CNC Turning Services
CNC Turning is a precise computer-controlled machining process. The technology uses numerical computer control to manage the movement of cutting tools. The material being machined rotates on the lathe spindle. The cutting tool moves in programmed directions. This method ensures excellent dimensional accuracy for each part.
CNC Partner fulfills turning orders for components of varying complexity. The company uses modern CNC lathes to produce single units and series. An advanced machine park enables machining of parts up to 300mm in diameter. The maximum turning length is 500mm for standard projects. The CAD/CAM system converts digital designs into machine control code.
CNC turning differs from traditional methods by automating the process. A PLC controller monitors all machining parameters in real time. A closed feedback loop adjusts the tool positions. Precision achieves tolerances up to 0.01mm for demanding applications. The process eliminates human errors typical of manual machining.
Features of CNC Turning:
- Excellent dimensional accuracy – tolerances up to 0.01mm for the highest quality products
- High repeatability – every part identical to the original in mass production
- Production speed – automation reduces processing time for individual parts
- Material versatility – capable of machining steel, aluminum, brass, and other metals
- Complex geometries – creating shapes impossible with conventional machining
- Minimal material waste – optimized tool paths reduce scrap
- Consistent surface quality – uniform roughness along the entire length of the part
- Production flexibility – easy transition between different projects
- Quality control – continuous monitoring of parameters during machining
- Cost-effectiveness for series production – low unit costs in volume manufacturing.
Process automation eliminates operator fatigue affecting quality. Computer control ensures identical parameters for every part. CNC machines operate continuously, increasing production efficiency. A sensor system monitors tool wear and replaces tools automatically. Software optimizes cutting paths for maximum material efficiency.
Common materials machined using CNC turning
Aluminum is the most commonly machined metal in CNC turning. The material is characterized by low density and excellent machinability. Its low hardness allows for the use of high cutting speeds. Aluminum’s thermal conductivity is approximately 200 W/(m·K). This property prevents tool overheating during intensive machining.
Stainless steel requires special cutting parameters due to its hardness. The material features higher resistance to corrosion and temperature. Steel’s thermal conductivity is only 15 W/(m·K). Machining requires lower speeds and proper cooling of the cutting zone. Stainless steel is used in the food and medical industries.
- Aluminum alloys – 6061, 6082, 7075 for aerospace and automotive industries
- Structural steel – S235, S355 for machine components
- Stainless steel – 316L, 304 for corrosion-resistant applications
- Brass – easy machining, high-quality surface finish
- Copper – electrical conductivity, electrical components
- Bronze – wear resistance, bearings and bushings
- Titanium – medical and aerospace industries, biocompatibility
- Hardened steel – components requiring high hardness
Each material requires appropriate selection of cutting tools. Cutting parameters are adjusted to the mechanical properties of the metal. Spindle speed, feed rate, and cutting depth affect surface quality. Cooling systems prevent excessive heating of the material and tools.
CNC turning machine park
HAAS SL-30THE
Year: 2008
Through-hole: Ø76, maximum turning diameter: Ø482, maximum turning length: 864
Driven tools including angled heads
Common parts and components produced using CNC turning
Crankshafts are the most complex components produced by CNC turning. These parts convert the reciprocating motion of pistons into the rotational motion of the drive shaft. The dimensional accuracy of crank pins must be between 0.005 and 0.01mm. The surface requires additional heat treatment to increase hardness. Dynamic balancing eliminates vibrations during engine operation. The material must withstand extreme mechanical and thermal loads.
Bearing bushings ensure smooth cooperation of rotating parts in machines. Cylindrical components minimize friction between shafts and mechanism housings. The accuracy of the inner diameter directly affects the tightness of the connection. Dimensional tolerances range from 0.01 to 0.03mm for precision applications. The bushing material is selected based on operating conditions and type of lubrication. The inner surface is often coated with anti-wear layers that reduce friction.
Drive shafts and axle components:
- Crankshafts for internal combustion and compression engines
- Drive axles for vehicles and agricultural machinery
- Spindles for machine tools and machining centers
- Transmission shafts in gearboxes
- Tool shanks for machine holders
- Main shafts for wind turbines and generators
Bushings and bearing rings:
- Clamping bushings for tool mounting
- Guide rings in hydraulic systems
- Flanged bushings for form-fit connections
- Bearing shells in rotating mechanisms
- Spacer bushings for centering components
- Sealing rings in pumps and valves
High-precision threaded components:
- Pressure screws in steel structures
- Precision nuts for drive mechanisms
- Self-tapping screws made of hardened steel
- Adjustment screws in measuring devices
- Lock nuts preventing accidental loosening
Electronic and electrotechnical components require special conductive materials. Pins and connectors made of brass provide low connection resistance. Electrical terminals must withstand multiple connect and disconnect cycles. Dimensional tolerances of pins affect electrical contact quality. Surfaces are often coated with silver or gold layers to increase conductivity.
Pins and journals mechanically connect parts in mechanical systems. These components transfer loads between moving machine parts. The material must have high shear and bending strength. The surface requires hardening to increase wear resistance. Dimensional accuracy affects clearance in joint connections. Lubrication of working surfaces extends the lifespan of mechanical parts.
