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Precision machining · Shenzhen, China · since 2018 中文站 · mxy@djsjwj.com
+86 137 2879 3168

Shenzhen · since 2018

Precision CNC parts, quoted in 24 hours

A 30-person machine shop with 51 CNC and lathe machines. We cut aluminium, stainless steel, brass, copper and titanium to your drawing — from one piece for a prototype to repeat production runs.

  • From 1 piece, no mould or tooling charge
  • ±0.01 mm typical tolerance, tighter on review
  • Drawing review and quote within 24 hours
  • First article report and material certificate on request
CNC machining floor at Dingjiefeng Precision, Shenzhen
Our own floor in Guangming, Shenzhen — 51 machines, not a trading office.
2018Founded in Shenzhen
51machinesCNC mills, lathes, auto lathes
30+peopleProduction and engineering
±0.01mmTypical tolerance

Three processes under one roof

Milling, turning and automatic lathe work are quoted and scheduled by the same team, so a part that needs two operations does not wait in a queue between suppliers.

CNC milling

T5 three-axis centres plus four-axis VMCs for housings, brackets, heat sinks and plates. One set-up for mounting holes, pockets and sealing grooves keeps the position relationship between features under control.

  • 10 × CNC T5 centres + 4 four-axis VMCs
  • Aluminium, steel, brass, plastics
  • Vacuum and soft-jaw fixturing for thin walls

CNC turning

Slide-type and turret CNC lathes for shafts, flanges, motor housings and connectors. Concentricity between bore, face and thread is the parameter we control first.

  • Bar capacity up to Ø 46 mm
  • Chucker work up to Ø 350 mm
  • Threads, grooves, cross holes in one set-up

Automatic lathe

Cam and CNC automatic lathes for small turned parts in volume — pins, spacers, pen barrels, inserts. Lower piece price once the set-up is amortised.

  • Bar capacity Ø 3–20 mm
  • Ideal for 5,000+ piece runs
  • Short cycle times for simple geometry

From drawing to shipment

  1. 01

    Drawing review

    Send STEP/IGES/DWG/PDF plus material, quantity, tolerance and finishing. We reply with questions the same day if anything is ambiguous.

  2. 02

    Quote in 24 hours

    Price broken down by material, machining time, finishing and inspection. No tooling charge for machined parts.

  3. 03

    First article

    Typically 3–7 working days depending on material availability and the number of operations. First article inspection report with the sample.

  4. 04

    Production

    Batch runs scheduled after sample approval. Material certificate and inspection records kept per lot.

  5. 05

    Finishing and shipping

    Anodising, passivation, plating, black oxide or sandblasting through qualified partners, then export packing and shipping terms as agreed.

Inspection that matches the drawing

Every batch is checked against the dimensions you actually specified, not a generic sampling plan.

First article inspection

Full dimensional report on the first part, with the critical characteristics marked on the drawing.

In-process checks

Operator checks at fixed intervals; critical dimensions measured with the same instrument used for the FAIR.

Final inspection

2D vision measurement, CCD optical sorting, salt spray, hardness and RoHS testing, plus gauges, depending on the feature class.

Traceability

Material certificate, batch number and inspection records retained so a repeat order matches the first.

Why overseas buyers work with us

  • English quoting. Drawings and questions handled in writing, so nothing depends on a phone call in another time zone.
  • No tooling charge. Machined parts are cut from stock; you pay for material, machine time and finishing only.
  • One piece upward. Prototype first, then the same set-up for the batch — the first article is the reference for production.
  • Documents that travel. Material certificate, first article report and finishing certificate available with the shipment.

Send a drawing, get a price within 24 hours

STEP, IGES, DWG, PDF or a dimensioned sketch — plus material, quantity and finishing. We reply with a price and any questions in one message.