Are you looking for the best rubber hole stoppers for your medical, laboratory, or industrial needs? China is home to several top-notch manufacturers that specialize in producing high-quality rubber stoppers. Let’s dive into a comparison of the leading factories, highlighting their unique features, product ranges, and what sets them apart.

Silicone Rubber Plugs Stoppers Caps

Product Details: The website lists various types of silicone rubber plugs, stoppers, and caps manufactured by Hebei Shida Seal Group. These products include molded silicone rubber parts such as hole plugs, pipe stoppers, and caps available in white and black colors. The products are categorized based on the inner diameter (ID) of the holes they fit, ranging from 2.1 mm to 13.5 mm and larger sizes up to 61.3 mm. Each product has a specific item number and corresponding size range[1].

Pros:
– Available in a wide range of sizes to fit various hole diameters
– Made from silicone rubber, which can resist high temperatures
– Can be used in applications requiring resistance to heat and chemicals
– Customizable to meet specific requirements

Cons:
– Limited information on the specific temperature resistance and chemical compatib…
– No detailed information on the manufacturing process or material compounds used
– No mention of reusability or the number of times the plugs can be used before re…

Rubber Bung Stopper – China Supplier, Wholesale

China Rubber Stopper For The Blood Collection Tube Black …

Product Details: The rubber stopper for blood collection tubes is made from materials such as EPDM, NBR, and SILICONE. It is manufactured by ANCONN and originates from Guangdong, China. The product is customizable in size, shape, and color, with a hardness range of 30~90 Shore A. It is certified by SGS, FDA, REACH, and ROHS. The stoppers are used to seal the openings of test tubes, flasks, and other laboratory glassware, preventing gas or liquid escape and contamination. They can be packaged in bags and cartons and are shipped from Shenzhen. The supply ability is 10,000,000 pieces per week, with a lead

time of 6 days for quantities over 1000 pieces.

Pros:
– Provides a tight seal and prevents gas or liquid escape
– Offers high chemical resistance and impermeability
– Customizable in size, shape, and color
– Available in various materials (EPDM, NBR, SILICONE)
– Certified by SGS, FDA, REACH, and ROHS
– Low puncture force

Cons:
– May not be suitable for all types of laboratory applications due to material lim…
– Lead time can vary depending on the quantity ordered

China Supply Low Price Small Rubber Hole Plugs

Product Details: The product listed on the website is small rubber hole plugs supplied from China. These plugs are priced at USD 0.05 each, indicating they are relatively inexpensive. The details provided are limited, but it mentions the low price as a key feature.

Pros:
– Low price at USD 0.05 each
– Potentially suitable for various applications requiring small hole plugs

Cons:
– Limited information available on the product’s specifications and materials
– No detailed description of the product’s durability or performance

Custom Small Hole Rubber Plug For Automobile Connector

Product Details: The custom small hole rubber plug for automobile connectors is manufactured by BRP, a leading supplier in China. Key parameters include an installation style of cable mount or free hanging, and a termination type of press fit. The material used is Polybutylene Terephthalate (PBT). The product has a temperature range of -40ºC to +230ºC and is certified under ISO 9001:2008, TS16949, FDA, REACH, ROHS, and SGS standards. The plugs are known for their compression resistance, toughness, oil resistance, water resistance, and cavitation erosion resistance. Production capacity is 1,000,000 pieces per month, and shipping options include air mail, sea, and express

services like DHL, FedEx, UPS, TNT, and EMS.

Pros:
– High temperature resistance ranging from -40ºC to +230ºC
– Certified under multiple standards including ISO 9001:2008, TS16949, FDA, REACH,…
– Excellent compression resistance, toughness, oil resistance, water resistance, a…
– Customizable to accept customers’ designs
– High production capacity of 1,000,000 pieces per month

Cons:
– Limited information on the specific sizes and dimensions available
– No details provided on the minimum order quantity or pricing
– May require additional communication to customize the product according to speci…

Custom Rubber Plug Wholesale

rubber stopper plug – Quality Supplier from China

Product Details: The rubber stopper plugs available on the website are customized and made from various materials including soft rubber, silicone, EPDM, and NBR. They come in a range of hardness levels, from 40 to 80 Shore A. The plugs are designed for waterproof applications and feature wear resistance. Some models include a hole, and they are suitable for various industrial uses such as oilfield sealing, hammer union seals, and valve seals. The products also include metal-backed rings and are available in different sizes.

