CNC Turning for Small Diameter Precision Components from Sanluo, a trusted China manufacturer, delivers φ0.1mm minimum diameter turning with ±0.001mm accuracy. Our 7-axis SwissNano machines achieve Ra0.01μm mirror finishes on micro shafts, serving medical and semiconductor industries with 18+ years of expertise and 99.9% quality rate.
As a specialized CNC turning manufacturer and supplier in China, Sanluo provides advanced CNC Turning for Small Diameter Precision Components that push the boundaries of miniaturization and precision. Our 8,000 square meter facility houses over 130 precision machines, including Swiss-type ultra-precision lathes capable of processing bar diameters as small as φ0.1mm. With a team of 230+ technical professionals and 16 dedicated quality personnel, we deliver micro-components with dimensional tolerances as tight as ±0.001mm. From single prototype pieces to mass production runs of 999,999 pieces, every small-diameter component undergoes rigorous inspection backed by ISO9001:2008 and ISO14001:2004 certifications and a 99.9% qualification rate.
Our micro-turning capabilities represent the cutting edge of small-diameter precision manufacturing, enabling production of components that were once considered impossible to machine at scale.
Micro-feature precision:
1. Minimum structural feature size: 0.005mm for ultra-fine details
2. Smallest part dimensions: 0.08×0.08mm for micro-components
3. Minimum micro-diameter rod: φ0.01mm for ultra-thin shaft applications
4. Smallest micro-hole diameter: 0.003mm for precision fluidic components
5. Highest part precision: 0.001mm dimensional accuracy
Small diameter turning range:
We specialize in turning components with diameters ranging from φ0.1mm up to φ32mm on our Swiss-type machines, with extended capability up to φ380mm on our high-precision CNC lathes. This range covers everything from micro-medical components to small precision industrial parts.
Thread and groove precision:
For small-diameter components, we produce micro threads with pitch as fine as 0.05mm and precision thread grade 2-4, along with grooves as narrow as 0.05mm wide with depth tolerances of ±0.001mm — all achievable without compromising surface quality or structural integrity.
The following specifications define our standard capabilities for small diameter precision turning. Custom requirements beyond these parameters can be evaluated by our engineering team.
|
Specification |
Swiss-Type (Small Diameter) |
High-Precision Lathe |
|
Minimum Bar Diameter |
φ0.1mm |
φ3mm |
|
Maximum Bar Diameter |
φ32mm |
φ380mm |
|
Dimensional Accuracy |
±0.0001mm |
±0.001mm |
|
Surface Roughness |
Ra0.01μm (mirror) |
Ra0.01-0.8μm |
|
Roundness |
0.0003mm |
0.001mm |
|
Coaxiality |
0.0005mm |
0.001mm |
|
Minimum Groove Width |
0.05mm |
0.1mm |
|
Thread Grade |
Grade 2-4 |
Grade 2-4 |
|
Max Turning Length |
Per bar capacity |
1000mm |
Our SwissNano 7-axis ultra-precision lathes represent the gold standard for small diameter precision turning, delivering unmatched accuracy and surface quality for micro-components.
Machine configuration:
● 7-axis simultaneous machining for complex geometries in a single setup
● Main spindle speed range: 10,000 to 50,000 rpm for ultra-fine finishes
● Sub-spindle speed range: 10,000 to 40,000 rpm for back-working operations
● Siemens 840D sl CNC system for advanced motion control
Structural innovations:
● Swiss-type guide bushing structure provides exceptional rigidity for small-diameter workpieces
● High-precision linear guide rails ensure smooth, accurate axis movement
● Thermal error compensation system maintains accuracy across temperature variations
● Diamond tool management with tip radius 0.01-0.1mm and wear compensation ±0.0001mm
This combination of advanced hardware and intelligent control systems allows us to consistently produce small-diameter components with precision levels that conventional CNC lathes simply cannot achieve.
