Discover the superior quality of our high-temperature, thick-wall 20mm heat shrink tubing, designed to provide robust protection and reliability in demanding applications.
Heat Shrink Tube: the ultimate solution for secure insulation and protection.Introducing the exceptional Heat Shrinkable Tubing from Dongguan Zhonghe Electronics Co., Ltd. Meticulously engineered with advanced polymer materials, this tubing provides unparalleled performance by adeptly enveloping and shrinking around objects under heat. Our range includes tubes made from top-tier polyolefin, fluoroplastic, silicone rubber, and polyester, each boasting unique, impressive properties. These materials ensure our tubes not only meet but exceed industry benchmarks, catering to a wide array of challenging industrial uses.
Table 1: Outstanding Performance Attributes of the HF Flame Retardant Heat Shrink Tube.
| Property |
Testing Method |
Performance index |
| Physical property |
Tensile strength/MPa |
GB/T1040 |
≥10.4 |
|
| Elongation at break/% |
GB/T1040 |
≥200 |
|
| Tensile strength after thermal aging/MPa |
UL224;158ºC×168hr |
≥7.3 |
|
| Elongation at break after thermal aging/% |
UL224;158ºC×168hr |
≥100 |
|
| Heat shock resistance |
UL224;250ºC×4hr |
Not sticky, non-cracked |
|
| Cold bending resistance |
UL224;-30ºC×1hr |
non-cracked |
|
| Electrical performance |
Withstand voltage |
300V |
UL224 |
1500V,1min no breakdown |
|
| 600V |
UL224 |
2500V,1min no breakdown |
|
| Breakdown strength/KV/mm |
GB/T1408 |
≥15 |
|
| Volume resistivity/Ω•cm |
GB/T1410 |
≥1×1014 |
|
| Chemical property |
Copper stability |
UL224;158ºC×168hr |
PASS |
|
| Corrosion resistance |
UL224;158ºC×168hr |
PASS |
|
| Flame retardancy |
UL224 |
☆ |
|
Important Note: ☆ denotes the necessity for improved flame retardancy in yellow and white tubes. Transparent versions are notable for being non-flame retardant.
Table 2: Comprehensive Product Dimensions of H-CB Tube.
(HF Flame Retardant Thin Wall Heat Shrinkable Tube: engineered for superior safety and reliability.)
Size
(mm) |
Preshrink Size(mm) |
Size after Shrinkag(mm) |
Pack |
Range of Application (mm) |
| Inter Diameter |
