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Welcome to Sizonke Trading, an Industrial Engineering group that has been a trusted name in Southern African market since our inception in 1994. Driven by our commitment to innovation, client satisfaction and reliability, we are the trusted engineering specialists in industries such as Petrochemical, Pulp & Paper, Mining and Power Generation . From sealing solutions to specialized lubrication, we offer a range of products that cater to every need, budget, and concern. 

Large size O-rings custom made to size

Large O-rings are a type of seal that is used in a variety of applications where a large, flexible seal is needed. They are typically made from rubber or silicone and are available in a wide range of sizes and materials.

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Sizonke trading supplies O-rings from very small all the way up to 3 meters/3000 millimetres in diameter.

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Large O-rings are used in a variety of industries, including:
  • Aerospace

  • Automotive

  • Chemical

  • Construction

  • Food processing

  • Oil and gas

  • Pharmaceutical

  • Power generation

  • Water treatment

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Large O-rings are available in a variety of sizes, materials, and durometers. The size of an O-ring is determined by its outside diameter (OD), inside diameter (ID), and cross-section. The material of an O-ring is determined by the application in which it will be used. The durometer of an O-ring is a measure of its hardness.

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Large O-rings are a critical component in many applications. They are used to prevent leaks and ensure the safety of people and equipment.

Here are some of the advantages of using large O-rings:

  • They are available in a wide range of sizes and materials.

  • They are easy to install.

  • They are durable and can withstand a variety of harsh environments.

  • They are cost-effective.

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O-ring Cord in stock 

Standard sizes O-ring cord Sizonke trading keep in stock 

2.0mm O-ring cord 

2.4mm (3/32 inch) O-ring cord 

3.0mm O-ring cord 

3.53mm (0.139 inch) O-ring cord 

4.0mm (5/32 inch) O-ring cord 

4.5mm O-ring cord 

4.76mm (3/16 inch) O-ring cord 

5.0mm O-ring cord 

5.33mm (0.210 inch) O-ring cord 

5.7mm O-ring cord 

6.0mm O-ring cord 

6.35mm (1/4inch) O-ring cord 

6.99mm (0.275 inch) O-ring cord 

8.0mm (5/16 inch) O-ring cord 

9.5mm (3/8inch) O-ring cord 

10mm O-ring cord 

12.7mm (1/2 inch).

O-Ring
Orings

Available in all manufactured X-Sections from 0.070" / 1.178mm to 0.275" / 7mm with over 20 000 sizes

FEP/PFA

Encapsulated O-Rings

OUR MISSION IS TO INCREASE PRODUCTIVITY AND RELIABILITY THROUGH EXCEPTIONAL SERVICE AND EXPERTISE, AS WELL

AS BECOME WORLD PRODUCT LEADERS.

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