Heat Shrink Wire Boots
- CCMT
- CHANGCHUN,CHINA
- Based on the order quantity
- 20,000 per month
1. The multi-finger molded structure design, enables the cable to bend, twist and follow different shapes to suit complex installation and satisfy changing engineering requirement during on-site use.
2. Heat shrink molded insulation boots is so common that it's used in almost every field from power, ship, military, aerospace and auto industries to name a few.
3 Breakout Boots offer three different functions i. e. insulation sealing and mechanical protection. By means of the three combined functions breakout boots contribute to the safety of cable joints and also reliability improvement of the connections.
Old-style straight-tube heat-shrink covers may not fully cover the intersection point of cables, wires, and the junction of dissimilar connections. Therefore, weak points where the protectiveness layer breaks down could appear at branch points, connectors, or joints of dissimilar materials.
Wherever there might be moisture, dust, changes of temperature vibration, there is a great possibility the insulation of wiring, connections or terminators will be corrupted, broken down, aged or sealed, causing malfunctioning of the electric circuit.
Solution:
Our heat shrink molded insulation boots employ a precise molding technique and feature a multi-finger arrangement that enhances functionality. This allows them to perfectly adhere to cable endings of any shape, connector junctions and uneven spots once heating. It forms a whole insulating shield of one piece that can be trusted.
Breakout Boot Introduction:
This is a high-performance product made of heat-shrinkable insulation material precisely molded and intended primarily for cable connection, harness branches, and contacts.
The product tightly covers the object after shrinkage through heating and therefore forms an effective and waterproof/dust-proof insulation protective layer with good mechanical stress protection which helps greatly to improve the safety and reliability of electrical cable.
Because they have a range of finger shapes and other forms of structures and materials, shrinkable cable insulation covers find broad applications in power, rail transport, ship-building, aerospace, military, automotive , and industrial equipment manufacturing sectors. They can protect low, middle, or high voltages in cable junctions, splices, and terminations completely.

Heatshrink Boot Parameters:
| Part No. | Supplied | After Shrink | |||||
| Hmin | Jmin | Hmax | HW | Jmax | JW | P | |
| 222K121 | 24 | 24 | 20.2 | 2.0±0.1 | 5.0 | 1.9±0.1 | 28 |
| 222K132 | 30 | 30 | 13.5 | 2.0±0.1 | 6.5 | 1.75±0.1 | 42 |
| 222K142 | 32 | 32 | 17.0 | 3.0±0.1 | 6.9 | 2.0±0.1 | 40 |
| 222K152 | 36 | 36 | 20.0 | 3.5±0.1 | 8.0 | 2.0±0.1 | 60 |
| 222K163 | 43 | 43 | 26.0 | 4.25±0.1 | 12.0 | 3.0±0.1 | 60 |
| 222K174 | 53 | 53 | 34.0 | 4.65±0.1 | 14.0 | 3.5±0.1 | 80 |
| 222K185 | 67 | 67 | 42.4 | 5.8±0.1 | 19.0 | 3.8±0.1 | 98 |
Advantages of Heat Shrink Boots:
1. Precision Molding Structure for Reliable Sealing in Complex Areas.
Heat shrink boots benefit from precise molding technology as well as a multi-finger structure design, which enables exact fit not only on straight sections of wires or cables but also on complex geometrics like wire harnesses branches, cable terminals, and transformer leads. This results in a complete sealing effect that standard heat shrink tubing can't match, effectively weakening the electric field's weak spots along with guarding against the environmental media's intrusion, hence it is contributing to the connection's longevity and reliability.
2. Integrated Insulation, Sealing, and Mechanical Protection.
The product combines the properties of excellent insulation, waterproof sealing, and mechanical protection that can resist mechanical damage. As it is heat-shrunk, the product turns into an integral layer that prevents moisture, dust, and chemical media from getting into the system. It's also resistant to strong impact, abrasion, and vibrations as a protective measure for the cable connections, thus helping save maintenance expenses, and prolong the service life of the system.
3. Excellent Environmental Adaptability.
Heatshrink booting is produced from flame-resistant and high-temperature polyolefin and other weather-proof materials. Their outstanding resistance to changes in temperature, the aging of materials, resistance to chemicals and weathering enable the use of this equipment to be quite reliable in such conditions as marine, aerospace, military, power, and industrial equipment where environments are very harsh.
Practical Applications of Cable Sealing Boots:
Vehicles and New Energy Vehicles are automotive categories that include the engine compartments, chassis wiring harness, door wiring harness, battery systems, and the Advanced Driver Assistance Systems (ADAS) which are exposed to harsh environments such as vibration, high temperature, oil contamination, and humidity to maintain reliable connection.
Aerospace and Military Equipment: Suitable for critical electrical connections in aircraft avionics systems, engine wiring harnesses, communication and navigation equipment, and military electronic systems.
Equipment for Power and Industry: Besides cable terminals used at low- and high-voltage levels, the materials go into cable branching units, transformer conductors, switchboards and cabinets, engines, as well as industrial machinery for various manufacturing processes and control systems.
Electronic Equipment and Wiring Harness Manufacturing: Suitable for connection protection in electronic equipment, power systems, battery packs, control modules, and various wiring harness assemblies.

About Us:
Currently, our company has a production base of approximately 10,000 square meters, over 200 employees, and more than 40 professional production equipment. We have established an integrated manufacturing system covering raw material development, production, quality testing, and finished product delivery, capable of meeting stable, large-volume supply demands.

Succeedingly, our achievements after founding the company in 1986 include CE, RoHS, REACH, the IEC Certifications together with the SGS Material TestingCertification, which help us meet the high standards in terms of quality and compliance for products in foreign markets. In addition to this, our manufacturing process is under the surveillance of the ISO 9001:2015 quality management system bearing No.00123Q36311R5M/2200 that ensures only top-grade products that have passed appearance, dimensions, as well as sealing tests are shipped from the factory.

Case Studies:
After more than four decades of development, we have been able to maintain an impressive level of product quality and manufacturing capability. This stability has enabled us to become major long-term partners and co-operates with some of the leading worldwide companies for e. g. ABB, Raychem, and 3M.
In that cooperation, we have supplied to the 3M company tens of thousands of rolls of the custom OEM insulating tape. Moreover, we have been the suppliers of the nearly one-million-meter amount of the low-voltage heat shrink tubing to the ABB company for quite some time already. Currently, our products serve the electric power and telecommunication projects in Europe, the Middle East, Southeast Asia, and South America among other countries and regions.
Exhibition Activities:
We were honored to be part of the 32nd Shanghai International Power Equipment and Technology Exhibition, which took place in November 2025. It gave us a perfect platform to exchange views face-to-face with power engineering companies from Europe, the Middle East, and Southeast Asia. We discussed their requirements for sealing materials under various conditions. We came away from the fair with not only the knowledge but also the know-how to refine our products, propose more tailored solutions to specific markets, and, more importantly, break into new international markets.

FAQ:
1. Is cable sealing boot easy to install?
Yes. The product shrinks and molds quickly when heated, simplifying the installation process and effectively improving construction efficiency and reducing installation costs.
2. How to choose the right cable sealing boot?
We have different models matching with cable sizes, number of branches and connection structures, voltage levels, and operating environments etc. You can select suitable ones or even request a customization based on your project requirements.








