Rotary Shaft Seals Extruder

BL-D complies with Meiwei FDA certification. The static ring and movable ring of the shaft seal are made of high-performance modified PTFE material, PEEK1000 and special metal processes. The shaft seal installation base, 0-ring, static ring, movable ring, and end cover can be made into a partial structure, which is easy to maintain and replace. It can also be used for on-site demolishing-free upgrades and replacement of equipment filler seals, skeleton oil seals and mechanical seals.

Rotary shaft seals are essential components in extruder systems, designed to prevent the leakage of materials and ingress of contaminants at the interface between rotating shafts and stationary housings. In extrusion applications—particularly in the plastics, food, and chemical industries—these seals must withstand high pressures, elevated temperatures, and abrasive or corrosive media. Their performance directly affects process efficiency, product quality, and equipment lifespan. Proper seal selection, including the choice of sealing materials and design configuration, is critical to accommodate varying operational demands such as shaft speed, misalignment, and thermal expansion. Common materials include elastomers, PTFE, and advanced composites, selected for their resistance to wear, heat, and chemical attack.

Advanced sealing systems may also incorporate lubrication channels, spring-loaded lips, or barrier fluids to enhance durability. Failures in shaft sealing can lead to significant downtime and contamination risks. This paper explores the functional requirements, design principles, and material technologies of rotary shaft seals used in extruders, highlighting best practices for maximizing seal life and operational reliability. Through improved seal design and material innovation, manufacturers can achieve greater process stability and reduce maintenance costs, ensuring continuous and clean extrusion operations across various industrial sectors.

1.EXPLODED VIEW

2.BL-D SIZE

3.Appllcation Scenarios

4.FAQ

How long does it take to install the sealing product?

30-60 minutes

Can you send your staff to install the equipment for us?

Yes, it will cost you money

How long does it take you to provide the designing options for us?

24 hours after confirming the relevant data

Can I only buy some spare parts from you?

Yes

Will you attend the fair to show your products?

Attend the exhibition

Can you send your equipment to my warehouse in guangzhou?

Yes

What can our company do for you?

1. Solve the pain powder problem: Through high-performance sealing design, powder leakage is significantly reduced and the cleanliness of the production environment is improved.

2. Extend equipment life: Wear resistant materials and optimized structural design reduce equipment wear, reduce downtime and maintenance time, and control the replacement time within 30 minutes.

3. Reduce operating costs: Efficient sealing solutions reduce resource waste, help customers reduce costs and increase efficiency, and save 55% maintenance costs

4. Improve production efficiency: Stable and reliable sealing performance ensures continuous and efficient operation of equipment.

The company's mission: Drive the transformation of the powder industry with technological innovation, provide customers with efficient, reliable and intelligent sealing solutions, help industrial equipment operate efficiently, reduce operating costs, and achieve sustainable development of the industry.

The company's vision: To become the global leader in providing sealing solutions for the powder industry, create lasting value for customers with excellent product technology and services, and promote the development of the powder industry in an intelligent and green direction.