349D  Hydraulic Cylinder Seal Kit High Efficiency PTFE TPU NBR

Product Description

The 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.

Technical Specifications

· Application: Hydraulic cylinders for 349D excavators
· Seal Type: Complete sealing set for cylinder overhaul
· Place of Origin: China
· Temperature Range: -30°C to +120°C

Included Seal Elements

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

Material Composition

· TPU (Thermoplastic Polyurethane): Provides excellent abrasion resistance and durability
· Nylon (NY): Offers high mechanical strength and stability
· NBR (Nitrile Rubber): Delivers superior oil and fuel resistance
· PTFE (Polytetrafluoroethylene): Ensures low friction and high temperature performance

Key Features

·  High Efficiency: Optimized for minimal friction and energy loss
·  Heat Resistance: Reliable performance in high-temperature environments
·  Excellent Sealing Performance: Effective leak prevention under high pressure
·  Oil Resistance: Compatible with various hydraulic fluids and oils
·  Multi-Material Design: Combines the best properties of different materials for optimal performance
·  Wide Temperature Adaptability: Suitable for use in extreme climatic conditions

Packaging

· Inner packaging: PP bag for moisture and contamination protection
· Outer packaging: Sturdy carton box for secure storage and transportation

Lead Time

7–15 days after payment confirmation

Hydraulic Excavator Seal Kit Parts:

Hydraulic Cylinder seal kit , Hydraulic Main Pump seal kit , Control Valve Seal Kit , Center Joint Seal Kit , Adjust Seal Kit , Final Drive Travel Motor Seal Kit , Swing Motor Seal Kit , Diesel Engine Parts and related parts,

Hydraulic Excavator Parts:

Centaflex Rubber Coupling , Seal Group , Rubber Oil Seal , Rubber Oring Kit / Box , Hydraulic Cylinder U seal , Hydraulic Cylinder Piston seal , Hydraulic Cylinder Buffer Ring , Hydraulic Cylinder Dust seal , Hydraulic Cylinder Wear Ring.

Related Excavator Number:

307, 312, 312B 312C , 312D, 312V2, 320B, 320C, 320V2, 330, 330B, 330C, 330D, 336D, 345, 345C, 345D, 349D, 349E

Company 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.