We build seals.
In Cherry Hill, by hand.
CinchSeal Industries has been building self-adjusting rotary shaft seals from the same shop floor in Cherry Hill, New Jersey since 2000. No outsourcing, no offshore assembly, no marketing-team product specs. The engineers who designed the seal answer the phone when you call.
01The principle
One simple idea, refined for 25 years.
The original CinchSeal idea, written on a napkin in 2000, was that a rotary shaft seal should take up wear automatically. A maintenance technician shouldn't have to tighten a gland every shift. An operator shouldn't have to watch for the leak.
The result was the self-adjusting, air-purged contact seal we still build today. Every series in our catalog — from the carbon-steel 7500 to the AST60 cartridge — is a variation on that principle, tuned for specific service.
We have not added a single pricing tier. We have not added a generic catalog page. We have not introduced a seal we wouldn't put on our own equipment.
02Timeline
What we've shipped, year by year.
- 2000
Founded in Cherry Hill
CinchSeal opens with the first 7500 Series — built for screw conveyors at a New Jersey grain handler that had given up on rope packing.
- 2005
7800 CEMA stainless launches
Sanitary food-and-pharma variant introduced after dairy customers asked for a CEMA-pattern seal that would hold through daily caustic CIP.
- 2011
9700 Series for chemical service
Heavy-duty 316L bar-stock seal launches; first installs on chlorinated solvent agitators at a US specialty-chemical producer.
- 2017
AST60 cartridge seal
Drop-in cartridge for ANSI B73.1 process pumps released — answers a long-standing OEM-pump-fleet sealing problem with a single SKU.
- 2022
Lithium-ion gigafactory work
9700-WC and AST60-FFKM emerge as the de-facto seal of choice for cathode-slurry mixers and lithium-hydroxide pumps in the new US gigafactory cohort.
- 2025
12,000+ documented installs
CinchSeal seals installed in 1,200+ plants across all 50 US states and 14 countries.
03Quality & certifications
The paperwork is part of the seal.
- FDA-compliant elastomer compounds (21 CFR §177.2600)
- USDA accepted materials for direct dairy / meat / poultry contact
- 316 / 316L stainless steel wetted parts on sanitary lines
- PED 2014/68/EU compliant pressure vessels (export models)
- ATEX-rated air purge regulators on hazardous-area variants
By the numbers
The shop in numbers.
- Years in business
- 25+
- Documented installs
- 12,000+
- Plants served
- 1,200+
- States & countries
- 50 + 14
- Product series
- 07
- Engineers on call
- 06
Workshop
1820 East Marlton Pike, Suite 6
Cherry Hill, NJ 08003
Direct line
(856) 555-0140
Mon–Fri · 8:00 AM – 5:30 PM ET
Engineering desk
engineering@cinchseal.example.com
Sized recommendations within 1 business day
Talk to an engineer
The people who designed the seal will answer your call.
Our engineers in Cherry Hill have built every seal we ship. Send your application and you'll hear from someone who has solved the problem before — not a sales rep with a script.