Precision CNC Swiss Machining Services — Tolerances to ±0.005mm
- Manufacturing Non-Standard Rotating Parts According To Drawings
- ISO 9001 Quality Management System
- Machining of Metal and Engineering Plastic Bar Stock
- Cost-effective Solution
- Complete Complex Processes In A Single Setup
- Ensure Consistency of Batch Parts
Why Choose Swiss-Type Lathe Machining?
Swiss-type lathe machining is a precision turning process based on a sliding headstock and guide bushing system. It uses advanced CNC Swiss-type lathes. Unlike traditional lathes, the workpiece is continuously supported at the cutting point as it feeds through the guide bushing. This significantly reduces vibration and deformation during the machining process. Moreover, this process ensures excellent dimensional stability and high part accuracy.
It is precisely because of this support mechanism that DSR uses Swiss machines to process small-diameter, high-precision parts. And we are also able to consistently maintain strict tolerance control and excellent surface quality in batch parts production.
Swiss Machining Process at DSR Factory
Step into DSR’s production workshop, where you can observe the real process of Swiss machining up close. We are equipped with multiple advanced Swiss machine tools, ensuring that every slender, small-diameter part meets stringent tolerance requirements. From raw materials to finished products, DSR uses the most rigorous production processes to ensure that every one of our products meets customer requirements.
Types of Parts Suitable for Swiss Machining
DSR’s Swiss turning capabilities can machine slender, high-precision parts that are difficult to achieve with other processes. We manufacture various types of parts according to customer drawings.
Slender drive shafts, motor shafts, and gear shafts with high length-to-diameter ratios are very suitable for Swiss-type machining. These shaft parts, processed by Swiss machining, can also maintain extremely high roundness and straightness.
- Key specs:L/D up to 10:1 | Roundness ≤ 0.005mm | Ra 0.8 finish
Locating pins, guide pins, and ejector pin-type pins require consistent diameter throughout their entire length. Our Swiss-type machines can complete turning, chamfering, and cutting off of long pins in a single operation.
- Key specs:Ø2–10mm | Diameter tolerance ±0.005mm | Length up to 150mm
Thin-walled bushings and sleeves require extremely high concentricity between inner and outer diameters. We can meet this machining requirement through Swiss-type lathes in a single setup. Additionally, we are capable of turning, boring, and cutting off bushings with wall thicknesses as low as 1mm.
- Key specs:Concentricity ≤ 0.005mm | Wall thickness from 1mm | ID tolerance to H6
The performance of hydraulic and pneumatic valve cores is critical to their shoulder diameter and surface finish. We can complete machining of parts with multiple features in a single cycle, ensuring that all critical diameter tolerances meet specifications.
- Key specs:Land diameter tolerance ±0.01mm | Ra 0.8 achievable | Groove width ±0.01mm
We can use sliding headstock machines to manufacture fuel nozzles, spray nozzles, and dispensing heads. We are capable of drilling micro holes as small as Ø0.1mm and providing polished internal flow channels to ensure excellent spray performance.
- Key specs:Orifice from Ø0.5mm | Internal taper angle ±0.5° | Materials: 303/316SS, brass, titanium
Our sliding headstock machines can utilize whirl milling and single-point cutting techniques to ensure parts have excellent pitch accuracy and burr-free thread crests. This machining process is ideal for mass production of non-standard threaded parts with shoulders, grooves, holes, or double-ended structures.
- Key specs:Threads from M6 | Both-end threading in one setup
Test probes, contact pins, and sensor probes require extremely sharp tips and mirror-finish surfaces. Our Swiss-type machining can produce probe components with fine geometric shapes without causing bending of slender profiles.
- Key specs:Tip radius down to 0.3mm | Ø5mm minimum diameter
Parts such as fittings, couplings, and fluid adapters can all be processed through Swiss-type lathes, and we can ensure these parts have excellent sealing surfaces and clean, burr-free internal passages.
