0.000 mm

Calibrating · Polski Serwis Wrzecion

01 Overhaul of spindles and motor spindles

Spindle service

We overhaul synchronous and asynchronous motor spindles. We have suitable diagnostic stations that allow us to balance and test the spindle across its full speed range. The customer receives a full report of the measurements taken.

Speedmaster spindle with an HSK63 taper resting on a blue stand in the workshop
Fig. 01 From our projects Speedmaster HSK63 spindle, 20,000 rpm — see our projects
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Motor spindles and conventional spindles

Milling · turning · grinding spindles

01 — Scope of repairs

We repair spindles

We specialise in the overhaul of motor spindles and conventional spindles.

+ Reconditioning

We also recondition damaged SK and HSK tapers and clamping systems, replace encoder discs, make replacement parts for damaged components, etc.

  1. Weight

    Small and large – from 1 kg to 1 t

  2. Drive

    With mechanical and electric drives

  3. Motor

    With asynchronous and synchronous motors

  4. Cooling

    Air-, water- and oil-⁠cooled

  5. Bearings

    With ball and roller bearings

  6. Bearing material

    With steel and hybrid / ceramic bearings

  7. Tool change

    With manual and automatic tool change

  8. Lubrication

    Grease- and oil-⁠lubricated

  9. Application

    For metal, composite, wood and glass processing machines

02 — Services

Comprehensive services

At the customer’s request, we provide comprehensive services — from removing the damaged spindle from the machine to starting it up again after the repair.

  1. At the customer’s site

    Removal of the damaged spindle from the machine

  2. In the PSW workshop

    Repair of the spindle

  3. At the customer’s site

    Installation of the repaired spindle

  4. At the customer’s site

    Start-up of the spindle on the machine

03 — Diagnostics

Specialised measuring instruments

A very important aspect of any spindle overhaul is a correct diagnosis of the damage. Our company has the equipment needed to carry out such a diagnosis.

  • OTT-JAKOB tool clamping force meter

  • FFT spindle vibration analyser

  • Dynamic balancing machine

  • Heidenhain measuring transducer amplitude meter

  • Bearing preload gauge

  • Surge winding tester (identifies e.g. inter-turn short circuits)

  • Winding and insulation resistance meter

  • Set of reference gauges for HSK tapers

Mitutoyo Roundtest roundness measuring instrument with a mounted shaft and a monitor showing the measurement results
Fig. 02 Roundness measurement — Mitutoyo Roundtest
Laptop running Heidenhain software that records the signal waveforms of the measuring transducer
Fig. 03 Recording Heidenhain transducer signals
Tool clamping force meter mounted in the spindle, with a reading in kilonewtons on the red display
Fig. 04 Tool clamping force measurement
Spindle on the test stand with vibration sensors on the housing and a sensor at the test arbor; a laptop with the measurement chart beside it
Fig. 05 Spindle on the test stand

04 — Machines

Machine park

Our company has the following machines needed to carry out a proper spindle overhaul.

Machine park: type of machine and manufacturer or model
No.MachineManufacturer / model
Grinding
01Internal grinding machineJUNG
02Internal grinding machineVoumard
03CNC cylindrical and internal grinding machineStuder S30 lean pro
04Cylindrical and internal grinding machineStuder S20
05Cylindrical and internal grinding machineKellenberger 1500U
06Cylindrical and internal grinding machineTOS BHU32A
07Tool grinding machineJungner
08Ring grinding machineReinecker
09Rotary-table surface grinding machineDelta LC400
10Jig grinding machineDeckel LKS
CNC machining
11CNC milling machineDMG DMU70
12CNC milling machineDMC 75 linear
13CNC latheDMG NEF320K
14CNC latheDMG NEF400
15CNC latheDMG NEF520
EDM
16EDM machineCharmilles
Measurement
17Measuring machineRoundtest RA-2200AH

05 — Manufacturers

Machine and spindle brands

We repair spindles from the machine and spindle manufacturers listed below — and many others.

Machine manufacturers

  • SW
  • DECKEL MAHO
  • DMG MORI
  • GILDEMEISTER
  • GROB
  • MITSUBISHI
  • MAKINO
  • MATSUURA
  • KITAMURA
  • STAMA
  • FANUC
  • HERMLE
  • VOUMARD
  • JUNG
  • MIKRON
  • VOLLMER
  • HURON
  • FREST
  • CHIRON
  • OKUMA
  • QUASER
  • HURCO
  • ELUMATEC
  • WEEKE
  • HOMAG
  • IMA
  • FADAL
  • UVA
  • BRIDGEPORT
  • STARRAG
  • BROTHER
  • HARDINGE
  • HYUNDAI
  • AXA
  • PORTATEC
  • SERON
  • KIMLA
  • BYSTRONIC
  • HITACHI SEIKI
  • MAG
  • MAZAK
  • HAAS
  • EMAG
  • FFG
  • MECCANODORA
  • NOVA
  • ALZMETALL
  • DOOSAN
  • IMA-TECNO
  • WEISSER
  • ABB
  • SCHAUDT MIKROSA
  • STUDER
  • TRAUB

Spindle manufacturers

  • FRANZ KESSLER
  • STAMA
  • VOUMARD
  • FISCHER
  • WEISSER
  • OMLAT
  • GMN
  • GF
  • FORTUNA
  • HEINZ FIEGE
  • RENAUD
  • PRECISE
  • RECKERTH
  • PERSKE
  • IBAG
  • HELLER
  • HAUSER
  • GAMFIOR
  • FAG
  • BRYANT
  • DANOBAT
  • COLOMBO
  • BLOHM
  • NSK
  • SKF
  • SMZ
  • WEISS
  • JUNKER
  • UVA
  • TDM
  • HSD
  • STEP-TEC
  • UKF
  • DMG MORI
  • IMT
  • JUNG
  • ROYAL
  • QUASER
  • SCHAUDT
  • STUDER
  • MITSUBISHI
  • TRAUB

06 — Next step

→ Contact

Tell us about your spindle

Manufacturer, model and fault symptoms — a good start to a conversation about the repair.

→ Projects

See repaired spindles

Browse projects