Cable Feedthroughs
- CCMT
- CHANGCHUN,CHINA
- Based on the order quantity
- 20,000 per month
1.The shrinkage ratio of heat-shrinkable feedthroughs can reach 3:1: It adapts to cables of different size and through-wall areas, and improves the installation matching range.
2. The heat shrinkable cable feed throughout the internal sealant design provides additional sealing protection during the heat shrink process, reducing the risk of moisture, dust and the external environment entering.
3. Cable feedthroughs for sealed protection has good dielectric properties and ultraviolet resistance, and is suitable for indoor and outdoor cable wall protection scenarios.
During the actual procurement process, a common problem is that wall-through sealing products with ordinary fixed size are difficult to adapt to different cable specifications, and problems such as tight fit, insufficient sealing or insufficient protection range may occur after installation. Especially in engineering projects, the outer diameter of cables, wall opening size and installation structure may differ in different projects. If the product specifications do not match, it may be necessary to purchase multiple models, increasing the complexity of inventory management and field installation.
CCMT's heat-shrinkable feedthroughs are designed with a heat shrinkable structure with a shrinkage ratio of 2:1 to 3:1, which can accommodate cables of different size and installation structures within a certain range. At the same time, the interior of the product is coated with sealant, which can enhance the sealing performance between the cable and the through-wall area after heating shrinkage, providing additional insulation and environmental protection for the cable system. For those customers who buy in a large scale or require a certain support for a project, we can tailor the color, size as well as other product details.
Product Introduction:
CCMT's heat shrinkable cable feed throughs is a heat shrinkable cable accessory that is mainly used to insulate and provide a seal at the points where cables go through walls, equipment enclosures, boxes, or other isolation structures. It is made of heat shrinkable material and is coated with sealant internally, which can further enhance sealing performance during the installation process and reduce moisture, dust and other external environmental factors from entering the through-wall position.
The product has good insulation properties and ultraviolet resistance, and can be used in different indoor and outdoor power and industrial environments. The standard color is mainly black, but different colors and product specifications can be provided depending on customer project demands.
Introduction to Product Technical Parameters:
| Parameter Name | Test Standards | Technical Specifications |
| Product Type | — | Heat-Shrinkable Cable Wall Bushing |
| Shrink Ratio | — | 2:1 - 3:1 |
| Minimum Full Recovery Temperature | — | 130 °C |
| Internal Structure | — | Internal Sealant Coating |
| Standard Color | — | Black |
| Customization Service | — | Customization of Colors and Specifications Available |
| Storage Temperature | — | -10 °C to 40 °C |
| Storage Humidity | — | Relative Humidity < 75% (Controlled Humidity) |
| Shelf Life | — | >5 Years from Date of Manufacture |
| Tensile Strength | ASTM D 2671 | ≥12 MPa |
| Elongation at Break | ASTM D 2671 | ≥200% |
| Volume Resistivity | IEC 93 | ≥1014 Ω·cm |
| Dielectric Strength | IEC 60243 | ≥12 kV/mm (1.0 mm) |
| Water Absorption | ISO 62 | ≤0.5% |
| Thermal Shock (225 °C, 4 Hours) | ASTM D 2671 | No Cracking, No Dripping |
| Density | ASTM D 792 | 1.0 - 1.1 g/cm3 |
| UV Resistance | — | UV Resistant |
Size Specifications:
CCMT's heat shrinkable cable feed throughout is available in multiple specifications to meet different cable size and through-wall installation requirements.
| Model (mm) | Supplied (mm)+10% | D (mm) | l (mm) | Recovered length (mm)+10% | Recovered wall (mm)+20% | |||||
| l* | f* | a* (Min.) | b* (Max.) | a* (Min.) | b* (Max.) | l | F | Dw | lw | |
| CMT 100 (45/15-5/5) | 110 | 45 | 45 | 15 | 15 | 5 | 130 | 45 | 2.8 | 2.8 |
| CMT 110 (85/42-15/5) | 110 | 45 | 85 | 42 | 15 | 5 | 130 | 45 | 2.8 | 2.8 |
| CMT 120 (60/30-45/10) | 125 | 55 | 60 | 30 | 45 | 10 | 135 | 55 | 2.6 | 4.4 |
| CMT 130 (100/52-20/8) | 150 | 55 | 100 | 52 | 20 | 8 | 170 | 65 | 3.0 | 3.0 |
| CMT 135 (150/92-14/5) | 130 | 55 | 150 | 92 | 14 | 5 | 150 | 55 | 3.5 | 3.5 |
| CMT 140 (160/92-60/20) | 125 | 35 | 160 | 92 | 60 | 20 | 145 | 55 | 3.0 | 3.2 |
| CMT 150 (160/92-100/45) | 125 | 35 | 160 | 92 | 100 | 45 | 145 | 55 | 3.5 | 3.2 |
I = The length of L Supplied
f = The length of F Supplied
a*= Inner diameter Supplied
b* = Inner diameter after fully recovered
Product Advantages:
1. Shrinkage ratio of 2:1 - 3:1 reduces procurement complexity for different cable specifications.
If the product's size adaptation range is limited, buyers may need to prepare more models, increasing inventory and procurement management costs. CCMT's cable feedthroughs for sealed protection has a shrinkage ratio of 2:1 - 3:1, which can adapt to cables of different size and through-wall structures within a certain range. The engineering projects and equipment manufacturers will benefit from decreased specification matching workload while gaining extra flexibility for on-site installation.