- Key specs:Sealing face Ra 0.4 | Cross-drilled ports available
Features of The Parts We Can Machine
If you are unsure whether your part is suitable for Swiss-type machining, then you just need to check the following features. If the parts on your drawings contain any of these features, Swiss machining is likely the optimal solution.
The guide bushing of Swiss-type machines supports the bar stock at the cutting point, allowing slender shafts with high length-to-diameter ratios to maintain excellent roundness and straightness.
From Ø2mm pins to Ø32mm connector components, DSR can stably machine small parts that traditional equipment cannot clamp.
We are capable of machining rotational part features such as outer diameter, shoulder, arc, and chamfer, and can arrange the machining sequence according to functional datums.
Deep holes, micro holes, stepped holes, internal threads, and cross holes are the core advantages of Swiss-type lathes compared to ordinary equipment. The inner holes and outer circles of small parts are formed in one clamping.
We complete various thin-walled parts through optimized clamping strategies, sharp cutting tools, and layered cutting processes. In most cases, these parts do not require secondary grinding.
Features such as steps, grooves, relief grooves, and knurling distributed along the axial direction can be continuously turned in a single feed on the sliding headstock machine. We can strictly control the step diameter and axial position accuracy of parts.
Advantages of DSR's Swiss-type Lathe Machining
DSR’s Swiss lathe machining can stably achieve tight tolerance control, ensuring that the dimensional accuracy of every product withstands rigorous inspection.
Compared to traditional machining methods, our Swiss-type lathe machining process is more efficient and is particularly well-suited for medium- to large-volume production needs.
DSR’s Swiss lathes can complete multiple processes including turning, milling, drilling, and threading in a single setup.
We ensure that every component maintains the same dimensional accuracy and surface quality in high-volume production through standardized process parameters and full-process quality monitoring.
DSR has an experienced engineering team that can assess manufacturing feasibility, optimize tool paths and cutting parameters according to your drawing requirements.
DSR adopts reasonable capacity planning and production scheduling management. We are able to provide stable and predictable delivery cycles while ensuring part quality.
Our Quality Control of Swiss Machining Service
DSR has established a complete quality control system, covering raw material inspection, first article inspection, and final inspection. We must ensure that every batch of products can consistently meet drawing tolerance requirements. During the production process, we also use professional inspection equipment such as the coordinate measuring machine (CMM), optical image measuring instrument, and high-precision micrometers to monitor the critical dimensions of the parts. The purpose of doing this is also to effectively reduce variations between batches.
In addition, for industries such as new energy vehicles and medical care, we also provide you with material composition testing reports, dimensional testing reports and other documents, making the quality data of every product clearly traceable.
Key Tolerance Control for Swiss Machined Parts
Thanks to the continuous support of the sliding headstock and guide bushing system, DSR’s Swiss-type lathes can consistently achieve dimensional tolerances of ±0.005 mm, especially maintaining excellent stability when machining slender, small-diameter parts.
For different size types, we adopt differentiated tolerance control strategies. We must ensure that every component can precisely match the drawing requirements and meet the stringent application scenarios of multiple industries.
Deburring and Cleaning Requirements for Swiss Machined Parts
After Swiss machining is completed, parts do not directly enter the packaging and delivery process. Deburring and cleaning are also key steps to ensure the final quality of the parts. Swiss-type machined parts typically have small-diameter holes, threads, and stepped structures, which make them prone to producing tiny burrs at the edges during the machining process. If these burrs are not thoroughly removed, they will directly affect the assembly precision and usage safety of the parts. DSR employs various deburring processes, including manual deburring, vibratory polishing, and electrolytic deburring.
After deburring, the parts still need to undergo ultrasonic cleaning to thoroughly remove cutting fluid, metal chips and oil contamination remaining from the machining process. The purpose of this step is also to ensure that part surface cleanliness meets customer requirements.
Optional materials for Swiss Machined Parts
DSR’s Swiss machining capabilities cover a variety of metals and engineering materials. We can select the appropriate material based on the part’s functional requirements, operating environment, and cost budget.
