Milled Turned Parts  Manufacturers, Traders, Suppliers

• improved diameter accuracy: the precise grinding leads to accurate holes
• improved positional accuracy: the sharp drill tip cuts softly
• significant increase in the service life of your drills due to uniform distribution of cutting forces
• significant reduction in feed forces thanks to precise, symmetrical pointing
• very fast and easy regrinding: results in a significant reduction in tool costs, e.g. due to higher availability=less downtime.e.g. higher availability=less capital tied up
• no more drilling tool bottlenecks
• significant reduction in drilling tool costs
• rapid amortization of the machine and the drilling tools - and many more advantages...

Your expert for screws, nuts, threaded inserts and precision parts.
We would like to introduce you to alstertaler schrauben & präzisionsteile lothar mewes gmbh. You will find that we are a strong partner for all standard, special and precision parts.

With a high-efficiency integrated mill turn center with milling spindle, turret and 40x tool magazin, we are able to manufacture high-precision (turned-) milled parts.
In terms of materials we process all established standard and quality steels as well as aluminium, cast iron and brass.

Range of services:
The entire range of mechanical processing (turning, milling, drilling, grinding)  as well as the assembly of components and machines.

Precision CNC machined parts, manufactured by computer-controlled mills and lathes, offer tight tolerances, consistent quality, and excellent finishes for demanding applications.

The technical data for CNC machined parts must include precise 2D drawings and 3D models, clearly defining all dimensional tolerances, GD&T, surface finish, and material specifications to ensure manufacturing accuracy and part quality.

CNC machined parts are critical components in high-tech industries such as aerospace, automotive, medical devices, and consumer electronics, providing the precision, complexity, and reliability required for advanced applications and prototyping.

Specializing in CNC Turning, we produce precision cylindrical and rotational parts (shafts, bushings, fittings, etc.) with exceptional surface finishes and dimensional accuracy. Our high-speed CNC lathes (including Swiss-type machines) support a wide range of materials and can integrate secondary operations (drilling, threading, knurling) in a single setup—reducing lead times while maintaining uncompromising quality.

Our custom products are widely applied in different areas, especially in the drones and automotive.

• Automotive industry
• Robotics
• Aerospace & commercial drone industry
• Engineering solutions
• Clean energy; Oil and energy
• Agriculture & heavy equipment industry
• Home Electrical appliances
• Communication industry,etc
• Construction industry

Customize and process parts according to customer requirements (drawings, sketches, samples)
Machinable materials: steel, stainless steel, copper, aluminum, PP、POM、 Titanium, PEEK, and other machinable materials (metal/plastic).

The precise tolerances we can achieve
0.003 | The shaft diameter is less than 6 millimeters and the maximum aperture tolerance is up to 0.003 millimeters.
0.005 | If the shaft diameter is greater than 6 millimeters and the aperture tolerance is 0.005 millimeters.
0.005 | Linearity below 100mm distance, etc., with a tolerance of up to 0.005mm.
0.01 | 100 millimeters or more with a linear tolerance of up to 0.01 millimeters.
0.003-0.005 | A form of tolerance is as high as 0.003-0.005 millimeters
0.01 | The positional tolerance is 0.01 millimeters

Widely used in many fields such as aviation, aerospace, power, chemical industry, environmental protection, food, pharmaceuticals, etc

1. Core Principle & Workflow:
In CNC Turning, the workpiece is secured and rotated by the machine's main spindle. A non-rotating cutting tool, held in a tool turret, is driven along programmable paths (X and Z axes) to precisely remove material. The entire operation is controlled by G-code generated from a part's CAD model.
2. Primary Machine Components:
Headstock & Spindle: Contains the motor that rotates the workpiece.
Chuck: Mounted on the spindle, it clamps the workpiece (common types: 3-jaw self-centering, 4-jaw independent, collet chucks).
Tool Turret: Holds multiple cutting tools and indexes them into position automatically.
Tailstock: Provides live or dead center support for the free end of long workpieces to prevent deflection.
CNC Control Unit: The computer that interprets the program and commands all machine movements.
Bed: The robust base that supports all components.

