About Us
Spindle service and repair department Spindle testing station Spindle testing station Laser welding device for repair of damaged spindle parts High-precision machine grinding of spindle shafts Spindle balancing equipment Spindle vibration analysis – dynamic spindle balancing Spindle vibration analysis – dynamic spindle balancing Dimensional inspection with a high-precision digital altimeter

Spindle service and repairs

HSTec offers service, repairs, redesign and optimization of spindles and motorized spindles of all global manufacturers. Based on years of experience in development and production of innovative high-speed motorized spindles we became leading experts for repairs and optimization of motorized spindles, belt-driven and direct-driven spindles for various applications: grinding, milling, turning, boring.


Repairs of main spindles, motorized spindles and electrical motors

Our department for spindle service and repairs is equipped with a modern welding device for repairing damaged parts, numerous CNC machine tools, lathes and highly precise grinding machines.

Various test and diagnostic equipment is used, namely spindle vibration analysis equipment - Hofmann and SKF, high-voltage insulation testing of stator windings - Baker, testing equipment of accuracy and precision of various sensor types such as high resolution motor speed and position sensor and incremental and absolute encoders (Heidenhain, Lenord Bauer, VS-Senzorik, Siemens).

We offer complete refurbishment of damaged spindle parts such as HSK and SK cones, bearings and more.


Laser welding for repairing damaged parts

Laser welding for repairing damaged parts

High-precision machine grinding of spindle shafts

High-precision machine grinding of spindle shafts


Spindle balancing equipment


Spindle vibration analysis – dynamic spindle balancing

Spindle vibration analysis – dynamic spindle balancing

Dimensional inspection with a high-precision digital altimeter

Dimensional inspection with a high-precision digital altimeter

Each spindle, received for repair or service undergoes thorough testing and diagnostics of all functionalities, in order to make the spindle condition report. Further steps are taken to repair and possibly optimize the spindle, with the aim of extending its service life.

Only original spare parts are used, or by appointment, replacement parts that meet the specifications of the original parts.

All the proposed solutions are made according to the customer needs and the machine in which the spindle is installed.

HSTec repairs spindles from all global manufacturers:

ALFRED JÄGER, CHIRON, DAEWOO, DECKEL MAHO, DOOSAN, FAG, FANUC, FISCHER, FIEGE, FRANZ KESSLER, GAMFIOR, GIORDANO COLOMBO, GMN, HAAS, HERMLE, HSD, HURCO, IBAG, IMT, JUNG, KAVO, MAKINO, MAZAK, MIKRON, MITSUBISHI, MORI SEIKI, OMLAT, PERSKE, SKF, STEP-TEC, ROYAL, RECKERTH, RENAUD, SIEMENS, TDM, TOYODA, VOUMARD, WEISS...

Our longstanding experience, expertise of our employees and high precision equipment has shaped us into the regional leading company for spindle service and repairs.

EU ESIF

HSTec d.d. je krajnji primatelj financijskog instrumenta sufinanciranog iz Europskog fonda za regionalni razvoj u sklopu Operativnog programa "Konkurentnost i kohezija".