Gear Grinding Machine

max. wheel diameter 400 mm︱gear width 200 mm︱max. module 10 ︱min. module 1 ︱profile depth 25 mm︱x-axis 630 mm︱y-axis 400 mm︱z-axis 190 mm︱U-axis 80 mm︱a- axis 360 °︱b-axis +/- 30 °︱max.helical angle 30 °︱grinding wheel diameter 250 - 350 mm︱spindle speeds (infinitely variable) 1500 - 2800 U/min︱grinding slide feeds 6000 mm/min︱center distance betw. workpiece-tool min/max. ︱pitch max. 9000 mm︱pitch min. 10 mm︱electrics - voltage/frequency 380 / 50 V/Hz︱total power requirement 38 kW︱

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horizontal Profil Gear Grinding Machine for Spur and Helical External Gears. Machine can be used with Abrasive Electrocorundum Wheels or with CBN or Elbor Wheels. Equipped with: - CNC Control FANUC 0i-MF -- for 6 Controlled Axis (4 simultaneously) - Gear Measuring System - Chip and Sludge Removal System - Paper Band Filter and magnetic Seperator - Swivel Reducer - Dressing Device - Tailstock with pneumatic clamping - Accurcy according to GOST 1643-81: 5 / DIN 5-6 SIEMENS control can be offered as an option

max. wheel diameter 300 mm︱gear width 600 mm︱max. module 7 ︱min. module 1 ︱grinding length 600 mm︱grinding width 0 mm︱workpiece height 660 mm︱total power requirement 50 kW︱weight of the machine ca. 15.000 t︱dimensions of the machine ca. m︱

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max. wheel diameter 600 mm︱gear width . mm︱max. module 12 ︱min. module ︱control SIEMENS 840 D ︱normal modul range 2-12 mm︱adjustable dividing cone angle -90 to +90° ︱axis offset above and below center +/-100 mm︱max. grindable numer of teeth 360 ︱grindable spiral angle (in tooth center) without limit ︱diameter of the workpiece holder 203.2 mm︱grinding wheel diamer 406 mm︱max. height of grinding wheel with base plate 135 mm︱grinding spindle speed 4.500 U/min︱spindle taper HSK-E63 ︱grinding head (X-axis) : ︱travel 340 mm mm︱max. travel speed 20.000 mm/min︱Kind of drive Synchronservomotor wasser ︱spindle pitch 15 mm︱

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•Control Siemens 840 D with operating system Windows XP, drives Siemens Simodrive 611, Profibus interfaces. •Single grinding head with fully automatic grinding wheel threading device for exact determination of the tooth gap position at any workpiece position. No manual adjustment is necessary in series operation. •System-independent grinding of almost all spiral bevel and hypoid gears pre-toothed in single-part and continuous processes. •Extremely efficient and precise grinding of spur gear couplings, such as Curvic® couplings. •Fully CNC-controlled machine concept designed for shortest set-up and changeover times as well as highest gear accuracy and grinding performance. •Manual data input or read-in via data carrier from the KIMoS calculation program with the possibility of data storage for repeat cases on fixed memory disk or floppy disk. •Workpiece-specific pre-programmable fully automatic work sequences with automatic threading of the grinding wheel into the pre-machined workpiece profile. •High grinding performance due to 31 kW grinding wheel drive, intensive wet grinding and eccentric grinding spindle unit to avoid structural damage due to grinding burn. •Low proportional tool costs through optional use of commercially available ceramic, vitrified bonded SG or CBN grinding wheels. •Free profile modification possibilities through path-controlled dressing of the ceramic and vitrified bonded grinding wheels by means of a diamond roller. •Automatic tracking of the cooling oil nozzles during dressing. •Workpiece spindle with 8 inch mounting •Automatic emergency retraction in case of overload of the drives •Lockable maintenance room for hydraulics, pneumatics, lubrication, extinguishing system •Automatic central lubrication and integrated hydraulic and pneumatic system •Liquid cooled grinding spindle unit and direct drives •Hydraulic workpiece and grinding wheel clamping device •Pressure relief flap with release contact for an extinguishing system •1 set of fixators for precise alignment of the machine •automatic work area door •documentation in German language, double version •integrated control cabinet with automatic cooling unit, completely installed with network-compatible full CNC control for all working and setting axes and integrated PLC •high resolution absolute or incremental encoders for all linear and rotary axes •liquid cooled motors and spindles for grinding with eccentric and dressing •2 machine lights in the work area •Machine status light •Exhaust system for the working area •Program hours approx. 32.000h •The machine has an interface to an automatic loading unit (Promot RZ) Scope of delivery of the machine as described, but without: •Coolant nozzle package •3D probe head •Hoffmann coolant system

max. wheel diameter 280 mm︱gear width - mm︱max. module 7 ︱min. module 1 ︱Control LIEBHERR CNC ︱total power requirement - kW︱weight of the machine ca. 10,0 t︱dimensions of the machine ca. - m︱

