345 Hydraulic Cylinder Seal Kit Oil Resistant  Cylinder Seal Kits

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.

This premium hydraulic cylinder seal kit is specifically engineered for 345 series excavators, delivering exceptional durability and performance for boom, arm, and bucket cylinder systems. Manufactured with advanced materials including TPU, NBR, Nylon, and PTFE, this comprehensive set ensures reliable sealing performance, extended service life, and optimal operation under the most demanding working conditions.

Technical Specifications

Application 345 Excavator Boom/Arm/Bucket Hydraulic Cylinders
Origin Manufactured in China to International Standards
Temperature Range -30°C to +120°C
Lead Time 7-15 days after payment confirmation
Seal Type Complete Cylinder Seal Set

Kit Contents

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

Material Composition

· TPU (Thermoplastic Polyurethane): Superior abrasion resistance and durability
· NY (Nylon): High mechanical strength and stability
· NBR (Nitrile Rubber): Excellent oil and fuel resistance
· PTFE (Polytetrafluoroethylene): Outstanding chemical resistance and low friction

Key Features

Premium Material Quality

· Manufactured to international standards ensuring durability and reliability

 Extreme Environment Performance

· Wide temperature tolerance (-30°C to +120°C)
· Maintains integrity in varying operational conditions

 Optimized Design

· 70°-90° Shore A hardness for perfect balance of flexibility and durability
· Precision engineering for exact SK200-6E compatibility

 Global Manufacturing Excellence

· Combines best practices from China, Japan, and Italy manufacturing

Performance Advantages

· Restores original equipment performance standards
· Eliminates fluid leakage and prevents system contamination
· Ensures precise hydraulic control operation
· Significantly reduces maintenance downtime and costs
· Compatible with all standard hydraulic fluids

Packaging & Logistics

· Flexible Packaging Options: Multiple configurations available
· Immediate Availability: 5,800 sets in stock
· Global Shipping: Air, Sea, and Express delivery options
· Worldwide Delivery: Efficient logistics network

Quality Certification

· Meets or exceeds OEM specifications
· Precision dimensional accuracy guaranteed
· Consistent material properties across all components
· Rigorous quality control testing protocol
· Proven performance in demanding applications

Recommended Applications

· KOBELCO SK200-6E hydraulic system maintenance
· Hydraulic pump and control valve repair
· Preventive maintenance programs
· Construction equipment overhaul
· Mining and excavation equipment maintenance

Why Choose This Seal Kit?

This professional-grade seal kit represents the perfect combination of global manufacturing expertise and precision engineering. With immediate availability and worldwide shipping capabilities, it offers maintenance professionals and equipment owners a reliable, high-performance solution for maintaining KOBELCO hydraulic systems at optimal performance levels. The comprehensive component coverage and quality assurance make it an exceptional value for professional repair operations.

Related Excavator Number:

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

Other Excavator Spare Parts:

Seal Kit:

BOOM CYL SEAL KIT , ARM CYL SEAL KIT,  BUCKET CYL SEAL KIT,  CONTROL VALVE SEAL KIT,  HYDRAULIC PUMP SEAL KIT,  CENTER JIONT SEALKIT,  

PIOLVE VALVE SEAL KIT,  SWING MOTOR SEAL KIT,  FINAL DRIVE TRAVEL MOTOR SEAL KIT,  CHAIN ADJUST CYL SEAL KIT,  GEAR PUMP SEAL KIT

Rubber Oil Seal:

TYPE: TC, TB, TA, TCV, TCN, TCZ, SC, SB, SA, DB, DC, VC, VB, KC, KB, TC4, TB4, TG4

BRAND: NOK, NDK, NAK, SOG, CFW

ITALY-TECNOLAN TECNOTEX TECNOLEO

Centaflex Coupling:   25H, 30H, 35H, 40H, 45H, 50H, 90H, 110H, 140H, 160H, 240H,  4A, 4AS, 8A, 8AS, 16A, 16AS, 22A, 22AS,

                                     25A, 25AS, 28A, 28AS, 30A, 30AS, 50A,50AC, 50AS, 80A, 80AS, 90A, 90AS, 140A, 140AS

U Seal:  NOK KYB SKF WYS UN UPI UPH USH USI

Dust Wiper:  DKB DKBI DKBZ DKI DWI DKH DWIR DSI LBI LBH VAY ME-2 ME-8

Buffer Seal:  NOK KYB SKF WYS

Piston Seal:  SPGW SPGO SPGT SPGA SPG TPM OHM KDAS

Wearing Ring:  WR KZT RYT

Oring:    Oring Kit For excavators of Various Brands

               Width: 1.9mm 2.4mm 3.5mm 5.7mm 8.4mm 3.1mm 1.78mm 2.62mm 3.53mm 5.33mm 6.99mm 2.0mm 3.0mm 3.5mm

Floating Seal Group

Excavator Pilot Valve Pusher

Company Profile

Guangzhou Midao (Mido) Oil Seal: Your Trusted Partner for Sealing Solutions.

·Expertise: Specializes in manufacturing high-quality oil seals and sealing products.

·Quality & Durability: Products are known for their exceptional reliability in demanding applications, such as construction and excavator machinery.

·Global Reach: A key supplier to the machinery industry, catering to both the Chinese market and international customers.

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

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.