Insulation Sleeve

Certified High-Temperature & Electrical Insulation Sleeves for Transformers, Switchgears, and Industrial Wiring—Custom Sizes & Reliable Stock from ISO-Certified Chinese Manufacturer

 

About Weshare

Weshare, established in 2005, boasts over 20 years of professional expertise in the research, development of high polymer materials.Offer sales and service of insulation, sealing, waterproofing, heat conduction and fireproofing protection solutions. Our products include hot shrink tubes, fiberglass sleeves, silicone rubber overhead line covers, thermal conductive products, carbon fiber, etc. Innovating Materials and Applications for a Safer World is our mission

12%

Profit into R&D

R&D

was established in 2008

5

Senior researchers

500m2

R&D laboratory and testing center

 

Weshare Insulation Sleeve R&D mechine

 

 

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Fluorescence analyzer

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coordinate measuring instrument

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Rallying machine

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Insertion force tester

 

 

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High Voltage Laboratory for sleeving
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High Voltage Laboratory for sleeving

 

Weshare Insulation Sleeve Factory

 

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Weshare Insulation Sleeve Solutions

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Electronics Manufacturing

Weshare is committed to developing automotive industry products,such as heat shrink tube,wire harness and electric vehicle products.Used in coil and connector of high-temperature operation products to protect automotive oil system pipes and brake system pipes,used in wrapping of wiring harness and daily necessities.

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Power Transmission

Weshare is committed to developing automotive industry products,such as heat shrink tube,wire harness and electric vehicle products.Used in coil and connector of high-temperature operation products to protect automotive oil system pipes and brake system pipes,used in wrapping of wiring harness and daily necessities.

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Automotive production

Weshare is committed to developing automotive industry products,such as heat shrink tube,wire harness and electric vehicle products.Used in coil and connector of high-temperature operation products to protect automotive oil system pipes and brake system pipes,used in wrapping of wiring harness and daily necessities.

productcate-497-434

Rail Transportation

Weshare is committed to developing automotive industry products,such as heat shrink tube,wire harness and electric vehicle products.Used in coil and connector of high-temperature operation products to protect automotive oil system pipes and brake system pipes,used in wrapping of wiring harness and daily necessities.

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Communication

Weshare is committed to developing automotive industry products,such as heat shrink tube,wire harness and electric vehicle products.Used in coil and connector of high-temperature operation products to protect automotive oil system pipes and brake system pipes,used in wrapping of wiring harness and daily necessities.

productcate-497-434

New Energy Power Generation

Weshare is committed to developing automotive industry products,such as heat shrink tube,wire harness and electric vehicle products.Used in coil and connector of high-temperature operation products to protect automotive oil system pipes and brake system pipes,used in wrapping of wiring harness and daily necessities.

 

Insulation Sleeve product

 

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Fiberglass Sleeving

1.Operating temperature:-40°C~200°C

2.Environmental standard: RoHS,REACH

3.Color :Nature, White, Black, Red, Yellow,Blue, Green, Orange, other colors areavailable

4. Flame retardant rating: HB

5.Rated voltage:1.5KV,2.5KV,4.0KV,7.0KV

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PVC Tube

1.105℃ UL PVC material

2.Operating temperature:-5℃~105℃

3.Cold resistance of working temperature-30℃~105℃

4.Rated voltage300V,600V

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Heat Shrink Tube

1.4:1 shrink ratio

2. Superior sealing against water, moisture or other contaminants

3. Ideal for connector sealing covering large diameter differences

4. Inner adhesive bonds to plastics, steel and polyethylene

5. Continuous operating temperature:-45℃-125℃

6.Fully shrink temperature:≥125℃

 

Insulation Sleeve FAQ

 

 

Q: Can you make our design for the package?

A: Yes, please send us the design you need ,we will value the price and make the exact same package basing on your design

Q: What's the universal lead-time for order delivery?

A: 20-30days or basing on your gty.

Q: What can you get from us?

A: Excellant products funlque daslgn, advance printing machine,strict quallty control ) factory direct sale (favorable and oompatitiveprice) Great service(OEM,.0DM, afler-sales services, fast delivery) Professional business consultalion.

Q: Do you deal with urgent orders?

A: Sure, Please contact ASAp for delails.

Q: l bought from you once. Can l have a special offer this time?

A: Contact for detalls. we do walue our customars, we can and will ofler you good price.

 

 

What is an insulating sleeve?

 

Weshare Insulating sleeve is a kind of insulating material. It is a general term. Electrical insulation casings include fiberglass casings, (yellow wax tubes, self-extinguishing tubes, silicone rubber insulating casings, etc.), heat shrink tubes, PVC casings, etc.

