Large Rubber Stoppers

2021-12-31 · Stoppers & Plugs

Large Rubber Stoppers

Durable and high-quality rubber stoppers are compatible with broad applications. We are known for producing versatile large rubber stopper solutions that are primarily utilized as grippers, pipe stoppers, sticky feet for the platform, mechanical stop, tube plugs, and bumpers. Depending on the model we make, some rubber stoppers also work as vibration mounts, door stoppers, clamps, and paint masks. In addition to that, rubber stoppers adjust into various laboratory glassware items like boiling flasks, test tubes, and more. We can assure you that our runner corks are sturdy, durable, and lasts longer as they are made of premium quality materials. They can fit tightly in their place without moving even slightly.

Another factor that can differentiate our company-made rubber stoppers from other products is that we use different materials. Apart from natural rubber, we also rely on various types of synthetic rubber materials. A few substances we use to make rubber stoppers are natural rubber, nitrile rubber (NBR), urethane, silicone rubber (SiR), styrene-butadiene rubber (SBR), Viton, ethylene propylene diene monomer rubber (EPDM), and Neoprene. These rubber stoppers work as a better seal for vulnerable equipment and can withstand higher temperatures.

In general, our solid rubber stoppers are utilized for wine and beer appliances. In addition to that, you can use these large rubber stoppers for different endeavors in and around your home. They are available in various sizes from size 000 to size 15. We generally manufacture one-hole large rubber stoppers at a single time as we get bulk orders for them from our medical clients. We make one-hole laboratory stoppers in both regular and custom sizes as well. You can also find two-hole rubber stoppers in our product list. These are relatively sturdy and lab-grade stoppers, and you can safely use them to close jars and test tubes that comprise fluids.

Stopper & Plug Size Catalog

Compare four stopper profiles and check the selected part dimensions against your opening and available depth. Each profile has its own drawing and dimension meanings.

RST T-Shaped Plugs

Match stem diameter A, flange diameter B, stem length C and flange thickness D. E refers to the underside recess; use the selected row and approved drawing to confirm the actual profile.

T-shaped stopper — original A, B, C, D and E dimensions — A recessed RST variant is illustrated. The head remains closed. Check E and the approved section for the selected part.

Rubber Silicone Plugs(T-shaped-RST) — product view — Illustrative product rendering. Refer to the selected part drawing and table for dimensions.

PartNo.	A（mm）	B（mm）	C（mm）	D（mm）
RST2.5-5.5-5.3	2.5	5.5	5.3	2
RST2.7-5.5-5	2.7	5.5	5	2
RST3-4.3-4.5	3	4.3	4.5	0.8
RST3-7-7	3	7	7	2.2
RST3.3-6.5-6	3.3	6.5	6	1.5
RST3.5-6.5-6	3.5	6.5	6	2
RST3.8-7-10.5	3.8	7	10.5	1.5
RST3.8-7-7	3.8	7	7	1.5
RST3.8-7-6	3.8	7	6	1.5
RST4-7.5-6	4	7.5	6	2
RST4-9.5-7	4	9.5	7	2.5
RST4.3-8-6	4.3	8	6	1.5
RST4.5-7.5-6	4.5	7.5	6	2
RST4.8-6.8-3.6	4.8	6.8	3.6	0.9
RST4.8-9-7	4.8	9	7	1.5

RSA Tapered Corks

Compare large-end diameter A, small-end diameter B and Height, in mm. The mating bore and required seating depth determine where the taper contacts the opening.

Tapered cork — Diameter A, Diameter B and Height — Tapered profile reference. Use Diameter A, Diameter B and Height from the selected row.

Rubber Corks(Tapered-RSA) — product view — Illustrative product rendering. Refer to the selected part drawing and table for dimensions.

Part No.	Diameter A	Diameter B	Height	Colour	Materials
RSA1.6-0.4-15.9	1.6	0.4	15.9	Transparent	Silicone
RSA2-0.5-19.1	2	0.5	19.1	Transparent	Silicone
RSA3.2-0.8-15.9	3.2	0.8	15.9	Transparent	Silicone
RSA3.2-1.6-15.9	3.2	1.6	15.9	Transparent	Silicone
RSA4.8-1.6-15.9	4.8	1.6	15.9	Transparent	Silicone
RSA4.8-1.6-19.1	4.8	1.6	19.1	Transparent	Silicone
RSA5.5-1.2-38.1	5.5	1.2	38.1	Transparent	Silicone
RSA6.4-3.2-19.1	6.4	3.2	19.1	Transparent	Silicone
RSA6.4-3.2-25.4	6.4	3.2	25.4	Transparent	Silicone
RSA8.7-4.8-15.9	8.7	4.8	15.9	Transparent	Silicone
RSA8.7-4.8-25.4	8.7	4.8	25.4	Transparent	Silicone
RSA9.2-6.2-12.8	9.2	6.2	12.8	Transparent	Silicone
RSA9.5-6.5-18.5	9.5	6.5	18.5	Transparent	Silicone
RSA11-8.5-17.5	11	8.5	17.5	Transparent	Silicone
RSA11.5-6.5-25	11.5	6.5	25	Transparent	Silicone

RSB Undercut Plugs

Compare neck diameter A, flange diameter B, flange-to-lip distance C and flange thickness D. Check panel thickness and rear clearance. E refers to the underside recess.

