Arm Cylinder 31Y1-30120 31Y1-28631 Boom Cylinder 31NA-60111 for R290LC-9 R210LC-9 R360LC-7 Excavator

Arm Cylinder 31Y1-30120 31Y1-28631 Boom Cylinder 31NA-60111 for R290LC-9 R210LC-9 R360LC-7 Excavator

The 9292427 9292425 are part numbers of the arm, 31NA-60111 is part number of the boom hydraulic cylinders respectively for the R290LC-9 R210LC-9 R360LC-7 Excavator.

Specification

Construction Material:

Piston Rod: Crafted from 40Cr steel, heat - treated via hardening and tempering, then hard chrome - plated and mirror - polished. This boosts surface hardness, wear resistance, reduces friction, and ensures smooth, long - lasting operation.

Cylinder Barrel: Made of 25Mn steel, tempered to avoid deformation. It has a higher bearing capacity than common C45 or C20 steel, ensuring durability under high - pressure hydraulic forces.

Barrel/Rod End & Head: Forged from high - strength steel, these parts offer superior strength and toughness to endure operational stress and shock.

Seal Kits: Premium seal kits from renowned brands like NOK or SKF prevent hydraulic fluid leaks, maintain system pressure, and optimize cylinder performance.

Company Information

With over 16 years of experience in hydraulic cylinder manufacturing, GLPARTS has exported products to more than 100 countries worldwide, including the United States, Germany, Australia, and the Middle East. Backed by a skilled team of engineers and a responsive sales force, we provide comprehensive support—before, during, and after the sale—to ensure your satisfaction every step of the way.

Why Choose Us

OEM/ODM Capabilities
Competitive Pricing & Bulk Discounts
Fast Shipping & Customs Clearance Support

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