Excavator Parts Link Rod fit Kobelco SK120
Durable link rod built for Kobelco SK120 excavators. Made from forged Q345B or Q235B steel, CNC-machined for precision alignment, and finished with rust-resistant coating. Ideal for mid-size excavation tasks where strength and articulation accuracy are critical.
| Colors | Black or yellow or customized |
|---|---|
| Surface Hardness | HRC52-58 |
| Material | Q235B, Q345B |
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Kinton Parts is trusted by professionals worldwide for delivering high-quality parts for excavators, bulldozers, and other construction machinery—with guaranteed performance and durability.
Purpose of the Link Rod in Kobelco SK120
The link rod, also called the bucket link, is a key component connecting the bucket cylinder to the bucket assembly. In the Kobelco SK120, a 12-ton class excavator, the link rod ensures smooth bucket tilting and consistent load distribution across digging, scooping, and trenching cycles.
Because this machine is often used in urban excavation, road foundation work, or utility trenching, its linkage system must respond accurately to operator input while resisting stress and wear from repeated directional changes. A high-quality link rod helps maintain this performance by ensuring alignment stability and force continuity across the joint.
Material Strength and Structural Integrity
We forge each SK120 link rod using Q345B or Q235B structural steel, depending on your strength and budget requirements. Q345B offers higher tensile strength and impact resistance, making it ideal for high-duty operations, while Q235B remains a solid choice for standard excavation tasks.
Forging refines the internal grain of the metal, enhancing fatigue life and load-bearing consistency. This allows the link rod to absorb repeated shocks and high-pressure cycles without deformation, even in environments with vibration, off-angle digging, or uneven loads.
After forging, critical areas such as the pin holes, bushing seats, and joint faces are finished using CNC machining. This process ensures tight tolerances—to prevent misalignment, reduce pin wear, and maintain proper bucket articulation over thousands of cycles.
The final product receives either shot-blasting and primer painting or e-coating (electrophoretic coating), depending on customer requirements. This surface protection guards against mud, moisture, and abrasive particles, which are common in excavation environments.
Pre-Machining Storage
After forging and rough shaping, each link rod is properly stored in preparation for precision machining and heat treatment. These solid, semi-finished parts are neatly arranged in batches — showcasing both our forging strength and our ability to manage stable, large-scale production.
Export-Ready Packaging
After completing all machining, quality checks, and anti-corrosion treatment, each finished link rod is carefully packed using reinforced pallets or wooden crates. This ensures safe handling and long-distance transport. Every package is clearly labeled for easy tracking, and logo or barcode customization is available upon request.
Fitment Range
This link rod is designed to fit a range of Kobelco SK120 series excavators, including:
- SK120 / SK120-3 / SK120-5 / SK120-6 / SK120LC
- SK125SR / SK120-1 (depending on linkage setup)
Unsure if it fits your machine? Send us your serial number, casting number, or a photo with measurements, and we’ll verify compatibility within 12 hours.
OEM Undercarriage Parts for Kobelco Excavator
| BRAND | MACHINERY MODEL NUMBER | |||||||
|---|---|---|---|---|---|---|---|---|
| KOBELCO | SK30 | SK35 | SK40 | SK45 | SK55 | SK60 | SK60-8 | SK60-10 |
| SK75 | SK100 | SK120 | SK120-5 | SK120-6 | SK130 | SK135 | SK135SR | |
| SK135SR-2 | SK140 | SK140SR | SK200 | SK200-3 | SK200-5 | SK200-6 | SK200-8 | |
| SK200-10 | SK210 | SK210-8 | SK210LC | SK220 | SK230 | SK230LC | SK250 | |
| SK250-8 | SK260 | SK260LC | SK270 | SK300 | SK300-6 | SK300-8 | SK320 | |
| SK330 | SK330-6 | SK350 | SK350-8 | SK350LC | SK380 | SK400 | SK450 | |
| SK480 | SK480-8 | SK485 | SK500 | SK500LC | SK850 | SK850LC | ||
Looking for a specific make or model not listed here? Reach out and we’ll be happy to assist.
Why Choose a Precision-Matched Link Rod
In mid-size machines like the SK120, improper pin-hole sizing or bore misalignment can cause hydraulic inefficiency, premature wear on bushings, and reduced digging accuracy. That’s why our link rods are machined to meet or exceed OEM tolerances, providing:
- Smooth and consistent bucket movement
- Reduced wear on adjoining parts
- Extended service life under load
This is especially critical when working in sensitive foundation projects, narrow job sites, or tilted grading surfaces, where even small inaccuracies can affect machine output.
Maintenance Advice for Extended Life
- Lubricate pivot pins every 250–500 hours, depending on soil condition
- Check bore clearance and pin wear during every major service
- Replace worn pins and bushings with new rod for optimal fit
- Avoid prying or misusing the bucket to reduce stress on linkage components
Proper use and periodic inspection can significantly extend the service life of your link rod and the entire working group.
SHIPPING & DELIVERY
At Kinton Parts, we ensure reliable, worldwide shipping of parts for excavators, bulldozers, and a full range of construction machines—safe, fast, and secure.
All products are securely packed using high-quality export cartons, reinforced wooden cases, or industry-standard palletized packaging to ensure maximum protection during transit and smooth handling during unloading.
Standard orders are typically shipped within 3–5 working days, while large or customized orders are usually dispatched within 7–20 days, depending on volume and production requirements.
We offer flexible global shipping options, including:
- International sea freight for cost-effective bulk transport
- Air freight for urgent orders
- Courier delivery (DHL, FedEx, UPS) for small-volume or sample shipments
Our logistics team manages every shipment carefully, providing real-time updates and tracking information until your order arrives safely at your destination.
Need assistance choosing the best shipping method for your location and timeline? Contact our team — we’ll help you plan a smooth delivery experience.
FAQ
Q: What are your main products?
A: We supply a full range of undercarriage and wear parts for excavators, bulldozers, and other heavy equipment. Our product line includes: Track rollers, carrier rollers, front idlers, sprockets, segments, track shoes, track chains, bolt and nuts, pins and bushings, bucket teeth and adaptors, filters, seal kits, swing bearing, and hydraulic cylinder—plus other essential replacement parts.
Q: Which countries do you export to?
A: Kinton Parts exports to over 60 countries worldwide, including:
USA, Canada, UK, Germany, Russia, UAE, Indonesia, Malaysia, Thailand, India, Pakistan, Bangladesh, Sri Lanka, South Africa, Colombia, Peru, and many others.
Q: Can I order a sample?
A: Yes, we accept trial orders. For parts in stock, samples can be shipped quickly. If you have technical drawings or existing samples, we also support customized production and mold development.
Q: How can I track my order after shipping?
A: Once your order is shipped, we will provide you with all necessary tracking information based on the shipping method. For express deliveries, you’ll receive a tracking number to follow the shipment online. For air or sea freight, we’ll send you the relevant documents such as the airway bill (AWB) or bill of lading (B/L), along with the packing list and commercial invoice to help with tracking and customs clearance.
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Trusted by professionals worldwide, Kinton Parts supplies premium-quality components for excavators, bulldozers, and more—with reliable quality you can count on.
