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CNC lathe CNC-MW28H for diamond cutting wheels

CNC lathes

Repairing diamond-cut wheels the way they are made.

Damaged diamond-cut surfaces cannot be painted, polished or sanded. They have to be re-cut on a CNC lathe, exactly as in manufacture. Our CNC lathes capture the wheel contour automatically to 1 µ and remove more material only where the damage is.

Book a demonstrationTo the online shop
  • 1 µaccuracy of contour capture
  • 12–28"wheel diameter
  • ~6 monthspayback at 2–4 wheels per day

The machine

What sets our CNC lathes apart

  • Automatic contour capture

    Manufacturers' CAD data is not accessible. The integrated touch probe detects the workpiece position and captures the surface to an accuracy of 1 µ (1/1000 mm).

  • Capture once, use again and again

    Every wheel type is captured once and archived in the database. Customers receive online access to our contour database with several thousand wheel contours of current vehicles.

  • Non-uniform re-cutting

    In the damage zone, usually at the rim lip, more material is removed than on the rest of the face, without a visible transition. Minimal material removal, significantly more repairable wheels.

  • Fully set up by wheel professionals

    All models are delivered complete: cutting tools, contour capture system and OPT2CUT software with annual licence. Commissioning, training and technical support are included.

  • Individually tailored

    Before purchase we analyse your requirements. The training also covers the know-how for pre- and post-treatment that a good result requires.

  • Available immediately

    Professional CNC lathes are available for immediate delivery, by hire purchase from €400 per month, with support, service, maintenance and 24-hour spare parts service.

The models in detail

Four machines for different workshop sizes. All models feature the touch probe for contour capture, the software for non-uniform re-cutting, the contour database, automatic spindle speed control and servo motors on the X and Z axes.

CNC-MW28H

Design
Horizontal
Control
Syntec 6TA CNC control system
Chuck
Manual chuck with 3 or 6 external clamping jaws, wheel diameter 12–28 inch
Spindle speed
50–2000 rpm, automatic spindle speed control
Tool holder
4-position manual tool holder
Machining
Designed for wet machining of alloy wheels
Axes
X and Z axes with servo motors
Noise level
< 70 dB
Electrical connection
7.5 kW / 400 V, 32 A back-up fuse
Dimensions (L × W × H)
2140 × 1600 × 1860 mm
Weight
2500 kg
Conformity
Fully CE compliant
Training
CNC basic training T2 (2 days)
Capacity
20–60 wheels per day, depending on whether the contour is already in the database
Use
Industry and high-volume operations; used in wheel production at the manufacturer etabeta

Wet machining is intended for the CNC-MW28H; in the configurator it was listed as an option (+€2,450).

CNC-MW28H, horizontal CNC lathe for wheels

CNC-MW28TX

Design
Horizontal
Control
Windows control system, multi-touchscreen with wireless mouse and keyboard, MPG (manual pulse generator)
Chuck
Manual chuck with 3 or 6 external clamping jaws, 12–28 inch
Spindle speed
50–1500 rpm, automatic spindle speed control
Tool holder
Electric 4-position turret
Machining
Dry machining
Lubrication
Electronic central lubrication
Axes
X and Z axes with servo motors
Noise level
< 70 dB
Electrical connection
9 kW / 400 V, 32 A back-up fuse
Dimensions (L × W × H)
2280 × 1370 × 2260 mm
Weight
1440 kg
Conformity
German CE marking and risk assessment
Training
CNC basic training T2 (2 days)
Capacity
20–60 wheels per day
Use
High throughput, continuous operation

CNC-MW28X

Design
Vertical
Control
Windows control system, 17 or 22 inch multi-touchscreen with wireless mouse and keyboard, MPG
Chuck
Manual chuck with 3 or 6 external clamping jaws, 12–28 inch
Spindle speed
50–1500 rpm, automatic spindle speed control
Tool holder
Electric 4-position turret
Machining
Dry machining
Lubrication
Electronic central lubrication
Axes
X and Z axes with servo motors, Z axis optionally with dual servo drive
Noise level
< 70 dB
Electrical connection
8.5 kW / 400 V, 32 A back-up fuse
Dimensions (L × W × H)
1350 × 1000 × 1920 mm, footprint 1.35 m²
Weight
900 kg
Conformity
German CE marking and risk assessment
Training
CNC basic training T1 (1 day)
Capacity
At least 12 wheels per day
Use
Small to medium-sized workshops
Shop price
€19,900 net (instead of €24,875), in stock

CNC-MW30V-Mobil

Design
Vertical
Footprint
0.95 m²
Electrical connection
230 V, no three-phase supply required
Payback
From around 2 wheels per day, comparable to the CNC-MW28X
Use
Flexible businesses without a three-phase supply

Further technical data for the CNC-MW30V-Mobil on request.