Silicone Plugs(Undercut-RSB) — product view — Illustrative product rendering. Refer to the selected part drawing and table for dimensions.

Part No.	A (mm)	B (mm)	C (mm)	D (mm)	E (mm)
RSB2.5-6-3	2.5	6	3	1.5	0
RSB3-7-3	3	7	3	2	0
RSB3.5-7.5-3	3.5	7.5	3	2	0
RSB3.6-7.5-6	3.6	7.5	6	2	0
RSB4-8-3	4	8	3	2	0
RSB4.5-8.5-3	4.5	8.5	3	2	2
RSB5-9-3	5	9	3	2	2.5
RSB5.5-9.5-3	5.5	9.5	3	2	3
RSB6-10-4	6	10	4	2	3.5
RSB6.5-10.5-4	6.5	10.5	4	2	4
RSB6.5-12-8	6.5	12	8	2	0
RSB6.7-8.7-5.3	6.7	8.7	5.3	1.3	4.1
RSB7-11-4	7	11	4	2	4.5
RSB7.5-11.5-4	7.5	11.5	4	2	5
RSB8-12-4	8	12	4	2	5.5

RSD T-Shaped Stoppers

Compare stem diameter A, flange diameter B, stem length C and head thickness D, in mm. Check the seating surface and available depth as well as the hole diameter.

T-shaped stopper — original A, B, C and D dimensions — Solid T-shaped profile reference. Dimensions A–D follow the selected part drawing.

Silicone Stoppers(T shape) — product view — Illustrative product rendering. Refer to the selected part drawing and table for dimensions.

Part No.	A (mm)	B (mm)	C (mm)	D (mm)	Colour	Materials
RSD2.7-5.5-5	2.7	5.5	5	2	Black, White	Rubber, Silicone
RSD3-7-7	3	7	7	2.2	Black, White	Rubber, Silicone
RSD3.3-6.5-6	3.3	6.5	6	1.5	Black, White	Rubber, Silicone
RSD3.5-6.5-6	3.5	6.5	6	2	Black, White	Rubber, Silicone
RSD3.8-7-6	3.8	7	6	1.5	Black, White	Rubber, Silicone
RSD4-9.5-7	4	9.5	7	2.5	Black, White	Rubber, Silicone
RSD4.3-8-6	4.3	8	6	1.5	Black, White	Rubber, Silicone
RSD4.5-7.5-6	4.5	7.5	6	2	Black, White	Rubber, Silicone
RSD4.8-9-7	4.8	9	7	1.5	Black, White	Rubber, Silicone
RSD5-12-8	5	12	8	2.8	Black, White	Rubber, Silicone
RSD5.3-9.5-7	5.3	9.5	7	1.5	Black, White	Rubber, Silicone
RSD5.5-8.5-7	5.5	8.5	7	2	Black, White	Rubber, Silicone
RSD5.8-10-8	5.8	10	8	2	Black, White	Rubber, Silicone
RSD6-13-8	6	13	8	3.5	Black, White	Rubber, Silicone
RSD6.3-10.5-8	6.3	10.5	8	2	Black, White	Rubber, Silicone

Need a different fit? Share the opening dimensions, mating profile and intended use for a custom size.

Discuss Your Requirements

Product specifications

Product form: Removable closure fitted inside an opening
Material options discussed: Silicone, NBR, EPDM, chloroprene rubber (CR), FKM, natural rubber / latex and SBR. Choose one formulation for the actual contact and loading conditions.
Application focus: Laboratory vessels, laboratory flasks, test tubes, wine bottles and brewing equipment. Size the part against the selected assembly.
Dimensions to confirm: Opening diameter, closure profile, insertion depth and exposed grip. Match these to laboratory vessels and laboratory flasks.
Installation envelope: Define the full mating outline and the handling clearance; confirm local support and compression across the larger area.
Contact conditions: Wine and beer: define concentration, temperature and contact time, then check compatibility with the chosen compound.
Seating check: Check the sealing contact around the opening and the force needed for insertion and removal.

Need a quote or a custom part?

Send your requirements, drawings or samples to discuss standard and custom silicone rubber parts.

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Large Rubber Stoppers

Large Rubber Stoppers

Stopper & Plug Size Catalog

RST T-Shaped Plugs

RSA Tapered Corks

RSB Undercut Plugs

RSD T-Shaped Stoppers

Product specifications

Need a quote or a custom part?

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