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Durable hydraulic cylinder excavator bucket seal kit SKF 4649053 for ZAX330-3 EX300-5

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Durable hydraulic cylinder excavator bucket seal kit SKF 4649053 for ZAX330-3 EX300-5

MOQ:	1 set
Price:	$19.8-$20 / set
Standard Packaging:	Plastic/cardboard box/ custom-made
Delivery Period:	7~10 Work days
Payment Method:	L/C, T/T, D/P, D/A,Alipay, PayPal
Supply Capacity:	500 sets

Detail Information

Product Description

Ratings & Reviews

Detail Information

Place of Origin

Korea

Brand Name

Certification

ISO 9001、ISO 14001

Model Number

ZAX330-3 EX300-5

Hitachi Hydraulic System

Available:

In Stock

Pressure:

40 MPa

Application:

Excavator Hydraulic Bucket Cylinders Used In Construction And Earthmoving Equipment

Parts No:

4649053

Sealtype:

Rod Seal, Piston Seal, Guide Ring

Installation:

Easy To Install With Standard Tools

Certifiion:

ISO 9001、ISO 14001

Temperature:

-40°C To +100°C

Function:

Prevents Hydraulic Fluid Leakage

Transport Package:

Carton Packing

Material:

PTFE、NBR、AU

Color:

Black, White, Green, Purple

Highlight:

Bucket Cylinder Seal Kit 4649053

Bucket Cylinder Seal Kit EX300-5

seal kit bucket EX300-5

Product Description

Durable hydraulic cylinder excavator bucket seal kit SKF 4649053 for ZAX330-3 EX300-5

**4649053 Bucket Cylinder Sealing Kit - Key Component**
Typical components	Core Functions
Dustproof seal (dust ring)	The first line of defense involves forcefully scraping away the dirt and impurities adhering to the piston rod surface.
Main piston rod seal	The key sealing component achieves dynamic sealing of the piston rod under high pressure, preventing oil leakage.
Buffer seal (backup seal)	It is resistant to high-pressure impact and protects the main seal from being squeezed out at pressure peaks.
Piston seal (main pressure seal)	The two chambers of the hydraulic cylinder are isolated to bear the main working pressure and realize the reciprocating drive of the hydraulic cylinder.
Guide ring/support ring	It bears lateral forces, prevents the piston from coming into metal contact with the cylinder, and ensures alignment and smooth movement.
O-rings/washers	The static auxiliary seal supports the main sealing lip, ensuring its immediate sealing response.

Durable hydraulic cylinder excavator bucket seal kit SKF 4649053 for ZAX330-3 EX300-5 0

Core Principles and Functions

►Hydraulic bucket cylinders operate in extremely harsh environments: high pressure, high-frequency impact, large lateral forces, and high dust levels.

►A single seal is insufficient to handle these conditions; therefore, SKF employs a "system solution," utilizing a carefully matched set of sealing components working in tandem.

Durable hydraulic cylinder excavator bucket seal kit SKF 4649053 for ZAX330-3 EX300-5 2

♦ Key Advantages and Value of SKF Genuine Parts ♦

Compared to ordinary seals or generic kits, they offer significant advantages

►Extremely High Reliability: Specifically designed and tested for extreme conditions, with precise material matching, they can withstand high pressure and temperature variations, significantly reducing failures.

►Significantly Extended Lifespan: Low-friction, high-wear-resistant materials (Turcon) reduce seal wear, extending service life.

►Superior Sealing Performance: Maintains a stable seal even under pressure and temperature fluctuations, reducing hydraulic oil leakage, keeping equipment clean, and saving expensive hydraulic oil.

►Optimized Equipment Performance: Precise guidance and low-friction design result in smoother cylinder operation and faster response, contributing to improved overall machine efficiency and smoothness.

►High Maintenance Cost-Effectiveness: While the initial purchase cost may be higher, the longer service life, less downtime, and avoidance of damage to other expensive components result in a lower Total Cost of Maintenance (TCO).

Durable hydraulic cylinder excavator bucket seal kit SKF 4649053 for ZAX330-3 EX300-5 4

Connecting global vision, building an excellent future. We remain active at the forefront of industries both domestically and internationally.

From 2023 to 2025, we have participated in the Russian CTT International Construction Machinery Technology Exhibition,
the Shanghai bauma Construction Machinery Exhibition, and are about to appear at the Indonesia Energy and Engineering Series Exhibitions.

Every appearance is a firm commitment to technological innovation and industry development.
We look forward to meeting you and jointly creating a new chapter of cooperation, building a solid future together.

