuel filtration system suited for regions with varying fuel quality.
Do you provide maintenance history for these machines?
We provide a comprehensive inspection report detailing the current state of the engine, undercarriage, and hydraulics, offering transparency regarding the machine's background.
Final Thoughts
The Used CAT 320D Excavator represents a smart acquisition for contractors seeking reliable performance without the capital expenditure of a brand-new unit. With ZW Group's professional refurbishment in our Jining and Shanghai factories, you are assured of a machine that is mechanically sound and ready for the site.
ZW Group serves as a comprehensive resource for all your equipment needs. Beyond excavators, we supply used and new Bulldozers, Loaders, Road Rollers, Motor Graders, Forklifts, and Cranes. For heavy transport, we offer premium refurbished trucks from brands like Howo, Shacman, and FAW, including Dump Trucks, Tractor Heads, Fuel Tankers, Water Tankers, Mixers, and Truck Mounted Cranes.
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