Excavator Boom Hydraulic Cylinder 4370783 4370782 For Hitachi EX150 EX150LC-5

Excavator Boom Hydraulic Cylinder 4370783 4370782 for Hitachi EX150 EX150LC-5

Engineered for maximum performance and long-term reliability, the Hitachi hydraulic cylinder is built to excel in demanding applications across agriculture, construction, and industrial machinery. Designed to perform in the harshest environments, it provides a cost-effective yet dependable alternative to OEM hydraulic components—without compromising on quality or efficiency.

Key Features:

Extreme Load Capacity – Handles heavy lifting and intense workloads with consistent power output.

Versatile Applications – Suitable for a wide range of hydraulic systems, from excavators to industrial equipment.

Premium Construction – Manufactured using high-grade materials to withstand wear, impact, and corrosion.

Precision Engineering – Built to exact specifications for seamless integration and optimal hydraulic performance.

Smooth Operation – Minimizes friction and ensures consistent movement for improved machine efficiency.

Easy Maintenance – Designed with serviceability in mind, reducing downtime and maintenance costs.

Product Process

1. Material Cutting & Preparation
We start with high-strength steel plates. CNC cutting ensures every piece has exact dimensions and consistent strength.
2. Welding and Component Integration
Barrels, end caps, and mounting bases are welded with precision. Automated welding and skilled hands work together for a strong, lasting structure.
3. Heat Hardening Process
Key parts go through controlled quenching and tempering. This boosts hardness and improves wear resistance.
4. Precision CNC Machining
Rods are turned, threaded, and finished on advanced CNC lathes. The result is perfect alignment and smooth operation under pressure.
5. Surface Finishing & Plating
Each rod is polished in several steps, then hard chrome plated. This protects against corrosion and extends service life.
6. Bore Honing
The inside of each barrel is honed to tight tolerances. This ensures smooth piston travel and a perfect hydraulic seal.
7. Final Assembly & Performance Verification
All parts are assembled in a clean workspace. Every cylinder is fully pressure-tested for leaks, stroke accuracy, and performance under load.

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.