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Engineering Export · HS 8466.93

Turn-Mill Components Supplier from India — Single Setup

Complex turned and milled components completed in a single setup on turn-mill centres with C, Y and B-axis live tooling. Every feature machined from one datum, with full dimensional inspection on every first article.

IATF 16949 ISO 9001 PPAP Level 3 CMM Inspected Material Traceability RoHS Compliant
Turn-Mill Components Export from India export from India
At a Glance
1 Setup
Done-in-one
C / Y / B-axis
Live tooling
±0.005mm
Achievable tolerance
FAI
Every first article

Why Turn-Mill — One Setup, One Datum

Turn-mill machines turn and mill on the same machine without unloading the part. The commercial case is simple: every time a part moves between machines, positional error creeps in between features and handling cost goes up.

Turn-Mill vs Separate Operations
FactorTurn-MillTurning then Milling
SetupsOneTwo or more
Feature-to-feature accuracyAll features share one datumError accumulates across setups
Handling & queue timeMinimalParts wait between machines
Machine hour rateHigherLower per machine
Total cost on complex partsUsually lowerUsually higher
Best forRound parts with flats, cross-holes, slotsSimple parts needing one extra feature

The machine rate is higher, so turn-mill wins on parts where the milled features are numerous or where their position relative to the turned diameters is critical. For a round part needing a single flat, separate operations may still be cheaper.

Machine Configurations

Turn-mill capability depends on which axes the machine carries. The part geometry determines which configuration is needed.

Configurations
Axis / FeatureWhat It AddsTypical Feature
C-axisIndexed or continuous spindle rotationRadial holes, flats at set angles
Y-axisOff-centre millingKeyways, off-axis holes and pockets
B-axisTilting milling headAngled holes, compound features
Sub-spindleBack-working after part-offComplete both ends in one cycle
Twin turretSimultaneous cuttingCycle time reduction on volume parts

Materials and Capability

Standard Capability
ParameterCapability
Diameter rangeUp to 300mm+ (machine dependent)
Tolerance±0.005mm on functional features
Surface finishRa 0.8 µm achievable
SteelsEN8, EN24, 4140, 4340
Stainless303, 304, 316, 17-4PH
Non-ferrousBrass, aluminium, copper alloys
ExoticTitanium Grade 5, Inconel
Typical partsValve bodies, manifolds, hydraulic fittings, shafts with flats

On specifications: the capabilities above reflect standard specifications for this process. Achievable tolerances and finishes for your part depend on geometry, material and quantity, and are confirmed at quotation after drawing review. Every first article ships with a full dimensional inspection report against your drawing, plus Material Test Certificates for the raw material. We do not ask buyers to take a capability claim on trust.

Inspection & Documentation

Every first article is measured against your drawing before series production begins.

Dimensional Inspection Report
Every critical dimension measured against your drawing
Material Test Certificate
Raw material chemistry and mechanicals, heat traceable
First Article Inspection
AS9102 format available for aerospace
PPAP Documentation
Level 3 available for automotive
Certificate of Conformity
Confirms parts meet drawing and specification
Invoice, Packing List, BL
Full original export set

HS Code depends on material and application — typically 7326.90 (steel), 8481 (valve parts), or 8483 for transmission parts.

How Ordering Works

1
Send your drawing
PDF or STEP, material, tolerances, finish, quantity.
2
DFM review & quote
Manufacturability checked, FOB or CIF quote within 24 hours.
3
First article & report
Sample parts with full dimensional inspection report.
4
Approve & produce
Series production only after you approve the first article.

MOQ is discussed at order stage based on part complexity and material. Payment by advance TT, LC at sight, or DP/DA case by case.

Buyer Questions

What is turn-mill machining?

A turn-mill machine performs both turning and milling on the same machine without unloading the part. The workpiece is turned on the main spindle, then live tooling mills flats, slots, cross-holes and off-axis features, often with a sub-spindle completing the back end. The part is finished in a single setup.

When is turn-mill cheaper than separate turning and milling?

When the part has several milled features, or when their position relative to the turned diameters is critical. The machine hour rate is higher, but eliminating setups, handling and queue time usually lowers total cost on complex parts. For a round part needing one simple flat, separate operations can still be cheaper.

Why does single-setup machining improve accuracy?

Every feature is machined from the same datum. When a part moves between machines, it is re-clamped and re-referenced, and small positional errors accumulate between features machined in different setups. Turn-mill removes that source of error entirely.

What do C-axis, Y-axis and B-axis mean?

C-axis gives controlled spindle rotation for radial holes and flats at set angles. Y-axis allows milling off the part centreline for keyways and off-axis holes. B-axis tilts the milling head for angled holes and compound features. The part geometry determines which configuration is required.

What parts are best suited to turn-mill?

Valve bodies, hydraulic manifolds, fittings, shafts with flats or keyways, and any predominantly round part with multiple milled features. These are the parts where separate operations accumulate the most setup cost and positional error.

How are turn-mill parts inspected?

Every first article is measured on a CMM against your drawing, with a full dimensional inspection report supplied before series production. Material Test Certificates cover the raw material, and AS9102 first article format and PPAP Level 3 documentation are available on request.

Ready to Source?

Get a Quote for Turn-Mill Components Export from India

Technical drawings welcome. FOB or CIF pricing within 24 hours. Third-party inspection available.

Related Products

On This Page
Specifications
ProcessTurn-Mill combined CNC
AxesUp to 9 axis simultaneous
Tolerance+/-0.005mm
Bar DiameterUp to 100mm bar stock
Chuck DiameterUp to 400mm
Milled FeaturesFlats, slots, cross-holes in single setup
MaterialsAll machineable metals
Lead Time15-25 days first article
MOQDiscussed at order stage
Advantage50% fewer setups vs separate operations
Get a Quote in 24 Hours

Technical drawings welcome. FOB or CIF pricing, samples available.

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Certifications
IATF 16949 ISO 9001 PPAP Level 3 CMM Inspected Material Traceability RoHS Compliant
HS Code
8466.93
India Origin
Export Ready