Heavy-Duty Kobelco Excavators SK120 Undercarriage Solution Track Roller Assembly
High-quality SK120 track roller built for Kobelco excavators. With enhanced wear resistance and OEM compatibility, it’s ideal for construction and heavy-duty applications.
| Material | 50Mn/40MnB |
|---|---|
| Surface Hardness | HRC53-58,deepth: 8-12mm |
| Colors | Black or yellow or customized |
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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.
This track roller for Kobelco SK120 excavator is a key component in the undercarriage system, designed to provide stable support, proper weight distribution, and smooth track movement. As a reliable bottom roller for 12-ton excavator undercarriage, it ensures consistent performance during continuous operation, even in rough terrain and demanding working conditions. Engineered as a durable replacement track roller for Kobelco SK120 excavator, this component helps reduce vibration, minimize uneven wear on track links, and improve overall machine efficiency. Its robust construction makes it ideal for long working hours in construction, earthmoving, and infrastructure projects.
Manufactured to OEM specifications, this excavator track roller compatible with Kobelco SK120 models offers precise fitment and easy installation. For machines sharing the same undercarriage configuration, it provides a direct replacement solution, helping reduce downtime and maximize productivity.
Materials and Heat Treatment for Enhanced Durability
Premium Alloy Steel Selection
We use wear-resistant, impact-resistant materials to meet the high demands of the construction industry.
- Body: Forged from 50Mn or 45# steel, offering excellent structural integrity.
- Bushings: Manufactured using 40Cr or 42CrMo, hardened for long-term wear resistance.
- Shaft: High-frequency quenched to a hardness of HRC 52–58, balancing toughness and fatigue resistance.
Advanced Heat Treatment Process
Through controlled quenching and tempering, we achieve uniform surface hardness while maintaining a resilient core, critical for withstanding continuous vibration and load impact in excavation work.
Manufacturing Process of SK120 Track Roller
Heat Treatment
Advanced heat treatment is applied to improve surface hardness and internal strength, enhancing wear resistance and ensuring long-term durability under heavy-duty operation.
Precision Machining
CNC turning and milling processes ensure high dimensional accuracy and perfect fitment with the undercarriage system, reducing installation errors and improving performance.
Component Assembly
Each SK120 track roller is assembled with precision-engineered internal components, including shaft, bushings, and seals, ensuring smooth rotation and reliable sealing performance.
Performance Testing
Every roller undergoes simulated load and rotation testing to verify functionality, stability, and durability before delivery.
Surface Coating
An anti-corrosion coating combined with high-quality paint spraying protects the roller from rust, moisture, and harsh working environments.
Secure Packaging
Products are carefully packed in durable wooden crates to prevent damage during transportation and ensure safe delivery to customers.
From Forging to Assembly – Built with Precision
Every SK120 roller undergoes:
- CNC precision machining
- Surface heat treatment
- Press-fitted bushings and shaft
- Oil seal installation
- Strict dimensional and hardness inspections
This controlled workflow ensures consistency and OEM-level performance.
OEM Undercarriage Parts for KOBELCO
| 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.
Quality Assurance and Testing Standards
Rigorous Quality Control Measures
Each SK120 track roller is tested to meet international standards before delivery:
- Hardness depth and uniformity check
- Leak-proof testing on oil seals
- Tolerance measurement for fit accuracy
- Static and dynamic loading simulation
All rollers are batch-traceable with quality inspection reports available upon request.
Application Scenarios for SK120 Track Rollers
The SK120 excavator is widely used in various fields, including urban infrastructure projects, landscaping and site leveling, agricultural land development, and pipeline trenching. It boasts excellent stability and reliable performance, especially in medium-load excavation environments where geological conditions may vary, helping to ensure smooth operation and consistent productivity. Therefore, having reliable chassis components can reduce downtime and allow your projects to proceed more steadily.
Maintenance Tips for Extended Lifespan
Daily Use Recommendations
To maximize roller lifespan and reduce repair frequency:
- Regularly clean out mud and debris from the undercarriage
- Inspect seals and bearings monthly for signs of leakage or wear
- Re-grease periodically if applicable
- Replace rollers in matched pairs to ensure balanced operation
Proper maintenance can reduce downtime and extend the life of the entire undercarriage system.
FAQ – SK120 Undercarriage Rollers
Q1: Is this track roller compatible with all SK120 variants?
Yes, this roller fits all standard Kobelco SK120 machines and similar models with matching track frames.
Q2: What’s the delivery time for bulk orders?
Typically, we can dispatch within 7–15 working days, depending on quantity.
Q3: Can I request custom branding or packaging?
Yes, we support OEM orders, including logos, part numbers, and customized boxes.
Q4: How do I confirm the part number?
You can cross-check with your OEM manual or send us the excavator’s serial number—our team will match the correct part.
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.
