Worm Grinding Machine

SAMPUTENSILI RV3000

Condition: used, Year of construction: 2007, max. dia. of teeth cutting 2000 mm workpiece dia. 2700 mm Diameter of the table 1500 mm max. module 22 Control 840D turning speeds 3,5 U/min table load capacity 20000 KG Distance of shafts 70...1220 mm Stroke length 30...330 mm no. of strokes 10...200 Hub/min total power requirement 138 kW weight of the machine ca. 38 t dimensions of the machine ca. 11x5 m machine: Full CNC machine with electronic rolling coupling for C- and D-axes and digital INDRAMAT drive technology. Stiff machine bed in welded construction. Radial axis (X-axis) with hardened guideways, sliding guide with wraparound, Kdsdpfx Acev E R Eiouow longitudinal guide with roller recirculating shoes. Ground preloaded ball screw with play-free preloaded nut. Digital AC drive technology with play-free gearbox. Linear measurement system for radial positioning. Freestanding machine table with electrohydraulically play-free preloaded double worm gear, part wheel diameter 1365 mm, hydrostatic axial and radial bearings, automatic compensation of the workpiece weight. Table hole with a diameter of 500 mm through and open at the bottom. Water-cooled digital AC servo motors. The machine is to be installed on a foundation. Machine stand: as a highly rigid cast construction for axial travel of 1200 mm. Axial axis (Z-axis) with hardened guideways, slide-guided, longitudinal guide and wraparound with roller recirculating shoes. Ground ball screw with play-free preloaded nut. Digital AC drive technology. Encoder for axial positioning. Shapping head: SK 4.1 with hydraulic NC servo drive for impact spindle movement and cutting wheel lifting, stroke length 330 mm, impact spindle diameter 160 mm. Hydrostatically supported impact spindle, linear guide and lateral guide for the lifting mechanism. Maximum tool diameter 300 mm. Drive motor power 30 kW. Stroke rates from 10 - 200 DH/min, stroke speed from 5 - 45 m/min. Impact spindle speed for working and return stroke independently programmable. In the cutting area, the spindle speed remains constant. Maximum cutting wheel speed 10 rpm, digital AC drive technology. Cutting wheel lifting correction for internal and external gearing manually reversible. Lateral offset of the impact spindle axis up to 50 mm from the machine center to prevent return stroke collision of the cutting wheel, manually adjustable.

Condition: excellent (used), Year of construction: 1979, Kapp AST‑305B – Technical Specifications Machine type: automatic hob and gear cutter sharpening machine Year of manufacture: circa 1979 Machine function: resharpening of hobs, spiral or straight gash cutters; wet or dry grinding Maximum tool diameter capacity: 12 inches (300 mm) Maximum tool length between centers: 27 inches (700 mm) Maximum table traverse: 21.56 inches (550 mm) Maximum grinding wheel diameter: 12 inches (300 mm) Maximum center height: 6.1 inches (155 mm) Table speed (infinitely variable): – deep grinding: 30 to 1000 mm/min – surface grinding: 3 to 16 mm/min Flute lead angle range: 0° to 45° Flute lead range: selectable, up to 24‑inch to zero or 12‑inch to zero Grinding spindle speed: 2200 rpm (optional 1000–4000 rpm) Axial grinding spindle adjustment: 16.54 inches (420 mm) Kodpfxswwkt As Acuodw Vertical grinding head adjustment: 11.81 inches (300 mm) Spindle taper: Morse 4 or steep taper 40 Preselectable single in-feed: range 0 to 9999 (units) Machine dimensions: length 118 in × depth 82 in × height 93 in (≈3000 × 2080 × 2360 mm) Machine weight: approximately 7,500 lbs (3,000 kg) Control system: originally manual/analog, often upgraded with Allen‑Bradley PLC