2. The heat shrinkable material is integrated with the inner sealant to reduce additional sealing construction.
Certain cable through-wall sealing systems necessitate the separate fitting of insulation components and sealing material. There are many on-site construction steps, which also increases the uncertainty of installation consistency. Our cable feedthroughs for sealed protection uses a heat shrinkable structure and is coated with sealant, which simultaneously covers and seals the cable through-wall area. Compared with solutions that require additional sealing materials, on-site construction steps can be reduced.
3. At the same time, it meets insulation, sealing and environmental protection needs.
The application of heat shrink cable entry seal is not just about filling the gap between cables and walls. For long-term power projects, insulation performance, moisture, dust and the impact of outdoor environment need to be considered for the through-wall position. In this regard, our heat shrink cable entry seal has a volume resistivity of ≥10 ‰ Ω·cm, a dielectric strength of ≥12 kV/mm, a water absorption of ≤0.5%, and has ultraviolet resistance, which can provide insulation, sealing and environmental protection in one product.
Product Application:
· Power equipment through-wall protection: Suitable for cable through-wall areas in substations, distribution equipment, electrical cabinets and other power facilities.
· Communications equipment and communications infrastructure: used for locations where communications cables pass through cabinets, equipment enclosures, or building structures.
· Industrial equipment: Suitable for cable penetration locations in industrial control cabinets, mechanical equipment, power control systems and production facilities.
· Outdoor electrical facilities: Can be used for outdoor distribution boxes, communication facilities and other cable installation locations exposed to the natural environment.
· Building and infrastructure projects: Suitable for sealing and insulation protection when cables pass through building walls, equipment room partitions and other structural areas.
Advantages of Choosing CCMT:
Changchun Chemistry Technology Co., Founded in 1986, Ltd. is a professional manufacturer focusing on the research and development, production and supply of power and communication cable accessories. It has more than 40 years of industry experience and currently has a team of more than 100 professional employees. Our product system covers multiple fields such as heat shrinkage, cold shrinkage, cable terminals and intermediate joints, heat shrinkage, sealing materials, waterproof materials and overhead line protection products, and can serve applications related to up to 220kV power systems.
Production scale:
Our production base is located in Changchun, China, covering an area of approximately 10,000 square meters. It has standardized production workshops, office areas, warehousing facilities and supporting production testing systems, which can meet the batch production needs of different types of cable accessories. For heat-shrinkable cap products, we are equipped with 5 molding machines and 3 injection molding machines for production.
We have more than 40 production lines, and the production system covers extrusion, injection molding, molding, expansion, sealing material processing and other processes. In addition, the factory has the ability to parallel production of different products such as heat shrinkage and cold shrinkage, which can cope with large-volume orders and multi-specification procurement needs.
Stable batch supply capabilities:
CCMT has a complete production and supply system. Depending on different product categories, existing production capacity includes:
· Heat shrink tubing/sleeve: approximately 5 million meters/month
· Cable end caps: approximately 30,000 pieces/month
· Heat shrinkable/cold shrinkable cable terminals and joints: approximately 10,000 sets/month
· Overhead line insulation sheath: approximately 50,000 meters/month...
Comprehensive quality and certification system:
Our company has established an ISO 9001:2015 quality management system. Products and materials meet a number of international market requirements, including:
· CE-related certification;
· RoHS requirements;
· REACH requirements;
· Third-party type test report;
· SGS material safety related testing...
In addition, the factory is equipped with a professional quality inspection department to inspect the appearance, size, quantity and performance of the products.
Serve global customers.
CCMT's products have served many markets in Asia, Europe, the Middle East and South America. And reached cooperation with many global companies:
· Supply large quantities of low-pressure heat shrink tubing products to ABB;
· Supply potting materials to Shell;
· Participated in the supply of cable accessories for multiple nuclear power projects;
· Serving overseas overhead line protection projects...
International exhibition experience:
We also actively participate in international power and industry exhibitions and conduct technical exchanges with buyers, engineering contractors and equipment manufacturers from different countries and regions. Exhibitions participated in recent years include:
· 2023 Hannover Messe, Germany;
· 2024 Middle East Energy Exhibition;
· 2025 Shanghai International Power Equipment and Technology Exhibition.
Through the above exhibitions, we not only continued to expand overseas markets, but also more accurately grasped the technologies in the global power and industrial fields to provide more competitive cable accessory solutions for the future.
FAQ:
1. What size information do I need to provide before purchasing cable wall parts?
In order to find the right product to suit your needs accurately, it is best to mention the outer diameter of the cable, through-wall hole size, wall thickness, and installation space when you get in touch.
2. Will differences in cable size affect sealing?
Yes. The cable size should be within the shrinkage range specified by the product to ensure that the heat shrinkable material and the inner sealant are fully bonded.
3. How do I confirm whether my project should choose a standard specification or a customized product?
Standard models can be selected for general applications; special cable size, installation structure or project requirements can be customized according to actual needs.
