Precision CNC Machine Shop in Los Angeles
Ten vertical and five 5-axis machining centers cutting aluminum, stainless, titanium and Inconel. Standard production tolerances of ±.0005″ on turned diameters and ±.001″ on milled features, with critical features held to ±.0001″ where the print requires it.
An established precision CNC manufacturer in Los Angeles — 35+ machines, a full in-house inspection lab, and AS9100D systems behind every aerospace, defense and medical component we ship.
Looking for superior CNC machined parts?
We are your one-stop source for primary and secondary operations of premium machined parts. With our technical capacity and highly skilled staff, we produce parts that are unsurpassed in performance, durability and quality — and have contributed to the success of our clients since 1986.
RJ Enterprises is AS9100D and ISO 9001:2015 certified under DNV, with the current certificate available to download on our Quality page. Programming, machining and inspection all happen in the same building in Gardena, California.
As a CNC machine shop in Los Angeles, we serve customers across the South Bay — Gardena, Torrance, Carson, El Segundo and Long Beach — with local pickup, delivery and walk-the-floor print reviews.
Standard production tolerances of ±.0005″ on turned diameters and ±.001″ on milled features, with critical features held to ±.0001″ where the print requires it. Materials run from aluminum and stainless through titanium, Inconel®, alloy steels, copper, brass and engineering plastics — inspected in-house and shipped Dock-to-Stock.
Six disciplines.
One uncompromising standard.
CNC Milling
Ten verticals — Okuma 5-axis, Brother Speedio, Haas and Fadal.
5-Axis Machining
Five 5-axis centers — complex contours in fewer setups.
Swiss Turning
Sixteen Citizen, Miyano and Tsugami Swiss-type lathes.
CNC Turning
Eight turning centers — Okuma, DMG MORI, Takisawa, Haas.
Inspection & Metrology
ZEISS ACCURA and Mitutoyo CMMs, four Keyence IM systems — in-house.
CNC Tooling
Custom fixturing and tooling engineered in-house.
Thirty-five machines.
One uninterrupted line of sight from drawing to dock.
Equipment Inventory →Regulated industries. One quality system.
Aerospace Machining
Structural brackets, fittings, manifolds and contoured housings machined under an AS9100D quality system, with first-article inspection and material traceability on every release.
Medical Device Machining
Swiss-turned shafts, bone screws, connector bodies and milled instrument components, machined to tight diametral tolerance with full lot traceability.
Defense Machining
Turned-and-milled housings, mounting hardware and subsystem components for defense customers, with laser marking, coordinated finishing and a single documentation package per shipment.
Oil & Gas Machining
Turned and milled components for wellhead, valve and downhole tooling applications, in alloy steel and corrosion-resistant stainless, with material certification on every lot.
Trusted by manufacturers across a hundred-plus industries.
Aerospace, medical, automotive, defense, oil & gas, motorcycle suspension, lawn & garden, computing, and consumer electronics — from Fender Guitars to oil drilling services in Texas.
Selected Projects →
Anonymized examples of demanding work.
Material, process, equipment and inspection method for representative aerospace, defense and medical parts — described without identifying the customer or exposing proprietary information.
Read Case Studies →Describe your part.
See the process path.
FirstChip is an in-house tool we built to show, in a few clicks, how a part would move across our floor — which machines, in what order, and how it would be inspected. It is a conversation starter, not a quote, and it takes no drawings or controlled technical data.
- 01Pick the part family
Geometry, sub-type, material and finish.
- 02Set the production context
Industry, tolerance class, quantity, regulatory.
- 03Process path mapped
Specific RJ machines, sequenced step by step.
- 04Move to a formal RFQ
Hand the spec to estimating and talk to a person.