31N9-50130 31N9-50131 Arm Hydraulic Cylinder Assy for Handle R320LC-7 R320LC-7A Excavator

Prouduct Description

Hydraulic Arm Cylinder for Hyundai R320LC-7 R320LC-7A Excavator

Part Number:31N9-50130 31N9-50131 31N950130 31N950131

Company Profile

With over 16 years of expertise in the excavator parts industry, GLPARTS specializes in manufacturing hydraulic cylinders (arm, boom, bucket) and supplying a full range of excavator components, including hydraulic pumps, control valves, gear pumps, motors, diesel engines, solenoid valves, oil seals, and hydraulic cylinder tools.

We serve clients in more than 100 countries, such as the United States, Australia, Indonesia, and Brazil, earning a strong reputation for reliability and consistent quality. From raw material selection to final testing, we enforce strict quality control to ensure outstanding durability and performance.

Backed by a skilled team and fast delivery capabilities, GLPARTS is committed to providing not just parts, but complete solutions — built to perform, made to last.

Why Choose US

Precision Machining: CNC equipment ensures tight tolerances and smooth performance.

Durable Materials: 25Mn steel tubes and hardened alloy rods offer excellent wear resistance.

Advanced Surface Treatment: Rods are quenched and chrome-plated for corrosion protection.

Reliable Sealing: Imported NOK/SKF seals keep leakage under 1%.

Automated Welding: Consistent, high-strength welds ensure long-term durability.

Full Quality Check: Every unit is pressure and performance tested before delivery.

More Cylinders We Can Provide

Guangzhou Guoli Engineering Machinery Co., Ltd., located in GuangZhou city, benefits from a large construction machinery parts market and convenient transportation access. Our company specializes in producing a range of excavator hydraulic cylinders, including excavator arm cylinders, boom cylinders, bucket cylinders, cylinder tubes, and cylinder rods. With 10+ years expertise, we've established a complete production line from R&D to manufacturing, offering OEM customization and precise part number systems with technical specifications/photos/pricing. We pride ourselves on using premium materials such as high-strength steel and advanced processing technologies to ensure durability and performance.

In addition to hydraulic cylinders, we also provide a comprehensive range of other hydraulic components. This includes hydraulic pumps, swing motor, control valve,travel motors,engine parts,and undercarriage components, all designed for use in various excavator models. Our extensive product portfolio reflects our commitment to delivering complete solutions for construction machinery, ensuring that all critical components are available to meet the needs of our customers.

We serve a global customer base, including clients from Thailand, the Philippines, Indonesia, Malaysia, the United States, Turkey, Russia, Mexico, and many other countries. Our products have been recognized and recommended by local dealers and are highly regarded for their quality and reliability. With our competitive prices, timely delivery, and outstanding customer service, we are committed to providing the best solutions for each client. We warmly welcome inquiries from businesses worldwide and look forward to establishing long-lasting partnerships.