--- id: "precision-machining-en" title: "Precision Machining | CNC Turning, MC, Swiss-Type and Gear Machining | Zhongde Precision" description: "CNC turning, machining-center operations, Swiss-type machining, gear machining, inspection, finishing and assembly." source: "/en/precision-machining" language: "en" generated: true --- # Precision Machining CNC Turning · Machining Centers · Swiss-Type Machining · Gear Machining We provide integrated manufacturing support from drawing and CTQ review and process planning, through CNC turning, machining-center operations, Swiss-type machining and gear machining, to inspection, surface treatment and assembly delivery. - Coordinated turning, MC and gear processes - Critical dimensions, datums and CTQ control - Machining through finishing and assembly ## Key Figures ### Machining machines 73 ### Machining workshop 1,080 m² ### Main machining processes 4 ### Machining through assembly Integrated ## 01. Precision Machining Capabilities For small and lightweight precision components, we provide CNC turning, machining-center operations, Swiss-type machining, and gear and profile machining—from process planning through stable production. ### Capabilities and Engineering Points #### CNC Turning & Composite Machining For shafts, sleeves, connectors, flanges and rotational parts, combining precision turning with drilling, tapping and lateral machining. ##### Engineering Points - Precision turning and combined operations - Concentrated processes for higher efficiency - Roundness, concentricity and runout control #### Machining Center For multi-face machining of small housings, mounting bases, brackets, valve bodies and precision plate components, with consistent datums and complex contour control. ##### Engineering Points - Designed for small precision structures - Multi-face datum consistency control - Optimized toolpaths and process planning #### Swiss-Type Precision Machining Efficient continuous production for slender shafts, small-diameter connectors and miniature precision parts with stable dimensions. ##### Engineering Points - Stable machining of slender components - Efficient production of miniature parts - Consistent dimensions and surface quality #### Gear & Profile Machining For gears, splines and precision transmission components, with focus on tooth accuracy, fit and assembly stability. ##### Engineering Points - Gear accuracy and meshing control - Spline and special-profile machining - Machining accuracy and assembly stability ## 02. How Should the Machining Process Be Selected? The machining route is selected according to part geometry, datums, material, precision and production volume, balancing process stability, efficiency and manufacturing cost. ### Capabilities and Engineering Points #### Shafts & Sleeves CNC turning / Swiss-type machining - Control Items: Concentricity, roundness, runout and surface roughness ##### Applications - Robot joint shafts - Liquid-cooling valve parts #### Housings & Frames Machining center - Control Items: Datum relationships, hole position, flatness and cavity dimensions ##### Applications - Robot joint housings - Optical module structures #### Plates & Brackets Machining center - Control Items: Flatness, hole position, thin-wall deformation and edge quality ##### Applications - Liquid-cooling mounts - Optical thermal brackets #### Small Slender Parts Swiss-type precision machining - Control Items: Length-to-diameter ratio, deformation, dimensional stability and finish ##### Applications - Robot precision shafts - Optical connectors #### Gears & Transmission Parts Gear machining / CNC composite machining - Control Items: Tooth profile, lead, meshing condition and assembly fit ##### Applications - Robot reducers - Actuator transmission parts #### Multi-Process Components Turning, MC and coordinated operations - Control Items: Datum consistency, tolerance chains, deformation and process transitions ##### Applications - Liquid-cooling housings - Robot functional structures ## 03. From Engineering Review to Stable Production Based on drawing requirements, CTQ characteristics and production targets, the project moves through material confirmation, process planning, first-article validation, pilot production and stable mass production. ### Process Steps #### Drawing & CTQ Review Review dimensions, tolerances, datums, materials, surface requirements and critical quality characteristics to identify manufacturing risks. Engineering review result #### Material & Blank Confirmation Confirm material grade, condition, blank form, machining allowance and required heat treatment or pretreatment. Material and blank plan #### Process & Fixture Design Define machining datums, clamping methods, process sequence, tooling and in-process controls for critical dimensions. Process and fixture plan #### First-Article