Heat Shrinkable Sleeve Manufacturer in India
As a reliable Heat Shrinkable Sleeves manufacturer from India, we provide tested heat shrink sleeves for cable insulation, wiring harness protection, and environmental sealing applications used in various industries like electrical & electronics as well as industrial manufacturing – which establishes us as a renowned Electrical Insulation Materials Manufacturer in India.
Why Heat Shrinkable Sleeve Matters in Cable Protection
The heat shrinkable sleeve does not simply act as an insulating jacket but becomes a secure seal after being applied due to heat, thus preventing water entry, abrasions, and electrical failure at those parts of the cable which are at greatest risk: splices, terminals, and joints. Due to its 2:1 shrink rate and wide temperature range from –55°C to +125°C, the sleeve is capable of being used in a variety of installation conditions.
Halogen-Free & Low Smoke — Why This Matters for Critical Installations
Apart from the electrical characteristics, the fact that the sleeve is halogen-free and emits low smoke during combustion is an important factor that adds to the safety aspect of this particular product especially when used in enclosed areas where fire safety norms stipulate the use of materials which will not emit toxic halogenated compounds during combustion. With the sleeve being UL224 VW-1 rated and meeting the criteria of RoHS/REACH norms, it becomes a specification ready product.
Where This Sleeve Fits Within a Complete Cable Protection System
Heat shrinkable sleeve is most useful when it is used in conjunction with other cables and wires protection techniques. Depending on the specific requirements of the installation regarding mechanics, temperature, and abrasion resistance, it can be used together with other sleeves and insulations available in our Fiberglass Insulation Sleeve series:
- For higher continuous operating temperature requirements above the limit of this sleeve, which is 125°C, the fibreglass sleeves we carry can serve your needs.
- Where protection for cable bundles is required mechanically and not via sealing in a shrink fit, expandable braided sleeves are ideal.
- Polyimide film can be used as a companion wrap for internal component insulation where extreme dielectric performance is needed alongside external sleeve protection
- Insulation Tapes High Temperature for securing and finishing cable joints before or alongside sleeve application
- Fiberglass yarn for lacing and securing cable bundles in conjunction with sleeve protection
- Insulating Varnishes and Thinner for sealing and dielectric finishing of windings and joints in motor and transformer assemblies
Sourcing your complete cable and wire protection system from a single certified supplier ensures material compatibility across your full installation.
Applications Beyond Cable Insulation
While cable insulation and wire harness protection are the primary use cases, heat shrinkable sleeve from Harnawa Inc. is also specified across:
- Electronics fabrication industry – protection of components and connections in electronic products that have already been assembled
- Construction and building industry – fire-safe, weather-proof joints in cable installations for buildings and houses
- Underground rail transit systems – fire-safety approved joints of cables for public transportation
- Public places – halogen-free cable insulations satisfying rigorous public safety fire regulations
- General industrial applications – weather proofing cable joints that will be exposed to environment
Heat Shrinkable Sleeve Manufacturer in India — Why Choose Harnawa Inc.
Harnawa Inc. is a reputed manufacturer of heat shrink sleeves in India, which provides cross-linked polyolefin heat shrink sleeves along with the entire range of insulating materials used in cables, motors, transformers, and industrial applications.
What sets us apart:
- Conforms to RoHS and REACH specifications
- UL224 VW-1 grade for flame retardant applications
- Withstand temperatures ranging from -55°C to 125°C, shrink ratio 2:1
- Countrywide presence in important cities like Mumbai, Delhi, Pune, Ahmedabad, etc.
Frequently Asked Questions
1.What is the application of heat shrinkable sleeve?
Heat shrinkable sleeves are applicable for cable insulation, wire harness protection, electronics component protection, and environmental seal on cable joints for buildings, subways, public spaces, and industrial structures.
2.In what temperature range will heat shrinkable sleeve work?
Heat shrinkable sleeve works in continuous mode in the range of -55°C to +125°C, with minimal shrink temperature of 70°C and full recovery at 120°C.
3.Does heat shrinkable sleeve meet fire-safety standards?
Yes, it meets fire safety requirements; it is UL224 VW-1 flame retardant and halogen free and releases minimal smoke, thus making it suitable for fire safety installation.
4.What is the shrink ratio of heat shrinkable sleeve?
Standard 2:1 shrink ratio, where the sleeve shrinks on heating.
5.Is heat shrinkable sleeve environmentally safe?
Yes, it meets RoHS and REACH standards.