►HOT PRODUCTS

Visit the webpage for more details.

Ratings & Review

Overall Rating

5.0

Based on 50 reviews for this supplier

Rating Snapshot

The following is the distribution of all ratings

5 stars

100%

4 stars

3 stars

2 stars

1 stars

All Reviews

w*m

Canada Jan 5.2026

trustpilot.com

Helpful (3)

"When I told them I got a lower quote elsewhere, they gave me a transparent full price that matched the product's value. The motor is currently running very well."

a*d

Bangladesh Jan 1.2026

trustpilot.com

Helpful (1)

Extremely satisfied with this purchase! The sealing ring fits perfectly and works smoothly. Packaging was quick and secure. I will definitely buy again.

Tags:

Products

MOQ:	1 set
Price:	$19.8-$20 / set
Standard Packaging:	Plastic/cardboard box/ custom-made
Delivery Period:	7~10 Work days
Payment Method:	L/C, T/T, D/P, D/A,Alipay, PayPal
Supply Capacity:	500 sets

Detail Information

Product Description

Detail Information

Place of Origin

Korea

Brand Name

SKF

Certification

ISO 9001、ISO 14001

Model Number

ZAX330-3 EX300-5

For:

Hitachi Hydraulic System

Available:

In Stock

Pressure:

40 MPa

Application:

Excavator Hydraulic Bucket Cylinders Used In Construction And Earthmoving Equipment

Parts No:

4649053

Sealtype:

Rod Seal, Piston Seal, Guide Ring

Installation:

Easy To Install With Standard Tools

Certifiion:

ISO 9001、ISO 14001

Temperature:

-40°C To +100°C

Function:

Prevents Hydraulic Fluid Leakage

Transport Package:

Carton Packing

Material:

PTFE、NBR、AU

Color:

Black, White, Green, Purple

Minimum Order Quantity:

1 set

Price:

$19.8-$20 / set

Packaging Details:

Plastic/cardboard box/ custom-made

Delivery Time:

7~10 Work days

Payment Terms:

L/C, T/T, D/P, D/A,Alipay, PayPal

Supply Ability:

500 sets

Highlight

Bucket Cylinder Seal Kit 4649053

Bucket Cylinder Seal Kit EX300-5

seal kit bucket EX300-5

Product Description

Durable hydraulic cylinder excavator bucket seal kit SKF 4649053 for ZAX330-3 EX300-5

**4649053 Bucket Cylinder Sealing Kit - Key Component**
Typical components	Core Functions
Dustproof seal (dust ring)	The first line of defense involves forcefully scraping away the dirt and impurities adhering to the piston rod surface.
Main piston rod seal	The key sealing component achieves dynamic sealing of the piston rod under high pressure, preventing oil leakage.
Buffer seal (backup seal)	It is resistant to high-pressure impact and protects the main seal from being squeezed out at pressure peaks.
Piston seal (main pressure seal)	The two chambers of the hydraulic cylinder are isolated to bear the main working pressure and realize the reciprocating drive of the hydraulic cylinder.
Guide ring/support ring	It bears lateral forces, prevents the piston from coming into metal contact with the cylinder, and ensures alignment and smooth movement.
O-rings/washers	The static auxiliary seal supports the main sealing lip, ensuring its immediate sealing response.

Durable hydraulic cylinder excavator bucket seal kit SKF 4649053 for ZAX330-3 EX300-5 0

Core Principles and Functions

♦ Key Advantages and Value of SKF Genuine Parts ♦

►HOT PRODUCTS

Visit the webpage for more details.

Tags:

Excavator Cylinder Seal Kits

Breaker Seal Kit

Center Joint Seal Kit

Control Valve Seal Kit

Hydraulic Pump Seal Kit

Swing Motor Seal Kit

Travel Motor Seal Kit

Gear Pump Seal Kit

Hydraulic Oil Seal

Durable hydraulic cylinder excavator bucket seal kit SKF 4649053 for ZAX330-3 EX300-5

Bucket Cylinder Seal Kit 4649053

Bucket Cylinder Seal Kit EX300-5

seal kit bucket EX300-5

Overall Rating

Rating Snapshot

All Reviews

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Excavator Cylinder Seal Kits

Breaker Seal Kit

Center Joint Seal Kit

Control Valve Seal Kit

Hydraulic Pump Seal Kit

Swing Motor Seal Kit

Travel Motor Seal Kit

Gear Pump Seal Kit

Hydraulic Oil Seal

Bucket Cylinder Seal Kit 4649053

Bucket Cylinder Seal Kit EX300-5

seal kit bucket EX300-5

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