3. Types of CNC Turning Machines:

Machine TypeKey CharacteristicsIdeal Use CaseHorizontal Turning CenterMost common layout. Spindle is horizontal. Excellent chip fall-away.General-purpose turning of shafts, discs, and sleeves.Vertical Turning Lathe (VTL)Spindle is vertical. Workpiece sits on a horizontal table. Excellent for heavy parts.Machining large, heavy, short workpieces like large flanges, wheels, and rings.Swiss-Type Lathe / Sliding HeadstockThe guide bushing supports the bar stock very close to the tools. The headstock moves (slides).High-precision, long, slender parts (e.g., watch screws, medical pins) in a single setup.Multi-Axis Turning CenterIntegrates "live" rotating tools and additional axes (Y-axis, C-axis on the spindle).Complex parts requiring turned features AND milled flats, drilled holes, or grooves not on the centerline.

4. Common Turning Operations:

OperationDescriptionPurposeFacingTool moves perpendicular to the axis of rotation, machining the end face of the workpiece.Create a flat, smooth reference surface at the part's end.Straight/O.D. TurningTool moves parallel to the axis, reducing the outer diameter of the workpiece.Create the primary cylindrical form.BoringTool enlarges or finishes an existing hole along the inner diameter (I.D.).Achieve precise internal dimensions and finish.DrillingA drill bit, fed along the axis, creates a hole in the center of the workpiece.Create initial through-holes or blind holes.Parting / GroovingA narrow tool cuts into the O.D. or face to create a groove or to sever the finished part from the bar stock.Create sealing grooves, retention rings, or cut off the completed part.ThreadingTool moves in a synchronized path to cut internal or external screw threads.Create functional threads for fastening or assembly.KnurlingA special textured tool is pressed against the rotating part to create a patterned surface.Improve grip for hand-tightened components like knobs or handles.Taper TurningTool moves at an angle to the axis, creating a conical shape.Create sealing surfaces or mating conical fits.

To better understand what the CNC milled turned technology offers, it is helpful to examine the differences between milling and turning.
The CNC milling method involves using computerized controls and spinning cutting tools to remove small pieces of a workpiece in stages. This is accomplished via the procedure. The most common form of CNC machining is the one described here. On the other hand, CNC turning is a type of machining that consists of rotating material bars while holding them in place while a tool attached to the machine removes material to achieve the desired shape. This process is performed on a computer.
Earlier, both of these procedures were conducted in isolation for a significant time. A CNC turning-milling machine, known for its precision and accuracy, can combine the two processes and carry them out simultaneously now. The result of this technique is the creation of a wide variety of geometries and shapes for use with a wide variety of materials, such as metals and polymers.

Milling process
It is necessary to have a know-how of both turning and milling before attempting to comprehend the inner workings of a turn mill machine. CNC milling is a mechanical method that is used to make parts or components that have been specifically developed. This is accomplished by removing material from the workpiece using rotating multi-point cutting tools controlled by a computer. In most cases, three degrees of freedom are included in these systems.
They are not restricted in any way in their movement along the X, Y, or Z axes, even when the workpiece does not move. Milling is better suited for prototyping and producing small runs of products due to the limited dimensions that are possible with this operation.
Turning process
Turning is a manufacturing process that entails holding bars of material in a three or four-jaw chuck and rotating them. At the same time, tools are fed to the piece to remove material until the desired shape and dimension are achieved. This continues until the bar of material has been turned into the desired form. All the work can be done from a single side of the CNC turning center when there is just one turret. However, some turning centers feature a main spindle and a sub-spindle for even faster operation.
In this system, the workpiece is machined on the main spindle and then carried to the sub-spindle, where the task is finished on the opposite side of the part in a single setup. The rapidity of CNC turning operations makes this method particularly well-suited for big production runs that must adhere to stringent deadlines.
In a nutshell, a turn mill is a hybrid CNC machine that combines milling (the rotation of the tool) and turning (the rotation of the workpiece) capabilities into a single, powerful, and adaptable device that is capable of completing complex operations in a shorter amount of time and with higher accuracy than conventional machining methods.

Racing accessories, auto parts, agriculture, greenhouses, hydroponics, aquaculture, fish and vegetable symbiosis, chicken farms, etc.