Corrosion Resistance Of ZAX200/230/240 Swivel Joint Rotary Joint Seal Kit

1. Company Profile

Guangzhou Midao Oil Seal was founded in 2007, which is a company specializing in the sale of construction machinery oil seals. Gathering oil seals from world's famous factories, with a standing stock of 1,000 varieties. The main service is construction machinery and engineering machinery.

The founder has been engaged in the oil seal industry more than 20 years. According to the actual situation of the Chinese excavator maintenance market, he has continuously studied, researched, innovated, introduced and developed high-quality oil seal repair kits that meet the real needs of the market. Ensure that customers can buy High-performance anti-leakage effect and long-term oil sealing effect.Based on technology leadership, the company has established a market research, quality assurance and after-sales service system to fully meet customers exact needs and has won excellent results in the industry. The reputation and word of mouth have won the continuous support of domestic and international counterparts and customers. Through long-term first-line services, we know that the promotion and use of high-quality oil seals are inseparable from your support and encouragement. We always adhere to the principle of quality first and benefit sharing to provide high-quality oil seals for the customers.

   2. Product Details

Engineered for extreme environments, this premium Swivel Rotary Joint Seal Kit delivers exceptional corrosion resistance and durability for Hitachi ZAX200, ZAX230, and ZAX240 excavators. Designed to withstand aggressive conditions while maintaining perfect sealing integrity, this kit is the ideal solution for preventing leaks, reducing downtime, and extending the service life of your critical equipment.

Key Features & Technical Details:

· Superior Corrosion Resistance:
  Specifically formulated to perform in corrosive environments, protecting the rotary joint from chemical and moisture-induced degradation.
· Wide Temperature Tolerance:
  Operates reliably in extreme conditions, withstanding temperatures from -20°C to +100°C, ensuring consistent performance in both cold and high-temperature settings.
· High-Pressure Sealing Capability:
  Handles up to 30 MPa maximum working pressure—ideal for demanding hydraulic systems where leak-proof performance is critical.
· Advanced Material Composition:
  Constructed using a high-performance blend of:
  · TPU (Thermoplastic Polyurethane): For outstanding abrasion and tear resistance.
  · NBR (Nitrile Butadiene Rubber): For excellent oil and fuel resistance.
  · PTFE (Polytetrafluoroethylene): For chemical inertness, low friction, and temperature stability.
    This combination ensures long-lasting sealing performance even under harsh conditions.
· Optimized Hardness:
  70-90 Shore A hardness provides ideal balance between sealing flexibility and mechanical strength, resisting deformation under pressure.
· Excellent Quality & Precision:
  Manufactured to exact OEM standards, ensuring perfect fit, easy installation, and reliable operation.
· Standard Sizing:
  Designed as a direct replacement part, guaranteeing compatibility with Hitachi ZAX200, ZAX230, and ZAX240 excavator models.
· Appearance:
  Distinctive black and blue coloring for easy identification and verification.

Applications & Benefits:

· Ideal for use in construction, mining, and industrial applications where exposure to moisture, chemicals, and abrasive materials is common.
· Extends machinery life by protecting the swivel joint from corrosion and wear.
· Reduces maintenance frequency and operational downtime.
· Helps maintain hydraulic system efficiency and prevents fluid loss.

Ordering Information:

· Minimum Order Quantity (MOQ): 10 sets (custom quantities available for negotiation).
· Kit Includes: All necessary seals and components required for a complete rotary joint overhaul.

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    4. Product Display

FAQ

Q1. What is the advantage about your company?

A1. Our company has professional team and professional production line. We have been doing this industry for almost 20 years.

Q2. Why should I choose your products?

A2. Our products are high quality, heat resistant, good elasticity with high cost effective.

Q3. Any other good service your company can provide?

A3. Yes. We can provide good after-sale and fast delivery.