Detailed Product Introduction of Remanufactured CAT 320D Excavator

1. Basic Product Overview

2. Basic Overall Machine Parameters

• Machine weight class: 20-ton medium excavator
• Standard configuration: Original CAT tracked undercarriage, standard earthmoving bucket, spare pipeline for hydraulic breaker
• Operation mode: Original CAT electronic control system, left-hand or right-hand control pattern switchable on request
• Applicable working conditions: Urban infrastructure, rural infrastructure, small quarries, landscaping, municipal renovation projects

3. Remanufacturing Details of Core Assemblies

(1) CAT C6.4 Engine Assembly

(2) Main Hydraulic System (Main Pump + Multi-way Valve + Swing Motor + Travel Motors)

(3) Boom, Stick and Bucket Structural Components

(4) Travel Undercarriage System

(5) Cab and Electronic Control System

4. Standard Full-Machine Remanufacturing Process

1. Complete disassembly: The whole machine is disassembled down to individual parts, cleaned of mud, sludge and carbon deposits, sorted, washed and screened; scrapped components are directly eliminated and replaced.
2. Flaw detection and repair for structural parts: Frame, boom, stick and bucket are inspected, crack-welded and straightened to remove hidden dangers of fatigue cracking.
3. In-depth overhaul of three major assemblies: Engine, hydraulic system, travel and swing system are disassembled for maintenance with worn internal components replaced.
4. Full replacement of sealing components: All oil seals, sealing rings, hoses and filter elements are replaced in one batch to stop fluid leakage.
5. Sorting and renovation of electrical system: Wiring harnesses are rearranged and renewed; sensors and controllers are debugged to eliminate electronic control faults.
6. Whole-machine assembly and commissioning: Assembled in accordance with original factory torque specifications, including no-load movement debugging, compound movement coordination testing and pressure calibration.
7. Sandblasting and painting: The whole machine is sandblasted for rust removal, coated with epoxy primer and original-matching topcoat with intact and neat logos.
8. Comprehensive factory inspection: Load test run is conducted for the whole machine; data of pressure, rotating speed and fuel consumption are recorded, a remanufacturing inspection file is established, and the machine is warehoused only after passing inspection.

5. Core Product Advantages

1. Excellent cost performance: Selling price is far lower than brand-new genuine CAT machines, while remanufactured quality greatly outperforms ordinary second-hand refurbished excavators with fewer failures and faster return on investment.
2. Stable performance under working conditions: Key components are repaired after flaw detection, solving common inherent problems of older 320D models including internal leakage, insufficient power, overheating and oil leakage, suitable for long-term continuous construction.
3. High versatility of spare parts: CAT 320D enjoys large market stock with easily accessible spare parts and abundant service outlets, reducing long-term maintenance costs.
4. Wide business coverage: Apart from ready-made remanufactured CAT 320D units in stock, we provide remanufacturing services for excavators of all brands including Komatsu, Hitachi, Kobelco, V olvo, etc., as well as customized full-machine remanufacturing for pump trucks, mixer trucks, loaders and other construction machinery.
5. Flexible transaction modes: Customers can purchase in-stock units after on-site trial operation; we also accept customer-owned machines for entrusted remanufacturing and customized remanufacturing orders. Complete vehicles can be exported without packaging with supporting customs declaration and logistics solutions available.