CNC milling (Computerized Numerical Control Milling) is an automated machining process that is used in the EMS industry primarily for the precise machining of mechanical components such as housings, heat sinks or brackets.
At TPS Elektronik, our CNC milling department turns complex designs into production-ready parts with repeatable accuracy. From machined aluminum housings and heat-sinks to precision fixtures, gear and gearing components, and mixed-material assemblies, we combine multi-axis milling, drilling/tapping, EDM, grinding, deburring, and inspection into one streamlined, single-source technologies approach—so you get quality parts, short lead times, and predictable costs.
What We Do
Core Milling
- High-speed 3- and 4 axis CNC mill cells for prismatic parts and light 5-sided work (3+2).
- High-torque spindles for steels and superalloys; high-RPM spindles for aluminum and plastics.
- Facing milling machine operations (including fly cutter tool finishing) for tight flatness and cosmetic surfaces.
Secondary Ops (In-House)
- Drilling & tapping with rigid cycles; optimized for every tapped hole and compatible tapping screws / machine screws.
- Precision bores, reaming, and countersinking; chamfering and thorough deburring.
- Surface finishing and post-machining processes: bead blast, anodize, plating, painting.
- Complementary processes when geometry demands it: grind machine (surface/cylindrical), wire cutting machine (wire EDM), sinker EDM, and laser marking with cnc laser.
Turning & Hybrid
- Lathe support for shafts, bushings, and turned features on prismatic parts—full cnc milling and turning / cnc turning and milling capability for complete cnc turning parts without multi-vendor handoffs. We also manage lathe tools programming and tool life to protect tolerances.
Materials & Part Types
- Aluminum cnc milling and cnc mill for aluminum: 6061/6082/7075, cast plate, MIC-6; aluminum milling cnc machine profiles held flat and stress-relieved.
- Steels & stainless: tool steels, alloy steels, 304/316; heat-treated workflows for wear and strength.
- Plastics (cnc plastic): POM/Delrin, PEEK, PTFE, Ultem for electrical and thermal applications.
- Specialty: copper, brass, titanium, Inconel—advised by machinability and cost.
Typical deliverables include enclosures, brackets, manifolds, jigs/fixtures, thermal components, gear and gearing blanks, optical mounts, and precision cnc precision machined components for electronics and mechatronics.
Machines, Tooling & Fixturing
- Vertical and horizontal milling machine / horizontal CNC milling machine platforms for throughput and chip evacuation on deep pockets.
- Palletized cells with probing for lights-out efficiency; vacuum and modular fixturing for thin walls.
- Tooling: balanced end mills, indexable facers, and coated drills; carbide drill bits sized to reduce burrs and improve hole quality.
- Digital tool management to control run-out, wear offsets, and tool life—critical for high precision CNC milling machine results.
We run industrial equipment—not a hobby cnc milling machine, cnc mini mill, desktop cnc mill aluminum, tormach cnc mill, or any used cnc mill / used cnc milling machine. If you’re searching “cnc mill for sale,” that’s not us—we’re a manufacturing partner focused on production quality and repeatability.
Programming & Process Control
CAM & Post
- Robust CAM workflows for 3-axis and indexed 4-axis, with verified posts for safe output.
Codes & Cycles
- G code M code CNC programming standards with canned cycles for drilling, tapping, boring, and probing.
- Adaptive toolpaths manage load, heat, and chip evacuation for faster cycles and longer tool life.
Quality
- In-process probing sets datums, adjusts tool wear, and validates features.
- Final inspection with calibrated gauges and CMM on critical tolerances.
Common Programs
- 3 axis CNC milling machine programming templates for pocketing, contouring, facing, and hole patterns.
- 4th-axis rotary routines for radial hole arrays, spline flats, and indexed features.
Tolerances, Finish & Repeatability
- General machining tolerances to ±0.01–0.05 mm depending on geometry and material.
- Flatness, parallelism, and perpendicularity controlled through fixturing and toolpathing.
- Surface finishes from Ra 0.8–3.2 μm typical; cosmetic faces improved via fly cutter tool and fine-step contour passes.
DFM: Designing Parts That Mill Well
- Wall thickness & ribs: keep thin walls ≥ 1.0–1.5× tool diameter for stability.
- Corner radii: inside corners should match available cutter radii (e.g., 1.0–3.0 mm) to avoid tiny tools and long cycles.
- Holes & threads: specify thread class; call out thread depth vs full depth; through-holes lower risk than deep blind tapped holes.
- Workholding: add grip tabs or flat pads; avoid obstructed faces where possible.
- Burr control: let us break edges at 0.2–0.5 mm; we include systematic deburring for consistent assembly.
Industries We Serve
- Electronics & EMS (heatsinks, carriers, precision frames).
- Robotics & automation (structural plates, end-effectors).
- Medical and instrumentation (fixtures, housings, fluidic manifolds).
- Aerospace & defense: if you’re seeking an aerospace CNC machining company, our process control and traceability align with demanding specs.
We regularly collaborate with precision machining companies and OEMs as a cnc precision machine partner for specialty cnc parts production and expert machining metal services for precision parts.
When Milling Meets Other Processes
Some geometries are impossible or inefficient to mill alone:
- Wire cutting machine (EDM) for sharp inside corners and ultra-tight tolerances.
- Sinker EDM for enclosed cavities and fine details.
- Grind machine for flatness, finish, and post-heat-treat accuracy.
- CNC laser for marking/serialization; laser-cut blanks when it cuts cost or lead time.
FAQs
What is precision machinery in the context of CNC milling?
When customers ask what is precision machinery, they’re usually referring to the combination of rigid machine tools, metrology, and process control that allows tight tolerances and excellent surface finish. We employ rigid spindles, thermal control, probing, and certified inspection to achieve this.
CNC router vs milling machine—what’s the difference?
A cnc router vs milling machine differs mainly in rigidity and application. Routers (often gantry-style) excel in wood, composites, and some plastics; mills are heavier, more rigid, and ideal for metals and high-precision features.
Can you produce tapped holes ready for tapping screws?
Yes. We create precise pilot sizes and countersinks/counterbores for tapping screws or machine-screw threads, calling out standards such as ISO/UNC/UNF and depth tolerances.
Do you handle both milling and turning?
Yes—cnc milling and turning / cnc turning and milling are part of our integrated flow. You receive complete parts without juggling multiple vendors.
Do you machine plastics as well as metals?
Absolutely. From POM and ABS to PEEK and PTFE, our feeds/speeds and tooling are tuned for cnc plastic to prevent melting or chatter.
Typical Specs (Guideline)
- Aluminum: walls ≥ 1.0 mm; hole Ø ≥ 1.0 mm; finish Ra 0.8–1.6 μm achievable on cosmetic faces.
- Stainless/Steel: walls ≥ 1.2–1.5 mm; deep features may require reliefs, reaming, or EDM.
- Plastics: generous radii and larger tool engagement to reduce heat.
Quoting & Lead Time
We quote based on material, stock strategy, cycle time, toolpath efficiency, and risk. Send 3D/2D (STEP, Parasolid, DXF, PDF) with quantities and finish. For machined aluminum and plastics, we often propose geometry tweaks that reduce cycle time without sacrificing function.