Models compared

ModelDesignFootprintConnectionTrainingPaybackIdeal for
CNC-MW28XVertical1.35 m²400 V, 8.5 kWT1, 1 dayfrom ~2 wheels/day → approx. 6 monthsSmall to medium-sized workshops
CNC-MW30V-MobilVertical0.95 m²230 Von requestfrom ~2 wheels/day → comparableFlexible businesses, no three-phase supply
CNC-MW28TXHorizontal2280 × 1370 mm400 V, 9 kWT2, 2 daysfrom ~4 wheels/day → approx. 6 monthsHigh throughput, continuous operation
CNC-MW28HHorizontal2140 × 1600 mm400 V, 7.5 kWT2, 2 daysfrom ~4 wheels/day → approx. 6 monthsIndustry, high-volume operations

Payback example: with 20 working days per month and an average of four (MW28X: two) wheels per day, the machine has paid for itself after around 6 months. The assumption is conservative; actual capacity is 20–60 wheels per day (MW28X: at least 12). The basis is a heavily discounted dealer price. We will send you a detailed calculation on request.

Options and packages

Prices from the CNC configurator, net plus 19% VAT. The base price of the machine is stated in the quote.

ItemSelectionSurcharge
Chuck3-jaw chuck (standard)–
Chuck6-jaw chuck+€3,250
MachiningDry machining (standard)–
MachiningWet machining (CNC-MW28H only)+€2,450
Software packageContour optimisation OPT2CUT light+€750
Software packageContour optimisation OPT2CUT pro, non-uniform re-cutting+€1,050
Cutting toolsBasic package I (standard, r = 1.5)+€106.25
Cutting toolsBasic package II (+ drop centre 150 mm, r = 1.5)+€212.50
Cutting toolsBasic package III (+ drop centre 150 mm and 280 mm, r = 1.5)+€395.25
Cutting toolsProfessional package I (holder 180 mm + insert r = 2.5)+€523.09
Cutting toolsProfessional package II (professional package I + 30° drop centre 180 mm, r = 2.5)+€1,203.09
Probe toolsBasic package I (40 mm, r = 1.5)+€82.88
Probe toolsBasic package II (40 mm + 60 mm, r = 1.5)+€199.76
Probe toolsProfessional package I (40 mm, r = 2.5)+€82.88
Probe toolsProfessional package II (40 mm + 60 mm, r = 2.5)+€199.76
TrainingBasic course (1 day)+€1,200
TrainingIntensive course (3 days)+€2,775
SupportCNC hotline and support for 12 months+€365
WarrantyStandard, 1 year–
WarrantyExtended, 2 years+€500
WarrantyPremium, 3 years+€1,000
CommissioningCommissioning on site+€300 plus travel from Frankfurt am Main
ShippingGermany, Austria, Switzerland, Beneluxon request

For the payback calculation, all we need is your net selling price per CNC job and the expected number of wheels per day.

Request a quote

The work on the wheel

How a CNC repair works

  1. 01

    Incoming inspection

    Visual inspection and check for structural damage. Where safety is concerned, nothing is disguised.

  2. 02

    Cleaning and clamping

    The wheel is cleaned and mounted in the manual chuck with 3 or 6 external clamping jaws.

  3. 03

    Contour capture

    The touch probe detects the workpiece position and probes the contour to an accuracy of 1 µ. If the wheel type is already in the database, this step is skipped.

  4. 04

    Contour optimisation in OPT2CUT

    The software smooths the measuring points, extends the contour towards the rim lip if required and defines where more material is removed.

  5. 05

    Re-cutting

    In the damage zone, for example, 0.5 mm; on the rest of the face only 0.1 mm. The cutting pattern is determined mainly by the feed rate and is easy to adjust.

  6. 06

    Clear coating

    The diamond-cut face is sealed with acrylic powder, gloss or matt. The know-how for this is part of the training.

Applications: repair, refinishing, manufacture

Drag the slider to compare before and after.

Bentley wheel after CNC diamond cuttingAfter
Bentley wheel with kerb damage before CNC machiningBefore
Bentley, damage to the rim lip: only 0.5 mm was cut in the damage zone, 0.1 mm on the rest of the face. Gloss acrylic coating.
Porsche wheel after CNC diamond cutting with matt acrylic coatingAfter
Porsche wheel before refinishingBefore
Porsche 911 GTS in the look of the 911 Turbo S: face CNC diamond-cut on the CNC-MW28H and clear coated with matt acrylic powder.
Repaired wheel damage after CNC diamond cuttingAfter
Damaged alloy wheel before repairBefore
Damaged alloy wheel before repair and repaired wheel damage after CNC diamond cutting with matt acrylic coating.
Truck wheel after CNC diamond cuttingAfter
Truck wheel before CNC diamond cuttingBefore
Truck wheel (polished or high-gloss compacted aluminium wheels): CNC machining and resealing. Lighter wheels mean more payload.
Audi wheel after CNC diamond cuttingAfter
Audi wheel before CNC diamond cuttingBefore
Audi: CNC diamond cutting after kerb damage.
Mercedes wheel after CNC diamond cuttingAfter
Mercedes wheel before CNC diamond cuttingBefore
Mercedes-Benz: CNC diamond cutting after kerb damage.

Series production of diamond-cut wheels

Individual wheel designs and series production: the CNC-MW28H is also used in wheel production, here on the Deluxe Wheels UROS.