Pros:
– Customizable to fit specific needs
– Made from durable materials such as NBR, EPDM, and silicone
– Available in a range of hardness levels (40-80 Shore A)
– Waterproof and wear-resistant
– Suitable for various industrial applications including oilfield sealing and valv…

Cons:
– Limited information on the website regarding specific product dimensions and pri…
– No clear indication of the products’ compatibility with all types of equipment o…
– May require additional inquiries for detailed specifications and custom orders

LongCheng made in China Custom white silicone stopper …

Product Details: The LongCheng custom white silicone stopper is made from silicone (MQ/MVQ/MPQ) and is available in a 6mm size. It is designed for use as a grommet or rubber plug for holes. The material offers a temperature range of -40~200℃, indicating excellent heat resistance. The stopper can be customized to meet specific needs.

Pros:
– Excellent heat resistance
– Good compression set resistance
– Good ozone resistance
– Customizable size and application

Cons:
– No specific cons mentioned in the product details.

Custom Pharmaceutical Vial Rubber Stoppers | China Factory

Product Details: The rubber stoppers are manufactured for the sealing of various injection vials, including those for antibiotics and other powder crude drugs. They are available in different types such as 20-V, 20-A, 24-B, 28-B, 28-B3, 32-A, and 32-A1, each with specific configurations like needled holes and arcs. The materials used include butyl, bromo butyl, chlorobutyl, silicone, neoprene, nitrile, and natural polymers. The stoppers are compliant with industry standards YBB00042005-2015 and Q/320281NFA01-2015. They are packed in double-layer high-density polyethylene bags and corrugated boxes. Colors available include white, grey, red, blue, and black, with customized colors also possible.

Pros:
– Suitable for sealing all kinds of injection vials, including freeze-dried and st…
– Made from high-quality materials such as butyl, bromo butyl, and chlorobutyl rub…
– Compliant with global quality standards and industry regulations.
– Available in various sizes and configurations to meet specific customer requirem…
– Customized colors and designs are possible to meet different application needs.

Cons:
– Limited information on the specific production process and quality control measu…
– No detailed data on the long-term performance or shelf life of the rubber stoppe…
– Potential for material incompatibility with certain drugs, although the material…

Plastic Hole Plug, Vinyl, Rubber, & Silicone Plugs

Product Details: StockCap offers a wide range of plugs, including threaded plugs, T-plugs, and other types. For example, the 1.060″ x 0.870″ Red Threaded Plug (PT-40) has a thread size of 7/8-14, a flange diameter of 1.060 inches, a plug length of 0.870 inches, and a tubing size of 5/8 inches. The T-plugs, such as the 0.866″ x 0.630″ Red T-Plug (T-165), are tapered for easy installation and come in various sizes to protect tubing ends, threads, and ports. These products are made from materials like LDPE and are available in different colors and packaging quantities[2][4][5].

Pros:
– Extensive selection of styles, sizes, and materials to fit various applications.
– Tapered plugs ensure easy installation and secure fit.
– Available in different colors and packaging quantities to meet specific needs.
– Free samples available for testing before purchase.
– Products are economical and ensure high customer satisfaction.

Cons:
– May require testing to ensure the correct fit for specific applications.
– No detailed information on the durability or lifespan of the products provided o…

Comparison Table

Frequently Asked Questions (FAQs)

Frequently Asked Questions About Rubber Hole Stoppers Factories in China

What are the primary uses of rubber hole stoppers in various industries?

Rubber hole stoppers are versatile and used in multiple industries. They are essential for sealing components, especially those containing chemicals or exposed to high temperatures. In medical applications, they help in sterilization and preventing contamination. You can also find them in laboratory settings to prevent gas or liquid from escaping containers, and in industrial applications to mask or cover parts during processes like powder coating.

What materials are commonly used to manufacture rubber hole stoppers in China?

Chinese manufacturers often use a variety of materials to produce rubber hole stoppers, including silicone, EPDM, NBR (nitrile), FKM, and NR (natural rubber). Each material has its own strengths, such as resistance to heat, chemicals, or wear, making them suitable for different applications. For example, silicone is ideal for high-temperature applications, while EPDM is more economical and versatile.

Can I customize the size and shape of rubber hole stoppers?

Yes, you can customize the size and shape of rubber hole stoppers to fit your specific needs. Many Chinese manufacturers offer custom molding services, allowing you to specify the exact dimensions and shape required for your application. This ensures that the stoppers fit perfectly and serve their purpose effectively.

What quality standards do Chinese rubber hole stopper manufacturers adhere to?

Chinese manufacturers of rubber hole stoppers often adhere to strict quality standards. They may comply with regulations such as those set by the China Food and Drug Administration, especially for medical-grade stoppers. Additionally, they may use premium-grade raw materials and advanced production technologies to ensure the stoppers are durable and reliable.

How can I find a reliable supplier of rubber hole stoppers in China?

To find a reliable supplier of rubber hole stoppers in China, look for manufacturers with a good reputation, quality certifications, and a history of providing excellent customer service. You can check their product range, read reviews, and contact them directly to inquire about their production capabilities and pricing. Many reputable suppliers also offer samples and bulk orders, which can be beneficial for your business needs.