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Read article → TJ2851 • ISO 9001 • 18 YEARS IN PRECISION • 340+ FACTORIES UPGRADED
WE BUILD SMART
FACTORIES THAT
NEVER SLEEP.
TJ2851 is a full-cycle precision engineering studio. CNC machining with 0.002mm tolerance, industrial IoT, robotics and digital twins — from prototype in 72 hours to lights-out production.
5-Axis CNC Cell A-2851Titanium • Inconel • 24/7 lights-out
Robotics IntegrationABB • KUKA • 12s cycle time
Live Digital Twin142 sensors • 0 downtime
CNC MACHINING ◆ INDUSTRIAL IOT ◆ ROBOTICS ◆ DIGITAL TWIN ◆ PROTOTYPING 72H ◆ SHEET METAL ◆ AUTOMATION ◆ QUALITY LAB ◆ CNC MACHINING ◆ INDUSTRIAL IOT ◆ ROBOTICS ◆ DIGITAL TWIN ◆ PROTOTYPING 72H ◆ SHEET METAL ◆ AUTOMATION ◆ QUALITY LAB ◆
01 — About TJ2851
NOT A FACTORY.
A PRECISION OS.
TJ2851 started in 2007 as a two-machine tool shop. Today we run a 12,400 m² smart campus where engineers, data scientists and machinists work as one team. Our code name 2851 stands for our promise: 2 micron precision, 8-hour prototype response, 51 quality checkpoints.
Dr. Jian Tao, Founder
“We measure success in microns and uptime. Everything else is noise.”
OUR MISSION / 2026
Make world-class manufacturing accessible to every hardware team.
From startups building drones to Tier-1 automotive suppliers, we give you the same stack: instant DFM feedback, transparent pricing, live production tracking and metrology reports with every batch. No black boxes. No delays.
- ✓Full traceability. Every part has QR passport: material cert, machine, operator, CMM scan.
- ✓Engineering-first. 42 engineers review each drawing free within 8 hours.
- ✓Sustainable. 68% recycled aluminium, solar-powered shop, zero landfill coolant.
- ✓Global logistics. DHL / air / sea, customs handled, delivery to 38 countries.
0㎡Smart campus
0Engineers & PhDs
0+Factories digitized
0MParts shipped
02 — Capabilities
EVERYTHING UNDER ONE ROOF
One partner for prototype to mass production. Upload STEP, get DFM + quote + timeline in hours, not weeks.
TOLERANCE ±0.002MM
CNC Machining 3/5-Axis
Milling, turning, Swiss lathe. Aluminium, titanium, PEEK, Inconel. 68 machines, 24/7.
142 SENSORS / CELL
Industrial IoT & Digital Twin
Retrofit any machine in 2 days. Vibration, thermal, OEE dashboards + predictive maintenance.
-37% COST
Robotics & Automation
Pick-and-place, palletizing, vision QC. ROI in 7 months average. ABB & Universal Robots.
72 HOURS
Rapid Prototyping
SLA, SLS, MJF + CNC + vacuum casting. Functional prototypes with production-grade finish.
0.5 - 12MM
Sheet Metal & Welding
Laser cut, bending, TIG/MIG, powder coat. Enclosures, chassis, clean-room cabinets.
51 CHECKPOINTS
Metrology & Certification
Zeiss CMM, X-ray, RoHS, PPAP Level 3, AS9100 docs. Full inspection video per batch.
03 — Technology Stack
MACHINES THAT TALK.
SOFTWARE THAT LISTENS.
TJ-OS v5.2
Your parts, live on screen.
Track every operation: tool wear, spindle load, temperature. Get push alerts when your batch passes QC. Clients cut delays by 61% in first quarter.
99.2%
OEE
OEE
0
Downtime hrs
Downtime hrs
Live
CMM data
CMM data
⚙️ Lights-out Cell 2851
Robotic tending + auto tool changer + in-process probing. Runs 112 hours unmanned over weekends.
