EX120 / EX100 / ZX120 Excavator Use Track Roller Supplier
Durable excavators track roller compatible with Hitachi EX120, EX100, and ZX120 series. Built for consistent ground contact, forged for strength, and sealed to resist dust and water—ideal for demanding earthmoving tasks.
| 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.
What Is the Function of Excavator Track Roller on Hitachi EX120 / EX100 / ZX120
Track rollers are crucial lower-structure components that support the machine’s weight, guide the track movement, and maintain tension while operating under pressure. For EX120, EX100, and ZX120, our track rollers are optimized to ensure precise alignment and long-lasting support.
Materials and Heat Treatment of EX120 / EX100 / ZX120 Track Rollers
Our rollers are forged from high-strength 45# steel with deep heat treatment. The roller surface undergoes induction hardening (HRC52–58), enhancing wear resistance for extended field use.
Manufacturing Process of Hitachi EX120 / EX100 / ZX120 Track Rollers
Each roller follows a strict production workflow:
Heat Treatment
The roller body and shaft undergo high-frequency quenching and tempering to achieve a surface hardness of HRC 52–58, enhancing wear resistance and fatigue strength for long-term use in rough terrains.
Machining Process
CNC machining ensures precision on all critical surfaces, including shaft ends, bore diameters, and seal housings. This guarantees a perfect fit, concentric rotation, and smooth installation onto the undercarriage.
Assembly
All components—including shaft, seals, bushings, and O-rings—are assembled in a dust-free environment to prevent contamination and ensure optimal sealing performance under pressure and vibration.
Running Test
Each roller is subjected to a dynamic rotation test to verify concentricity, smoothness, and internal lubrication flow. Any noise, resistance, or oil leakage is checked and corrected before approval.
Paint Spraying
The surface is coated with anti-corrosion industrial paint, often in black or yellow, to protect the roller from rust and harsh environmental exposure during storage and field use.
Packing
Finished rollers are wrapped in anti-rust film and packed into pallets or fumigated wooden crates. Each package is labeled with model, size, and quantity for easy handling and identification.
OEM Undercarriage Parts for Hitachi
| BRAND | MACHINERY MODEL NUMBER | |||||||
|---|---|---|---|---|---|---|---|---|
| HITACHI-EX/ZAX/ZX | EX30 | EX40 | EX55 | EX60 | EX60-2 | EX60-3 | EX60-5 | EX70 |
| EX75 | EX100 | EX100-3 | EX100-5 | EX120 | EX120-1 | EX120-3 | EX120-5 | |
| EX130-1 | EX200-1 | EX200-2 | EX200-3 | EX200-5 | EX200LC-1 | EX200LC-2 | EX200LC-3 | |
| EX200LC-5 | EX220-3 | EX220-5 | EX270 | EX270-1 | EX270-2 | EX270-5 | EX270LC-1 | |
| EX270LC-2 | EX270LC-5 | EX300 | EX300-1 | EX300-2 | EX300-3 | EX300-5 | EX300A | |
| EX300LC-1 | EX300LC-2 | EX300LC-3 | EX300LC-5 | EX330 | EX370 | EX400-1 | EX400-2 | |
| EX400-3 | EX400-5 | EX400LC-1 | EX400LC-2 | EX400LC-3 | EX400LC-5 | EX450 | EX450-1 | |
| EX450-2 | EX450-3 | EX450-5 | EX450LC-1 | EX450LC-2 | EX450LC-3 | EX450LC-5 | UH07-7 | |
| ZAX30 | ZAX55 | ZAX200 | ZAX200-2 | ZAX330 | ZAX450-1 | ZAX450-3 | ZAX450-5 | |
| ZX30 | ZX33 | ZX38U | ZX40 | ZX55 | ZX60 | ZX70 | ZX75US | |
| ZX120 | ZX130 | ZX160LC | ZX200 | ZX210 | ZX240 | ZX270 | ZX330 | |
| ZX360 | ZX400 | ZX450 | ZX470 | ZX500 | ZX650 | ZX850 | ZX870 | |
Looking for a specific make or model not listed here? Reach out and we’ll be happy to assist.
Quality Inspection and Standards
All rollers undergo:
- Ultrasonic flaw detection
- Hardness testing (HRC range)
- Dimensional accuracy inspection
- Final load-bearing simulation tests
This ensures high performance under continuous working cycles, especially in general construction and earthmoving projects.
Compatible Excavator Models
This track roller can be used on the following Hitachi machines:
EX Series: EX100, EX100-2, EX100-3, EX120, EX120-1, EX120-2, EX120-3
ZX Series: ZX120, ZX120-1, ZX130
Quality Control and Testing
Each roller is rigorously inspected for dimensional accuracy, hardness, and surface integrity. Our stringent QC ensures that all units meet or exceed OEM standards for strength, durability, and performance under tough operating conditions.
Application Scenarios
Applicable for:
- General excavation
- Earthmoving
- Utility construction
- Roadwork and pipeline trenching
Maintenance Tips for ZX120 / EX120 / EX100 Rollers
- Keep the seal area clean after extended usage
- Check for oil leakage and replenish as needed
- Avoid heavy impacts when maneuvering over rocky surfaces
- Replace rollers in pairs for better wear balance
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.
