KONUSSERVIS +386 40 884 514 Enquiry
SK · BT · CAT · BIG-PLUS (BP) · sizes 40 and 50

Spindle taper grinding on your machine

We recondition the spindle taper at your premises, in the working area of the machining centre, without removing the spindle. The reconditioning itself takes one working day on your machine.

< 18 µm
Acceptance criterion Runout (TIR) at the end of a 300 mm test bar, measured after grinding.
Send an enquiry Call +386 40 884 514 You will receive a non-binding indicative estimate by email immediately after submitting your enquiry.
7:24 taper 300 mm dial indicator runout < 18 µm
When is reconditioning needed

Signs of a worn taper

  • Tool runout varies from one tool change to the next – clamping is not repeatable.
  • Poorer surface finish and chatter marks in finishing operations.
  • Dark rings, rust or fretting marks are visible on the taper.
  • Tools wear faster than on other machines.
  • Reaming of holes is no longer reliable.
  • Tight tolerances can no longer be held.
Service

What we do and what we don't

We do

  • SK, sizes 40 and 50
  • BT, sizes 40 and 50
  • CAT, sizes 40 and 50
  • BIG-PLUS (BP), sizes 40 and 50
  • Vertical and horizontal spindles
  • At the customer's premises, in the working area of the machining centre
  • Runout measurement after grinding

We don't do

  • Spindle bearing repairs or repairs to other machine parts
  • Reconditioning of tool holders or clamping devices

HSK and other tapers by arrangement. These cannot be selected in the online form – call us on +386 40 884 514 or email us at info@konus-servis.si.

How it works

From enquiry to reconditioned taper

  1. Enquiry

    Fill in the form with details of the machine and the taper and attach a photo. It takes about 5 minutes.

  2. Indicative estimate

    You will receive a non-binding indicative estimate by email immediately after submitting your enquiry.

  3. Formal quotation with a date

    If you are satisfied with the indicative estimate, click “Request an appointment” in the email. Within 24 hours you will receive a formal quotation with a proposed date.

  4. Taper reconditioning

    We recondition the taper at your premises, in the working area of the machine, and measure the runout after grinding.

We are usually on site within 7 working days of order confirmation, and the reconditioning itself takes one working day. For priority jobs we can be on site within 3 working days, and for urgent jobs on the next working day.

Lead timeArrival on siteSurcharge on grinding price
Standardwithin 7 working daysno surcharge
Prioritywithin 3 working days+20%
Urgentnext working day+40%
Last 10 jobs

Reconditioned tapers and measured runout

Runout at the end of a 300 mm test bar, measured after grinding. Click on a job to see photos of the taper before and after reconditioning.

6,5 µmaverage runout after reconditioning
11 µmlargest runout after reconditioning, acceptance criterion < 18 µm
Okuma MB-66VABT40 · runout after 5 µm at 300 mm · before: measurement not possible
Okuma MB-66VA – spindle taper, Before
Before
Okuma MB-66VA – spindle taper, Before
Before
Okuma MB-66VA – spindle taper, After
After
DMG Mori NH 5000SK40 · runout after 7 µm at 300 mm · before: 72 µm at 300 mm
DMG Mori NH 5000 – spindle taper, Before
Before
DMG Mori NH 5000 – spindle taper, Before
Before
DMG Mori NH 5000 – spindle taper, After
After
DMG Mori NH 5000 – spindle taper, After
After
Hartford MVP-16SK40 · runout after 5 µm at 300 mm · before: 300 µm at 300 mm
Hartford MVP-16 – spindle taper, Before
Before
Hartford MVP-16 – spindle taper, Before
Before
Hartford MVP-16 – spindle taper, After
After
Doosan DNM 750SK40 · runout after 4 µm at 300 mm · before: measurement not possible
Doosan DNM 750 – spindle taper, Before
Before
Doosan DNM 750 – spindle taper, Before
Before
Doosan DNM 750 – spindle taper, After
After
Doosan DNM 750 – spindle taper, After
After
DMG Mori NH 5000SK40 · runout after 7 µm at 300 mm · before: 96 µm at 300 mm
DMG Mori NH 5000 – spindle taper, Before
Before
DMG Mori NH 5000 – spindle taper, Before
Before
DMG Mori NH 5000 – spindle taper, After
After
DMG Mori NH 5000 – spindle taper, After
After
Mori Seiki NH 5000SK40 · runout after 6 µm at 300 mm · before: 40 µm at 300 mm
Mori Seiki NH 5000 – spindle taper, Before
Before
Mori Seiki NH 5000 – spindle taper, Before
Before
Mori Seiki NH 5000 – spindle taper, After
After
Mori Seiki NH 5000 – spindle taper, After
After
DMG Mori NH 5000SK40 · runout after 8 µm at 300 mm · before: 75 µm at 300 mm
DMG Mori NH 5000 – spindle taper, Before
Before
DMG Mori NH 5000 – spindle taper, Before
Before
DMG Mori NH 5000 – spindle taper, After
After
DMG Mori NH 5000 – spindle taper, After
After
Doosan DNM 5700SK40 · runout after 6 µm at 300 mm · before: taper too worn to measure
Doosan DNM 5700 – spindle taper, Before
Before
Doosan DNM 5700 – spindle taper, Before
Before
Doosan DNM 5700 – spindle taper, After
After
Doosan DNM 5700 – spindle taper, After
After
DMG Mori CMX 70USK40 · runout after 6 µm at 300 mm · before: taper destroyed, measurement not possible
DMG Mori CMX 70U – spindle taper, Before
Before
DMG Mori CMX 70U – spindle taper, Before
Before
DMG Mori CMX 70U – spindle taper, After
After
DMG Mori CMX 70U – spindle taper, After
After
HedeliusSK40 · runout after 11 µm at 300 mm · before: measurement not possible
Hedelius – spindle taper, Before
Before
Hedelius – spindle taper, Before
Before
Hedelius – spindle taper, After
After
Hedelius – spindle taper, After
After
About us

Service providers

FOTO Photo of Bor

Bor Vreček

DOPOLNI Kratka vloga, npr. »Strojni inženir, vzdrževanje CNC strojev«

DOPOLNI 2–3 stavki o tvojih izkušnjah. Predlog: omeni magistrsko delo o obnovi vpenjalnih površin na CNC obdelovalnih centrih in leta izkušenj z vzdrževanjem

FOTO Photo of Primož

Primož Jagodic

DOPOLNI Kratka vloga kolega

DOPOLNI 2–3 stavki o kolegovih izkušnjah

Questions

Frequently asked questions

How long is the machine out of service?

The reconditioning itself takes one working day. The machine is out of service on that day only.

What do we need on site?

Most importantThe spindle must be able to run at 50 rpm or more with no tool clamped and the machine door open.

  • An empty and cleaned working area of the machine
  • A 230 V power socket and a compressed-air connection close to the machine
  • A crane or hoist for loading the grinding unit onto the machine table
  • A forklift for unloading the equipment
How soon can you come?

We are usually on site within 7 working days of order confirmation, and the reconditioning itself takes one working day. For priority jobs we can be on site within 3 working days, and for urgent jobs on the next working day. You choose the lead time in the enquiry form.

Is the indicative estimate binding?

No. The indicative estimate does not commit you to anything.

Send us an enquiry

You will receive a non-binding indicative estimate by email immediately after submitting your enquiry.

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