Wall Thickness |
Inter Diameter |
Wall Thickness |
| Φ0.6CB |
0.9±0.2 |
0.13±0.05 |
≤0.40 |
0.20±0.10 |
200 |
0.4~0.7 |
| Φ0.8CB |
1.1±0.2 |
0.13±0.05 |
≤0.50 |
0.20±0.10 |
200 |
0.6~0.8 |
| Φ1.0CB |
1.40±0.2 |
0.13±0.05 |
≤0.65 |
0.20±0.10 |
200 |
0.7~1.0 |
| Φ1.5CB |
1.90±0.2 |
0.13±0.05 |
≤0.85 |
0.20±0.10 |
200 |
0.9~1.4 |
| Φ2.0CB |
2.40±0.2 |
0.13±0.05 |
≤1.00 |
0.22±0.10 |
200 |
1.1~1.8 |
| Φ2.5CB |
2.90±0.2 |
0.13±0.05 |
≤1.30 |
0.25±0.10 |
200 |
1.4~2.3 |
| Φ3.0CB |
3.40±0.2 |
0.13±0.05 |
≤1.50 |
0.28±0.10 |
200 |
1.6~2.7 |
| Φ3.5CB |
3.90±0.2 |
0.13±0.05 |
≤1.80 |
0.28±0.10 |
200 |
1.9~3.2 |
| Φ4.0CB |
4.40±0.2 |
0.15±0.05 |
≤2.00 |
0.30±0.10 |
200 |
2.1~3.6 |
| Φ4.5CB |
4.90±0.2 |
0.15±0.05 |
≤2.30 |
0.30±0.10 |
100 |
2.4~4.0 |
| Φ5.0CB |
5.50±0.2 |
0.15±0.05 |
≤2.5 |
0.32±0.10 |
100 |
2.6~4.5 |
| Φ6.0CB |
6.50±0.2 |
0.15±0.05 |
≤3.0 |
0.32±0.10 |
100 |
3.1~5.4 |
| Φ7CB |
7.50±0.3 |
0.15±0.05 |
≤3.5 |
0.32±0.10 |
200 |
3.7~6.3 |
| Φ8CB |
8.50±0.3 |
0.15±0.05 |
≤4.0 |
0.32±0.10 |
200 |
4.2~7.2 |
| Φ9CB |
9.50±0.3 |
0.15±0.05 |
≤4.5 |
0.35±0.10 |
200 |
4.7~8.0 |
| Φ10CB |
10.5±0.3 |
0.15±0.05 |
≤5.0 |
0.35±0.10 |
200 |
5.2~9.0 |
| Φ11CB |
11.5±0.3 |
0.18±0.05 |
≤5.5 |
0.40±0.10 |
200 |
5.7~10.0 |
| Φ12CB |
12.5±0.3 |
0.20±0.05 |
≤6.0 |
0.40±0.10 |
200 |
6.2~11.0 |
| Φ13CB |
13.5±0.3 |
0.20±0.05 |
≤6.5 |
0.40±0.10 |
200 |
6.7~12.0 |
| Φ14CB |
14.5±0.3 |
0.20±0.05 |
≤7.0 |
0.40±0.10 |
200 |
7.3~13.0 |
| Φ15CB |
15.5±0.4 |
0.20±0.05 |
≤7.5 |
0.40±0.10 |
200 |
7.8~14.0 |
| Φ16CB |
16.5±0.4 |
0.22±0.05 |
≤8.0 |
0.40±0.10 |
200 |
8.3~15.0 |
| Φ17CB |
17.5±0.4 |
0.22±0.05 |
≤8.5 |
0.40±0.10 |
200 |
8.8~16.0 |
| Φ18CB |
18.5±0.4 |
0.22±0.05 |
≤9.0 |
0.42±0.10 |
200 |
9.3~17.0 |
| Φ20CB |
20.5±0.5 |
0.25±0.05 |
≤10.0 |
0.45±0.10 |
200 |
10.5~19.0 |
| Φ22CB |
22.5±0.5 |
0.25±0.05 |
≤11.0 |
0.45±0.10 |
200 |
11.5~20.5 |
| Φ25CB |
25.5±0.5 |
0.25±0.05 |
≤12.5 |
0.45±0.10 |
100 |
13.0~24.0 |
| Φ28CB |
28.5±0.5 |
0.30±0.08 |
≤14.0 |
0.60±0.10 |
100 |
14.5~27.0 |
Table 3 Precise Product Dimensions Designed specifically for the H tube (HF Flame Retardant Heat Shrink Tube): excellence in safety and performance.