CNC diamond cutting on video

CNC lathes for diamond cutting wheels

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Contour capture, contour optimisation and non-uniform re-cutting on a damaged wheel.

Buying and running one

Who benefits from their own CNC lathe

  • Dealerships, garages, body shops, smart repair providers

    The share of diamond-cut wheels has been growing for years. Those who do the repair in-house instead of outsourcing gain revenue per vehicle, shorten turnaround times, retain customers and keep control of quality.

  • Wheel manufacturers and refinishers

    The same machines produce diamond-cut series wheels and individual designs. Dual-paint wheels are coated in two colours, after which only the top colour layer is cut away.

Training: cutting wheels yourself after 1 to 3 days

Individual training, no group classes, ideal for up to 2 participants. Aimed at beginners and machine operators in the field of CNC, specifically alloy wheels.

TrainingModelDurationContent
CNC basic training T1CNC-MW28X1 day, approx. 9 hrs incl. breakIntroduction to CNC technology (function, axes, control, safety, particularities of damaged wheels); operation (start, stop, homing, tool change, setting up workpieces); capturing wheel contours (measuring methods, reference point, digitising, transfer to the control); contour optimisation with OPT2CUT (import, smoothing, digitising irregular contours, simulation, error checking); practice on sample wheels
CNC basic training T2CNC-MW28H, CNC-MW28TX2 days of approx. 9 hrs eachContent of T1 plus: contour optimisation of damaged wheels; parameter adjustment (cutting speed, infeed, extension of the rim lip); practice in "non-uniform re-cutting"; error analysis and measures to improve quality; machining wheels with damaged areas; ensuring run-out and surface quality
Basic courseall1 day€1,200 (configurator)
Intensive course G1–G3all3 days€2,775 (configurator). G1: basic operation, contour capture, contour optimisation, practice. G2: machining damaged wheels, non-uniform re-cutting of heavily damaged wheels, practice. G3: drop-centre wheels in detail, consolidation training with repetition of all content

We also teach incoming inspection and checking of wheels, cleaning before and after CNC machining, coating of diamond-cut surfaces, and costing and marketing.

Support and maintenance

We avoid long downtimes through fast service: technical support, maintenance service and application support from CNC professionals who work on the machines themselves every day. Added to this are the 24-hour spare parts service, replacement machines and service technicians throughout Europe.

CNC hotline and support for 12 months cost €365. Support is available at +49 (0) 6074 21 50 70 or info@mainhattan-wheels.de. Details of warranty, commissioning and hire purchase are on the training and support page.

Support team at Mainhattan-Wheels
Dipl.-Kfm. Thomas Beez

Our aim is to spare our customers years of work and setbacks. We do this by transferring our know-how from 20 years of wheel refurbishment during the CNC training and the support that follows.

Dipl.-Kfm. Thomas Beez · Managing director, Mainhattan-Wheels GmbH

Questions before buying a CNC lathe

Can damaged diamond-cut wheels be repaired without a CNC lathe?

No. Damaged diamond-cut surfaces cannot be restored by painting, polishing or rotary sanding, only by re-cutting on a CNC lathe, exactly as in manufacture.

Can all wheel types be machined?

Yes, every wheel type that was originally diamond-cut, including strongly concave wheels and extreme drop centres.

Can all cutting patterns be produced?

Yes. The cutting pattern is determined mainly by the feed rate and is easy to adjust.

What about dual-paint wheels?

Those are possible too: the wheel is coated in two colours, after which only the top colour layer is cut away. We do this ourselves on new and used wheels.

Is diamond cutting just a trend?

No. The premium manufacturers started with it years ago and other brands are following; it is an established standard. Even if trends change, the existing wheels will need repairing for years to come. We have been observing the market for more than 20 years through prototype customers and our own wheel repair business.

Is it not dangerous to re-cut the whole wheel?

Yes, if the entire face is cut down until the damage disappears. With non-uniform re-cutting, material is removed only where the damage is, usually at the rim lip; on the rest of the face only the clear coat is removed. The optimisation software ensures that the transition remains invisible.

Which model suits a small workshop?

The vertical CNC-MW28X with a 1.35 m² footprint. At around 2 wheels per day it pays for itself after roughly 6 months. Businesses without a three-phase supply choose the CNC-MW30V-Mobil (230 V, 0.95 m²).

How long does the training take?

Depending on the model, 1 to 2 days of basic training (T1 for the MW28X, T2 for the MW28H and MW28TX); the intensive course lasts 3 days. After that you can cut all wheel types yourself.

What is included in the scope of delivery?

All models are delivered complete: cutting tools, contour capture system and OPT2CUT software with annual licence. Commissioning, training and technical support are part of the package.

Why a machine from Mainhattan-Wheels?

We have been refurbishing wheels every day for more than 20 years. Our machines are created first for our own needs and only go into series production once they meet our quality and cost-effectiveness requirements. By wheel professionals for wheel professionals.

Demonstration in ongoing operation

In our demonstration centre in Dietzenbach you can see the CNC lathes working on real customer wheels. Request a no-obligation quote or make an appointment: +49 (0) 6074 21 50 70.

Book a demonstrationTo the online shop

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