High Quality 40Cr Steel Excavator Track Pin 36.7*210MM - China Suppliers Direct from Factory

Choosing the right supplier is about more than price—it is about consistency, capability, and trust. Quanzhou Hesen Machinery Industry Co., Ltd. has been serving the heavy machinery sector since 1990, building a legacy of over 30 years in the design, development, production, and sale of undercarriage parts. Our main offerings include track rollers, carrier rollers, sprockets, idlers, track link assemblies, track shoes, bushings and pins, bucket teeth, and high-strength bolts and nuts. With large warehouses supporting fast delivery and a dedicated team focused on quality, we are structured to support long-term partnerships. We believe in proactive communication, dependable after-sales support, and continuous improvement. If you are looking for a manufacturer who treats your business with the same care and professionalism that we have applied for three decades, we welcome you to send us your inquiry. Let us begin a conversation about how we can support your success with reliable products and a stable supply chain.

• Q What material is used to manufacture the excavator track pins?
  Our excavator track pins are manufactured using high-strength 40Cr alloy steel. This material undergoes professional heat treatment processes to deliver outstanding wear resistance, abrasion resistance, and a long service life of up to 2,000 hours under heavy-duty operating conditions.
• Q What excavator models are these track pins compatible with?
  Our standard track pin size of 36.7×210MM is precisely engineered to fit the Caterpillar E320 excavator. We also supply track pins compatible with a wide range of 20–50 ton excavators. Custom sizes are available based on your samples or technical drawings.
• Q Do you support OEM and custom-size orders?
  Yes, we fully support OEM production and custom sizing. Customers can provide samples, drawings, or specifications, and our engineering team will produce track pins that meet your exact requirements. Both small batch and large-volume orders are welcome.
• Q How long has Quanzhou Hesen Machinery been in the industry?
  Quanzhou Hesen Machinery Industry Co., Ltd. has been operating since 1990, accumulating over 30 years of experience in the design, development, production, and sale of undercarriage parts for heavy machinery. Our product range includes track rollers, carrier rollers, sprockets, idlers, track shoes, bushings and pins, bucket teeth, and high-strength bolts and nuts.
• Q What surface treatment is applied to the track pins?
  Our track pins undergo precision polishing and optional custom phosphating treatment. These processes enhance corrosion resistance, improve surface hardness, and extend the overall working life of the pin in demanding excavation environments.
• Q What after-sales support do you provide?
  We provide reliable after-sales service including proactive communication, technical support, and assistance with any product quality concerns. Our large warehouse infrastructure also enables fast delivery, ensuring minimal downtime for your operations. We are committed to building long-term partnerships based on trust and consistent product quality.