--- title: "Precision Turning/Milling | NN, Inc." description: "NN manufactures components used for safely connecting high voltage electrical devices commonly used in electrical vehicles and energy storage systems." canonical: "https://www.nninc.com/technologies/precision-machining/precision-turning-milling-2/" last_updated: "2024-08-02T21:43:32+00:00" --- # Beyond Reliable Precision Turning/Milling ## The precision capabilities to meet your component requirements. NN Inc. has the precision turning/milling capability that can optimally manufacture most components. Equipment range from mechanical multi-spindle screw machines, rotary transfer machines multiple types of CNC turning and mills. We have experience with high or low volume, simple or complex, made from many different metals alloy includes high and low carbon steel, stainless steels , aluminum and copper alloys. NN Inc engineers can develop an optimal cost process to meet your production requirements. Our manufacture experience helps our customer improves their component’s design and implement new technologies when needed. ## Mechanical Multi-Spindle Screw Machine NN Inc has 6 and 8 spindle cam operated screw machines are ideal for high volume component requirements. Special features like cross holes, threading, slot milling, polygon cutting, and more are available. | **Component sizes** - Diameter: up to 20mm - Length: up to 100mm | **General Tolerances** - OD: – +/- 0.020 mm - ID: +/- 0.020 mm - Position : 0.030mm | | --- | --- | Tighter tolerance can be achieved depending on datums and designs. Screw machines produced parts complete or a blank for a multiple step process flow. ## Multi-Spindle CNC Screw Machine NN Inc has 6 and 8 spindle with both a fixed or sliding head stock CNC Multi-spindle crew machines. This machine are ideal for high volume components with a high number of features. Special features like cross holes, threading, slot milling, and more are available. | **Component sizes** - Diameter: up to 40mm - Length: up to 300mm | **General Tolerances** - OD: – +/- 0.015 mm - ID: +/- 0.0075 mm - Position : 0.030mm | | --- | --- | Tighter tolerance can be achieved depending on datums and designs. CNC Multi-spindle Screw machines produced parts complete or a near finished blank for a multiple step process flow. ## CNC Swiss Machine NN Inc CNC Swiss machine are generally bar feed with 1 or 2 spindles. This type of machine are capable of drilling cross hole, milling slots and other features, and threading. Ideal for complex featured components to complete in one step. | **Component sizes** - Diameter: up to 40mm - Length: up to 300 mm | **General Tolerances** - OD: – +/- 0.015 mm - ID: +/- 0.0075 mm - Position : 0.030mm | | --- | --- | Tighter tolerance can be achieved depending on datums and designs. CNC Swiss Machines are scalable to meet many different volume requirements economically. ## Horizontal Rotary Transfer Machines NN Inc has two types of rotary transfer machines horizontal with 12 to 16 stations and vertical with up to 24 stations. Machines can either be bar fed or with blanks and can use hexagonal bars. Many types of shafts are made on Rotary transfer machines. | **Component sizes** - Diameter: up to 45 mm - Length: up to 150 mm | **General Tolerances** - OD: – +/- 0.015 mm - ID: +/- 0.025 mm - Position : 0.080mm | | --- | --- | Tighter tolerance can be achieved depending on datums and designs. Ideal for high volume of larger parts. The variety of station tool also allow for components with high feature counts. ## Horizontal Rotary Transfer Machines NN Inc has two types of rotary transfer machines horizontal with 12 to 16 stations and vertical with up to 24 stations. Machines can either be bar fed or with blanks and can use hexagonal bars. Many types of shafts are made on Rotary transfer machines. | **Component sizes** - Diameter: up to 45 mm - Length: up to 150 mm | **General Tolerances** - OD: – +/- 0.015 mm - ID: +/- 0.025 mm - Position : 0.080mm | | --- | --- | Tighter tolerance can be achieved depending on datums and designs. Ideal for high volume of larger parts. The variety of station tool also allow for components with high feature counts. ## Multi-Axis CNC Turning Centers NN Inc has Multi-Axis CNC Turning Center with wide ranges of capabilities making them well suited for Low volume high mix components. Machines are capable of drilling, milling, hobbing, broaching and skiving. | **Component sizes** - Diameter: 8 to 50mm - Length: 60 -170mm | **General Tolerances** - OD: +/- 0.010mm - ID: +/- 0.010mm - Position : 0.050mm | | --- | --- | Tighter tolerance can be achieved depending on datums and designs. Multi-Axis CNC Turning Machines are scalable to meet many different volume requirements economically. ## Twin Spindle Multi-Tasking CNC Turning Centers Multi-tasking CNC machines are highly versatile lathes with the capabilities to machine highly complex components. These machine can combine turning and milling operations to make efficient single step process. | **Component sizes** - Diameter: Up to 51 mm - Length: Up to 170 mm | **General Tolerances** - OD: +/- 0.010 mm - ID: +/- 0.010 mm - Concentricity : 0.020 mm | | --- | --- | Tighter tolerance can be achieved depending on datums and designs. Multi-Tasking CNC Turning Machines are scalable to meet many different volume requirements economically. ## Vertical Machining Centers NN Inc many vertical machining centers to support many different product groups we manufacture. These machines are highly flexible and allow for a large tool count to produce complex components with precision. | **Component sizes** - X-Axis: – up to 1300 mm - Y-Axis: – up to 530 mm - Z-Axis: -up to 510 mm | **General Tolerances** - OD: – +/- 0.010 mm - ID: +/- 0.010 mm - Position : 0.050mm | | --- | --- | Tighter tolerance can be achieved depending on datums and designs. Ideal for low volume and mix production of medium to large parts. ## Micro-Milling NN Inc. can reach the next level of tolerance accuracy with our micro-milling capabilities. Micro Milling is performance is a tightly climate-controlled room segregated for other production to eliminate outside environmental influences. | **Component sizes** - X-Axis: – up to 650 mm - Y-Axis: – up to 650 mm - Z-Axis: -up to 260 mm | **General Tolerances** - Position : 0.0018 mm - Feeding: 0.0001 mm - Cutting: 0.0010 mm | | --- | --- | Machine have internal measurement capabilities combined with fixturing and our internal tool making knowledge allows us to meet the tightest tolerances. ## Hard Turning NN Inc. uses our Hard Turning capability to reduce the tolerance on diameters or qualify surfaces after heat treating. Hard turning is used as a lower cost alternative to grinding or when a feature design prohibits griding. It can be used for hardnesses up to 64 Hrc. | **General Tolerances** - OD: +/- 0.010mm - ID: +/- 0.010mm - Length: +/- 0.020mm - Flatness: 0.005 mm - Finish: 1.0 Rz | | --- | Hard turning is scalable to meet production needs. It can be used on ID, OD, and or a surface to remove heat treat distortion. ## Contact Us and See What We Can Create Together [Contact Us](https://www.nninc.com/contact/) [![NN, Inc.](https://www.nninc.com/wp-content/themes/nninc/images/logo.svg)](https://www.nninc.com/) ## NN, Inc. 6210 Ardrey Kell Rd. 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