SANY SY335C Track Link Chain Assembly for Sale

This premium track link assembly for the SANY SY335C is designed for demanding jobsites, featuring forged steel construction, deep-hardened bushings, and smooth pin-to-bore fitment for longer running life and reduced undercarriage maintenance.

Material35MnB/40Mn2
Surface HardnessHRC53-58
ColorsBlack 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.

BULLDOZER UNDERCARRIAGE PARTS FOR INQUIRY NOW
Description

The SANY SY335C is a popular choice for contractors working in long-cycle excavation, mining support, and large-scale earthmoving. These conditions place constant pressure on the undercarriage, especially the track chain. A reliable track link assembly ensures proper pitch stability, smooth travel, and balanced load distribution across the rollers and sprocket. This SY335C track chain is built to serve those requirements with dependable durability and consistent mechanical integrity.

Forged Link Structure for Superior Impact Resistance

Each link is forged from high-quality alloy steel to achieve a dense internal grain structure that resists cracking during high-impact work. The forging process helps maintain uniform strength throughout the entire link, especially around the critical areas such as the bushing seat and pin bore. After machining, the link surfaces are finished to ensure steady pitch alignment, reducing the risk of uneven wear when the machine operates on abrasive ground or frequently turns with heavy load.

Deep-Hardened Bushings for Extended Rotational Life

Bushings are one of the most stressed components in the track chain, and their wear rate directly determines how long the whole assembly can be used before needing replacement. For the SY335C, the bushings are carburized to create a deep, wear-resistant case layer that stands up to prolonged metal-to-metal contact with the sprocket. The core retains toughness to prevent cracking while absorbing cyclical impact forces.
This balanced hardness profile ensures stable performance even when the machine works in gravel pits or compacted soil where sprocket engagement is more aggressive.

Precision-Matched Pins for Smooth Movement

The SY335C track pins are heat-treated and ground to achieve a consistent cylindrical finish. This precision fit helps maintain the ideal oil film between the pin and bushing, reducing friction and preventing premature internal wear. During assembly, each pin and bushing pair is pressed according to calibrated interference values, ensuring controlled rotational resistance—neither too loose nor excessively tight. This gives the track chain a smooth, steady motion throughout its service life.

Chain links

Track Link Forging & Machining

The raw track links are forged into form, then machined to ensure uniform pitch and hole alignment. Precision is essential for proper sprocket and bushing engagement.

chain bushing and pin

Pin and Bushing

Hardened pins are inserted between the links to create a flexible, load-bearing chain. The sealing system prevents grease leakage and contaminant ingress.

chain Paint

Painting & Surface Coating

After assembly, the entire chain is cleaned and painted with industrial-grade coatings to protect against rust, humidity, and chemical corrosion on job sites.

track chain paking

Final Inspection & Packaging

Before shipping, the chains undergo dimensional checks and torque verification. Chains are then packed securely on wooden pallets or steel frames to avoid deformation.

Improved Sealing to Keep Lubrication Inside

To protect the internal pin-bushing lubrication, the chain uses a reliable seal system that prevents dust and mud from entering the joint. Over time, proper sealing dramatically reduces wear inside the bushing bore and helps the track chain keep its original pitch for thousands of working hours.
This feature is especially beneficial for SY335C owners working in wet clay, riverbed soil, or jobsites with fine sand where contamination usually causes rapid internal abrasion.

Consistent Pitch Accuracy for Better Undercarriage Harmony

Pitch stability is essential for ensuring proper engagement between the chain, rollers, and sprocket. Each link is machined with narrow tolerances to maintain uniform pitch across the entire chain. This prevents rhythmic vibration, reduces roller impact, and helps the sprocket teeth wear evenly.
For the SY335C—often operated in long, continuous passes—this precision reduces undercarriage noise, improves travel smoothness, and extends the lifespan of the entire bottom-frame assembly.

Quality Control and Inspection

Before leaving the factory, every complete chain is subjected to multiple inspections, including pitch measurement, bushing hardness testing, pin straightness checks, and link-to-link alignment verification. The chain is also tension-tested to confirm that the joints rotate within the proper torque range.
These checks ensure consistent performance and help reduce maintenance burdens on fleet managers and operators.

Perfect Fitment for SANY SY335C Excavators

The chain is built according to SY335C undercarriage specifications, matching sprocket profiles, roller spacing, and frame geometry. Installation is straightforward and requires no modification, making it a direct replacement for worn or stretched OEM chains.

BRAND MACHINERY MODEL NUMBER
SANY SY16C SY26C SY35U SY50U SY60C SY75C SY95C SY120C
SY135C SY155U SY210C SY215C SY235C SY305C SY365C SY485C
SY750H SY855C SY875C SY950D SY135U SY215U SY305U SY365U
SY485U SY135S SY215S SY305S SY365S SY485S

Looking for a specific make or model not listed here? Reach out and we’ll be happy to assist.

Maintenance Recommendations

To extend the track chain’s life, operators should maintain proper tension, avoid prolonged high-speed travel on hard surfaces, and remove packed material from the undercarriage at the end of each shift. Regular inspection of bushings, rollers, and sprocket engagement will help detect early signs of pitch stretch or abnormal wear.

Shipping & Delivery

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.

excavator parts loading truck 4
excavator parts loading truck 2
excavator parts loading truck 1

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.

BULLDOZER UNDERCARRIAGE PARTS FOR INQUIRY NOW