Kobelco SK230 Use Excavators H-Link for Arm-to-Bucket Connector
High-strength H-link assembly designed for Kobelco SK230 excavators. Forged from durable structural steel and precision-machined to ensure proper boom-arm articulation. A reliable OEM-compatible replacement built for long-lasting performance in harsh environments.
| Colors | Black or yellow or customized |
|---|---|
| Surface Hardness | HRC52-58 |
| Material | Q235B, Q345B |
Quick Quote Request
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 the SK60 H-Link?
The H-link—also known as the boom-arm connecting bracket—is an essential pivoting structure that connects the boom and arm of your excavator. In machines like the SK230, which operate under moderate to high load conditions, the H-link transmits both force and motion during digging, lifting, and material handling cycles. It plays a key role in preserving the structural alignment of the front working group.
When the H-link becomes worn or misaligned, stress begins to shift onto adjacent components such as the boom cylinder, pins, and bushings. Over time, this can lead to increased wear, inaccurate bucket positioning, and even mechanical failure. Using a structurally sound, OEM-matching H-link ensures optimal performance and safety in daily operation.
Material Selection and Manufacturing Process
Each SK230 H-link is crafted from high-strength structural steel—Q345B for enhanced yield and impact resistance or Q235B for cost-effective performance with dependable durability. After material selection, the steel is shaped through closed-die forging, a process that enhances internal grain structure and improves the link's ability to withstand heavy loads.
Once forged, the H-link undergoes CNC machining to achieve precise tolerances, particularly around the pin bores and joint faces. This ensures smooth articulation and perfect fitment with boom and arm components. For areas exposed to cyclic loads, selective heat treatment is applied to boost fatigue resistance.
To prevent corrosion and extend service life, each unit is shot-blasted and coated with either a protective primer or electrophoretic coating (e-coating). This provides long-lasting defense against mud, water, and abrasive job site conditions. Before packaging, every H-link goes through a comprehensive quality inspection, including pin fit tests, dimensional checks, and weld integrity verification, ensuring that each product meets OEM-level performance standards.
Pre-Machining Storage
Before final processing, each H-link is carefully stored after forging and initial shaping. You can see the robust raw units neatly stacked and ready for CNC machining and heat treatment — a testament to our in-house forging capability and batch processing control.
Export-Ready Packaging
Once machining, inspection, and anti-rust treatment are complete, the finished H-links are securely packed in palletized crates or wooden boxes, ensuring safe transport over long distances. All packages are labeled for easy identification and can be customized with your logo or barcode if required.
Fitment & OEM Compatibility
This H-link assembly is fully compatible with the following models:
- Kobelco SK230 / SK230-6 / SK230-8
- Other Kobelco mid-size excavators with matching linkage geometry
If you're unsure about your part number or casting code, feel free to send us your serial number, machine model, or technical drawing — we’ll confirm compatibility within 12 hours.
OEM Undercarriage Parts for Kobelco Excavator
| 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.
Built for Demanding Work Environments
Kobelco SK230 excavators are often found on job sites that require more than just everyday durability. These machines handle trenching for pipelines, lifting reinforced concrete, and digging in dense or rocky soil. In such demanding environments, the H-link must absorb continuous loads and resist fatigue across every work cycle.
Our reinforced H-link assembly is designed specifically for these challenges. It maintains structural integrity under repeated impact and ensures consistent performance even during off-center digging, which often occurs in real-world conditions.
Quality Control Standards
To ensure performance and reliability, each SK230 H-link is subjected to strict quality checks:
- 3D CMM dimensional verification
- Pin bore tolerance test
- Weld and surface flaw detection (ultrasonic)
- Load-bearing simulation where applicable
- Batch material certification (MTC) available upon request
We guarantee every unit shipped meets the mechanical and dimensional standards required for long-term operation.
Installation & Maintenance Tips for Longevity
To maximize the working life of your H-link:
- Grease pin interfaces every 100–200 hours depending on jobsite dust levels
- Inspect pin holes regularly for signs of elongation or bushing wear
- Avoid overloading the boom-arm assembly in one-sided or high-leverage operations
- Replace both the link rod and H-link together if wear is present on both sides
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.
Quick Quote Request
Trusted by professionals worldwide, Kinton Parts supplies premium-quality components for excavators, bulldozers, and more—with reliable quality you can count on.
