Core Machining

CNC Turn-Mill for Complex Precision Components

Turning and Milling in One Setup for Maximum Accuracy

Zhuocheng provides CNC turn-mill machining for parts requiring both turned and milled features. By combining operations in a single setup, we reduce handling, improve positional accuracy between features and produce complex multi-feature parts efficiently — all to customer drawings.

CNC Turn-Mill
Ø10–200 mmTypical turning diameter
Up to 500 mmTypical machining length
±0.01 mmDrawing-dependent tolerance
5-axisTurn-mill centers
Why CNC Turn-Mill?

Why CNC Turn-Mill?

Understanding when and why to choose cnc turn-mill for your parts.

  • Single-Setup Machining

    Turning, milling, drilling and tapping completed in one setup — reducing handling and improving positional accuracy.

  • Multi-Feature Capability

    Complex parts with turned OD, milled flats, drilled holes and threaded features produced efficiently.

  • Engineering Review

    Drawings reviewed for manufacturability, feature access and process optimization before production.

When CNC Turn-Mill Makes Sense

Key characteristics that indicate this process is the right fit for your part.

Multi-Feature

Shafts

Turned + milled + drilled features

Complex

Housings

Turning + milling in one setup

Valve

Components

Internal + external geometry

Positional

Accuracy

Feature-to-feature control

CNC Turn-Mill Capability

Real parameters from our confirmed production range — not placeholder values.

CNC Turn-Mill Capability
Ø10–200 mm
Typical turning diameter
Up to 500 mm
Typical machining length
±0.01 mm
Drawing-dependent tolerance
5-axis
Turn-mill centers
Materials Stainless Steel, Carbon & Alloy Steel, Aluminum, Brass & Bronze, Titanium

* Actual achievable tolerance and surface finish depend on material, geometry, drawing requirements and machining process.

Products

What We Manufacture with CNC Turn-Mill

Product families and component types we produce with this process — made to customer drawings.

View CNC Turn-Mill Parts

Turn-Mill Combines Turning and Milling

Secondary and in-process features available within this manufacturing route.

Milling

Flat milling, slot milling and profile milling on turned parts.

Drilling

Cross-drilling, axial drilling and multi-angle hole features.

Tapping

Internal threaded features with standard or custom thread profiles.

Boring

Precision boring for internal diameter control.

Threading

External and internal thread turning.

Grooving

Precision grooves, O-ring grooves and retention features.

Materials for CNC Turn-Mill

Common materials we routinely machine for this process.

Stainless Steel

303 / 304 / 316 / 17-4 PH

Carbon & Alloy Steel

1045 / 4140 / 4340

Aluminum

6061 / 7075

Brass & Bronze

C3604 / C93200

Titanium

Grade 5

Other materials available based on drawing and application requirements.

CNC Turn-Mill in Practice

An anonymized example showing how this process solves a real manufacturing challenge.

Brass Valve Body Component

Brass Valve Body Component

Application
Industrial fluid control
Material
Brass C3604
Challenge
Valve body with internal thread, external hex, cross-drilled port and sealing groove — all in one part.
Process
Turn-mill center completing turning, milling, drilling and threading in a single setup.
Result
Tight positional accuracy between internal thread and cross-drilled port, stable repeat production.

Quality Control for Precision Machined Parts

Every precision part goes through a structured quality control process — not just final inspection.

View Full Quality System
  1. 01 Incoming Material

    Material and certificate verification

  2. 02 First Article

    Critical dimensions and features checked

  3. 03 In-Process QC

    Process stability and critical dimensions

  4. 04 Final Inspection

    Final dimensional and appearance checks

Inspection Equipment: CMM · Optical Measurement · Micrometers · Thread Gauges · Roughness Tester

FAQ

Frequently Asked Questions

What are the advantages of turn-mill machining?

Turn-mill completes turning, milling, drilling and tapping in one setup, reducing handling between operations and improving positional accuracy between features.

What diameter range can you handle?

Typical turning diameter is Ø10–200 mm with machining length up to 500 mm.

Can you produce parts with both internal and external features?

Yes. Turn-mill centers can produce parts with turned OD, milled flats, drilled cross-holes, internal threads and other complex features.

What is the typical tolerance?

Typical tolerance is ±0.01 mm, drawing-dependent. Tighter tolerances may be achievable depending on geometry and material.

NEXT STEPHave a Turn-Mill Part Drawing?

Send us your drawing, material and quantity. Our engineering team will review the part and recommend the appropriate turn-mill process.

Send RFQ