Excavator High Quality Repair Kit 349E Hydraulic Cylinder Seal Kit

Product Description:

The EX300-1 / 300-2 / 300-3 hydraulic cylinder sealing kit is used to seal up the gap between different parts of the hydraulic cylinder. They can be used under high pressure and also can be used between the head and the connecting rod when the rod and cylinder seal are reciproing. We usually call them as BOOM / ARM / BUCKET cylinder seal kit.

Premium repair kit specifically designed for 349E Excavator Hydraulic Cylinder maintenance. This comprehensive seal kit ensures optimal performance and longevity for boom, arm, and bucket cylinders. Manufactured to meet international quality standards, this kit provides reliable sealing solutions for demanding construction environments.

Key Features & Benefits:

· Superior Heat Resistance: Withstands temperatures from -30°C to +120°C, ensuring consistent performance in extreme working conditions
· Excellent Elasticity: Maintains perfect seal integrity under varying pressure conditions
· Enhanced Sealing Performance: Precision-engineered components prevent leakage and fluid contamination
· Exceptional Oil Resistance: Compatible with various hydraulic fluids and lubricants
· High Efficiency Design: Reduces downtime and maintenance costs
· Durable Material Composition: Engineered for extended service life and reliability

Specifications:

Parameter Description
Application 349E Excavator Hydraulic Cylinder Repair
Seal Type Complete Set for BOOM/ARM/BUCKET Cylinder
Temperature Range -30°C to +120°C
Place of Origin CHINA / JAPAN / USA (Global Quality Standards)
Lead Time 7-15 Days After Payment Confirmation

Package Contents:
The kit includes all essential sealing components:

· Piston U-Seal
· Piston Buffer Ring
· Piston Seal
· Wear Ring
· Dust Ring
· O-Ring
· Backup Ring
· U-Seal Backup

Material Composition:

· TPU (Thermoplastic Polyurethane): Excellent abrasion resistance and flexibility
· NY (Nylon): High mechanical strength and durability
· NBR (Nitrile Rubber): Superior oil and fuel resistance
· PTFE (Polytetrafluoroethylene): Low friction and chemical resistance
· NY (Nylon): Dimensionally stable and wear-resistant

Packaging:

· Outer: Sturdy carton box for maximum protection during transportation
· Inner: PP (Polypropylene) bags for moisture resistance and component organization

Applications:
Ideal for:

· 349E Excavator maintenance and overhaul
· Hydraulic cylinder repair and prevention
· Construction equipment maintenance
· Industrial machinery servicing

Quality Assurance:

· Manufactured to OEM specifications
· 100% performance tested
· Compatible with original equipment
· Long-lasting reliability guaranteed

Why Choose Our Seal Kit?
Our 349E Excavator Hydraulic Cylinder Seal Kit combines premium materials with precision engineering to deliver unmatched performance and reliability. Each component is meticulously crafted to ensure perfect fitment and optimal sealing performance, helping extend the service life of your hydraulic systems while reducing maintenance frequency.

Contact Us Today for competitive pricing, bulk order discounts, and expedited shipping options. Our technical team is available to provide expert support and guidance.

Excavator Hydraulic Seal Kit Element Components

Comoany Profile

Guangzhou Midao (Mido) Oil Seal is a leading supplier specializing in high-performance oil seals and sealing solutions. Renowned for their durability and reliability, Midao's products are widely used in various machinery, from construction equipment (e.g., excavators) to industrial applications. The company serves a global clientele, providing critical components to the machinery industry worldwide.

The history of exhibition

2001 Beijing BICIS

2004 Shanghai Bauma

2005 Beijing BICIS

2006 Shanghai Bauma

2007 Beijing BICIS

2009 Beijing BICIS

2011 Beijing BICIS

2013 Beijing BICIS

2024 Moscow CTT

2024 Shanghai Bauma

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FAQ

Q1. Why should I choose your products? 

While operating our own manufacturing facility, we also distribute oil seals from renowned international brands. We are committed to providing one-stop solutions to meet all our customers' diverse needs. Excavator/ Loader/ Motor Grader Seal kits and Spare Parts.

Q2. What series of products does your company have?

Excavator/ Loader/ Motor Grader Seal kits and Spare Parts.

Q3. Any other good service your company can provide? 

Yes. Conduct regular follow-up visits, and there are dedicated staff available online 24 hours a day

In the era of digital office, our company is committed to providing customers with comprehensive and efficient service experiences. The "Online Specialist Response" is a key component of this commitment.