CNC Precision Parts  Manufacturers, Traders, Suppliers

We, GLEICH Aluminiumwerk GmbH & Co. KG, are a leading manufacturer of CNC precision parts. With many years of experience and state-of-the-art technology, we produce high-quality precision parts for various industries. Our precise manufacturing methods and quality controls ensure the absolute accuracy and reliability of our products.
Our CNC precision parts are characterized by their high dimensional accuracy, durability and excellent surface quality. Thanks to our highly qualified team and our advanced machines, we are able to realize even the most demanding projects on time and according to the individual requirements of our customers. We work closely with our customers to develop customized solutions and exceed their expectations. Rely on our expertise and quality when it comes to CNC precision parts.

• CNC precision parts made of aluminium, plastic and steel
• Production according to drawing or sample
• Prototype construction and series production possible
• Tolerances up to +/- 0.01 mm
• Surface finishing such as anodizing, painting or powder coating possible
• Used in various industries such as automotive, electrical engineering and mechanical engineering
• Experience and know-how for over 50 years
• Modern machinery with 3- to 5-axis milling centers
• Quality management according to ISO 9001:2015 certified
• Personal advice and individual solutions

• Aerospace industry
• Medical technology
• Automotive industry
• Electrical engineering
• Mechanical engineering
• Optics industry
• Automation technology
• Food industry

We are specialized in the production of precision turned parts, short and long turned parts on CNC short and long lathes. CNC machining and production of small assemblies round off our
manufacturing possibilities of a complete machining;

Our qualified experts manufacture for you ...

...
Turning and milling parts according customer requirements (drawing,
sketch, sample) on state of the art CNC lathes or milling machines made
from:

• steel, stainless steel
• brass, red bronce, bronze
• aluminium
• castings
• as well as all further machinable materials (metals).

A quality management system is certified according to DIN EN ISO
9001:2008 and enables us to meet your highest quality requirements.
Besides, reliable highly precise measuring instruments combined with
the high competence of our specialists guarantee an optimum quality
check of our products.

We have a long standing experience in manufacturing of precision parts for:

• Products of the measurement and control technology
• Products of the elektronics industry
• Medical devices
• Security devices
• Fittings for gas and heating installation
• Household appliances, gas stoves, heating technology
• Automotive industry

We can base it on a sketch or an idea from the customer. Create products that meet or even exceed expectations for customers. We specialize in producing various assembly parts, regardless of the difficulty level. As long as you have your needs, we can meet them and customize your exclusive products!

We have CNC processing machines, sheet metal processing machines, profile processing machines, assembly factories, turning processing machinery, injection mold design factories, CNC lathes, etc., with nearly 30-50 units of each machine. We also have dedicated technical consultants, and during the production process, whether you want to change the drawings or design the drawings, professional designers and design consultants will follow up and modify them.

Life, cleaning, industrial or direct sales, customized according to customer needs.

CNC precision parts are mechanical parts manufactured by CNC machining technology with high precision, high complexity and strict tolerance requirements. Its core feature is to rely on computer digital control to ensure the accuracy, consistency and repeatability of the processing process

It can be divided into four technical types: CNC turning, CNC milling, multi-axis machining, slow wire cutting

Typical Applications:
Aerospace: Engine mounts, landing gear components
Medical: Surgical instruments, implantable device housings
Automotive: Transmission parts, EV battery enclosures
Industrial: Hydraulic valves, robotic arm end effectors"

Precision machining is a manufacturing process in which raw materials are processed into parts or products with tight dimensional tolerances, complex geometries and excellent surface quality through high-precision equipment and technology. Its core objective is to achieve micron-level (μm) or even nanometer-level (nm) precision, and it is widely used in high-end manufacturing fields.
Precision machining is a manufacturing process in which raw materials are processed into parts or products with tight dimensional tolerances, complex geometries and excellent surface quality through high-precision equipment and technology. Its core objective is to achieve micron-level (μm) or even nanometer-level (nm) accuracy, widely used in high-end manufacturing areas, our company has a high-precision five-axis machining process and high-precision testing equipment, which makes our products processed with an accuracy of up to ± 0.01 per cent.

