GU-2020, 3250, 32120

Paragon USA | Universal Cylindrical Grinding Machines, CNC
  • GU-3250CNC-Universal
  • Universal-Wheel-Head
  • Work-Head
  • UNIV-Internal-Grind
  • UNIV-Plunge-Grind
  • UNIV-Sholder-Grind
  • UNIV-Taper-Grind
  • UNIV-Traverce-Grind
Every Paragon cylindrical grinder is designed and manufactured based on the following management concepts: Application of the newest technologies and innovation, endless improvement and progress and customer satisfaction. Assembly is carried out in strict compliance with ISO 9001 directives. All machine bases are manufactured from high quality Meehanite cast iron with a low center of gravity.

Universal wheel-head: Rigid and precise with a powerful 5-hp motor achieving peripheral speed 45m/s. Equipped with class C1 ballscrew (40mm dia.) and Heidenhain sub-μm linear scale with full close loop feedback.

Overall, the machine achieves +/- 0.5 μm repeatability accuracy

Grinding Spindle: Made of high quality alloy steel (SNCM-439).

Hydrostatic Bearings: No metal to metal friction, no overheat and no deformation and no oil leakage. The hydraulic and lubrication system has independent temperature control, providing minimum thermal displacement.

Hydrostatic Guideways: Hand scraped and features an oil lubrication system which reduces the metal friction and guarantees constant high accuracy.

Workhead: A rigid design, driven by servo motor, features reliable and precise operation. NN roller bearings and angular contact bearings in the workhead spindle reduce edge stress and friction, improving concentricity and surface finish of work piece. The table is enabled to swivel between 30° (clockwise) ~ 90° (counterclockwise).

Tailstock: Flexible and easy operation, equipped with hydraulic actuated barrel retraction by foot peddle and manual handle for easy workpiece loading and unloading. (M.T.4 Taper Center) Center pressure can be adjusted for high precision for small and thin workpieces.

CNC Controller: Rexroth MTX Micro color screen with the latest technology in digital control system. Powerful processor can shaorten CNC and PLC processing time. Compact multi-server drives, which smaller installing space and high processing accuracy.

Paragon’s self developed conversational interface software can get users started quickly.

ModelGU-2020 CNCGU-3250 CNCGU-32120 CNC
Swing over table (mm)200320320
Distance between centers (mm)2005001200
Max. Grinding diameter (mm)160280280
Max. Grinding wheel (mm)355 x 50 x 127405 x 56 x 127405 x 56 x 127
Max. Load held between centers30-kg150-kg150-kg
Max. Grinding wheel speed33 m/s45 m/s45 m/s
X-axis min. resolution increment (mm)0.00010.00010.0001
X-axis rapid traverse speed5 m/min.6 m/min.6 m/min.
Z-axis min. resolution increment (mm)0.00010.00010.0001
Z-axis max. traverse speed6 m/min.8 m/min.8 m/min.
Z-axis can be swiveled manually in deg.-0.5 ~ +60 ~ +8-0.5 ~ +5
Workhead spindle speed (rpm)5 - 7505 - 7505 - 750
Workhead swiveling angle-90° - 30°90° - 30°
Tailstock hyd. Sleeve retraction (mm)253535
Tailstock centerM.T.3M.T.4M.T.4
Wheel spindle motor3-hp5-hp5-hp
Wheel head feed (servo motor)1.2-kw1.6-kw1.6-kw
Table feed (servo motor)1.2-kw3-kw3-kw
Workhead spindle (servo motor)1-kw1.2-kw1.2-kw
Internal grinding motor-1-hp1-hp
Machine dimensions (cm)180x230x216300x200x226555x360x226
Machine weight2500-kg3500-kg6740-kg
Specifications subject to change. Please contact us for more information.
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