Royal Machine and Tool Corporation
Doing business as Royal Machine & Tool
At a glance
Employees20-99
In business since1952
HeadquartersBerlin, CT
US patents2
SAM.gov UEIMQCQF5MLYWD1
CAGE code4J955
Incorporated inCT
- hydraulic fixtures
- machining
- rebuilding
- chucks
- workholding devices
Named on the company’s own website, read JUL 29, 2026
Supplier designations
For Profit OrganizationManufacturer of Goods
Self-certified by the company in its SAM.gov registration
Patents
2 US patents granted 1996–2014, none of them in the five years to SEP 2025.
Machine tools 2
- Adjustable cartridge assembly for a workpiece-holding master jaw deviceUS 8,851,483 · granted OCT 7, 2014
- Self-centering indexing chuckUS 5,494,303 · granted FEB 27, 1996
Granted to Royal Machine and Tool Corporation · PatentsView (USPTO), data through SEP 30, 2025 · CC BY 4.0
Their plant
| Facility | City | State | Employees | Status |
|---|---|---|---|---|
| Royal Machine and Tool Corporation | Berlin | CT | 20–99 | ACTIVE |
Compiled from federal records — EPA, OSHA, SAM.gov and the U.S. Census — and from the company’s own website. Federal source data is public domain. Each plant’s page names the source of every field.


