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Hey there, I’m Steve!
I’m the sales manager of exnan medical silicone. I have been in this field for more than ten years. If you are looking for custom-made silicone rubber products, feel free to ask me any questions.
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Our certificate
Possess 800 square meters of Class 10,000 dust-free workshop, Passed ISO9001:2015 quality management system certification and ISO13485:2016 medical device quality management system, and its products have obtained multiple biocompatibility tests, US FDA and EU LFGB certifications.
Class 10,000 cleanroom certification
ISO 9001:2015
ISO 13485:2016
ISO 10993－11:2017 Tail vein injection
ISO 10993－11:2017 Intraperitoneal injection
ISO 10993－11:2017 Pyrogens
Skin irritation test for extract of 0.9% sodium chloride injection
Skin irritation test for sesame oil extraction
Skin sensitization test in guinea pigs using the maximization method with 0.9% sodium chloride injec
Skin sensitization test in guinea pigs:maximization method with sesame oil extraction
Cell toxicity test:agar diffusion method
Cooperating customers
Till now, Exnan products has been exports 35 countries, and more than 500 Medical equipment factory, health care companies, hospitals, clinics use our products, and win good reputation.
New
Our silicone accessories meet international medical standards through strict quality control.
Ensure patient safety with our premium products. Explore our catalog today!
News
Our silicone accessories meet international medical standards through strict quality control.
Ensure patient safety with our premium products. Explore our catalog today!
Medical Silicone Mold Design: The First Gateway to Product Precision
Time： 2026-05-19 16:00:00
Author： Amber
Click：
The precision and quality of medical silicone components heavily depend on mold design. LSR molding imposes special requirements for cold runners, precision venting, uniform temperature control, and demolding structures. Needle-valve cold runners reduce waste; venting grooves and vacuum assistance prevent trapped air; multi-zone temperature control ensures consistent curing; and proper ejectors or sliders avoid tearing. Stainless steel molds with anti-stick coatings extend life. High-precision m
The final precision, appearance, and demolding quality of medical silicone components largely depend on the level of mold design and manufacturing. Unlike plastic injection molding, silicone molding (especially LSR) has specific requirements for mold venting, runner balance, temperature distribution, and demolding structures. An excellent mold design can significantly reduce defects such as flash, short shots, air traps, and sticking, improving production efficiency and reducing scrap rates.
Key design considerations include:
- Cold runner system: Needle-valve cold runners are widely used in LSR injection to reduce material waste and prevent runner curing, maintaining low viscosity during cavity filling.
- Precision venting: For thin-walled or complex medical parts, venting grooves on the parting line or vacuum assistance are necessary to prevent trapped air that causes short shots or burns.
- Temperature control: Cavity surface temperature must be uniform; multi-zone independent temperature control ensures consistent curing speed.
- Demolding design: Medical silicone parts often feature undercuts, small holes, or soft thin areas, requiring ejector pins, air-assist, or slider mechanisms to avoid tearing.
- Mold material and coating: Corrosion-resistant stainless steel is preferred, with diamond-like carbon (DLC) or PTFE anti-stick coatings to extend mold life and reduce release agent usage.
Furthermore, high-precision machining equipment (such as 5-axis CNC, EDM) and CMM verification ensure mold quality. Guangdong Exnan Technology Co., Ltd. has an R&D team with over 30 years of experience, proficient in medical silicone mold design, and can optimize product structures with customers to ensure efficient transition from mold to mass production.
Vist us: www.exnan.com
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Hey there, I’m Steve!
15+ years in medical silicone accessories, linking manufacturers and healthcare providers for compliant, high-quality products. Trusted advisor focused on innovation and patient care. If you are looking for custom-made silicone rubber products, feel free to ask me any questions.
Hey there, I’m Steve!
15+ years in medical silicone accessories, linking manufacturers and healthcare providers for compliant, high-quality products. Trusted advisor focused on innovation and patient care. If you are looking for custom-made silicone rubber products, feel free to ask me any questions.
Welcome to contact us
If you have any questions, please fill in the relevant information. Weare very willing to provide more information and a full range ofservices for both you and your company
Welcome to contact us
If you have any questions, please fill in the relevant information. Weare very willing to provide more information and a full range ofservices for both you and your company
EXNAN
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Copyright © 2004-2024 Guangdong Exnan Technology Co.,Ltd
+86-0752-3869959 / 3869960
+86 180 0752 8206
Building 8, China-Korea Emerging Intelligent Manufacturing Industrial Park, No.27, Songbailing Road, China-Korea (Huizhou) Industrial Park, Zhongkai Area, Huizhou City, Guangdong Province, China
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