Products

DTII Roller Seal
DTII Roller Seal
DTII Roller Seal
DTII Roller Seal
DTII Roller Seal
DTII Roller Seal
DTII Roller Seal
DTII Roller Seal
DTII Roller Seal
DTII Roller Seal

DTII Roller Seal

The labyrinth seal of the DTII roller is a non-contact seal structure that prevents dust, moisture and other pollutants from entering the bearing chamber through a complex channel design. It is widely used in belt conveyor systems. The labyrinth seal forms a tortuous channel (i.e., a "maze") by setting staggered annular grooves between the roller end cover and the shaft. When pollutants try to enter, they are required to go through multiple turns and throttling. The kinetic energy is dissipated in the vortex and eventually deposited in the channel, unable to enter the bearing chamber. This design avoids the wear problem of contact seals and is suitable for harsh working conditions.
High Durability And High Efficiency
Precision Machining And Customization
Comprehensive Technical Support
Comprehensive After-Sales Guarantee

The labyrinth seal of the DTII roller is a non-contact seal structure that prevents dust, moisture, and other pollutants from entering the bearing chamber through a complex channel design. It is widely used in belt conveyor systems. The labyrinth seal forms a tortuous channel (i.e., a “maze”) by setting staggered annular grooves between the roller end cover and the shaft. When pollutants try to enter, they are required to go through multiple turns and throttling. The kinetic energy is dissipated in the vortex and eventually deposited in the channel, unable to enter the bearing chamber. This design avoids the wear problem of contact seals and is suitable for harsh working conditions.

Product Parameters:

project Scope of application illustrate
Roller diameter Φ89~Φ159mm Common specifications: Φ89 (light load), Φ108 (medium load), Φ133/159 (heavy load)
Roller length 380~1600 mm Bandwidth 500~1400 mm corresponds to roller length 455~1600 mm.
Bearing model 4G204/205, 4G305/306 Single-row tapered roller bearing, load capacity 15~30 kN
Speed ≤600 r/min The sealing effect is best when the line speed is ≤4.5 m/s.
Protection level IP65 (triple maze) Can withstand 100 kPa water pressure spray test
Axial clearance 0.3~0.5 mm Prevent thermal expansion and locking during high-speed rotation, while ensuring that the maze channel length is ≥8 mm.
Tooth depth 2~3 mm When the depth-to-clearance ratio is greater than 4, the throttling efficiency is maximized.
Tooth tip thickness 0.8~1.2 mm The flow coefficient of the pointed tooth structure (thickness ≤ 1 mm) is 0.7, which is better than the 0.9 of the round tooth.
Maze series Level 2-4 Level 3 is recommended for dusty environments, and level 4 is required for environments with humidity > 85%.
My transportation Φ133 mm roller diameter + triple labyrinth seal Adapt to the impact conditions of ore particle size ≤300mm and drop height >5 m.
Chemical Industry Stainless steel roller body + fluoroplastic sealing ring Acid and alkali corrosion resistance (pH 2~12)

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Technical Support
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R&D Strength

We have a highly skilled R&D team dedicated to developing new products and optimizing existing products to ensure that our products meet the latest market demands.

Quality Assurance

All products undergo strict quality inspections before leaving the factory to ensure that each product meets international standards.

Manufacturing Process

We use advanced production equipment and processes to improve production efficiency and ensure product stability and durability.
High Durability And High Efficiency
All products are made of high-strength, wear-resistant materials and undergo rigorous testing to ensure long-term stable operation under high load and complex environments.
Precision Machining And Customization
Our products are manufactured using advanced technology to ensure that each product is precise and accurate. We also provide customized services to tailor solutions to your needs.
Comprehensive Technical Support
Whether it's product consultation or technical questions, our technical team always provides you with professional support and services to ensure that your equipment runs smoothly.
Comprehensive After-Sales Guarantee
We provide comprehensive after-sales service and respond to your needs in a timely manner. We provide fast repairs, replacements and technical support to every customer.

FAQ

The following are some frequently asked questions that we have compiled to help you better understand our products and services. If you have any other questions, please feel free to contact us.

Yes, it is ok. Our Samples are free for the customers. But the freight for express is on buyer's account.

After you pay the freight charge and send us confirmed files, the samples will be ready for delivery in 3-7 days. The samples will be sent to you via express and arrive in 3~5 days.

Yes, it is ok. But the quantity of each ordered item should reach the MOQ for trail order.

A. For inventory products, we will send goods to you within 7-10 work days after we receive the deposit.

B. For mass production, the delivery time is 25-28 days after we received the deposit

C.For OEM products, the delivery time is 30-35 work days after we receive the deposit.

T/T 30% advanced before production,70% balance payment before delivery.

We will help you to choose the best shipping way according to your detail requirements.

By sea, by air, or by express delivery, etc.

After you pay the freight charge and send us confirmed files, the samples will be ready for delivery in 3-7 days. The samples will be sent to you via express and arrive in 5~7 days.

Normally packed with wooden drums and cartons, other ways can be done according you.

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If you have any product inquiries, quotation requests or cooperation intentions, please feel free to contact us and we will provide you with fast and professional support.
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