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Description
vial seals
pharmaceutical-grade aluminum caps & combination closures
Our vial seals are factory-direct aluminum and aluminum-plastic combination closures for pharmaceutical vials - including lyophilised powder vials, injection solution vials, and multi-dose containers. Available in plain, flip-off, tear-off, electroplated, and lyophilisation configurations across all standard neck sizes. Multiple types, multiple combinations, custom orders supported.
13
MM
20
MM
26
MM
28
MM
32
MM
vial seal types
six vial seal configurations
one complete source
Plain Aluminum Vial Seal
Aluminum Cap
Standard single-piece aluminum vial seal, crimped onto the vial neck to form a tamper-evident, airtight closure. Compatible with all standard crimping equipment. Available in all five sizes.
lyophilised powder
injection solution
all sizes
Flip-Off Combo Vial Seal
Aluminum-Plastic Combination
Combination vial seal with an aluminum skirt and coloured plastic flip-off disc. The disc pops off cleanly before injection, exposing the rubber stopper without tools. Available in standard and custom colours.
flip-off disc
colour-coded
custom colour
Tear-Off Vial Seal
Pull-Ring Cap
Aluminum vial seal with an integrated pull ring for tool-free removal. Ideal for bedside use, rapid-access applications, and patient-administered products where speed and ease of opening matter.
pull ring
tool-free
multi-dose vials
Electroplated Vial Seal
Plated Sealed Cap
Premium vial seal with an electroplated mirror or satin finish for branded pharmaceutical and cosmetic injectable products. Enhanced corrosion resistance and high-quality visual appearance.
mirror finish
corrosion-resistant
branded products
Lyophilisation Vial Seal
Freeze-Dry Cap
Vial seal specifically engineered for freeze-dried products. Vented skirt slots allow moisture escape during the lyophilisation cycle; the seal seats firmly once the cycle is complete and pressure is restored.
vented skirt
lyo-compatible
biologics
Original Solution Vial Seal
API Vial Cap
Vial seals matched to bulk API and reference standard vials used in pharmaceutical manufacturing. Tight dimensional tolerances ensure consistent crimp integrity on high-volume automated filling lines.
API vials
tight tolerance
high-volume line
Our 4 Major Advantages
The size of the vial seals depends only on the outer diameter of the vial and the matching rubber stopper, and has nothing to do with the bottle capacity.
standard sizes
13, 20, 26, 28, 32 mm vial seals - covering the full range of pharmaceutical vial neck dimensions.
01
seal types
Plain, flip-off, tear-off, electroplated, lyophilisation, and original-solution vial seals all in stock.
02
custom combinations
Colour, finish, embossing, and mixed-type vial seal orders supported. OEM and private-label available.
03
factory direct
Source your vial seals directly from the manufacturer - consistent quality, competitive pricing, no intermediary.
04

custom vial seal service
colour matching
- plastic flip-off tops available in any RAL or Pantone colour for dose differentiation or brand identity.
embossing & engraving
- logos, text, or batch codes pressed into the vial seal surface.
mixed type orders
- combine multiple vial seal types and sizes in a single shipment.
sample service
- request sample vial seals of any type and size before committing to a production order.
Win-win cooperation
contact us for unlisted combinations-custom tooling available
logo raised & concave
logo print on plastic
logo print on aluminum
edge design
smooth & matte surface
paramenters of 13 & 20 & 26 & 28 & 32mm vial seals
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|
Item |
Diameter of the plastic part |
Thickness of the plastic part |
Inside diameter of the aluminum part |
Inside height of the aluminum part |
Total height |
|
ZB-11 |
13.2 ± 0.3 |
3.0 ± 0.2 |
11.3 ± 0.1 |
6.3 ± 0.3 |
7.5 ± 0.5 |
|
ZB-13 |
14.8 ± 0.3 |
3.0 ± 0.2 |
13.2 ± 0.1 |
6.3 ± 0.3 |
8.0 ± 0.5 |
|
ZB-20 |
21.8 ± 0.3 |
3.5 ± 0.2 |
20.0 ± 0.1 |
7.5 ± 0.3 |
8.5 ± 0.5 |
|
ZB-26 |
30.0 ± 0.3 |
3.5 ± 0.2 |
27.5 ± 0.1 |
9.0 ± 0.3 |
9.8 ± 0.5 |
|
ZB-28 |
31.0 ± 0.3 |
4.0 ± 0.2 |
28.5 ± 0.1 |
9.8 ± 0.3 |
10.8 ± 0.5 |
|
ZD-13 |
14.8 ± 0.3 |
3.0 ± 0.2 |
13.2 ± 0.1 |
6.3 ± 0.3 |
8.0 ± 0.5 |
|
ZD-15 |
17.5 ± 0.3 |
3.0 ± 0.2 |
14.9 ± 0.1 |
7.3 ± 0.3 |
8.5 ± 0.5 |
|
ZD-20 |
21.8 ± 0.3 |
3.5 ± 0.2 |
20.0 ± 0.1 |
7.5 ± 0.3 |
7.5 ± 0.3 |
|
ZD-32 |
35.0 ± 0.3 |
4.0 ± 0.2 |
32.3 ± 0.2 |
13.5 ± 0.3 |
13.7 ± 0.5 |
that's our services
We supply vial seals direct from our factory with consistent quality assurance on every batch. Minimum orders are flexible.
Send us your size, type, and volume - we will respond with a quotation within 24 hours.

Excellent expansion capability
Good airtightness


Material stability
Rich in color

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