Magnetic Caps for Septa
Magnetic caps are designed for autosamplers, such as CTC’s Pal system, that use a magnet to move vials. The cap’s center hole supports laboratory testing, but still provides enough surface area for the magnet to securely hold an autosampler vial that’s been filled.
Advantages of Open Top Caps
Specialty Silicone Products (SSP) provides open-top caps that are attracted to the strong grip of autosampler magnets for greater processing efficiency and reduced operator handling. We also provide cap mats if you need them.
Magnetic Screw Caps and Magnetic Crimp Caps
SSP offers these and other products.
- 11mm Crimp Caps
- 18mm Magnetic Screw Caps
- 18mm Screw Caps
- 20mm Bi-Metal Crimp Caps
A crimp cap seals a container by compressing a septum between the bottle rim and a metal cap using a crimping tool, while a screw cap seals by screwing onto threads on the bottle neck, creating a seal through mechanical pressure applied by twisting the cap; essentially, a crimp cap requires a special tool to seal, while a screw cap can be tightened by hand.
Ultra Bleed Silicones for Clean, Pure Septa
Since most autosamplers using magnets are running analysis that are sensitive to siloxane peaks, all the PTFE/Silicone septum utilize our Ultra Low Bleed technology ensuring your results are not going to have siloxane interference.
EasyPierce Technology
We also use very soft, easy piercing septa in the 18mm cap for SPME applications where very thin, fragile needles are used.
EasyPierce™ septa support multiple piercings with a needle or a syringe. These resealable septa are easy to penetrate but remain leak-free after repeated punctures in applications such as laboratory diagnostics and chemical packaging. These elastomeric products also avoid fragmentation that can contaminate samples.
Find Laboratory Products
See the product tables below for more information regarding SSP’s offerings. All our septa are made in the USA at our Ballston Spa, New York facility.
Magnetic Caps
| Product Description | Product ID |
|---|---|
ST2152 .050" Thick, White PTFE/ Translucent Blue Silicone - Ultra Low Bleed, Inserted into an 18mm Magnetic Aluminum Screw Cap. Bag of 100 | 0905-1812-C |
ST2152 .050" Thick, White PTFE/ Translucent Blue Silicone - Ultra Low Bleed, Inserted into an 18mm Magnetic Aluminum Screw Cap. Bags of 1000 | 0905-1812-M |
1214-1207-C. ST535DF .040" Thick, Red PTFE/ White Silicone/ Red PTFE Inserted into an 11mm Silver Aluminum Magnetic Crimp Cap. Bags of 100 | 1214-1207-C |
1214-1207-M. ST535DF .040" Thick, Red PTFE/ White Silicone/ Red PTFE Inserted into an 11mm Silver Aluminum Magnetic Crimp Cap. Bags of 1000 | 1214-1207-M |
1490-1207-C. ST1603 .040” Thick, Clear PTFE / Orange Silicone inserted into an 11mm Silver Aluminum Magnetic Crimp Cap. Bags of 100 | 1490-1207-C |
1490-1207-M. ST1603 .040” Thick, Clear PTFE/ Orange Silicone inserted into an 11mm Silver Aluminum Magnetic Crimp Cap. Bags of 1000 | 1490-1207-M |
1700-1207-C. ST2300 .040" Thick, Red PTFE/ White Silicone Inserted into an 11mm Silver Aluminum Magnetic Crimp Cap. Bags of 100 | 1700-1207-C |
1700-1207-M. ST2300 .040" Thick, Red PTFE/ White Silicone Inserted into an 11mm Silver Aluminum Magnetic Crimp Cap. Bags of 1000 | 1700-1207-M |
ST2373 ULB .125” Thick, Natural PTFE/ White Silicone - Ultra Low Bleed Inserted into a Blue 20mm Bi-Metal Magnetic Cap . Bags of 100 | 1893-2201-C |
ST2373 ULB .125” Thick, Natural PTFE/ White Silicone - Ultra Low Bleed Inserted into a Blue 20mm Bi-Metal Magnetic Cap . Bags of 1000 | 1893-2201-M |
2304-1207-C. ST2300 ULB .040” Thick, Red PTFE/ White Silicone - Ultra Low Bleed Inserted into an 11mm Silver Aluminum Magnetic Crimp Cap. Bags of 100 | 2304-1207-C |
2304-1207-M. ST2300 ULB .040” Thick, Red PTFE/ White Silicone - Ultra Low Bleed Inserted into an 11mm Silver Aluminum Magnetic Crimp Cap. Bags of 1000 | 2304-1207-M |
SSP2201-B. Blue 20mm Bi-Metal Magnetic Cap in Bulk. SeptaSource is located in Ballston Spa, New York. Proudly Made in USA. | SSP2201-B |
Blue 20mm Bi-Metal Magnetic Cap. Bags of 1000. SeptaSource is located in Ballston Spa, New York. Proudly Made in USA. | SSP2201-M |