31QB-63110 310B-63111 31V1-35620 31V1-35621 R520LC-9S Excavator Bucket Hydraulic Cylinder Assy
Our OEM-quality excavator hydraulic cylinders are made from high-strength steel for durability and long service life, fully compatible with original specifications.
Specification
| Product Name |
Excavator Hydraulic Bucket Cylinder Assembly
|
Part Number |
31QB-63110 310B-63111 31V1-35620 31V1-35621 |
| Model |
R520LC-9S |
Hardness |
up to HRC62 |
| Application |
for Hyundai Excavator |
Warranty |
12 Months |
| Type |
Double Acting |
OEM |
YES |
What materials are used in excavator hydraulic cylinders?
Excavator hydraulic cylinders are primarily constructed from hardened high-strength alloy steel to ensure durability under high-pressure operations.
Cylinder Barrel: Typically made of precision-honed alloy steel or carbon steel, offering high fatigue strength and resistance to internal pressure.
Piston Rod: Manufactured from chrome-plated hardened steel, often achieving surface hardness up to HRC 62, which enhances wear resistance and corrosion protection.Many different metals are used to make the cylinder rods, but most commonly, theyare made of steel or stainless steel and then coated with a type of chrome material.
Rod Coating: The rod surface is usually treated with hard chromium plating to reduce friction and extend service life.
About Us
With over 16 years of experience in hydraulic cylinder manufacturing, GLPARTS is a trusted supplier serving the global construction machinery industry. Equipped with advanced production facilities and precision technology, our products are exported to more than 100 countries, including the United States, Germany, Australia, and the Middle East.
Backed by a skilled team of engineers and a highly responsive sales force, we offer comprehensive pre-sales, in-sales, and after-sales support to ensure customer satisfaction at every stage.
We maintain a large inventory of excavator parts to guarantee fast delivery and support urgent project needs. Whether you need standard models or custom solutions, GLPARTS is your reliable partner for durable, high-performance hydraulic components.
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