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Custom CNC Machined Precision Flanges Couplings | BQUQ Factory China

OpeningYour drawing. Our machines. Zero guesswork.We machine flanges and couplings to your exact print. Not a catalog part. Not a modified standard. Your geometry, your material, your tolerances.Every


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Opening

Your drawing. Our machines. Zero guesswork.

We machine flanges and couplings to your exact print. Not a catalog part. Not a modified standard. Your geometry, your material, your tolerances.

Every batch is verified before shipment. You get a full inspection report with each order. No surprises.

  • Tolerance: ±0.005 mm on critical diameters
  • Lead time: 7–15 days for most CNC machined parts
  • No MOQ: 1 piece or 10,000 pieces, same process control
  • Materials: aluminum, stainless steel, brass, copper, alloy steel, POM, PEEK
  • Machines: 3-axis, 4-axis, 5-axis CNC centers; Swiss-type lathes
  • Inspection: CMM, optical comparators, surface roughness testers

Specifications

ParameterValue
MaterialsAluminum 6061/7075, SS 303/304/316, Brass C360, Copper C110, Alloy Steel 4140/4340, POM, PEEK, PTFE
CNC machines3-axis / 4-axis / 5-axis machining centers, CNC lathes with live tooling
Tolerance±0.005 mm (machined), ±0.01 mm (general)
Surface finishRa 0.4 µm (ground), Ra 0.8 µm (machined), Ra 1.6 µm (standard)
ThreadsMetric, UNC, UNF, BSP, NPT – cut or rolled
Max part size800 mm x 500 mm x 400 mm (milling); Ø 300 mm x 600 mm (turning)
Batch size1–50,000 pieces
Lead time7 days (prototype), 15 days (production)
InspectionCMM reports, material certs, surface roughness check, dimensional report per batch
Secondary opsAnodizing, passivation, nickel plating, powder coating, laser engraving

CNC Turned Precision Shafts

Three reasons buyers send us their drawings

1. Batch-traceable quality. Every part gets a unique batch number. We track material heat number, machine operator, tooling, and inspection results. If anything goes wrong, we trace it to the source in minutes. You get a digital record with every shipment.

2. Inspection report per batch. We don't just say "it's in tolerance." You receive a dimensional report with actual measured values. CMM data for critical features. Surface roughness readings. Thread gauges results. This is not a generic certificate – it's your part's real data.

3. One factory for CNC + stamping + springs + heat sinks. Your flange might need a stamped gasket. Your coupling might need a spring. Your enclosure might need a heat sink. We do all of it under one roof. One PO, one quality system, one shipping point. You save freight, handling, and supplier management time.

Where these parts are used

CNC machined flanges and couplings go into systems where alignment and torque transfer matter.

  • Pump and compressor systems – flanges for pipe connections, couplings for motor-to-pump shafts.
  • Automotive drivetrains – custom flanges for driveshafts, couplings for steering columns.
  • Robotics and automation – precision couplings for servo motors, encoder mounts, and joint flanges.
  • Oil and gas equipment – high-pressure flanges in stainless steel or alloy steel, often with NPT threads.
  • Medical devices – small couplings in PEEK or stainless for surgical instruments and imaging equipment.
  • Semiconductor tools – vacuum flanges and precision couplings in aluminum or 316L, with tight flatness and surface finish.

These parts see vibration, heat, and cyclic loads. That's why we machine them from solid stock – no porosity, no weld seams, no weak points.

Looking for a different part? We also machine Custom CNC Machined Robot Wheel Hubs | Precision Manufacturing No MOQ in the same Dongguan factory.

Questions buyers ask before ordering

Q: What is your MOQ? A: No MOQ. We machine one piece for prototypes and scale to 50,000 pieces for production. Same quality system, same inspection rigor.

Q: How do you guarantee tolerance and quality? A: We use calibrated CNC machines and verify with CMM and optical instruments. Every batch gets a dimensional report. Critical features are 100% inspected. We keep records for 5 years.

Q: What is your lead time? A: Prototypes ship in 7 days. Production runs ship in 15 days from drawing approval. For urgent orders, we can do 5 days on selected materials and geometries.

Q: Do you provide material certificates? A: Yes. We supply mill test certificates for metals and raw material certificates for plastics. Every batch is traceable to the original material heat or lot.

Send your drawing

Stop waiting for quotes that take a week.

Send us your PDF, STEP, IGES, or DXF. We review the geometry, tolerances, and surface finish. You get a firm quote in 12 hours.

No hidden costs. No vague promises. Just a clear price and lead time from a precision manufacturing shop with 20 years of experience.

Email: sc@bquq.com WhatsApp: +86 13713157787

Custom CNC machining, made in China, with no MOQ and real inspection data. Your drawing is the only thing we need to start.


Related Products

parameter

ParameterCapability
MaterialsAL6061/7075, SUS303/304/316, 45# steel, T2 copper, H59 brass, POM, PEEK, nylon
Tolerance±0.005mm standard, ±0.003mm on request
Machines3/4/5-axis CNC, turn-mill, Swiss lathe
SurfaceAnodizing, nickel, zinc, passivation, sandblast, polish
Size RangeMax 400 x 300 x 200 mm
Prototype72 hours, no MOQ on samples
InspectionFull report per batch, CMM data on request

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