Every small diameter precision component undergoes comprehensive quality verification using our extensive inspection equipment portfolio of over 320 units and pieces.
Inspection equipment arsenal:
1. Automatic coordinate measuring machines (CMM) for 3D dimensional verification
2. Image analyzers for non-contact measurement of micro-features
3. Tool microscopes and high-power microscopes for surface and feature inspection
4. Stereoscopic microscopes for detailed structural examination
5. Projectors for profile verification of small components
6. Height gauges, roughness meters, and micrometers for precision measurement
Process control methodology:
We implement SPC (Statistical Process Control) with CPK ≥ 2.0 for critical dimensions, ensuring that our production processes remain in statistical control and capable of meeting tight specifications consistently. Our 16 quality personnel — including QE, IQC, IPQC, and OQC specialists — oversee every stage from incoming material inspection to final outgoing quality verification.
100% key dimension inspection:
Critical dimensions on every small diameter component are inspected 100% using CMM, roundness meters, and roughness testers, providing complete traceability and assurance that every part meets your specifications.
Small diameter precision components are critical to several high-tech industries where miniaturization and precision directly impact product performance and safety.
Medical device industry:
We produce vascular stent components with wall thickness tolerances of ±0.001mm and Ra0.01μm surface finish, glaucoma surgical instrument cutting tools, artificial heart components, eccentric grinding heads for vascular calcification blocks, and gallbladder stone grinding heads. These life-critical components demand the highest levels of precision and biocompatible material processing expertise.
Semiconductor industry:
Our small diameter turning capabilities serve semiconductor manufacturing with components like coating fixtures, vacuum fixtures, diamond silicon wafer grinding knives, and elastic supports — all requiring ultra-precise dimensions and exceptional surface quality to ensure reliable semiconductor production.
Optical communication industry:
We manufacture opto-bar machine coating-related parts and precision optical components that require tight dimensional control and mirror-quality surfaces for optimal light transmission and reflection.
Scientific research:
We partner with university research teams and scientific institutions to produce custom micro-components for experimental setups and prototype development, supporting minimum order quantities of just 1 piece.
A: Our Swiss-type ultra-precision lathes can process bar diameters as small as φ0.1mm, and we can achieve micro-diameter rods as thin as φ0.01mm for specialized applications.
A: Yes, we can produce micro-holes as small as 0.003mm in diameter, leveraging our advanced micro-machining capabilities and inspection equipment.
A: Production cycles range from 3 days for simpler components to 20 days for complex precision parts, depending on geometry complexity, material, and order quantity.
A: Absolutely. We support minimum order quantities of just 1 piece, making us ideal for prototype development and small-batch testing before scaling to mass production.
A: We use 320+ pieces of inspection equipment including CMMs, image analyzers, and high-power microscopes, with 16 dedicated quality personnel implementing SPC process control and 100% inspection of critical dimensions.
A: We work with a wide range of materials including stainless steel, titanium alloy, aluminum alloy, brass, copper alloy, engineering plastics like PEEK and PEI, ceramics, and sapphire.
A: Yes, we can provide sample parts for your approval. Sample fees apply based on component complexity and material requirements, and samples are typically available within our standard production lead times.
When you choose Sanluo for your CNC Turning for Small Diameter Precision Components needs, you gain access to 18+ years of micro-machining expertise, 7-axis SwissNano ultra-precision lathes, and a 99.9% quality rate proven across 500,000+ annual components. Our 230+ skilled professionals and 16 quality specialists ensure every micro-component meets the tightest specifications. We serve 5,000+ customers worldwide, from leading medical device companies to semiconductor manufacturers and research institutions. Located in Shenzhen's Guangming District, just 25km from Shenzhen Airport, we offer efficient global logistics with production cycles from 3 to 20 days. Whether you need a single prototype or 999,999 precision micro-components, Sanluo delivers unmatched small-diameter turning precision. Contact us today to discuss your micro-component requirements.
