PC220 PC270 Bucket Arm H Link fit Komatsu Excavator
This Komatsu PC220/PC270 H Link (206-70-00830) is a reinforced structural connector engineered for high-impact excavator applications. Designed with premium alloy steel, precision bushings, and optimized geometry, it delivers exceptional strength, smooth joint movement, and long-term reliability in heavy earthmoving environments.
| 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.
The H Link for Komatsu PC220-7, PC220-8, and PC270-8 excavators serves as one of the most critical structural components within the bucket linkage system. Positioned between the bucket and the stick cylinder linkage, the H Link must absorb enormous forces during penetration, breakout, lifting, and repetitive loading cycles. The 206-70-00830 model is engineered for machines that frequently work in quarrying, foundation excavation, demolition, and high-load mining tasks, where reliability and structural integrity cannot be compromised.
Unlike smaller models, the PC220/PC270 series operates with greater hydraulic pressure and higher bucket breakout force, which places additional stress on the H Link. For this reason, the component is built with enhanced material strength, improved wear interfaces, and precise machining standards to ensure stable geometry and smooth mechanical articulation throughout thousands of duty hours.
High-Strength Alloy Steel for Superior Structural Stability
To withstand the extreme compressive and rotational forces generated during heavy digging, the H Link is manufactured from high-grade alloy steel. This material provides the toughness required to handle shock loads while resisting deformation from side stress or torsion.
The forging process creates a dense and uniform internal grain structure, enhancing fatigued resistance and reducing the likelihood of surface cracking under severe vibration. Deep heat-treatment hardens critical zones while preserving a flexible core, ensuring long-term durability even during continuous operations in rock-rich or compact soils.
Precision Machining for Smooth Joint Movement
Accurate alignment is essential for the H Link to function properly within the bucket linkage system. The 206-70-00830 model is machined with tight tolerances on all bore surfaces, guaranteeing:
- stable pin fitment
- centered load transfer
- smooth articulation with reduced friction
- minimized wear on bushings and cylinder components
The internal bores are honed to achieve a consistent surface finish, which improves lubrication retention and slows down bushing wear during repetitive pivot movements. This level of precision ensures that the linkage maintains consistent breakout force and digging efficiency throughout its service life.
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.
Enhanced Bushings & Wear-Resistant Interfaces
The PC220/PC270 H Link is equipped with highly wear-resistant bushings engineered for rotational stability under heavy hydraulic loads. The bushing surfaces undergo controlled hardening to provide exceptional resistance to abrasive particles such as sand, granite dust, and clay fines.
The combination of hardened bushings and lubricated pivot points allows the linkage to operate with reduced noise, smoother cycles, and greater consistency during high-frequency loading and unloading.
Enhanced Bushings & Wear-Resistant Interfaces
The PC220/PC270 H Link is equipped with highly wear-resistant bushings engineered for rotational stability under heavy hydraulic loads. The bushing surfaces undergo controlled hardening to provide exceptional resistance to abrasive particles such as sand, granite dust, and clay fines.
The combination of hardened bushings and lubricated pivot points allows the linkage to operate with reduced noise, smoother cycles, and greater consistency during high-frequency loading and unloading.
OEM-Level Compatibility (206-70-00830)
Our H Link assembly matches OEM specifications for:
- Komatsu PC220-7
- Komatsu PC220-8
- Komatsu PC270-8
It is compatible with OEM bucket linkages, pin sets, side links, cylinders, and related components. Installation is straightforward, and correct dimensional matching ensures proper bucket alignment and smooth hydraulic motion.
| BRAND | MACHINERY MODEL NUMBER | |||||||
|---|---|---|---|---|---|---|---|---|
| KOMATSU-PC | PC20 | PC30-5 | PC30-6 | PC30-7 | PC30-8 | PC35 | PC40 | PC45 |
| PC50 | PC55 | PC40-5 | PC40-6 | PC40-7 | PC50 | PC55 | PC60-1 | |
| PC60-3 | PC60-5 | PC60-6 | PC60-7 | PC75 | PC100-1 | PC100-3 | PC100-5 | |
| PC100-6 | PC100-7 | PC120-3 | PC120-5 | PC120-6 | PC120-7 | PC150 | PC200-1 | |
| PC200-3 | PC200-5 | PC200-6 | PC200-7 | PC200-8 | PC220-1 | PC220-3 | PC220-5 | |
| PC220-6 | PC220-7 | PC220-8 | PC200LC-3 | PC200LC-5 | PC200LC-6 | PC200LC-7 | PC200LC-8 | |
| PC240 | PC300-1 | PC300-5 | PC300-6 | PC300-7 | PC300LC | PC300LC-5 | PC300LC-6 | |
| PC300LC-7 | PC360-5 | PC360-6 | PC360-7 | PC360LC-5 | PC360LC-6 | PC360LC-7 | PC360LC-8 | |
| PC400-1 | PC400-3 | PC400-5 | PC400-6 | PC400-7 | PC400LC-1 | PC400LC-3 | PC400LC-5 | |
| PC400LC-6 | PC400LC-7 | PC450-5 | PC450-6 | PC450-7 | PC450LC-5 | PC450LC-6 | PC450LC-7 | |
| PC650 | PC750 | PC800 | PC350 | |||||
Looking for a specific make or model not listed here? Reach out and we’ll be happy to assist.
Performance in Harsh Earthmoving Conditions
Operators of PC220–PC270 excavators often work in environments where equipment reliability is critical. This H Link performs exceptionally well in:
- rocky excavation
- deep foundation work
- pipeline trenching
- mining and aggregate handling
- demolition and construction debris loading
Its highly reinforced structure and smooth articulation allow the machine to maintain full hydraulic power without linkage distortion or sudden performance drops.
Quality Assurance & Testing
Each PC60 H Link undergoes multiple inspection stages, including:
- ultrasonic testing of forging density
- hardness verification across connection zones
- pin-hole roundness measurement
- dimensional inspection using CNC coordinate measurement tools
- surface treatment adhesion testing
Only components that meet OEM-level standards are released for shipment.
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.
