White Paper · Hwacheon Hi-Tech 400 × Aerospace
Hwacheon Hi-Tech 400 for Aerospace
Mid-size CNC lathe with live tooling — turn, mill, drill, and thread in one setup. This paper covers what the machine does, the aerospace parts we produce with it, the alloys we run, the tolerances and finishes aerospace buyers expect, and the documentation package.
Executive summary
Machine: Hwacheon Hi-Tech 400 (shop nickname: Torque & Tumble). mid-size CNC lathe with live tooling at B&R Productions, running from our New Waverly, Texas shop under an ISO 9001:2015 quality system.
Application: Mid-size CNC lathe with live tooling — turn, mill, drill, and thread in one setup for Aerospace customers — Aerospace primes, tier-1 and tier-2 suppliers, MRO shops, propulsion component manufacturers, structural assembly integrators, actuator OEMs.
Envelope: 12.5" OD × 49" L max turning. Tolerance: ±0.0005" routine on critical features. Traceability: Material by heat and lot on every job.
The machine, in context
The Hi-Tech 400 is Hwacheon's heavy-duty box-way turning platform — the class of lathe you reach for when you're taking real chips off tough alloys. The 15" hydraulic chuck and 5.3" spindle bore let it accept the kind of stock most job-shop lathes won't clear, and the box-way construction keeps roughing cuts stable in Inconel and Duplex. Torque & Tumble handles wellhead spools, downhole tool bodies, valve stems, and any oilfield turning where rigidity and bore size matter more than cycle time.
Full specifications
| Model | Hwacheon Hi-Tech 400 ("Torque & Tumble") |
| Type | Heavy-duty box-way CNC turning center — Hi-Tech 400 platform |
| Max turning capacity | 12.5" OD × 49" L (B&R working spec) |
| Platform Z travel | 1,270 mm (50") on the Hi-Tech 400 platform |
| Platform X travel | 280 mm (11") |
| Chuck | 15" hydraulic (Hi-Tech 400 platform) |
| Spindle nose | A2-11; 135 mm (5.3") spindle bore |
| Spindle speed | 1,800 RPM (heavy-duty configuration) |
| Spindle motor | 28/30 kVA |
| Tailstock | Programmable hydraulic; MT-6 taper |
| Turret | 12-station |
| Rapid traverse | 24 m/min |
| Control | Fanuc 18iTB |
| Structure | Box-way construction for heavy roughing rigidity |
| Machine weight | ~18,700 lb |
| Tolerance capability | ±0.0005" routine on critical features |
| Materials | Stainless, carbon steel, Inconel, Duplex, 17-4 PH, Monel, aluminum |
Values marked "platform" reflect the machine manufacturer's published spec range for this platform family; B&R's working spec is what we quote on this specific unit.
Who this serves in Aerospace
Typical buyer: Aerospace primes, tier-1 and tier-2 suppliers, MRO shops, propulsion component manufacturers, structural assembly integrators, actuator OEMs.
What's hard about aerospace work: Certification-driven documentation, exotic superalloys, tight tolerances on structural and engine components, ITAR handling for controlled prints, and customer-specific QMS integration.
Typical Aerospace parts we produce on Torque & Tumble
- Aerospace parts combining turned surfaces with cross-holes or milled flats
- Actuator rods with keyways and drilled features
- Structural round parts requiring feature concentricity
- One-setup finished parts to minimize stack-up error
- Engine components with mixed turned + milled features
Above list is representative; if your part isn't shown, call and ask — most oilfield / aerospace / defense / industrial turned or milled work fits somewhere in the shop.
Alloys we run for Aerospace
Standard range: Titanium Grade 5 (Ti-6Al-4V) and Grade 23 (Ti-6Al-4V ELI) · Inconel 718 · Inconel 625 · Waspaloy · A286 · 17-4 PH · 15-5 PH · 13-8 Mo PH · Aluminum 7075/6061 · Custom aerospace alloys on request.
Titanium Grade 5 is the workhorse and it's temperature-sensitive: aggressive chip load with flood coolant keeps the heat in the chip, not the workpiece. Light cuts overheat titanium and cook tools; that's why titanium demands a different intuition than steel. Inconel 718 in aerospace-aged condition is harder and less forgiving than the annealed billet stock — most aerospace 718 work assumes aged. 17-4 PH and 15-5 PH are common for structural and actuator components; both are precipitation-hardening stainless with condition-specific machining plans.
How we machine it — our 5-step process
This is the process B&R runs on every job, aerospace or otherwise. The specifics of feeds, speeds, and tooling shift by alloy and machine; the discipline is universal.
