71445817 Hydraulic Seal Kit for Hitachi Excavators
Product Overview
As a leading manufacturer of high-quality hydraulic seal kits, our factory provides the 71445817 Hydraulic Seal Kit, a versatile and essential solution for maintaining the hydraulic systems of Hitachi Excavators. This aftermarket kit is engineered to address the common wear and tear experienced by hydraulic cylinders across various Hitachi models, ensuring optimal performance and extended operational life. We understand the critical role of reliable sealing in heavy equipment. Our 71445817 seal kit is meticulously crafted to prevent costly hydraulic fluid leaks, protect internal cylinder components from abrasive contaminants, and sustain optimal system pressure. This directly translates to maximized operational uptime and reduced maintenance expenses for equipment distributors, repair facilities, and large construction fleets. As a wholesale supplier, we guarantee a product that meets stringent quality standards, offering a dependable and cost-effective alternative for excavator hydraulic system repair.
Technical Specifications
| Specification | Detail |
| Part Number | 71445817 |
| Applicable Equipment | Hitachi Excavators (Various Models) |
| Product Type | Hydraulic Cylinder Seal Kit |
| Application | General Hydraulic Cylinders (e.g., Boom, Arm, Bucket, Lift) |
| Condition | New, High-Quality Aftermarket |
| Material Composition | Durable Nitrile Butadiene Rubber (NBR), Polyurethane (PU), Fluoroelastomer (FKM), and Polytetrafluoroethylene (PTFE) compounds |
Seal Kit Main Components
| Rod Seals | Seals the piston rod, preventing external fluid leakage and ensuring smooth movement. |
| Piston Seals | Creates a dynamic seal between the piston and cylinder bore, maintaining pressure differential. |
| Wiper Seals (Dust Seals) | Cleans the rod surface, preventing dirt and contaminants from entering the cylinder. |
| Wear Rings (Guide Bands) | Guides the piston and rod, preventing metal-to-metal contact and ensuring concentric movement. |
| Buffer Seals | Absorbs pressure spikes and protects the primary rod seal from high-pressure extrusion. |
| O-rings & Backups | Provides static and dynamic sealing for various internal connections and prevents seal extrusion under pressure. |
Core Advantages
•Broad Compatibility: Designed for versatile application across various Hitachi excavator hydraulic cylinders, simplifying inventory.
•Enhanced Reliability: Constructed from premium, industrial-grade materials for superior resistance to wear, pressure, and temperature.
•Optimal Hydraulic Performance: Restores and maintains efficient fluid sealing, crucial for machine power and responsiveness.
•Cost-Effective Maintenance: A high-quality aftermarket solution that extends equipment lifespan and significantly reduces repair frequency.
Frequently Asked Questions (FAQ)
Q: Do you have any other excavator model repair seal kits ?
A: Yes. As the professional excavator seal kits manufacturer, we produce all the excavators repair seal kits, standard sizes and also support customization. Please tell us the part number seal kit you want.
Q: I can’t find the model I want. Are all your seal repair kits here?
A: No. We have more than tens of thousands seal kits. Here only a small part of them is shown. We have stock of all the seal kits for construction machinery. Please contact us!
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