Guangzhou Opal Machinery Parts Operation Department

Seal Kits For Caterpillar Excavator CTC-1915619 CTC-2316844 Boom Arm Cylinder Mechanical Engineering CTC-2426840

Product Details:
Place of Origin: China
Brand Name: NOK
Certification: ISO9001
Model Number: Caterpillar
Payment & Shipping Terms:
Minimum Order Quantity: 10 Set/Accept trial order
Price: Negotiable
Packaging Details: PP Bag Inside,Carton Box Outside
Delivery Time: Within 5-15 days after getting your desposit
Payment Terms: L/C, D/A, D/P, T/T, Western Union, MoneyGram
Supply Ability: 1000Set
  • Detail Information
  • Product Description

Detail Information

Name: Excavator Hydraulic Seal Kit Place Of Origin: China
Temperature: -30~+120°C Application: Boom/Arm/Bucket Seal Kit
Color: Black, Beige,white Ect. Material: Rubber,PU ,NBR

Product Description

Guangzhou OUB Machinery Equipment Co.,Ltd since its inception in 2004, has been engaged in hydraulic seals business of excavators, loaders, bulldozers,breaking hammers and other seals have in-depth study. Through more than 15 years of efforts, OUB has accumulated a large number of domestic, imported excavators and broken hammer seal data, and for new products and new models of seals data constantly updated, finishing and perfect.


Name:Caterpillar seal kit




Feature:High Efficiency, Long Life

Package:PP bag,Carton Packing


Type:Seal Kits


Delivery:by Air,by Express


Part No.

CTC-1709941 CTC-2316844 CTC-2316844
CTC-1915619 CTC-2304001 CTC-2254625
CTC-2426840 CTC-2159988 CTC-2344442
CTC-2316844 CTC-2316844 CTC-2254646
CTC-1680758 CTC-2426840 CTC-2254625


The correct method of installing the hydraulic sealing ring is as follows:

1. Check the relevant surfaces of the piston, cylinder and installation guide sleeve to ensure that they are fully clean, burr-free and edgeless.

2. The installation tools shall be smooth, edgeless and sharp to ensure that the seals will not be damaged in any form during the installation process.

3. A small amount of grease can be put on the relevant surface of the seals and cylinder to facilitate installation, but the residual grease is not allowed between the rubber elastomer and the sliding seal ring, otherwise it will affect the sealing performance.

4. Whether vertical or horizontal installation should maintain the coaxiality of the piston and cylinder, too much eccentricity is likely to damage the seal.

5. The installation speed should not be too fast, otherwise it will damage the seal.


Main cause of leakage

Selection of seals

1. The pressure is too high and the seal is too hard to be extruded into the metal groove.

2. the sealing material and the medium are dissolved, and the seals are softened or dissolved.

3. seals used in the condition of high temperature, sealing material is carbonized.

4. low temperature leads to sealing material hardening, shrinkage and leakage.

5. Using too high linear speed leads to heating, dry grinding, carbonization and leakage of seals.

6. Poor lubrication in service condition leads to wear and leakage of seals.

7. The cavity used is subjected to vibration and causes leakage.

8. Leakage is caused by wear of seals caused by dust.



Q1: Do you have a minimum order requirement?

A: Small trial order is acceptable.

Q2: How soon i can get the quotation?

A: If your information is complete, we offer our quotation within 24 hours.

Q3: Can you provide samples? Is it free or extra?

A: Yes, we can supply the sample for free. Freight charges can be negotiated.

Q4: Are you trading company or manufacturer?
A:We are trading company and we also have our own factory to produce seals.With more than 20 years of PU manufacturing experience.

Q5:If I only know the excavator model, but can not offer parts No., what should I do ?

A: If possible, you can send us pictures of old products, nameplate or the size for reference.

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