Universal Grinding Machine

UB 25 – 80 kg

Universal Grinding Machine

UB 25 – 80 kg

Distance between centers 630; 1,000 mm
Max. swing diameter 250 mm
Minimum X axis increment 0.001 mm
Minimum Z axis increment 0.005 (0.001) mm
Grinding wheel peripheral velocity 25 – 45 m/s
Max. weight between centers 80 kg
Max. workpiece weight incl. fixture – overhanging 25 kg
Grinding wheel diameter 400 mm
Spindle power 4 kW
CNC control system Siemens Sinumerik ONE or Kavalír NXCS

Download the product booklet


Universal grinding machine UB 25 – 80 kg are based on the basis of time-tested design, complemented by modern features. These grinding machine are used for grinding of workpieces max. diameter of 250 mm and a max. length of 1000 mm, clampend between centers or overhung in a chuck with the possibility to use of internal grinding device  During grinding, the machines can be controlled manually or work in a fully automatic grinding cycle (grinding multiple diameters (multicycle), plunge grinding or lengthwise grinding, grinding of convex or concave diameters with automatic grinding wheel dressing). Workpieces are clamped between centers, overhung in chuck or on a magnetic permanent plate. The machines are intended for precise and high-performance grinding of individual pieces but also for large series of workpieces.

  • Compact design for small to medium dimensions of grinded workpieces.
  • Manual or automatic grinding.
  • CNC control system – Siemens Sinumerik ONE or Kavalír NXCS
  • Inner and outer grinding.
  • Partial or full cover of machine with grinding mist exhaustion.
  • SBS Dynamic balancing system of grinding wheel.
  • Measuring, cooling and electric systems by world leading manufacturers.
  • Flexible arrangement of additional components.

Photo gallery

Standard accessories

  • Coolant splash guards – partially covering with a manual-controlled door.
  • Tailstock mounted wheel dresser (without diamond).
  • Fixed tips (2pcs).
  • Sedimentation cooling equipment.
  • Electric foot pedal for pneumatic tailstock control.
  • Puller of grinding wheel flange.
  • Suspension of grinding wheel flange.
  • Set of pads for bed leveling.
  • Balancing arbor with a nut.
  • Tools for operating of machine.
  • LED lighting IP65.
  • Technical documentation.

Special accessories

  • Size gauge for longitudinal workpiece positioning.
  • In-process measurement of workpiece diameter.
  • SBS Automatic electro-dynamic balance system of the grinding wheel.
  • Extra grinding wheel flange.
  • Internal grinding att. complete incl. spindle and motor-drive.
  • Closed steady rest actuated by hand.
  • Tilting wheel dresser table mounted w/o diamond actuated by hand.
  • Three-jaw chuck, incl. adapter plate.
  • Permanent magnetic plate, incl. adapter plate.
  • Auxiliary rests with different diameter range.
  • Side and angular dresser table mounted w/o diamond actuated by hand.
  • Radius dresser table mounted w/o diamond actuated by hand.
  • Att. for fine table swiveling with dial indicator.
  • Water tank fitted with a magnetic or belt filter or a combination thereof.
  • Wheel balancing stand.
  • Unique system SmarTOS

Do not hesitate to contact us

    TOS Hostivař s.r.o.

    Rádiová 1431/2a
    102 00 Praha 10
    Czech republic