Specialized and precision parts:
- Injection nozzles in diesel engines
- Adjusting needles in fuel systems
- Hydraulic pistons in linear actuators
- Threaded plugs in pressure tanks
- Tool adapters for CNC machine tools
- Centering pins in tooling
- Locating pins in welded structures
- Magnetic cores in induction coils
Automotive industry components:
- Valve stems in engine cylinder heads
- Synchronizer rings in manual transmissions
- Camshafts in multi-valve engines
- Piston pin connecting the piston to the connecting rod
- Ball joints in steering systems
- Shock absorber bushings in suspension
- Drive shafts in automotive axles
Industrial automation uses precise CNC parts in control systems. These components ensure accurate positioning and control of production processes. Dimensional tolerances are within micrometer ranges for highest precision. Materials must be resistant to vibrations and temperature changes. Surfaces are often anodized or coated with protective layers. Long-term operation requires dimensional stability over time.
The medical industry requires components made from biocompatible materials such as titanium and stainless steel. Orthopedic implant parts must integrate with body tissues. Surfaces require perfectly smooth finishes to eliminate irritation. High-temperature sterilization must not affect mechanical properties. Dimensional precision impacts the functionality and durability of medical implants. Each component undergoes rigorous biocompatibility testing before approval for use.
CNC turning tools
Turning tools with replaceable inserts dominate CNC machining. The design allows for quick replacement of worn blades without disassembling the entire tool. Inserts made of cemented carbides provide long durability. TiAlN or TiN coatings increase resistance to wear and temperature. The blade geometry is adapted to the specific material being machined.
HSS rods are used for machining soft materials. Tools made of high-speed steel cost less than carbide ones. The possibility of multiple sharpenings extends the service life. The blade geometry can be modified according to the needs of a specific application.
- External turning tools – machining cylindrical and conical surfaces
- Boring tools – creating holes with precise dimensions
- Facing tools – machining end surfaces of components
- Threading tools – cutting external and internal threads
- Profile tools – shaping complex profiles
- Cutting-off tools – cutting parts off from a material rod
- Grooving tools – making grooves and undercuts
Tool holders provide rigid clamping of tools in the turret. The clamping system must withstand cutting forces during machining. An automatic balancer compensates for imbalance in rapidly rotating tools. Sensors monitor blade wear and signal the need for replacement. The tool magazine enables automatic change according to the machining program.
CNC turning applications
The automotive industry uses turning to manufacture engine components. Crankshafts require the highest dimensional and surface precision. Pistons must work perfectly with cylinders for proper combustion. Engine valves operate at high temperatures and require durable materials. Transmission components ensure smooth gear shifts in gearboxes.
Aerospace employs CNC turning to produce turbine and jet engine parts. Components must withstand extreme temperatures and stresses. Materials like titanium provide low weight with high strength. Dimensional tolerances are minimal due to flight safety. Each part undergoes rigorous quality control before assembly.
- Automotive industry – drive shafts, pistons, engine valves
- Aerospace sector – turbine components, landing gear parts
- Medical sector – orthopedic implants, surgical instruments
- Machinery industry – machine tool spindles, transmission elements
- Electronics – connector housings, processor heat sinks
- Energy sector – generator rotors, wind turbine components
- Petrochemical industry – high-pressure valves, pump parts
- Railway industry – wheel axles, shock absorber components
- Shipbuilding industry – drive shafts, rudder parts
- Construction industry – steel structure elements, fasteners
Medicine requires biocompatible materials for implants and prosthetics. Stainless steel and titanium do not cause allergic reactions in the body. The surface must be perfectly smooth to avoid tissue irritation. Sterilization demands resistance to high temperatures and chemicals. Dimensional precision affects the functionality and durability of implants.
Electronics uses aluminum for heat sinks and device enclosures. The metal’s thermal conductivity dissipates heat from electronic components. CNC machining ensures precise fitting to the shape of integrated circuits. The surface can be anodized to increase corrosion resistance. The weight of aluminum enclosures is significantly less than steel counterparts.
Fast Order Fulfillment
CNC Partner prepares order quotes within 2-48 hours. The speed of the process results from experience in analyzing technical designs. The CAD/CAM system automatically estimates the machining time for individual operations. The database contains cutting parameters for all processed materials. Tool path optimization shortens the production time for each part.
Order completion times range from 3 to 45 days depending on complexity. Single prototype parts can be ready within a week. Series production requires more time for programming and tool preparation. Simultaneous machining of multiple parts increases efficiency for large batches. Priority handling of urgent orders shortens delivery times for strategic customers.
Fast and Secure Delivery of Completed Orders to Customers in Poland and the European Union
All orders are shipped for maximum customer convenience. Delivery time within Poland does not exceed 48 hours from the end of production. The company cooperates with reputable couriers providing shipment tracking. Parts are packed in special packaging protecting against mechanical damage. Transport insurance covers the full value of completed parts.
Larger contracts are delivered by company-owned transport directly to customers. This solution eliminates the risk of damage during multiple transfers. Drivers have experience in transporting precision mechanical components. Vehicles are equipped with suspension systems minimizing vibrations. Delivery by company transport shortens waiting time for parts at the customer’s location.