Machining Flow and Process
Machining process of CNC machining centre
CAD design and process analysis
Use CAD software to create a three-dimensional model of the part, and combined with engineering requirements for process analysis, to determine the machining allowance, key dimensions, surface roughness and tolerance requirements.
CAM programming
CAD model into the CAM system, tool path planning, machining sequence arrangements and parameter settings, to generate G code files. This process requires comprehensive consideration of key parameters such as cutting speed, feed, depth of cut and backstroke.
Machine setup and clamping
According to the machining plan to select the appropriate machine tools and fixtures, zero calibration and tool loading, to ensure that the machining centre of the coordinated operation of the various systems.
Test cutting and simulation
Use simulation software (e.g. Vericut, etc.) to preview the generated CNC programme, detect possible collisions, empty stroke or overtravel problems, and ensure that the programme is error-free before test cutting.
Formal processing and post-processing
After formally put into production, surface treatment, testing and inspection of machined parts are carried out to ensure that the parts meet the design requirements.
FUDANPRESS.COM
EXP.LNC.EDU.
Key Technical Parameters
In CNC machining centres, the following parameters have a significant impact on machining quality and efficiency
Spindle speed and cutting speed
The spindle speed should be determined according to the diameter of the workpiece and the material characteristics, to ensure the best cutting condition between the tool and the workpiece.
Feed rate
Defines the distance per transfer of the tool or workpiece, which directly affects the cutting surface quality and machining time.
Depth of Cut and Back Eating
Reasonable selection of the depth and width of a single cut, both to improve productivity, but also to ensure that no excessive cutting forces lead to vibration or thermal deformation.
Tool parameters and coatings
Selection of suitable material tools (such as high-speed steel, carbide, ceramic, etc.) and corresponding tool coatings can help extend tool life, improve cutting efficiency and ensure machining surface quality.

Our various processing technology main production products include: equipment spare parts, product shells, mechanical parts, chassis cabinet shells and so on. These products are widely used in intelligent security, 3C, automotive, medical, smart grid monitoring and other fields.

CNC (Computer Numerical Control) machining centers are advanced manufacturing machines that automate the machining process with high precision, efficiency, and repeatability. These machines are widely used in industries such as aerospace, automotive, medical, and general manufacturing to produce complex parts with tight tolerances.

CNC (Computer Numerical Control) machining centers are automated machine tools capable of performing high-precision milling, drilling, boring, tapping, and other machining operations with minimal human intervention. These systems rely on programmed G-code instructions to control spindle movement, tool changes, and workpiece positioning, ensuring repeatability and accuracy in industrial manufacturing.

Computer Numerical Control (CNC) milling is a subtractive manufacturing process that uses computerized controls and rotating multi-point cutting tools to remove material from a workpiece, shaping it into a custom-designed part or product. CNC milling machines operate with high precision, repeatability, and efficiency, making them indispensable in various industries. From aerospace to medical devices, CNC milling enables the production of complex geometries with tight tolerances. This article explores the key applications of CNC milling across different sectors.

We provide high-precision and customized solutions for a wide range of industries. With the most advanced CNC machine tools and years of experience, we can manufacture complex aluminum, steel, stainless steel and plastic components as well as sand molds and die-castings according to the different needs of customers.

• High strength and low weight
• Tolerances of +/- 0.01 mm possible
• Various surface treatments such as anodizing or painting possible
• Used in the automotive industry, aerospace, electronics and medical technology
• Custom-made products according to customer requirements possible

• Automotive industry
• Aerospace
• Electronics
• Mechanical engineering
• Medical technology
• Energy technology
• Optics
• Toolmaking
• Research and development

Properties
Strength: Ductile iron exhibits high tensile strength, comparable to that ofsteel, making it suitable for heavy-duty applications.
Ductility: It has good ductility, meaning it can deform without breaking,
which allows it to absorb impacts and stresses better than other types of castiron.
Toughness: It has higher impact resistance and toughness, making it useful in
applications where materials need to endure significant stress or shock.
Machinability: Ductile iron is generally easier to machine than other cast iron
types, allowing for precise and complex castings.

Lathe parts are widely evaluated in electronic appliances, hardware tools, hardware and other industries. With their precision processing characteristics, they meet the high-quality requirements for parts processing in these industries. Whether it is axis parts (such as shafts, gears), end face and inner surface parts (such as bearings, valve cores), or complex surfaces of revolution (such as crankshafts, gear worms) and threaded parts (such as bolts, bolts)

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

aluminum alloy processing parts : can process into kinds of complex shapes according to drawings .
Lightweight yet strong (compared to steel).✔ Excellent corrosion resistance (especially anodized or coated).✔ High precision (tolerances down to ±0.01mm achievable).✔ Good thermal & electrical conductivity (for heat sinks, electrical housings).✔ Recyclable & sustainable (lower environmental impact than many metals).