Size
(mm) |
Preshrink Size
(mm) |
Size after Shrinkag(mm) |
Old packaging |
New packaging |
Range of Application
(mm) |
| Inter Diameter |
Wall Thickness |
Max Inter Diameter |
Wall Thickness |
Meter/Roll |
| Φ0.5 |
0.8±0.2 |
0.18±0.05 |
≤0.30 |
0.33±0.10 |
400 |
400 |
0.3~0.6 |
| Φ0.6 |
0.9±0.2 |
0.18±0.05 |
≤0.40 |
0.33±0.10 |
200 |
400 |
0.4~0.7 |
| Φ0.8 |
1.1±0.2 |
0.18±0.05 |
≤0.50 |
0.33±0.10 |
200 |
400 |
0.6~0.8 |
| Φ1.0 |
1.5±0.2 |
0.20±0.05 |
≤0.65 |
0.36±0.10 |
200 |
400 |
0.75~0.9 |
| Φ1.5 |
2.0±0.2 |
0.20±0.05 |
≤0.85 |
0.36±0.10 |
200 |
400 |
0.95~1.4 |
| Φ2.0 |
2.5±0.2 |
0.20±0.05 |
≤1.00 |
0.45±0.10 |
200 |
400 |
1.1~1.8 |
| Φ2.5 |
3.0±0.2 |
0.20±0.05 |
≤1.30 |
0.45±0.10 |
200 |
400 |
1.35~2.3 |
| Φ3.0 |
3.5±0.2 |
0.20±0.05 |
≤1.50 |
0.45±0.10 |
200 |
400 |
1.6~2.7 |
| Φ3.5 |
4.0±0.2 |
0.23±0.05 |
≤1.80 |
0.45±0.10 |
200 |
400 |
1.85~3.2 |
| Φ4.0 |
4.7±0.2 |
0.25±0.05 |
≤2.00 |
0.45±0.10 |
200 |
400 |
2.1~3.6 |
| Φ4.5 |
5.0±0.2 |
0.28±0.05 |
≤2.30 |
0.56±0.10 |
100 |
200 |
2.35~4.0 |
| Φ5.0 |
5.5±0.2 |
0.28±0.05 |
≤2.50 |
0.56±0.10 |
100 |
200 |
2.6~4.5 |
| Φ5.5 |
6.0±0.2 |
0.28±0.05 |
≤2.80 |
0.56±0.10 |
100 |
200 |
2.9~5.0 |
| Φ6.0 |
6.5±0.2 |
0.28±0.05 |
≤3.00 |
0.56±0.10 |
100 |
200 |
3.1~5.4 |
| Φ7.0 |
7.5±0.3 |
0.30±0.05 |
≤3.50 |
0.56±0.10 |
100 |
100 |
3.7~6.3 |
| Φ8.0 |
8.5±0.3 |
0.30±0.05 |
≤4.00 |
0.56±0.10 |
100 |
100 |
4.2~7.2 |
| Φ9.0 |
9.5±0.3 |
0.30±0.08 |
≤4.50 |
0.56±0.10 |
100 |
100 |
4.7~8.0 |
| Φ10 |
10.5±0.3 |
0.30±0.08 |
≤5.00 |
0.56±0.10 |
100 |
100 |
5.2~9.0 |
| Φ11 |
11.5±0.3 |
0.30±0.08 |
≤5.50 |
0.56±0.10 |
100 |
100 |
5.7~10 |
| Φ12 |
12.5±0.3 |
0.30±0.08 |
≤6.00 |
0.56±0.10 |
100 |
100 |
6.2~11 |
| Φ13 |
13.5±0.3 |
0.35±0.10 |
≤6.50 |
0.56±0.10 |
100 |
100 |
6.7~12 |
| Φ14 |
14.5±0.3 |
0.35±0.10 |
≤7.00 |
0.70±0.10 |
100 |
100 |
7.3~13 |
| Φ15 |
15.5±0.4 |
0.35±0.10 |
≤7.50 |
0.70±0.10 |
100 |
100 |
7.8~14 |
| Φ16 |
16.5±0.4 |
0.35±0.10 |
≤8.00 |
0.70±0.10 |
100 |
100 |
8.3~15 |
| Φ17 |
17.5±0.4 |
0.35±0.10 |
≤8.50 |
0.70±0.10 |
100 |
100 |
8.8~16 |
| Φ18 |
19.0±0.5 |
0.35±0.10 |
≤9.00 |
0.70±0.10 |
100 |
100 |
9.3~17 |
| Φ20 |
22.0±0.5 |
0.40±0.12 |
≤10.00 |
0.83±0.15 |
100 |
100 |
10.4~19 |
| Φ22 |
24.0±0.5 |
0.40±0.12 |
≤11.00 |
0.83±0.15 |
100 |
100 |
11.4~21 |
| Φ25 |
26.0±0.5 |
0.45±0.12 |
≤12.50 |
0.90±0.15 |
50 |
50 |
12.8~24 |
| Φ28 |
29.0±0.5 |
0.45±0.12 |
≤14.00 |
0.90±0.15 |
50 |
50 |
14.4~29 |
| Φ30 |
31.5±1.0 |
0.45±0.12 |
≤15.00 |
1.00±0.15 |
50 |
50 |
16~29 |
| Φ35 |
36.5±1.0 |
0.45±0.12 |
≤17.50 |
1.00±0.15 |
50 |
50 |
18~34 |
| Φ40 |
41.5±1.0 |
0.50±0.15 |
≤20.00 |
1.00±0.15 |
50 |
50 |
21~39 |
| Φ45 |
46.5±1.0 |
0.50±0.15 |
≤22.5 |
1.00±0.20 |
25 |
25 |
23.5~44 |
| Φ50 |
≥50 |
0.50±0.15 |
≤25.0 |
1.00±0.20 |
25 |
25 |
26~49 |
| Φ60 |
≥60 |
0.60±0.15 |
≤30.0 |
1.30±0.25 |
25 |
25 |
35-55 |
| Φ70 |
≥70 |
0.65±0.15 |
≤36.0 |
1.30±0.25 |
25 |
25 |
40-65 |
| Φ80 |
≥80 |
0.70±0.18 |
≤41.0 |
1.46±0.30 |
25 |
25 |
45-75 |
| Φ90 |
≥90 |
0.70±0.18 |
≤46.0 |
1.46±0.30 |
25 |
25 |
50-88 |
