440-00257B 44000257B 440-00257AKT K1036107 Arm Hydraulic Cylinder for SOLAR S300LC-V Excavator

Prouduct Description

FAQ

Q1: Can overloading damage the hydraulic cylinder?
A1: Yes. Operating the machine beyond its rated pressure or lifting capacity can cause seal failure, rod bending, or internal damage. Always follow your excavator's operational limits.

Q2: What kind of hydraulic oil should I use with your cylinders?
A2: We recommend anti-wear hydraulic oils like ISO VG 46 or 68, depending on your working environment. Always make sure the oil is clean and free from contamination, as dirty oil is a major cause of cylinder failure.

Q3: Can I replace the seals myself?
A3: Yes, if you have basic mechanical knowledge and tools. We provide step-by-step instructions or tutorial videos. However, if you’re unsure, we recommend having it done by a professional to avoid internal damage.

Q4: How can I prevent rust or corrosion on the cylinder rod during storage?
A4: Apply rust-proof oil or grease to the rod and store the cylinder in a dry, covered place. Avoid exposure to moisture or rain. If storing long-term, operate the rod regularly to keep the seals lubricated.

Q5: How long do your hydraulic cylinders typically last?
A5: Under normal operating conditions and with proper maintenance, our hydraulic cylinders can last 3–5 years or longer. Lifespan also depends on working environment, usage frequency, and hydraulic oil quality.

Package & Shipping

Company Profile

Guangzhou Guoli Engineering Machinery Co., Ltd.
With over 16 years of dedicated experience in hydraulic cylinder manufacturing, we have established ourselves as a trusted supplier in the global excavator parts industry. Our products are exported to more than 100 countries worldwide, serving customers across construction, mining, and agricultural sectors.

At Guoli, we believe quality starts at the source. From raw material selection to final assembly, every step is meticulously controlled to meet the highest industry standards. We utilize advanced production technology and equip our cylinders with high-performance sealing systems—ensuring durability, excellent resistance to wear and pressure, and minimal hydraulic oil leakage.

Whether you need standard components or customized solutions, we deliver reliability, efficiency, and long-term value in every cylinder we produce.

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.