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.