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Hyundai R300 Excavator Undercarriage Parts Track Chain Link Carrier Roller

Place of Origin China/Korea
Brand Name LIRACE/Hyundai
Model Number R300
Minimum Order Quantity 1 PCS
Price Negotiable price
Packaging Details Wooden case or as required
Delivery Time 5-8 Weekdays
Payment Terms Western Union,T/T
Supply Ability 300pcs /Month
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Basic Parameters & Introduction
This high-strength mining grade hydraulic excavator has a chassis core with four wheels and spare parts components, specially designed for Hyundai's classic heavy-duty excavator chassis walking system. The product comprehensively covers and accurately applies core load-bearing transmission units such as Track Chain Link and Carrier Roller. This high-end original grade component, as a pure boutique spare part in the aftermarket, is precisely suitable for fully restoring the 30 ton industry's absolute main star models such as the Hyundai R300LC-7 and R300LC-9S. The product is based on first principles and is made of high-quality manganese boron alloy steel through integral forging. It undergoes fully automatic deep heat treatment quenching, and has an ultra-high hardness wear-resistant layer on the surface, perfectly resisting the extreme alternating shear stress of mines. Taking the standard sprocket as an example, the physical dimensions of the packaging are approximately 240mm × 210mm × 210mm, and the overall net weight of a single unit is about 26.5kg (the chain rail assembly and other components are adjusted according to the specifications of the number of sections).
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Maintenance Tips
"Daily inspection (every 10 hours): Before starting work every day, it is mandatory to visually inspect the end of the chain wheel shaft and the chain rail pin shaft for any abnormal red rust or black box oil leakage. Promptly remove hard mineral inclusions in the blind spots of the chassis to prevent sudden physical jamming of the chain rail links.

Quantitative adjustment of tension (every 250 hours): Control the single-sided support of the machine body and measure the physical parameters of track sag every 250 hours of operation. Strictly inject grease through the tensioning cylinder to control the tension within the original factory rated threshold, thoroughly eliminating chain link accelerated fatigue caused by over tightening or over loosening.

Full vehicle depth assessment (every 2000 hours): up to a maximum of 2000 hours (or up to 1.5 years), using a caliper to measure the wear of the sprocket wheel tread and the elongation of the chain rail pitch. If the data exceeds the physical limit value, a preventive complete set of clearance and replacement must be carried out in advance."
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Installation Tips
"Extreme cleaning and benchmark verification (core pit avoidance): Before assembling the sprocket wheel, it is necessary to use a wire brush to thoroughly scrape off the sediment and rust on the installation benchmark surface of the track frame to ensure that the surface is physically flat. If there are micrometer sized foreign objects remaining on the installation surface, it will cause the axis of the sprocket to deviate after tightening, leading to unilateral force deformation and sudden lightning oil leakage during later operation.

High strength bolt torque locking: When replacing the sprocket, it is necessary to use brand new original 12.9 grade high-strength fastening bolts (it is strictly prohibited to reuse old parts). High precision torque wrenches must be used, strictly following the original factory's rated torque specifications for cross cross and staged uniform locking, and applying a small amount of anti loosening glue to the threads to prevent bolt loosening due to severe physical vibration."
Brand China/Korea Brand Name LIRACE/Hyundai
Model R300 Product Name Track Chain Link Carrier Roller
Part Number R300 ApplicableBrand Hyundai
Warranty Period 6-12 months Condition NEW
Standard or Non-standard Standard Type Guarantee We will inspect the products and send detailed pictures to the buyer for confirmation.
Applicable Industries Mechanical Repair Shops, Retail, Construction, Energy, Mining Shipping Method Sea freight, Air freight, DHL/FEDEX/TNT/EMS

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What We Do

Services we Offer

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What if there are quality problems with the purchased products?

Please rest assured completely. We implement strict quality control throughout the whole production process. From raw material incoming inspection to finished product delivery, all items undergo multiple rounds of rigorous technical inspection and performance testing, to fully ensure every delivered product meets 100% qualified standards. All unqualified products detected during inspection will be disposed of by centralized destruction, to firmly prevent defective goods from entering the market. Meanwhile, we provide an extended warranty period of 6 to 12 months for all products. Within the warranty period, if any non-artificial quality failure occurs, please contact us promptly. Our professional technical team will respond at the earliest time and offer targeted solutions based on actual conditions. In addition, we deliver all-round technical support to safeguard your after-sales operation. Always taking customer satisfaction as the core principle, we are committed to establishing long-term and stable cooperative partnerships with global clients.
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What happens if the delivered item is unsuitable for my needs?

Please rest assured. To ensure that the products you receive fully meet your needs, we will conduct multiple rounds of demand confirmation with you before shipment, fundamentally avoiding the problem of wrong or missing delivery. To further ensure accuracy, we will first conduct precise query and verification through the product part number you provide to ensure that the product model and specifications are completely matched. If you do not have an accurate part number temporarily, we will arrange professional technicians to check and confirm one by one according to the clear product pictures and corresponding construction machinery models you provide, and communicate and synchronize with you throughout the process until confirmed correct before arranging shipment, to fully ensure that you receive the products you need and avoid unnecessary troubles.
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What professional shipping and delivery standards can we provide you?

Within our international trade operations, we prioritize a high-efficiency supply chain and a transparent logistics framework. To ensure the accuracy of every shipment, a standardized PDI (Pre-Delivery Inspection) system is strictly enforced. Before the final sealing of containers, our QC specialists conduct a thorough re-examination. We provide clients with high-resolution photos of the actual items, packaging details, and the Packing List for Visual Confirmation, ensuring 100% compliance with order specifications and delivery transparency. We support versatile Incoterms, including EXW and FOB. To meet diverse delivery timelines and cost constraints, we offer a multi-modal logistics matrix ranging from Ocean Freight and Air Freight to global couriers (DHL/FEDEX/TNT/EMS). We guarantee full professional documentation support for every shipment to ensure a safe, timely, and compliant arrival at the port of destination.
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We are a global one-stop supplier of excavator spare parts. We maintain full control over the entire process from R&D and manufacturing to sales, delivering top-quality excavator components to you.

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