OEM SY485 Arm Cylinder Excavator Hydraulic Excavator Stick Cylinder

Product Description

Features

1.Perfect Fit for SANY SY485

• OEM Standard Compatibility – Engineered to match the original specifications of SANY SY485 for seamless installation.
• Enhanced Structural Strength – Built to withstand heavy-duty excavation tasks with minimal wear.

2.Advanced Material & Manufacturing

• Cylinder Rod – High-frequency surface hardened to HRC 55, plus hard chromium plating for superior wear resistance.
• Cylinder Tube – Made from 25Mn steel, offering excellent anti-wear and impact resistance.
• Cylinder Heads – Constructed from high-strength hardened steel for extended lifespan.
• Sealing System – Equipped with imported Japan NOK and US SKF seals, ensuring a hydraulic oil leakage rate below 1%.
• Automatic Welding – Delivers stronger, smoother welds, eliminating weaknesses found in manual welding.

3.Technical Support & After-Sales Service

• Professional Consultation – Our experts assist with model selection, installation guidance, and troubleshooting.
• Fast Delivery & Spare Parts Supply – Minimizing downtime and ensuring uninterrupted operations.
• Warranty & Quality Assurance – Rigorous 100% quality inspection before shipment for guaranteed reliability.

4.Common User Pain Points Solved:

a.Leakage issues? Our premium seals and precise machining keep hydraulic oil leakage under 1%.
b. Frequent wear & tear? Reinforced materials extend service life, reducing maintenance costs.
c.Slow response from suppliers? Our professional team ensures fast after-sales service and technical support.

For SANY SY485 excavator owners, this hydraulic arm cylinder is the ultimate choice for long-lasting, efficient performance. Contact us today for a quote!

Product Display

Company Information

GuangZhou GuoLi Engineering Machinery Co., Ltd., with over 16 years of experience in excavator hydraulic cylinders, is a foreign trade company specializing in a wide range of products, including crawler excavator arm cylinders, boom cylinders, bucket cylinders, cylinder tubes, cylinder rods, custom hydraulic cylinders, seal kits, hydraulic pumps, and electric parts, all designed for various excavator models. Our products have been exported to over 100 countries and regions worldwide.

Factory Tour

Our main product, excavator cylinders, is produced through a complete hydraulic cylinder production line, from design to manufacturing. With over ten years of experience, we’ve upgraded our offerings to multi-stage hydraulic cylinders. We focus on cylinder customization and produce a variety of domestic and imported excavator cylinders. Using advanced CNC lathes, grinders, and assembly equipment, we strictly follow ISO quality standards throughout production.

Piston Rod Production Process

Automatic Welding Process

Finished Product Warehouse Display

Exhibition Showcase

Our Presence at Major Exhibitions: 2023 Malaysia & 2024 Shanghai Bauma

Exhibition With Cooperated Clients

Certificates

Certification

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.