Machined for
flight. defense. precision. generations.
Sunset Industries is a contract manufacturer for your precision CNC machining needs. Your components run efficiently through our 2- to 6-axis lathes, multi-axis mill-turn centers and 3- to 5-axis mills, with grinding, broaching, EDM, managed special processes and assembly — built to your specifications under an AS9100D quality system. Most of what we make flies, and the same discipline goes into every part, whether it ends up in an aircraft fuel system or a piece of industrial equipment. Family-owned and operated since 1959.
Built to hold tolerance.
Run to hold schedule.
We specialize in simple to complex turned and prismatic parts in aluminum, stainless, alloy steels and heat-resistant and exotic alloys — planned to run efficiently and under control, processed through a proven special-process network, and delivered with the certification and inspection package your purchase order calls for. If your part fits within an 8-inch cube, we can evaluate it for manufacturing. We are a medium-mix, low-to-medium-volume shop: typical lot sizes run from 10 to 2,000 pieces.
Engineering & Manufacturability
We build to your print, and we read it like engineers: tolerances, datum schemes, material and finish callouts are reviewed before we quote. If you control the design and want manufacturability feedback, we will tell you where a small change would lower cost or risk without touching function.
- DFM review
- Mastercam CAM programming
- Fixture & tooling design
- Casting & forging machining
Multi-Axis Turning
Our core competence. B-axis multitasking centers with sub-spindles, Y-axis and live tooling complete front- and back-side work — turning, milling, cross-drilling, off-center features — in a single handling. Bar-fed to 2.75 in. diameter; chucked and slug work beyond that.
- B-axis turn-mill
- Sub-spindle transfer
- Y-axis & live tooling
- Bar-fed production
- Mastercam programming
- High-efficiency material removal & toolpathing
3-, 4- & 5-Axis Milling
Vertical machining centers with 3-, 4- and 5-axis capability, high-speed spindles to 24,000 RPM, high-pressure through-spindle coolant and in-machine probing for housings, manifolds, plates and cast or forged parts that need multiple faces held to one datum.
- 3-, 4- & 5-axis machining
- In-process probing
- Robot automation
- Thin-wall & cast parts
- High-speed aluminum
- Mastercam programming
- High-efficiency material removal & toolpathing
Managed Special Processes
One purchase order, one accountable supplier. We route parts through your approved processors, or select from the network of special-process houses we have worked with for years: heat treat, anodize and conversion coating, passivation, plating, EDM, grinding and lapping, dry-film lubricants, thermal-spray coatings, NDT and more.
- Heat treat & precipitation hardening
- Anodize · chem film · passivate
- FPI · mag particle · XRF
- Grind · lap · wire EDM
Assembly & Value-Added
A dedicated assembly area for sub-assemblies and matched sets — pressed bearings, inserts, seals and hardware — plus deburring under magnification, part marking and kitting, so what arrives is ready to install.
- Sub-assemblies & matched sets
- Bearing & insert installation
- Precision deburr
- Marking & kitting
Inspection & Traceability
First Article Inspection Reports to AS9102 on an automated CMM, vision and optical comparator inspection, calibrated gaging traceable to national standards, and a Certificate of Conformance with full material and process traceability on every shipment.
- FAIR / AS9102
- Automated CMM
- Automated vision inspection
- Gage Track
- Comprehensive gage library
- Certified-supplier delegation
- Mill-cert traceability
Aluminum alloys
High-speed milling and turning of wrought bar, plate and extrusion, plus finish machining of sand and investment castings. Routinely anodized (Type II and hard coat, including PTFE-impregnated), chem-filmed and penetrant-inspected through approved processors.
- 2024 — T351, T4, T851 (AMS 4120, AMS-QQ-A-225/6)
- 6061 — T6, T651, T6511 (AMS 4117, AMS-QQ-A-200/8, AMS-QQ-A-225/8)
- 7075 — T6, T651 (AMS 4122, AMS 4123)
- 5086-H111
- A356 / 356-T6 castings
- Extruded profiles cut and finished to length
Stainless and precipitation-hardening steels
The largest share of our stainless work is in the martensitic and PH grades used for fuel-system and hydraulic hardware — hardened, passivated and often chrome- or dry-film-coated after machining.
- Austenitic: 302, 303 (AMS 5640), 304 / 304L (AMS 5639), 316 / 316L (AMS 5648, AMS 5653), 321 (AMS 5645), 347 (AMS 5646)
- Martensitic: 410, 416 (AMS 5610), 418 Greek Ascoloy (AMS 5616), 431 (AMS 5628), 440C (AMS 5630)
- Precipitation-hardening: 13-8 Mo (AMS 5629), 15-5 PH (AMS 5659), 17-4 PH (AMS 5643 / AMS 5604, H900–H1150 conditions)
- Nitronic 50 (AMS 5764)
Nickel- and cobalt-base superalloys
Engine-section and hot-gas-path components in heat-resistant alloys — slow, rigid cuts with the tooling and work-holding the materials demand, and 100% penetrant inspection where the print calls for it.
- Inconel 625 (AMS 5666)
- Inconel 718 (AMS 5662)
- Hastelloy X (AMS 5754)
- A286 (AMS 5732, AMS 5737)
- L-605 / Haynes 25 (AMS 5759)
- Stellite 6B (AMS 5894)
Titanium alloys
Titanium is within our AS9100 certified scope and is machined with the same controlled-feed, high-pressure-coolant discipline we apply to the nickel alloys.
- Ti-6Al-4V (AMS 4928 bar, AMS 4911 plate)
- Commercially pure grades on request
Alloy and carbon steels
Bearing, gear, shaft and housing work in through-hardening and case-hardening grades, with heat treat, black oxide, phosphate and plating managed through approved sources.
