Hydraulic Stick Boom Arm Cylinder SY215 Excavator For Sany Parts

Product Description

Product Display

Common Pain Points of Excavator Hydraulic Cylinders

1. Cylinder Rod Bending or Damage, Affecting Work Efficiency

Pain Point: During high-intensity operations (e.g., breaking or heavy digging), the hydraulic cylinder rod may bend due to excessive external force, leading to downtime and costly repairs.
✅ Solution: Our cylinder rods are made with high-frequency surface hardening, achieving a hardness of up to 55, and treated with hard chromium plating to enhance bending resistance and durability, significantly extending their lifespan.

2. Cylinder Tube Wear, Leading to Leakage

Pain Point: The inner wall of the hydraulic cylinder tube may experience excessive wear due to high-pressure hydraulic flow and repeated piston movement, affecting sealing performance and causing hydraulic oil leakage.
✅ Solution: We use 25Mn alloy steel for the cylinder tube, which offers superior wear resistance compared to standard materials, ensuring long-term performance and reducing leakage risks.

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

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.