Quality Control and Certification
The company implements quality management systems compliant with ISO standards. Control procedures include material inspection before machining and after completion. Calibration of measuring instruments is performed according to schedule. Employee training ensures familiarity with the latest quality standards. Material certificates confirm compliance with industry requirements for specific applications.
Modern Machine Park and Technologies
CNC Partner invests in state-of-the-art CNC lathes from renowned manufacturers. Machines are equipped with automatic tool change systems that reduce setup times. High-speed spindles enable machining at high cutting speeds. Structural rigidity ensures precision even under significant cutting forces. High-pressure coolant systems efficiently remove heat from the machining zone.
CAM software optimizes tool paths for maximum material efficiency. Machining simulations detect potential collisions before production begins. Databases contain verified parameters for all material-tool combinations. Automatic tool wear corrections maintain consistent quality during long production cycles. Remote machine monitoring enables production oversight outside of working hours.
Technical Consulting and Design Support
CNC Partner engineers assist clients in optimizing designs for CNC machining. Their experience allows them to suggest modifications that enhance manufacturability of components. DFM (Design for Manufacturing) analysis identifies potential issues before production starts. Alternative materials can reduce costs while maintaining required properties. Consultations help select tolerances optimal for specific applications.
Prototyping enables verification of designs before mass production. Rapid creation of single units allows for functional testing. Design modifications are implemented based on prototype test results. Technical documentation is prepared in accordance with clients’ industry requirements. Technical support is available at all stages of collaboration from design to delivery.
FAQ: Questions and Answers
Modern CNC lathes provide dimensional accuracy at the level of ±0.01mm for standard applications. For the most precise work, tolerances can be tightened to ±0.005mm. The level of accuracy depends on the type of material being machined, the complexity of the part geometry, and the quality of the cutting tools.
Main factors affecting precision:
- Machine structure rigidity and workpiece clamping
- Quality and wear of turning tools
- Mechanical properties of the material being machined
- Cutting and cooling parameters
The numerical control system minimizes human errors typical of manual machining. Measurement sensors monitor dimensions in real time. Automatic tool corrections maintain consistent accuracy throughout the entire production process.
The lead time for turned components depends on project complexity and production volume. Single prototypes can be completed within 3–5 business days. Parts with simple geometry are produced faster than those requiring multiple machining operations.
CNC program preparation for new projects takes between 2 and 8 hours, depending on complexity. Machine changeovers between jobs take approximately 30–60 minutes. Serial production benefits from shorter unit times thanks to process automation. Companies also offer express services for urgent orders at an additional cost. Advance planning allows for optimal machine utilization and reduced production costs.
CNC turning uses a computer controller to automatically manage all machining parameters. The operator programs the machine according to the technical design, and then the lathe produces the part without additional intervention. Conventional turning requires continuous supervision and manual control of the tools by an experienced turner.
Key technological differences:
- The precision of execution depends on the program, not on the operator’s skills
- Ability to produce identical parts in large series
- Reduction of production time for individual parts
- Automatic quality control during the process
Conventional machines are still used for single production of large parts. CNC lathes dominate in serial production requiring high dimensional repeatability. The choice of method depends on batch size, quality requirements, and available budget.
CNC lathes process a wide range of metal and non-metal materials. The most popular are structural steels, stainless steel, aluminum, and brass due to their good machinability. Each material requires the appropriate selection of cutting parameters and tools.
Metal materials:
- Carbon and structural steel – machine components
- Stainless steel – food and medical industries
- Aluminum and alloys – aerospace and automotive industries
- Copper and brass – electrical components
- Titanium – medical implants and aerospace parts
- Cast iron – industrial castings
Non-metal materials:
- Technical plastics
- Fiber composites
- Technical ceramics
Harder materials require slower cutting speeds and proper cooling. Soft metals can be machined at higher parameters to increase production efficiency.
Drive shafts constitute the largest group of components produced by turning due to their cylindrical geometry. Bearing bushings provide precise guidance for rotating parts in machines. Special screws and nuts require accurate thread cutting according to technical standards.
Popular product categories:
- Tool shanks for machine holders
- Sealing rings in hydraulic systems
- Pins and journals in joint mechanisms
- Adapters and fittings in industrial installations
The automotive industry orders camshafts, valve stems, and gearbox components. The machinery industry uses machine tool spindles and gear transmission parts. Electronics requires pins, connectors, and heat sinks with precise dimensions. Medicine needs implants and surgical instruments made from biocompatible materials with the utmost care.
CNC programming begins with analyzing the technical documentation of the part. A process engineer defines the machining sequence and selects the appropriate cutting tools. CAM software generates toolpaths based on a 3D model or 2D drawing.
G-codes define tool movements, spindle speeds, and feed rates. M-codes control auxiliary functions such as coolant flow or tool changes. Computer simulation verifies the program’s accuracy before actual machining begins. Testing on a single part allows for parameter adjustments before full-scale production. Experienced programmers optimize toolpaths to achieve maximum efficiency and surface quality.