- 4130 (AMS 6348, AMS-S-6758), 4140 / 4140H (AMS 6382), 4340 (AMS 6415)
- 52100 bearing steel including VIM-VAR (AMS 6440, AMS 6444)
- 8620 (ASTM A322)
- Nitralloy 135M (AMS 6471)
- 1018, 12L14 (ASTM A108)
Tool steels
Wear components and tooling machined soft, heat treated in vacuum or controlled atmosphere, and finish ground or lapped to size.
- H11, H13 (hardened to 50–54 HRC)
- S7 (hardened to 52–56 HRC)
- A2 (ASTM A681)
Copper alloys
- Beryllium copper (AMS 4534)
- C17510 beryllium-nickel copper
- 360 brass
- Bronze and sintered bronze
Bar stock
Most of what we turn starts as bar — bought certified to the specification on your print, with mill certs traceable to the heat. Bar-fed to 2.75 in. diameter; sawn slugs and chucked work beyond that.
- Round, hex and square bar in the alloy families above
- Bar-fed production to 2.75 in. diameter
- Sawn slugs and blanks for chucked work
- Customer-furnished material on request
Extrusions
Extruded profiles cut to length and finish-machined — the extrusion supplies the section, we hold the features, tolerances and finish the print calls for.
- Aluminum extrusions, including 6061-T6511
- Cut-to-length and finish-machined profiles
- Customer-specified or customer-furnished profiles
Castings and forgings
Finish machining of customer-furnished or Sunset-sourced castings and forgings under foundry-control and production-casting quality flow-downs — including datum-target fixturing, wall-thickness verification and magnetic-particle or penetrant inspection.
- Aluminum sand and investment castings (A356-T6, A356.0-T61)
- Steel and stainless castings
- Steel forgings and cover forgings
- Powder-metal and pre-hardened blanks
Engineering plastics
- Polycarbonate
- PTFE
- Other machinable polymers on request
Representative alloys we have machined to AMS / ASTM / MIL specification — not an exhaustive list. If your material isn't here, ask.
Multi-axis machining.
One shop, one standard.
A floor built around done-in-one turning and milling, supported by 2- to 9-axis CNC machines, a dedicated inspection department and an assembly area — all under one roof in Mentor, Ohio, continually re-equipped, with room on the site to expand as new programs arrive.
Turning & Turn-Mill core
| B-axis multitasking centersDN Solutions MX / DNX-series with sub-spindles, 40–60 tool magazines, lower turrets and laser tool monitoring — complete complex parts in one handling |
| Y-axis & live-tool turning centersDoosan Puma SY and Mori Seiki NL / CH-series cells for off-center milling, cross-drilling and back-working |
| Bar-fed production lathes2-axis bar-fed lathes for higher-volume turned hardware up to 2.75 in. bar |
| Swiss machiningWe support your Swiss-type turning needs through our machining partners — one purchase order, managed by us |
Milling 3, 4 & 5 axis
| High-speed vertical machining centersMori Seiki, DN Solutions and FANUC 3- and 4-axis machines for your most demanding parts |
| 5-axis and 4-axis compact VMCsFANUC Robodrill cells with in-machine probing, spindles to 24,000 RPM and robotic auto-loading for small, multi-face precision parts and castings |
Inspection in-house
| Automated CMMCOORD3 with Renishaw PH20 5-axis probing and Verisurf programming; Mitutoyo CMM for second-source verification |
| Vision & opticalKeyence IM image dimension system, OGP digital optical comparator, surface profilometers and hardness testing |
| Gage libraryExtensive plug- and thread-gage libraries, bore gages, height gages and surface plates — calibrated under Gage Track with NIST-traceable standards |
From print to conforming part.
A disciplined, AS9100-governed flow takes your drawing from quote to shipment — with a documented gate at every step.
Quote
Contract review of the print, specs and flow-downs; material and process sourcing; a firm quote with the risks called out.
Plan
Routing, certified material procurement, Mastercam programming and fixture design — first-article plan set before cutting.
Machine
Multi-axis turning and milling, with feature dimensions checked at the machine as the job runs.
Process
Customer-approved or Sunset-selected special processors, with certifications collected and reviewed before the next operation.
Inspect
Final inspection under our certified-supplier delegation; AS9102 FAIR and full data package where required.
Deliver
Certificate of Conformance, material and process certs, and traceability back to the mill heat — on dock, on the date promised.
Big-shop discipline.
Small-shop attention.
Customers keep us on their approved lists for decades for reasons that don't show up on a capabilities matrix.
Certified-supplier trust
Customers have delegated final inspection to us — our C of C ships parts straight to their stock. That status is audited and re-earned on every lot, and it shows in a 99.8% quality rating on a major account in 2025.
Difficult work, done in-house
Hard alloys, thin walls, back-side features and matched sets are the norm here, not the exception. Multitasking machines and in-machine probing keep the part in one setup and the tolerance stack short.
One accountable supplier
Material, machining, special processes, assembly and the certification package under one purchase order — coordinated by us, documented to AS9100, and traceable to the heat number.
Direct access
Call and you reach the people who quote, program and inspect your parts. Decisions on a schedule change or a print question happen the same day, not next quarter.
Here for the long run
Sunset is family-owned with the third generation already in the business and a succession plan to keep it in the family for decades to come. We sign long-term agreements because we intend to be here to honor them.
Compliance built in
ITAR-registered with a documented export-control program, a 100% U.S.-person workforce, and CMMC Level 2 readiness in progress — so controlled programs can be placed here without a workaround.
Have a part to quote?
Send the print, the material and the quantities. You'll get a clear quote from people who have read every line of it.