High-Performance ZX370 Sprocket for Hitachi Excavators
This Hitachi ZX370 sprocket, ensuring efficient power transfer, smooth track engagement, and extended service life under demanding excavation conditions. It is built for strength, compatibility, and maximum resistance to wear in mining, quarrying, and construction environments.
| 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 Hitachi ZX370 sprocket is a vital component of the undercarriage drive system. It engages directly with the track chain to convert hydraulic power into mechanical motion. A well-designed sprocket:
- Maintains accurate track movement and minimizes vibration
- Ensures uniform power transmission to the tracks
- Reduces track link wear through optimized tooth geometry
- Supports high-torque output in heavy-duty operations
By using our ZX370 sprocket, excavator owners can expect stable machine performance, reduced maintenance intervals, and minimized downtime.
Premium Alloy Steel & Advanced Heat Treatment
Each ZX370 sprocket is crafted from high-strength alloy steel (typically 35Mn, 40Mn2, or 42CrMo) selected for its excellent fatigue and impact resistance. The entire gear rim is surface hardened using precision induction techniques to achieve a hardness of HRC 50–58.
This dual-layer strength — tough core with hardened surface — ensures:
- Excellent resistance to abrasive wear
- Minimal deformation under dynamic loads
- Long service life even in abrasive or rocky terrain
Integrated Manufacturing and Precision Engineering
Our production process combines cutting-edge technology and strict quality standards to ensure each sprocket meets OEM-grade precision. The process includes:
- CNC-controlled tooth shaping for exact pitch and tooth depth
- Inner ring fitting with concentricity control within ±0.02 mm
- Tooth flank grinding for smooth chain engagement
- Digital inspection of all critical dimensions
- Automated drilling for accurate bolt hole alignment
These processes ensure consistent quality, quiet operation, and compatibility with your existing undercarriage components.
Production Process for ZX370 Sprocket
The ZX370 sprockets are manufactured using a standardized, multi-step process that ensures precision and quality at every stage: from tooth rough machining and inner ring installation to heat treatment, tooth finishing, cleaning, and painting. These steps guarantee a smooth, durable, and reliable sprocket ready for field use in demanding excavating tasks.
Tooth Rough Machining
The sprocket blank is machined on a CNC lathe or gear hobbing machine to form the basic tooth profile.
Precision Machining
The inner ring is inserted and the entire part is precisely machined to ensure concentricity and dimensional accuracy.
Drilling
Mounting and lubrication holes are drilled to meet the installation and functional requirements.
Tooth Grinding & Finishing
After heat treatment, the sprocket teeth are ground or polished to remove burrs and ensure smooth engagement.
Surface Cleaning
The sprocket undergoes surface cleaning, removing scale and residue, preparing it for surface treatment.
Painting & Final Coating
The sprocket is coated with durable industrial paint (available in various colors), providing corrosion resistance and a clean, professional appearance.
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.
OEM Fitment and Compatibility with Hitachi Models
Compatible Models
This sprocket is designed for use with the following Hitachi machines:
- ZX370
- ZX370LC
- ZX370H
- ZX370LCH
- Also compatible with certain ZX360/ZX350 variants with identical hub profiles.
OEM Reference Numbers
- 204-27-00300
- 204-27-00290
Please confirm with machine serial number or technical drawings before placing an order.
Rigorous Quality Control for Reliable Field Performance
Every ZX370 sprocket undergoes strict inspection during and after production. We use hardness testing, runout tests, and surface profile verification to ensure every unit meets or exceeds OEM specifications. These measures reduce downtime and ensure long-term reliability in rugged environments.
Application Scenarios: Built for Rugged Excavation Environments
The ZX370 sprocket is widely used in:
- Open-pit mining operations
- Road construction and infrastructure work
- Forestry and logging applications
- Demolition and quarry jobsites
Its reinforced structure and hardened teeth handle high loads and long working hours with minimal maintenance.
Maintenance Tips for Longer Service Life
To keep your sprocket performing at its best:
- Inspect teeth for abnormal wear or cracking every 500–800 working hours.
- Ensure track tension is within the recommended range to prevent tooth damage.
- Replace the sprocket and chain as a matched set to avoid uneven wear.
- Lubricate hardware connections to prevent rust and bolt loosening.
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.
