Mini Excavator EX30-1 PC30 Track Roller fit Komatsu Hitachi Undercarriage Parts
Premium-quality EX30-1 / PC30 Mini Excavator Track Rollers, built for durability, smooth machine operation, and extended undercarriage life. Manufactured with forged alloy steel and advanced heat treatment, these rollers ensure excellent wear resistance, stable performance, and reduced downtime in tough working conditions.
| 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.
The EX30-1 / PC30 Mini Excavator Track Roller (also known as bottom roller or lower roller) is a vital undercarriage component that supports the track chain and ensures even weight distribution. It plays a key role in maintaining machine stability, traction, and travel efficiency across construction sites, roadwork, and mining environments.
Operating in constant contact with dirt, rocks, and debris, track rollers are exposed to abrasion, impact, and heavy loads. Low-quality rollers can lead to premature track wear, unstable performance, oil leakage, and costly downtime. Our replacement rollers are engineered to OEM specifications, delivering long-lasting durability and reliable sealing performance.
Track Roller Materials Used and Manufacturing Craftsmanship
Our track roller is manufactured from high-quality alloy steel such as 50Mn or 40MnB. These materials are known for their excellent strength and resistance to wear. Through a combination of precision forging and surface hardening treatment, each roller achieves a tough, impact-resistant core with a hardened exterior. CNC machining ensures tight tolerances for perfect sealing and rotational stability, allowing it to perform reliably in demanding job sites.
Manufacturing Process & Quality Control
Every track roller is the result of advanced industrial craftsmanship. We begin with selected raw materials, then implement CNC machining, heat treatment, and component assembly with precision. Each roller is subjected to multiple tests for sealing, alignment, and function before being painted and packaged.
The following is our actual factory production flow chart:
Heat Treatment
Machining Process
CNC turning and milling ensure dimensional accuracy
Assembly
Running Test
Simulated load test to verify functionality
Paint Spraying
Anti-rust coating for surface protection
Packing
Each EX30-1 / PC30 track roller is designed for strength, wear resistance, and stable performance, guaranteeing reliability on the job site.
Key Features & Benefits
- OEM Standard Fit – Direct replacement for EX30-1 and Komatsu PC30 mini excavators.
- Forged Alloy Steel – Manufactured with premium steel and precise machining.
- Advanced Heat Treatment – Enhanced hardness (HRC 53-58) for wear resistance.
- Sealing & Lubrication System – Prevents oil leakage, keeps rollers well-lubricated.
- Extended Service Life – Proven performance in harsh working conditions.
- Wide Applications – Suitable for construction, landscaping, demolition, and light mining.
Compatible Models
| Brand | Models | Category |
|---|---|---|
| Hitachi | EX25, EX30-1, EX35 | Mini Excavator |
| Komatsu | PC20, PC25, PC30, PC35 | Mini Excavator |
| Caterpillar | CAT 301.5, CAT 302.5, CAT 303, CAT 303.5 | Mini Excavator |
| JCB | 801, 802, 803, 804, 805 | Compact Excavator |
| Kobelco | SK20, SK25, SK30, SK35 | Mini Excavator |
| Volvo | EC25, EC27, EC30, EC35 | Compact Excavator |
Contact us for confirmation with part numbers to ensure compatibility.
Why Choose Our Track Rollers?
- OEM replacement quality with precise fitment
- Premium materials & advanced manufacturing
- Reliable sealing system preventing oil leakage
- Extended service life & reduced downtime
- Cost-effective alternative to OEM parts
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.