Note: For specifications of Φ30 and above, the default G tube model is used, which aligns with EU RoHS2.0 environmental performance standards (2011/65/EU).
1. Operating Conditions
1.1 Engineered for seamless operation in a wide temperature spectrum from a frosty -55°C to a tropical 125°C.
1.2 Demonstrates remarkable resilience for prolonged usage in severe acidic and alkaline environments.
1.3 Specifically designed to meet stringent environmental protection standards.
2. Appearance Requirements
2.1 The surface should be pristine, devoid of visible scratches, uneven textures, or bamboo-joint-like marks.
2.2 The exterior must be flawlessly smooth, completely free from oil stains and dust accumulation.
2.3 Ensures high-quality printing with no ghosting, excess ink, incomplete prints, or print slippage.
3. Heat Shrinkage Performance
3.1 Initiates shrinkage at 70°C, achieving complete contraction by 125°C.
Conforming to UL224 standards, the complete shrinkage temperature of 200°C is reached within 3 minutes, ensuring top-tier performance.
3.2 The longitudinal shrinkage rate is meticulously controlled within ±5%, guaranteeing precision and consistency.
4. Performance Characteristics of Materials
The physical and chemical properties of our materials are precisely aligned with the stringent criteria in Table 1, ensuring superior quality.
Dimensions of our halogen-free, flame-retardant, thin-wall heat-shrinkable sleeves are meticulously crafted to adhere to the specifications in Table 2.
Dimensions of our halogen-free, flame-retardant heat-shrinkable sleeves are expertly designed to follow the guidelines in Table 3 with precision.
Our standard color palette includes black, red, blue, yellow, green, and white. We also offer custom color options such as purple, gray, and brown to meet specific customer preferences.
When indulging in the use of our premium Single Wall Heat Shrink Tube, meticulously crafted for unparalleled performance, achieving the pinnacle of shrinkage efficiency demands your thoughtful precision. To unlock its full potential, we recommend employing a forced-air constant-temperature oven, with a careful setting of the shrinkage temperature at a precise 125°C. It's crucial to acknowledge the initial temperature dip once the heat-shrinkable sleeve is placed inside the oven. Exercise patience and allow the oven to gradually stabilize to the designated temperature. As the oven reaches equilibrium, the sleeve is expertly guided by the circulating hot air to achieve its ultimate shrinkage temperature. Witness the sleeve reaching its maximum shrinkage capability as the oven's actual temperature harmonizes perfectly with the set point, maintaining this alignment steadfastly for a crucial 3-minute duration.
8. Application Field
8.1 Insulation protection for the complex internal wiring of electronic devices, ensuring longevity and reliability.
8.2 Insulation protection for electronics internal wiring, safeguarding against potential hazards and enhancing device safety.
8.3 Guarantee that communication cables remain waterproof and dust-proof, maintaining seamless connectivity and integrity.