Machining Machine the first article and verify critical dimensions, geometric tolerances and functional requirements. First-article inspection report #### Pilot Production Validate cycle time, tool life, clamping stability and process capability for critical characteristics through a pilot batch. Pilot and capability report #### Production & Batch Control Run the confirmed process with patrol inspection, sampling inspection, abnormality closure and production batch records. Batch inspection and production records ## 04. Machining Workshop & Main Equipment The machining workshop combines CNC lathes and compound machines, machining centers, Swiss-type equipment and gear-cutting machines to support stable production of rotational parts, small precision structures, gears and special profiles. ### Products and Process Examples #### Machining Production Workshop #### In-Process Inspection ### Engineering Data | Equipment category | Quantity | Main applications | | --- | --- | --- | | CNC Lathes & Compound Machines | 36 | Turning, drilling, tapping, lateral machining and combined operations | | Machining Centers | 25 | Milling, drilling, tapping, cavity and complex-profile machining | | Swiss-Type Equipment | 8 | Batch machining of slender shafts, small-diameter and miniature parts | | Gear-Cutting Equipment | 4 | Precision machining of gears, splines and special profiles | ### Summary #### Machining machines 73 #### Machining workshop 1,080 m² #### Main equipment categories 4 ## 05. Which CTQs Matter Most in Precision Machining? Precision machining requires more than checking individual dimensions. Datum relationships, geometric accuracy, fit, surface condition, deformation and batch stability must be controlled together. - Footer: Quality control should cover first-article approval, in-process inspection, sampling, final inspection and batch records—not only end-of-process inspection. ### Critical Quality Controls #### Datums & Position Align design, machining and inspection datums while controlling hole position, concentricity and relative location. #### Form & Runout Control flatness, roundness, cylindricity, perpendicularity, radial runout and face runout. #### Dimensions & Fit Identify critical dimensions, tolerance zones, fit classes, assembly clearance and interference. #### Surface & Edges Control roughness, tool marks, burrs, sharp edges, chamfers and functional contact surfaces. #### Thin Walls & Deformation Manage wall thickness, clamping deformation, cutting stress, residual stress and dimensional springback. #### Batch Stability Monitor tool wear, dimensional drift, offset compensation, patrol inspection and lot consistency. ### Inspection and Quality Assurance #### CMM Inspection Critical dimensions, position and geometric tolerances #### Optical Projection 2D profiles, hole positions and small structures #### Hardness Testing Material condition and heat-treatment verification #### Torque Testing Assembly function and rotational resistance #### Axial Play Testing Shaft-system clearance and assembly condition #### Dedicated Gauges Rapid verification of batch dimensions and functions #### Process Inspection Dimensional trends and abnormalities during machining #### Final Inspection Shipment approval, batch traceability and records ## 06. Integrated Downstream Operations & RFQ Requirements After precision machining, parts can proceed through deburring, finishing, surface treatment, inspection and assembly. Complete RFQ information enables accurate process, lead-time and cost evaluation. - Process Note: A unified engineering interface coordinates all operations to control process transitions, quality records, lead time and lot consistency. - Rfq Note: For liquid-cooling sealing surfaces, robot bearing fits, gear meshing or optical-module thermal interfaces, define functional requirements, inspection methods and acceptance criteria. ### Process Steps #### Material & Blank Grade, condition, blank form and machining allowance #### CNC Machining Turning, MC, Swiss-type and gear machining #### Deburring & Finishing Burrs, sharp edges, tool marks and functional surfaces #### Surface Treatment Anodizing, coating, printing and other finishes #### Inspection & Reports Dimensions, geometric accuracy and functional checks #### Assembly & Delivery Assembly, packaging, batch records and delivery ### RFQ Requirements #### 2D Drawings PDF / DWG #### 3D Models STEP / IGES #### Material & Condition Grade / heat treatment #### Quantity & Stage Sample / pilot / production #### Dimensions & Datums Tolerance / GD&T / CTQ #### Interfaces & Mating Parts Threads / fittings / fits #### Assembly & Preload Tolerance chain / preload #### Surface Treatment Anodizing / blasting / plating #### Inspection & Validation CMM / runout / full inspection #### Packaging & Traceability Protection / lot / records