- Stainless steel (303, 304, 316, 17-4PH, 420, 440C) is suitable for applications with high requirements for corrosion resistance and strength. This material is widely used in medical devices and fluid control components.
- Brass and bronze have excellent electrical conductivity and are easy to process, commonly used for connector pins and electronic components.
- Aluminum alloys (6061, 7075) are lightweight and efficient to machine, ideal for new energy vehicles and consumer electronics.
- Alloy steel (40Cr, 42CrMo, 4140) possesses excellent strength and wear resistance, making it an ideal choice for drive shaft components.
- Titanium alloy, with its excellent strength-to-weight ratio and biocompatibility, is indispensable in aerospace and high-end medical implants.
- Additionally, for specific applications, DSR also supports precision turning of engineering plastics (PEEK, POM, PTFE).
Whether the parts have special materials or stringent processing requirements, we can provide matching material solutions and process support.
Surface Treatment Methods for Swiss Turned Parts
DSR offers multiple surface treatment solutions for Swiss-turned parts. We can recommend the most suitable option based on your material characteristics and usage scenarios.
This process can enhance the conductivity and corrosion resistance of parts, commonly used for connector pins and electrical components.
Anodizing is suitable for aluminum alloy parts. It enhances the surface hardness and wear resistance of parts while offering a variety of color finishes.
This process chemically enhances the corrosion resistance of stainless steel parts and is widely used in medical devices and fluid control components.
This surface treatment provides a thin rust-resistant layer for carbon steel and alloy steel parts while maintaining high dimensional accuracy.
This process removes micro burrs from the surface of Swiss machined parts and improves their surface finish.
Typical Applications of Swiss Machining Service
Swiss machining has become an indispensable processing method in multiple precision manufacturing fields with its excellent tolerance control capabilities and batch consistency. Through Swiss machining services, DSR has manufactured various types of precision components for customers from multiple industries.
DSR Swiss Precision Machining Capability
- Machining Parameters
| Item | Information |
| Service Responsibility | In-house machining |
| Bar Stock & Part Dimensions | Length: 2-20mm Diameter: 5-150mm |
| Dimensional & Geometric Tolerances | 0.01mm |
| Surface Roughness | Ra 0.4-0.8 |
| Delivery time | 25~35 days |
2D Drawing Format: PDF, DWG, DXF;
3D Model Format: STEP, IGES, STL, Parasolid.
DSR can sign a non-disclosure agreement (NDA) with you, clearly stipulating that customer design files are only used for processing in this project. Moreover, in terms of internal management, drawings and technical data are only accessible to project-related engineering and production personnel. After the project ends, relevant design files can be archived and isolated or completely deleted according to customer requirements.
The comparison between the two is as follows:
| Aspect | Swiss Machining | Conventional Machining |
| Workpiece Support | Guide bushing provides continuous support close to the cutting zone | Workpiece is fixed in a chuck with no support along the extended length |
| Workpiece Movement | Workpiece slides axially through the guide bushing | Workpiece remains stationary; only the tool moves |
| Vibration & Deflection | Minimized due to constant support near the cutting point | Higher risk of vibration and deflection, especially on long, slender parts |
| Achievable Tolerance | ±0.005mm | Typically wider tolerance ranges on long or slender parts |
| Multi-Operation Integration | Turning, milling, and drilling combined in a single setup | Often requires separate setups or secondary operations |
| Batch Consistency | High, due to reduced repositioning and single-setup processing | Relies more on repeated setups, increasing variation risk |
Swiss screw machining is another common term for Swiss machining technology. This process employs a sliding headstock and guide bushing structure. The workpiece will pass axially through the guide bushing and receive continuous support near the cutting area.
Yes, DSR is fully capable of handling both small- and large-volume parts production. Our factory can efficiently manufacture the parts our customers need while ensuring product quality. We have ample resources and technical expertise to ensure that we can successfully fulfill every order.