The function of insulating sleeve:

1. Eliminate short circuit faults caused by mice, snakes and other small animals

2. Prevent the corrosion of busbars by chemicals such as acids, alkalis, and salts.

3. Prevent maintenance personnel from accidentally entering the live gap and causing accidental injuries.

4. Adapt to the development trend of miniaturization of switch cabinets

5. Solve the problem of phase insulation of busbar slots

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What is heat shrink tubing?

 

Heat shrink tubing, also known as heat shrink protective tubing, provides insulation protection for wires, cables and wire terminals. It has high temperature shrinkage, soft flame retardancy, insulation and corrosion protection, etc., and is widely used for insulation protection of various wire harnesses, solder joints, inductors, and rust and corrosion prevention of metal tubes and rods.

Heat shrinkable tube has flame retardant, insulating and temperature resistance properties. Heat shrinkable tube is a special polyolefin heat shrinkable tube, also called EVA material.

 

It is soft and elastic. It will shrink when heated (125 degrees), and is widely used in the insulation protection of various wire harnesses, solder joints, and inductors, as well as the rust and corrosion prevention of metal pipes and rods.

It is often used on wire joints. Choose a suitable heat shrink tube, put it on the wire joint, heat it with a hot air gun, the heat shrink tube will shrink, and the joint will be secure.

The function of heat shrinkable sleeves: generally used for packaging insulation in electronics, electrical appliances, batteries, etc.

By using a hot air blower, it can be compressed and perform functions such as insulation and protection.

Heat shrink sleeve heating method. Use a hair dryer, hot air blower, or heat shrink machine.

 

What is silicone fiberglass sleeve?

 

Silicone:

Silicone is a high-temperature stable, soft and durable synthetic rubber favored for its excellent resistance to heat and chemicals. Silicone has excellent elasticity and resilience and can adapt to many shapes of pipes and equipment. At the same time, silicone has good insulation properties and can effectively block current and heat conduction, protecting equipment from high temperatures and other external environmental influences.

Fiberglass:

Fiberglass is a composite material composed of fine glass fibers that is widely used in engineering and construction due to its high strength and high temperature resistance. The addition of glass fiber enhances the tensile strength and wear resistance of the silicone sleeve, allowing it to withstand greater physical pressure and mechanical stress.

The combination of these two materials makes silicone fiberglass sleeve an ideal high temperature protection and insulation material. Not only can it resist thermal radiation and heat conduction in high-temperature environments, but it can also protect equipment and pipelines under harsh conditions and extend their service life.

 

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Efficiency leap Precision and stability

 

The most important thing when selecting heat shrink tubing is to choose a diameter that is smaller than the smallest wire, connector, or component you are insulating.

For example, if you wish to shrink a wire with an outer diameter of 3 mm, you will need to use heat shrink tubing that shrinks to a diameter of less than 3 mm.

For this you can use 5 mm diameter tubing with a shrink ratio of 2:1 (shrunk to 5/2=2.5 mm) or 8 mm heat shrink tubing with a shrink ratio of 3:1 (shrunk to 8/3= 2.6 mm). The last important thing is that the heat shrink tube fits snugly around the wires/connectors/components after shrinking.

In terms of diameter before shrinkage, you want it to be at least 20-30% larger than the largest component you cover. This way you can easily locate it.

Diameter before shrinkage and after shrinkage

When purchasing heat shrink tubing, you may see the shrink and unshrunk diameters referred to as pre-shrink and post-shrink diameters.

 

 

The diameter supplied by the weshare is the diameter before heat shrinkage from the factory, while the diameter after shrinkage is the diameter of the pipe after recovery from heating and shrinkage.

Shrinkage

Weshare shrink ratio of heat shrink tubing is simply the supplied (unshrunk) diameter divided by the heat shrink (shrunk) diameter. For example, heat shrink tubing with a supply diameter of 8 mm and a return diameter of 4 mm has a shrinkage ratio of 2:1.

For example, a higher shrink rate can be useful in applications that require a tighter fit, or when you need to slide heat shrink over a connector that is much larger than the wire it connects to.

The most popular shrink ratio is 2:1, followed by 3:1, and then 4:1. You can find heat shrink ratios as high as 6:1 and as low as 1.2:1, but these are non-standard sizes for very specialized applications.

Calculate heat shrink size

Measure the diameter of the component to be insulated. Digital calipers are best for this.

Multiply this measurement by 1.25 to give the heat shrink tubing enough clearance to move. In the example in the image above, this would give us 3.4mm × 1.25 = 4.25mm.

Select heat shrink tubing with an unshrunk diameter that is greater than the number in step 2, and a shrunken diameter that is less than the number in step 1. In our example, 6mm tubing with a shrink ratio of 2:1 would work well. It's large enough (>4.25mm) to slide over wires and shrinks to less than 4.25mm in diameter

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As one of the leading insulation sleeve suppliers in China, we warmly welcome you to wholesale high-grade insulation sleeve made in China here from our factory. All our products are with high quality and competitive price.