8.4 Deliver robust protection for household wire connections, ensuring safety and efficiency in daily operations.
8.5 Provide versatile materials for DIY jewelry making, offering endless possibilities and adding a touch of creativity.
Company Profile
Dongguan Zhonghe Electronics Co., Ltd. shines as a luminary in the world of high-tech enterprises, a veritable leader renowned for its pioneering spirit and exceptional proficiency in crafting cutting-edge polymer-modified protective materials. With a complete array of one-stop solutions, this innovative powerhouse has been setting standards since its foundation in 2010, strategically nestled in the vibrant and visionary Qingxi Town of Dongguan City. The year 2020 heralded a monumental leap forward with the unveiling of a state-of-the-art branch factory in Jiangsu, sprawling over an impressive 15,000 square meters. This bold expansion signifies our relentless commitment to forging new frontiers in technological advancement.
Dongguan Zhonghe Electronics Co., Ltd. operates on a philosophy deeply rooted in its core values—championing the spirit of unity and fostering mutually rewarding partnerships. Our dedicated team is driven by the mission to 'safeguard the Internet of Things,' passionately creating unparalleled value and delivering delight to our cherished clientele. We extend a warm and enthusiastic invitation to both domestic and international clients, encouraging you to visit our facilities for insightful discussions and the cultivation of promising collaborative ventures!
Today, we proudly serve an incredible network of clients across 102 countries worldwide, winning the trust and satisfaction of over 3,000 customers. Our expertly engineered protective sleeves could encircle the globe three times each year, with a remarkable 60 million meters specifically earmarked for the automotive sector. Our steadfast dedication to excellence has firmly established us as a reliable, long-term partner for a plethora of automotive OEMs and globally acclaimed corporations.
Certifications
Zhonghe Electronics takes immense pride in our prestigious array of certifications, signaling our steadfast dedication to superior quality and environmental stewardship. Our esteemed collection features the globally recognized ISO9001 and IATF16949 certifications, showcasing our excellence in quality management systems. Additionally, our environmental commitment is substantiated by the rigorous ISO14001 certification. Enhancing our production capabilities, we incorporate a state-of-the-art MES system, ensuring unparalleled product consistency and achieving a remarkable 5% reduction in losses, setting new benchmarks within the industry. Our innovative spirit is further exemplified through our highly skilled R&D team and ultramodern laboratory. This dedication to ingenuity has resulted in 5 distinguished invention patents and 18 utility model patents. Underscoring our relentless pursuit of innovation, we unveil 3 to 5 groundbreaking products each year, meticulously crafted to exceed customer expectations and adeptly meet their diverse and ever-evolving needs.
Exhibition & Our Partners
Packaging & Shipping
01 : Why choose us?
A: 1. With over 15 years of unparalleled expertise in the ever-evolving electronics industry, we promise top-tier quality and extraordinary service. Your complete satisfaction is our ultimate goal!
2. Our cutting-edge research and development team excels in creating bespoke solutions tailored to the distinct needs of our clientele, ensuring a flawless fit every single time!
3. Our enthusiastic and skilled sales team is unwaveringly committed to delivering exceptional service, consistently exceeding your expectations!
02 : What's the MOQ for your production?
A: We are flexible and open to orders of any magnitude, whether large or small. We are ready to meet your needs. Contact us for customized information that suits your specific requirements.
03: Can I expect to get the sample?How long can I expect to get it?
A: Indeed, we provide free samples for your testing purposes. Expect delivery within a speedy 4-6 days for prompt and effective evaluation.
Shipment times may vary depending on logistics and courier choice, ensuring adaptable and convenient delivery options tailored to your preferences.
04 : Can you do the design for us?
A: Absolutely, as a seasoned manufacturer, we have the proficiency to handle your design requirements efficiently, transforming your visionary ideas into tangible results.
05 : What's your payment term?
A: Our payment terms feature a 30% T/T deposit with the balance due before shipment, providing a seamless and secure transaction experience.
06 : What's the list of certificates you hold?
A: We proudly possess prestigious certifications such as IATF16949, RoHS, CE, EN45545 Test Report, and ELV Test report, showcasing our dedication to regulatory compliance and exceptional quality standards.
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