CNC Machining (Computer Numerical Control Machining) is a manufacturing process that uses pre-programmed computer software to control machine tools (e.g., mills, lathes, routers) to remove material from a workpiece, creating precise components with high accuracy and repeatability. This subtractive manufacturing method is widely used for producing custom parts with complex geometries, tight tolerances, and high surface finishes, suitable for both prototyping and low-to-medium volume production.
Key characteristics of CNC machining include:

• High Precision: Capable of achieving tolerances as tight as ±0.001mm (0.00004 inches) for precision components.
• Material Versatility: Works with a wide range of materials, including metals (aluminum, steel, titanium, copper) and non-metals (plastics, composites, wood).
• Design Flexibility: Can machine intricate shapes, deep cavities, threads, and fine details that are difficult to produce by hand or with manual tools.
• Automation: Reduces human error through computer-controlled operations, ensuring consistency across multiple parts.

1. CNC Machining Processes

• Milling:

• End Milling: Uses rotating multi-tooth cutters to machine flat surfaces, slots, and 3D contours (3-axis, 4-axis, or 5-axis machines for complex geometries).
• Face Milling: Removes material from flat surfaces to achieve smooth finishes.
• Plunge Milling: Creates deep cavities or holes by plunging the cutter vertically into the workpiece.

Turning/Lathe Machining:

• Rotates the workpiece while a stationary tool removes material to produce cylindrical parts (shafts, bushings, threads).
• Includes CNC lathes with live tooling for milling operations on rotational parts.

Drilling & Tapping:

• Drills holes and taps threads for fastener installation (automated via CNC programs for precise positioning).

Grinding:

• Uses abrasive wheels to achieve ultra-precise dimensions and mirror-like surface finishes (e.g., for aerospace components).

Electrical Discharge Machining (EDM):

• Non-traditional machining using electrical discharges to erode conductive materials, ideal for hard metals and intricate molds.

2. Materials

• Metals:

• Aluminum Alloys: Lightweight, corrosion-resistant, easy to machine (common in aerospace and automotive parts).
• Steel (Carbon/Stainless): High strength, used for structural components (e.g., gears, shafts).
• Titanium Alloys: Strong, heat-resistant, and lightweight (critical for aerospace and medical implants).
• Copper/Bronze: Excellent conductivity, used for electrical components.

Non-Metals:

• Plastics: ABS, PVC, PEEK, Acrylic – ideal for prototypes and low-weight parts (e.g., gears, housings).
• Composites: Carbon fiber, fiberglass – machined for high-strength, lightweight components (aerospace, sports equipment).
• Ceramics: Machined for high-temperature and wear-resistant applications (industrial tools, electronics).

3. Design Considerations

• Tolerances: Specify achievable tolerances based on material and machine type (e.g., ±0.05mm for general machining, ±0.001mm for precision EDM).
• Tool Accessibility: Avoid deep, narrow cavities or sharp internal corners that may require specialized tools.
• Surface Finish: Define Ra values (e.g., 1.6μm for milled surfaces, 0.2μm for ground surfaces) and select appropriate machining strategies.
• Material Grain Direction: Align part features with the material’s grain to maximize strength (critical for metal components).
• Tool Path Optimization: Minimize material waste and cycle time through efficient CNC programming (e.g., using CAM software like Mastercam, Fusion 360).

4. CNC Machine Types

• 3-Axis Machining Centers: Basic milling machines for 2D and simple 3D parts.
• 4-Axis/5-Axis Machining Centers: Add rotational axes (A, B, or C axes) for complex 3D contours and simultaneous multi-surface machining.
• CNC Lathes: Single-spindle or multi-spindle machines for rotational parts, with optional Y-axis for advanced turning/milling combinations.
• Swiss-Type Lathes: Specialized for small, high-precision parts (e.g., medical screws, watch components) with minimal material waste.

5. Quality Control

• Dimensional Inspection:

• CMM (Coordinate Measuring Machine) for complex geometries.
• Calipers, micrometers, and optical comparators for critical dimensions.

Surface Finish Testing: Profilometers to measure Ra/Rz values.Material Testing: Tensile, hardness, and metallographic tests to ensure material properties meet specifications.Process Validation: First-article inspection (FAI) and in-process checks to verify compliance with ISO 9001, AS9100 (aerospace), or IATF 16949 (automotive) standards.

