4 6 7 8 9 10 12 16 20 25 30 different sizes silicone cap rubber cap silicone stopper rubber stopper hole rubber plug

4 6 7 8 9 10 12 16 20 25 30 different sizes silicone cap rubber cap silicone stopper rubber stopper hole rubber plug

 

Product Description

Rubber stopper

 

A rubber stopper is a small, tapered plug used to seal the openings of test tubes, flasks and other laboratory glassware. Stoppers made of cork are also available for this purpose. However, rubber stoppers are preferable for applications that require a tighter seal or a greater degree of chemical resistance.

Purpose

The primary purpose of a rubber stopper is to prevent a gas or liquid from escaping its container during a scientific experiment. Rubber stoppers can also prevent the contamination of samples by protecting the contents of laboratory glassware from air. Last, the use of rubber stoppers allows experimenters to shake or mix solutions without spilling them.

Shape

The standard stopper is cylindrical in shape, with a tapered bottom end. Some rubber stoppers contain one or two holes to allow the insertion of pipettes, tubing or test equipment (e.g., a thermometer).

Pipe end caps all sizes

We are manufacturer of pipe caps for pipes,tubes,bar,rops,threads…

Size

Rubber stoppers typically range in diameter from size 000 (0.5 inches) to size 16 (5 inches) at the top. The tapered bottom end ranges from five-sixteenths to 3.5 inches. Smaller stoppers are appropriate for test tubes and similar glassware; larger stoppers are appropriate for flasks and beakers.

Properties

The main properties that make rubber suitable for use as a laboratory stopper are its elasticity, chemical resistance and impermeability. Its elasticity allows it to form a tight seal against the inside of the glassware. Its chemical resistance makes it safe for use with many corrosive and otherwise reactive compounds. Its impermeability helps to prevent the escape of liquids and gases from the container.

 

Part Name	1/2" 1/4" 1"T shape soft silicone rubber plugs stoppers with a groove black 1 inch T shape silicone plugs  black rubber hole plugs
Service	OEM OR ODM
Part Material	Silicone or rubber (NR, NBR,SBR,BR,IR,CR,EPDM,IIR,Fluoro rubber,SIR,PU,ACM,CO,etc)
Material Hardness	Silicone about 5~90 Shore A; rubber about 10~90 Shore A
Size	Customized
Shape	Customized
Color	Customized according to Pantone colors
Appearance	as customer’s requirement
Drawings	2D OR 3D acceptable
Temperature Resistance	-40~300 degree centigrade
Tolerance	0.05mm
Technology	Hot pressing molding or injection Molding
Second Processing	Vulcanizing/ Deburring/Silk-screen/Carving/printing
Quality control	internal QC control
Part Feature	1.Oxidation , Chemical,oil, acid ,alkali , weather resistance
	2. colorful ,Anti-aging,good flexibility, good elasticity
Food grade material	FDA or LFGB
MOQ:	Amount : More than USD 500/each part(depends on specific part)
Shipping ways	1. By sea from Shenzhen port or Guangzhou port. 2. By express: DHL/UPS/FEDEX ,etc 3. By air
Package	Normally PE bag+carton or customized as customer’s request
Trade Term	Ex-works; FOB Shenzhen/Guangzhou ; CIF
Payment Term	Sample mold: 100% prepaid,MP Mould: 50% deposit by T/T in advance, balance 50% paid after samples approval
	Goods: 50% deposit, 50% before shipment
	T/T, L/C, Western Union, PAYPAL
Lead time	5~10 days for first article,10~25 days for MP parts (depends on part structure )
Specification	Confirm to ISO-9001 and ROHS Directive Compliant Green Products
Application field	1. Electron compon high quality custom different size rubber stopper/rubber plug for hole ents
	2. Medical equipment
	3. Home appliance
	4. Mechanical equipment
	5. Office facilities
	6. Aviation
	7. Construction
	8. Automobile

 

Production Flow

Advantages

Shenzhen Anconn Rubber & Plastic Industrial Limited, is a reliable silicone, rubber, and plastic manufacturer in China, Specialized in silicone/rubber stoppers, silicone/rubber tubes, rubber feet, silicone keypads, rubber handles, suction cups, grommets, seals, O rings, protective covers, rubber mounts, rubber foam items, EVA foam items , plastic parts and other various items, in our company you can find the products to satisfy your various demands.

Since establishment in 2014(we have in this field for 15 years), we devoted ourselves to produce high quality rubber and plastic products, which was realized by adopting best raw materials (meet SGS, Rohs, FDA and Reach standards), strict production processes, and continuous R & D investment.

When other companies are doing trade business, we don’t follow, we have our own factory to produce molds and products, we don’t produce molds and products by third parties. We are factory, which direct to customers, this is our advantages. We also have an engineer team which can support our customers who can not offer 2D or 3D drawings. We offer fast services and more advantage prices to support and help your customers.

 

What is our consistent adherence ?

 

“ Quality first & considerate service” is never a decorative slogan in Anconn, this is the conduct code throughout every aspect of each Anconn staff’s daily work. We focus on what customers really concern.

 

Just because this principle, Anconn already cooperated with many partners from more than 100 countries, and help our customers to win the competition.

 

We know there must be another you who understand our insistence on quality and service. Admire our honesty and willing to build long term cooperated relationship

 

May be you have some questions

1) Where is the rubber comes from ?

rubber comes from a milky white juice which some trees and plants have instead of sap. This liquid, called latex, can be found in the roots, stems, branches, bark, leaves, and fruit of over 400 different plants. Most latex, however, comes from the inner bark of the hevea, or rubber tree

To get the latex, workers cut narrow slits in the bark of the rubber tree at daybreak, for the latex flows easily when the air is still cool. The latex is then allowed to drip into cups attached to the tree for three hours.

The latex, which is 2/3 water, is then taken to a rubber factory quickly, for it spoils easily. There, it is heated and mixed with acid. This process causes the latex to coagulate, or form solid curds. These curds are crude rubber.

2) What are the colors your factory can make ?

We can make any colors on the pantone cards, what’s you should do is telling me the color numbers you want, then our factory will match the colors for you according to your requirements.

3) How can you make sure the dimensions are correct of the products ?

We have thickness gauges, hardness testers, callipers, tension testers and other instruments to make sure each parts of your products are correct, also we use our CNC machines to produce molds, the precision can reach to 0.01 mm.

1) Can your factory delivery goods on time ?

Yes, we have a very big mold factory, we have 30 Machines and 20 technical staffs to make molds

So we can finish your mold within 5 days after receiving your deposit.

We have 50 general workers to produce products after molds are ready, they work 3 shifts, it is never stop to produce products, so we are confident to finish any order on time.

 

Packaging & Shipping

 

Business: Development & production for silicone, rubber and plastic accessories.

Custom make: silicone/rubber stoppers, tubes, feet, keepads,

handles, suction cups, grommets, seals, O rings, protective 

covers, shock absorbers, and other various items.

 

Good luck !!!