Excavator Parts Bucket Linkage Link Rod Factory for Hitachi EX30
Compact link rod engineered for Hitachi EX30 mini excavators. Made from forged structural steel and CNC-machined for precision fit and alignment. Rust-resistant finish for long-term durability in tight-space and high-cycle working conditions.
| 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 Hitachi EX30
The link rod—sometimes called the bucket link arm—is an essential structural element in compact excavators like the Hitachi EX30, transmitting force between the bucket cylinder and bucket mechanism. Even on small machines, this component handles considerable stress during operations like trenching, grading, and pipe laying.
Because mini excavators like the EX30 operate in restricted, repetitive, and high-contact environments, the link rod must be both lightweight and structurally sound. A poorly designed or worn link rod can lead to bucket misalignment, pin deformation, and reduced hydraulic performance—especially noticeable in machines used for delicate excavation or landscaping tasks.
Material Strength and Structural Integrity
This EX30 link rod is forged from Q345B or Q235B structural steel, depending on operational demands. Despite the machine’s size, the structural integrity of the link rod is critical, especially when dealing with offset digging, side loads, or frequent backfilling motions.
Forging significantly improves material density and impact resistance, ensuring the part resists cracking, warping, or sudden fracture under vibration and variable force. For operators working in tight residential spaces or uneven terrain, this added toughness helps extend both rod life and pin service intervals.
After forging, the link rod undergoes high-precision CNC machining, especially around pin holes and mounting interfaces. This ensures smooth operation and eliminates issues caused by bore misalignment, which can quickly wear out other connected parts in the small linkage system.
Surface treatment includes shot blasting followed by either a primer coat or e-coating, offering protection against mud, water, and construction site debris. This is especially important for EX30s working in humid climates, irrigation tasks, or long-term outdoor deployment.
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 for Hitachi EX30 models and direct variants with standard linkage setup:
EX30 / EX30-1 / EX30UR / EX30-2 / EX30-3
Not sure if this part fits your machine? Just send us your machine serial number, casting code, or dimensional drawing—we’ll verify within 12 hours.
OEM Undercarriage Parts for Hitachi Excavator
| 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.
Real-World Performance in Mini Excavator Applications
EX30-class excavators are widely used in urban infrastructure, garden and park maintenance, and tight foundation excavation. These environments combine repetitive motion, close-quarter maneuvering, and quick cycling—all of which demand a precise, fatigue-resistant linkage.
Our link rod provides the necessary rigidity and precision to maintain bucket control accuracy, minimize stress on bushings and pins, and reduce mechanical play during digging and backfilling. For equipment rental fleets or contractors operating in confined sites, this link rod delivers consistent, low-maintenance performance.
Maintenance Tips to Extend Service Life
Even for compact machines, proper maintenance is key:
- Lubricate pin joints regularly to prevent metal-to-metal abrasion
- Inspect bore roundness and pin fit every 800–1,000 hours
- Replace pins and bushings together when installing a new link rod
- Avoid overloading or using the bucket as a pry bar to maintain rod integrity
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.
