Aerospace · Defense · Medical · Space
Machined for what
can't fail.
Complex components and assemblies for aerospace, defense, medical, and space — CNC machining, EDM, NADCAP welding, assembly, and inspection under one accountable partner.
- AS9100
- NADCAP Welding
- ITAR Registered
- CMMC Level 2 Compliant
- Baltimore, MD
- Since 1976
Programs we support
Markets we serve · Select a card for part families
Aerospace
Commercial and business aviation components where finish, traceability, and repeatability matter. We machine, weld, and assemble complex housings and structures to AS9100 controls.
Defense
Defense work is the core of our business. NADCAP-certified welding and ITAR-registered handling support demanding platforms including the F-35 and naval systems.
Space
Components and assemblies for space systems, where every part must survive launch loads and the orbital environment. Tight tolerances, traceability, and process discipline for hardware that can't be serviced once it's flying.
Medical
FDA-registered (3003393140) manufacturing of implants and device components with the finishes, documentation, and traceability the medical market requires.
Industrial
For complex industrial systems, we apply DFM to convert castings into machined "hog-outs" that cut lead time and cost while improving quality.
Core capabilities
Machining, EDM, welding & assembly — in-house.
CNC Milling
Horizontal & vertical, pallet-automated
Matsuura 5-axis, Okuma, and Fanuc Robodrill platforms with pallet automation for repeatable runs.
CNC Turning
Live tooling, twin-spindle, vertical
Multi-axis turning to 24″ chuck capacity with live tooling and C-axis for turned-milled parts.
Wire EDM
Makino HEAT · lights-out
Profiles and tolerances beyond conventional machining, including unattended production.
Welding & Fabrication
NADCAP certified
NADCAP-certified welding supporting critical platforms including the F-35 and medical devices.
Assembly, Test & Inspection
Turnkey, one-stop
Fasteners, marking, testing, and CMM/SPC inspection integrated with production.
Equipment · 35,000 ft² floor
Machine list
Milling & Machining Centers
- 5-Axis · Matsuura MAM72-35V (32 pallets / 320 tools)
- 5-Axis · Matsuura MAM72-35V (32 pallets / 240 tools)
- 5-Axis · Matsuura MAM72-63V (6 pallets / 240 tools)
- 5-Axis · Matsuura MAM72-63V 50-taper (6 / 150)
- (5) Fanuc Robodrill αD14MiA5 10k RPM · Tsudakoma 4th/5th
- Okuma 4000MV (6 pallets / 275 tools)
- 4-Axis · (4) Matsuura HMC (11 pallets / 210 tools)
- Matsuura H.Plus-500 (11 pallets / 240 tools)
- Matsuura 500V with rotary table
- (3) Bridgeport manual mills with DRO
Turning & Grinding
- Hardinge Quest 6/42 · 16″ between centers
- Hitachi Seiki #40 · 25″ chuck / 46″ BC
- Nakamura-Tome SC-450 · 15″ chuck
- Hardinge RS51MSY · twin 6″ chucks · live · C-axis
- Mori Seiki SL-25 · 12″ chuck · live tooling
- Okuma V80L vertical lathe · 24″ chuck
- Okuma LU3000EX-600 / LU3000EX-2SC-1000
- Hardinge HR42 Super Precision · GS51
- Grinding · Hostivar cylindrical · Harig / Chevalier surface
- Sunnen hone
EDM, Welding & Inspection
- Makino U6 HEAT EDM
- Makino U3 HEAT EDM with 4th axis
- Makino U6 HEAT Extreme EDM
- NADCAP-certified welding cell (TIG · arc · spot · braze)
- Assembly · heli-coil · PEM · bearings · bushings
- Laser & ink marking · rivet installation
- Pressure testing
- Zeiss CMM metrology
- Zeiss PiWeb SPC data analysis
Materials routinely processed
- Titanium
- Stainless Steel
- Aluminum
- Magnesium
- Composites
- High-temp alloys
Quality & metrology
Conformance you can verify.
Our quality system is built for procurement and supplier-quality teams: current certifications, calibrated metrology, first-article reporting, and full material and process traceability on every job.
AS9100
Aerospace QMS
Quality management system certified for aerospace manufacturing.
View certificate →AS13100
AESQ
Aerospace Engine Supplier Quality standard for advanced product quality.
NADCAP
Welding
Accredited special-process welding for critical applications.
View certificate →ITAR
M19567
Registered for International Traffic in Arms Regulations compliance.
View registration →CMMC Level 2 Compliant
Cybersecurity
Controls for protecting controlled defense data (CUI), built to NIST SP 800-171 and CMMC Level 2 requirements.
FDA Registered
3003393140
Registered facility for medical device component manufacturing.
JCP Certified
0025823
Joint Certification Program for access to controlled technical data.
CMM Inspection
Coordinate-measuring machines verify parts against print — dimensional conformance documented on every job.
Zeiss PiWeb SPC
Statistical process control converts complex measurement data into visual results for pinpoint accuracy and fast analysis.
First-Article Inspection
AS9102-style FAIR available to validate new parts and process changes before production release.
Material & Process Traceability
Full traceability from raw material through outside special processes and final inspection.
Calibration & Control
Calibrated gauging and controlled documentation keep measurement systems audit-ready.
Nonconformance & CI
Documented nonconformance controls and continuous improvement close the loop on every issue.
Do not transmit export-controlled drawings or technical data through unsecured channels. Contact us for a secure transfer method.
Who we are
Fifty years in, still machining the hard parts.
Privately held since 1976 — and family-owned today — Mac Machine marks its 50th anniversary in 2026, grown into a 35,000 ft² facility with 60+ skilled, non-union team members. We reinvest continuously in machine tools, inspection, and training — including a 2008 win at the Matsuura International 5-Axis Machining Competition.
American manufacturing · Mission-critical programs
Made to print, made in America.
Precision components and NADCAP-welded assemblies for frontline aerospace, defense, and space programs — machined in Baltimore by a workforce we train and invest in.
Selected work
Featured work & case study
Aerospace Casting Replaced with Hog-Out
A large aerospace OEM was struggling with casting delivery and quality. Mac Machine provided the solution: machine this complex component complete from solid billet, fully inspected, and delivered as one accountable package.
- Process
- CNC machining from solid billet
- Industry
- Aerospace
- Inspection
- Full inspection
- Status
- Production
Naval Housing Inlet
Design-through-production housing inlet for a naval platform.
Next Case Study
Another program highlight is on the way.
How work moves · 35,000 ft² · Baltimore, MD
A single flow from RFQ to on-time delivery.
- 01
RFQ & DFM
We review your drawing and flag manufacturability early.
- 02
Programming & CAM Verify
Toolpaths verified in software before any metal is cut.
- 03
Machining & EDM
2–5 axis milling, turning, and EDM on automated cells.
- 04
Welding & Assembly
NADCAP welding, fastening, marking, and pressure testing.
- 05
CMM & SPC
CMM inspection and Zeiss PiWeb SPC confirm conformance.
- 06
On-Time Delivery
Documented, traceable parts shipped to schedule.
By the numbers
Careers
Precision work that matters — and a place to grow into it.
Machinists, CNC programmers, welders, and quality inspectors. We train, we run apprenticeships, and we support local vocational programs.
Have a print that's giving other shops trouble?
Send it over. We'll review the drawing, flag manufacturability, and get you a quote.