🧠 AI DFM Engine
Upload CAD → AI flags thin walls, impossible undercuts, cost drivers and suggests 3 cheaper alternatives instantly.
🔬 Nano Surface Lab
Bead blast, anodize Type II/III, electropolish, PVD black. Ra 0.2 surface on demand for optics & medical.
01
Upload CAD
STEP / IGES / DXF. NDA auto-signed.
02
DFM in 8h
Engineer + AI review, quote locked.
03
Live Production
Watch machines, QC videos daily.
04
Deliver + Trace
CMM report + QR passport included.
04 — Selected Work
PROOF, NOT PROMISES
120+ launches last year. Medical, aerospace, robotics, e-mobility — all shipped on time.
AEROSPACE
Titanium Bracket — 0.003mm
2,400 pcs for eVTOL. Weight -22%, zero rejects.
MEDTECH
Surgical Robot Housing
PEEK + anodized alu, ISO 13485 docs.
ROBOTICS
Delivery Bot Chassis
From prototype to 5k units in 11 weeks.
E-MOBILITY
E-Bike Mid Motor
Die-cast + CNC, IP67 sealed, 40k/year.
SEMICON
Wafer Fixture ESD-safe
PEEK, Ra 0.4, clean-room packed.
RETROFIT
Legacy Factory → Smart
34 machines IoT-enabled, OEE +28%.
“TJ2851 is insane. They caught a tolerance stack error our own team missed. Saved us $80k in rework.”
Marcus FeldCTO, Volt Dynamics — Germany“Prototype Friday, tested Monday, 2k units in 3 weeks. Fastest supplier we ever had. Live dashboard is addictive.”
Sarah KimFounder, Loop Robotics — USA“PPAP docs perfect, CMM videos for every batch. Passed our aerospace audit with zero findings.”
A. NakamuraProcurement, AeroNext — Japan05 — Pricing
TRANSPARENT. LOCKED. NO SURPRISES.
Prototype Sprint
$290 / from
For validation & investors.
- ✓ 1-10 pcs in 72h
- ✓ Free DFM review
- ✓ 3 finishes included
- ✓ Express air shipping
Production Scale ⭐
$1.9 / per part from
Most popular for 100-10k units.
- ✓ Locked quote 12 months
- ✓ Live TJ-OS tracking
- ✓ CMM + QR passport
- ✓ Dedicated engineer
Smart Factory OS
Custom
Digitize your own plant.
- ✓ IoT retrofit in 2 days
- ✓ Digital twin + AI alerts
- ✓ Team training
- ✓ ROI guarantee
06 — FAQ
QUESTIONS? ANSWERED.
What tolerances can you really hold?
Standard ±0.02mm, precision ±0.005mm, ultra-precision ±0.002mm on request with Zeiss CMM proof. We tell you honestly if your drawing needs adjustment — free DFM within 8 hours.
How fast is prototype delivery?
CNC plastic/metal prototypes in 72 hours, 3D print in 48h. Production batches 100-1000 pcs typically 7-12 days including finishing and QC.
Do you sign NDA and protect IP?
Yes. Automatic NDA on upload, segregated servers, restricted shop access. We work with stealth startups and listed aerospace firms alike.
What files do you need?
STEP or IGES + PDF drawing if tolerances matter. No drawing? Our engineers will create one from your STL or sketch.
Do you ship internationally?
To 38 countries via express, air and sea. All customs, duties paperwork handled. DDP available for EU/US/JP.
07 — News & Insights
FROM THE LAB NOTEBOOK
Automation tactics, material guides, cost breakdowns. Written by engineers, not marketers.
08 — Contact
LET'S MAKE IT. IN METAL.
Upload drawing, get engineer reply in <8 hours. No spam, no sales pressure — just DFM + price + date.
HQ Campus
2851 Innovation Ave
Open 24/7
2851 Innovation Ave
Open 24/7
Response
<8h engineer
24/7 live chat in TJ-OS
<8h engineer
24/7 live chat in TJ-OS