RHK Machinery Delivers Precision-Machined Pins Engineered for Strength, Fit, and Field Performance
In the construction and earthmoving industries, equipment failure is not an alternative, and that is why integrity of components, which are under stress, is very important. Component integrity is especially crucial, such as in the bucket connection, and at that point, the correct functioning of the bucket and arm as a single unit is extremely important. The bucket pin is the central part of any digging operation: although outwardly simple, it is a crucial part that ensures that the bucket and the arm are safely and effectively operated.
Moreover, RHK Machinery, mindful of their role as reputable manufacturers of high-quality excavator parts, caters to the industrial market by providing various durable bucket pin solutions with assured cross-brand compatibility. As RHK Machinery has an efficient production line in China and is able to ship products to over 60 countries worldwide, they have earned themselves the reputation of reliable china excavator undercarriage suppliers for international contractors, dealers, and OEMs.

Why Bucket Pins Matter More Than You Think
The bucket pin is the rotating joint that connects an excavator’s bucket to its stick and linkages. Every movement—digging, lifting, trenching—relies on this pin to:
- Withstand massive loads
- Resist abrasive wear
- Maintain tight fit tolerances over time
A poorly manufactured or worn-out pin can lead to misalignment, increased stress on the hydraulic system, premature bushing wear, and even structural damage to the boom or bucket.
That’s why RHK Machinery uses high-strength alloy steel, advanced heat treatment, and CNC precision machining to produce bucket pins that match or exceed OEM performance.
Full Range of Excavator Parts – Beyond the Bucket Pin
While bucket pins are a core product, RHK also supplies a complete portfolio of excavator parts, including:
- Boom and arm bushings
- Track rollers, carrier rollers, sprockets, and idlers
- Hydraulic cylinders and seals
- Track chains and links for crawler excavators
As one of the most established china excavator undercarriage suppliers, RHK ensures every part is compatible with global brands such as Caterpillar, Komatsu, Hitachi, Volvo, Doosan, and Kobelco.
Clients can also request custom machining for unique models or legacy machines, with low MOQs and fast delivery.
Key Features of RHK’s Bucket Pin Solutions
Whether you’re performing field maintenance or sourcing OEM replacements, RHK’s bucket pin products offer:
- Induction hardening for wear resistance up to 55–60 HRC
- Precision grinding to achieve tight clearances
- Anti-corrosion coating or black oxide finish
- Customization for oversized or repair-fit pins
Standard sizes range from 25mm to 120mm in diameter and 100mm to 800mm in length, with metric and imperial dimensions available upon request.
Quality That Speaks in the Field
RHK Machinery backs every shipment with:
- Material traceability and QC reports
- Strict ISO 9001:2015 quality management
- Surface hardness and core toughness testing
- Professional packaging to protect against transport damage
Repeat clients include heavy machinery rental companies, maintenance workshops, and equipment resellers who rely on RHK for consistent supply and dependable durability—even under extreme site conditions.
Global Reach, Local Support
With overseas warehousing and multilingual technical teams, RHK supports clients across Southeast Asia, the Middle East, Europe, and Latin America. Whether you need a single bucket pin or a full container of mixed excavator parts, RHK ensures:
- Fast quote turnaround
- Flexible delivery terms (FOB, CIF, EXW)
- Clear part labeling and export documentation
- Technical drawings for verification
As your reliable partner among china excavator undercarriage suppliers, RHK offers more than just parts—it delivers peace of mind in every shipment.
Built to Connect. Built to Last.
From core components like bucket pins to full-scale undercarriage systems, RHK Machinery is committed to delivering high-strength solutions that keep your machines digging longer and stronger. Precision-engineered and field-tested, RHK products are built to work as hard as your team does.