1. Aerospace & Aviation

• Structural components: Wing brackets, engine mounts (titanium/aluminum alloys for strength and weight reduction).
• Turbine parts: Blisks (bladed disks) and compressor components (5-axis machining for intricate airfoil shapes).
• Avionics: Electronic enclosures and heat sinks (precise machining for tight fits and thermal management).

2. Medical Devices

• Implants: Hip/knee prosthetics, spinal screws (titanium/PEEK for biocompatibility, machined to strict tolerances).
• Surgical instruments: Forceps, scalpels, and endoscopic components (stainless steel for corrosion resistance and hygiene).
• Diagnostic equipment: Custom housings and precision parts for MRI/CT scanners.

3. Automotive Industry

• Engine components: Cylinder heads, transmission gears (steel/aluminum, machined for high tolerances and surface finish).
• Chassis parts: Suspension brackets, steering components (aluminum for lightweighting, steel for load-bearing structures).
• Prototyping: Low-volume production of custom parts for concept cars or racing applications.

4. Electronics & Semiconductors

• Heat sinks: Complex aluminum/copper fins for efficient thermal dissipation in servers and consumer electronics.
• PCB fixtures: Precision-machined brackets and enclosures for printed circuit boards (PC/ABS, aluminum).
• Semiconductor tools: Wafer carriers and masks (ultra-precise machining for nanometer-level tolerances).

5. Industrial Equipment

• Heavy machinery parts: Gearboxes, valves, and pump housings (cast iron/steel for durability).
• Tooling: Injection mold cores/cavities, extrusion dies (hardened steel machined via EDM for long life).
• Robotics: Joints, links, and end-effectors (aluminum/composites for high-speed, low-inertia motion).

6. Consumer Goods

• Electronics housings: High-end smartphone frames (anodized aluminum, machined for seamless finishes).
• Sporting goods: Golf club heads (titanium), bicycle components (carbon fiber/aluminum for strength and weight).
• Luxury products: Watch cases, jewelry components (tungsten, stainless steel, or precious metals).

7. Energy & Renewable Resources

• Oil & gas: Valves, connectors, and pipeline components (nickel alloys for corrosion resistance in harsh environments).
• Wind energy: Gearbox parts, turbine brackets (steel/magnesium, machined for large-scale structural integrity).
• Solar energy: Mounting brackets and precision components for solar tracking systems (aluminum for weather resistance).

Various materials forging: Aluminum, Steel , Brass,stainless steel forging.

Customized precision machining parts. CNC (Swiss) laths and Milling centers (4 axes) to make the parts. Materials are based on Stainless steel, Carbon steel, Brass, Aluminum alloys, plastic...

The parts are customized. Most of them are used on Automotive, construction machinery, engineering machinery, Agricultural machinery, Medical equipment, Precision instruments and other equipment field.

CNC precision parts are high-precision components that are manufactured using Computer Numerical Control (CNC) technology. This technology uses computer programs to automatically control the movements and operations of machine tools to enable precise cutting and machining of materials.
In the CNC precision machining process, a numerical control program is first created based on the design requirements of the part. The CNC machine then performs operations such as cutting, drilling and milling on materials such as metal or plastic according to the program specifications to produce precision parts with tight tolerances.
CNC precision parts are widely used in industries such as aerospace, automotive, medical technology and electronics. These industries place high demands on the precision and consistency of parts, which can be met by CNC precision machining. For example, in the aerospace industry, CNC precision machining is used to manufacture engine components and structural parts; in the medical sector, it is used to produce surgical instruments and implants.
Overall, CNC precision parts play a key role in the modern manufacturing industry. Their properties such as high precision and efficiency make them an indispensable component in various industries.

CNC precision parts refer to high-precision components that are manufactured using computer-controlled production techniques, whereby complex geometries and tight tolerances are implemented exactly; this precision enables broad use in industries such as aerospace, the automotive industry, medical technology, electronics and toolmaking, whereby the high level of accuracy and reproducibility not only meets the requirements of high-performance products, but also reliably supports both customized and series production processes.

• We have 30-year experience in the machining industry and ISO9001 and 14001 certifications.
• We have 5-axis CNC machines, 3D CMM, and other advanced production tools.
• We have the best engineers and the ability to develop our own automated production line.
• We are middle-size company and adaptive to the needs of different customers.
• We have mature ERP and reliable QC systems to ensure the most satisfying outcomes.