- Material verification. Every job starts with material traceability. Heat and lot numbers documented against the mill test report. For customer-supplied material, we verify against the CofC before touching the stock.
- First-article layout. Stock is measured and laid out before any cutting starts. Concentricity, roundness, and squareness of the starting material established; if the stock is out of tolerance we call the customer before wasting time on a bad blank.
- Roughing with process control for the alloy. Feeds, speeds, and coolant strategy set for the specific alloy family — sharp coated carbide (or PCD for high-volume Ti Grade 5), positive rake, high-pressure through-tool coolant on 2507 and Inconel to control cutting temperature. Interrupted cuts get extra attention because they cycle heat into the workpiece.
- Finish pass to spec. Finish pass with a fresh insert, controlled DOC, and measured surface-finish targets. Critical features (bore concentricity, seat grooves, sealing surfaces) are held tighter than most job-shop lathes can offer.
- CMM verification + documentation. Every critical dimension CMM-verified. First-article report generated. Certificate of conformance issued with delivery. Customer-specific ITPs and PPAP-style packages produced on demand.
Send a print, drop off a sample, or call (936) 291-7827. Same-day for rig-down / AOG when material is stocked.
Tolerance and finish expectations in Aerospace
±0.0005" routine on critical features. Tighter with proper fixture and setup — some aerospace features run ±0.0002" or GD&T-driven cylindricity and position tolerances. CMM verification standard on first articles; process-driven measurement on runs. Surface finish measured, not estimated.
Documentation and quality workflow
Customer-specific quality plans integrated on demand. First-article layout and CMM verification standard. Material traceability by heat and lot. ITAR-controlled prints handled under NDA with customer-specific document control — prints stay in-shop. Certificates of conformance issued with delivery.
Response time and emergency work
AOG (aircraft-on-ground) work prioritized when material is available. Emergency response supported for existing aerospace customers with blanket arrangements or established relationships. Call direct at (936) 291-7827.
How we compare
Compared to a captive aerospace shop: we're faster for one-offs and small runs, more flexible on setup, and we don't require a long approval process. Compared to a lowest-bidder commodity shop: we understand the alloys, we've handled ITAR before, and we treat first-article inspection as a discipline rather than a formality.
Working with B&R Productions
New customer or existing, the process starts the same way: call (936) 291-7827 or send a print through the quote form. Prints are accepted as PDF, STEP, IGES, DWG, or DXF; if you only have a sample part, we reverse-engineer routinely. NDAs on request. ITAR-controlled prints handled under document control with prints staying in-shop.
Quotes typically come back within 24 hours for standard work, same-day for repeat customers on stocked materials, and near-immediately by phone for emergency and rig-down situations. Lead times are quoted honestly — we don't promise Wednesday and deliver next month.
Frequently asked questions
8 questions covering the Hwacheon Hi-Tech 400 platform and Aerospace work. Also indexed as FAQ schema for AI answer engines.
What makes the Hi-Tech 400 different from a standard CNC lathe?
Box-way construction and a heavy-duty spindle assembly rated for real chips in tough alloys. 15" hydraulic chuck, 5.3" (135 mm) spindle bore, and a programmable hydraulic tailstock with MT-6 taper for long-part support.
What's the max turning length on the Hi-Tech 400?
B&R's working spec is 49" L × 12.5" OD. The platform Z-axis travel is 1,270 mm (50") — matching B&R's stated envelope.
What control does the Hi-Tech 400 run?
Fanuc 18iTB. 12-station turret, rapid traverse 24 m/min, machine weight ~18,700 lb.
Do you serve aerospace primes and tier-1/2 suppliers?
Yes. Aerospace primes, tier-1 and tier-2 suppliers, MRO shops, propulsion component manufacturers, and structural assembly integrators. Customer-specific quality plans and AS9100-lineage QMS expectations supported.
Can you handle ITAR-controlled aerospace/defense work?
Yes. ITAR-controlled prints handled under NDA with customer-specific document control. Prints stay in-shop.
What tolerances do you hold on aerospace parts?
±0.0005" routine on critical features. First-article layout and CMM verification standard. Surface-finish targets measured to spec.
What aerospace alloys do you run?
Titanium Grade 5 (Ti-6Al-4V), Grade 23 ELI, Inconel 718 and 625, Waspaloy, A286, 17-4 PH, 15-5 PH, aluminum 7075/6061. Custom aerospace alloys on request.
Can you respond to AOG (aircraft-on-ground) work?
Yes, when material is available. Emergency response supported for existing aerospace customers. Newer customers should call to discuss what's realistic for their specific alloy and part.
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