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Worm-/ and rotor-grinding machine. Top condition! Many accessories!

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Worm- and Rotor Grinding Machine - top condition Equipment / Accessories: - very many accessories - filter system

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Normal distance between centres (centres at the back) 750 mm Max. distance between centres (centres in clamping head) 1,200 mm Grinding length 500 mm Workpiece Ø, min./max. 10 - 350 mm Workspindle bore 130 mm Workpiece speeds, infinitely variable 1 - 26 rpm Lead range, min./max. 1 - 500 mm Max. lead angle 45 ° Pressure angle 0 - 30 ° Module range 0.5 - 25 No. of threads 1 - 30 Grinding depth 65 mm Grinding wheel dimensions, Ø x width 500 x 60 mm Grinding wheel speeds, infinitely variable 75 - 3,000 rpm Spindle drive, approx. 12 kW Total electric load 25 kW - 380 V - 50 Hz Weight 8,500 kg Accessories / Special Features * Universal hydraulic dressing unit, mounted above the grinding wheel. Works without templates. With compensation device. Various grinding wheel speeds for roughing and finishing. * Automatic workpiece indexing device allows automatic circumference indexing using change gears. Number of threads can be preset from 1 to 30. * Lead correction device allows variation of lead by up to 0.025 mm for a thread length of 100 mm. Hydraulic tailstock. * Axial and/or radial infeed of grinding slide, depending on grinding process, e.g. Worm grinding, or grinding full material. * Automatic working process for mass production. Infeed amounts, roughing, finishing, and intermediate dressing cycles can be preset. After work is finished, the grinding head returns to starting position and the control switches to new start. * Fully covered working area with sliding doors. * Separate coolant unit with cyclonic filter and magnetic separator. * Driving plate on work spindle. * Speed display. * Change gears.

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workpiece diameter 320 mm︱threading length 300 mm︱thread pitch mm︱total power requirement 90 kW︱weight of the machine ca. 12000 kg︱dimensions of the machine ca. m︱

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Thread and worm grinder for steering worms

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Well-preserved machine with extensive accessories: Coolant device with 2 pumps for top and bottom cooling -Complete gear set with correction wheels -Part device for multi-start thread and axial table displacement -Automatic 3 diamond dressing device -Automatic roll-up device for multi-section grinding wheels -3 large steady rest -4 small steady rest -25 grinding wheel flanges Various grinding wheels

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Distance between centres 2,000 mm Height of centres, approx. 280 mm Max. length of workpiece 2,200 mm Grinding length 2,000 mm Workpiece Æ, min./max. 10 - 550 mm Grinding Æ on the total length 400 mm Workspindle bore enlarged to 105 mm Lead range, min./max. 1 / 150 mm Max. helix angle, right / left 30 / 40 ° Grinding wheel, Æ x width 500 x 50 mm Profile size: module 14 mm ballscrew thread/radius 12.5 mm Workpiece speeds, steplessly adjustable 0.1 - 25 rpm quick feed 60 rpm Grinding wheel speeds, approx. 1,700 - 2,540 rpm Spindle drive 8 kW Total electrical load, approx. 20 kW - 380 V - 50 Hz Weight, approx. 15,000 kg Accessories / Special Features * Correction device for leadscrew. * Basic dressing slide: Various different dressing appliances can be attached to this device, e.g. * Automatic dressing device mounted above the grinding wheel for single-rib wheels, consisting of 3 adjustable dressing heads. Ideal for worms with a profile of up to module 12. * Motor-driven profile roll crush-dressing device for multi-ribbed thread/ballscrew profiles. * Possibly a hydraulic circular arc dressing device. Dressing speed/ dressing time can be set in 20 steps. * Automatic workpiece indexing device for automatic longitudinal and peripheral indexing. No. of threads can be set: 1 - 12. * 3 adjustable steadyrests for supporting the workpieces. * Complete coolant unit for exact temperature adjustment of grinding oil and the leadscrew lubrication oil. * Various change gears. * Various other accessories. * Oil exhaust hood.