1、Process Introduction | What can CNC lathes solve?
High roundness/concentricity: spindle runout ≤ 0.003 mm, complete inner and outer circles, end faces, and grooves in one clamping, concentricity ≤ 0.01 mm Complex rotary profile: X-Z two axis+Y-axis module, capable of turning polygons, eccentric axes, and non-circular surfaces High precision thread: encoder 0.001 °, metric/imperial/modulus/radial pitch thread cumulative error ≤ 0.02 mm/25 mm Hard car replacement grinding: CBN blade HRC>62 quenched parts Ra ≤ 0.4 µ m, saving secondary grinding Large scale unmanned: bar feeding machine+automatic feeding machine+feeder, 24-hour continuous operation, monthly production of 300000 pieces
2、Capabilities
| Item | Specification |
|---|---|
| Maximum Swing Diameter | 600 mm (Horizontal) / 500 mm (Vertical) |
| Maximum Turning Length | 1000 mm (Horizontal) / 700 mm (Vertical) |
| Bar Feeder Capacity | Φ5-80 mm, 3m length |
| Machining Accuracy | IT6-IT7, Roundness ≤0.003 mm, Surface Ra≤0.4 μm |
| Material Hardness | Soft Materials - HRC62 (Hard Turning) |
| Batch Capacity | 1-100,000 pieces/batch, Changeover<15 min |
3、Our Equipment
Doosan PUMA 2600Y
8-inch chuck, Y-axis ± 50 mm, with power turret 12 positions
Car milling composite, completing car milling and drilling in one go, reducing secondary clamping
Mazak QT-200MS
Dual spindle+dual turret, front/back processing without manual flipping
Bar material machine with a diameter of 65 mm, suitable for large quantities of small shafts
Hardinge T51SP SUPER-PRECISION
0.1 µ m X-axis grating, with a spindle runout of 0.001 mm
Specializing in ultra precision turning of bearing seats and spindle sleeves
Star SB-20R
Swiss type walking machine, 7-axis linkage, slender shaft within Φ 20 mm
Complete turning, milling, side drilling, and tapping in one clamping operation, with a length to diameter ratio of 20:1
4、CNC Turning Case Studies | Turning Cases
Material: 42CrMo4 quenched and tempered HB 280
Size: Φ 35 × 220 mm, coaxiality 0.01 mm
Features: Outer circle+tool groove+thread M24 × 1.5+flat position
Solution: PUMA 2600Y one-time turning milling, hard turning CBN blade
Result: Roundness 0.003 mm, cumulative thread error 0.015 mm, monthly production of 50000 pieces
Material: 7075-T6 aluminum
Size: Φ 80 × 60 mm, wall thickness 1.2 mm
Difficulty: Thin wall deformation, inner hole tolerance H7
Solution: QT-200MS dual spindle, low clamping force+vacuum chuck
Result: Inner hole roundness of 0.005 mm, batch of 100000 pieces without deformation
Material: 316LVM stainless steel
Size: Φ 4 × 50 mm, length to diameter ratio of 12:1
Solution: Star SB-20R walking machine, 7-axis turning milling+side drilling transverse hole
Result: Surface Ra ≤ 0.2 µ m, no polishing required, directly passivated packaging
5、 Cutting Tools and Automation
Sandvik CoroTurn HP high-pressure cooling tool holder, reliable chip breaking, iron chip length<30 mm
Ceramic/PCBN/CVD diamond blade, HRC62 hard car, replacing external grinding
Automatic bar feeding machine+feeder+online measurement, 24-hour unmanned operation
QR code laser marking: part number+material furnace number for each batch, scan the code for traceability
6、 Quality and Certification
ISO 2768-f Precision Tolerance Standard
ISO 6789 Thread Accuracy Testing
Three coordinate measurement of the first piece of each batch+online measurement of the batch outer diameter, with data automatically uploaded to MES
Surface roughness meter+contour meter+roundness meter, Ra ≤ 0.4 µ m actual measurement report attached
Trust Reliability
Years of export experience to global markets, proving our reliability in quality, logistics, and compliance.
Certified quality management and standardized production ensure reliable and repeatable results for every order.
What tolerances can you achieve?
Our standard tolerance for CNC machining is DIN-2768-1-f (fine)or +/-0.01mm. For high-precision requirements, we can achieve tolerances as tight as +/-0.005mm depending on the geometry and material.
What surface finishes do you offer?
We provide one-stop surface treatment services, including: As-machined (De-burred) Sandblasting Anodizing (Type ll Type III)Polishing Mirror Polishing Powder Coating Painting Laser Engraving (Logo/Text)
How fast can I get a quote?
Send us your 3D files (STEP/IGES) and 2D drawings (PDF). Our engineering team will analyze them and provide a detailed quote within 6-12 hours.
What is your typical lead time?
Prototypes: 3-7 days Production 10-20 days We also offer an Expedited Service for urgent projects.
Do you provide samples before mass production?
Yes, we always recommend making a pre-production sample for approval. We will send you photos/videos or ship the physical sample to you for verification before running the full batch.
What if the parts do not meet the specifications?
We have a strict Quality Control policy. If the parts do not meet the drawing specifications, we will remake them for free or provide a full refund. We stand behind our quality 100%.
What materials can you machine?
We work with a wide range of materials including: Metals, Aluminum (6061, 7075), Stainless Steel (303, 304, 316), Brass, Copper, Titanium Plastics: ABS, POM(Delrin), PEEK, Nylon, Polycarbonate. If you need a special material, just let us know.