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max. wheel diameter 280 mm︱gear width 330 mm︱max. module 5 ︱min. module 1 ︱Control LH 90 LIEBHERR︱min. number of teeth 7 ︱toolpiece turning speed range 4.000 - 10.000 U/min︱workpiece diameter 145 - 175 mm︱tool length - max. 210 mm︱V-axis 200 mm︱Shift travel +/- 100 mm︱grinding head swing angle +/- 35 °︱total power requirement 25 kW︱weight of the machine ca. 12 t︱dimensions of the machine ca. 5,20 x 3,00 x 3,90 m︱

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only CBN

max. wheel diameter 360 mm︱gear width 175 mm︱max. module 7 ︱min. module 0,5 ︱Control Reishauer ︱total power requirement 32 kW︱weight of the machine ca. 5 t︱dimensions of the machine ca. 6,6x10,1x3,5 m︱

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max. wheel diameter 280 mm︱gear width 330 mm︱max. module 5 ︱min. module 1 ︱Control LIEBHERR CNC ︱total power requirement 28 kW︱weight of the machine ca. 12 t︱dimensions of the machine ca. m︱

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max. wheel diameter 400 mm︱gear width 210 mm︱max. module 10 ︱min. module 0,5 ︱Control BWO Typ 900 ︱total power requirement 30 kW︱weight of the machine ca. 6500 kg︱dimensions of the machine ca. m︱

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H Ö F L E R (Germany) CNC Controlled Gear Profile Grinding Machine Model PROMAT 400 Year 1999 / but delivered in 2000, S/N 575 _______________________________________________________________________ Grindable Gear Ø, min./max. 10 - 400 mm Module Range 0,5 - 10 Max. Grindable Profile depth 45 mm Gear width 210 mm Stroke length 230 mm Approx. workpiece length between centers 150 – 500 mm Swing over table approx. 235 – 495 mm Max. No. of teeth 5 – 500 Table size dia x bore 180 x 40 mm Max. Table Load / Workpiece weight 100 kg Grinding Wheel Dimensions Ø x width 400 x 45 mm Grinding wheel speed steplessly adjustable 4.000/60 rpm/m-sec. Grinding wheel drive 15 kW Size of diamond dressing wheel 180 x 40 mm Total Drive 30 kW / 400 V / 50 Hz Total weight of Machine 6,5 tons Special Equipment / Accessories: • Machining Process: Profile Grinding of Spur Gears by a profiled Grinding Wheel, one or One or two flank grinding process, the workpiece is moving up and down (Y-axis) and is Indexed from tooth to tooth by th B-Axis. The grinding head has fixed angle for straight toothed gears. • BWO CNC Control Model 900 (German Manufacturer) for 4+2 Axis with dialogue Programming of grinding programms based on the input data for an optimal grinding process in combination with profile and lead modifications. • CNC-Controlled Grinding Wheel Dressing Device with motorized Diamantroll mounted behind the Grinding wheel on a separate slide (Z-Axis) in conjunction with the axis of the grinding slide ( X-Axis) the software provides all modifications to involute basis profiles and dressing cycles. Dressing time for redressing 15 seconds, new profile generating takes 5 minutes dressing time. • DITTEL Balancing Unit , Model M 5000, with feeler and control unit • Hydraulically adjustable tooth gap threading device, ideal for pre-machined gears • Workpiece Counter Steady with hydraulic clamping device, pneumatic tailstock • Complete Enclosure of working area with sliding door, large grinding coolant device approx 2.000 Litres with large filtering system made by RESY Model KBF 802/710 and coolant temperature control make FURRER, Electrostatic oil mist Filter, and Many more accessories like flanges, clamping devices, spindle oil cooler, etc. Condition : Very good - Machine can be inspected under power, commissioned by Höfler Technician Delivery : Ex stock, as inspected. Payment : Net, after conclusion of contract, before loading

max. wheel diameter 400 mm︱gear width 200 mm︱max. module 15 ︱min. module 0,5 ︱root circle dia. min. 10 mm︱max.helical angle 45 °︱grinding wheel size 400 - 174 mm︱power capacity - grinding motor 15 kW︱grinding wheel peripheral speeds: 60 m/s︱dressing speeds 0 - 5400 U/min︱crush dressing device dia. 160 mm︱grinding spindle speed 0 - 4000 U/min︱dist. between centers 600 mm︱center height over work table 330 - 750 mm︱workpiece length - max. 750 mm︱table diameter 180 mm︱table load capacity 100 kg︱stroke length max. 260 mm︱Profile height max. 35 / 45 mm︱flange diameter 210 / 170 mm︱

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7 axis cnc profilgrinder ( A/B/O/Q/W/Y/X ) - CNC control Hoefler BWO 788 - Paperbandfilter unit - coolant - dressing Unit - balancing unit - Counter Stay

max. wheel diameter 3000 mm︱gear width 1200 mm︱max. module 34 ︱min. module 2 ︱root circle diameter 150 mm︱tip circle diameter 3000 mm︱no. of teeth 5 - 1000 ︱max. helix angle +/- 35 °︱pressure angle 14 / 31 °︱workpiece weight 20.000 kg︱stroke length max. 1250 mm︱double strokes/min. 80 - 350 Stück︱rotary table diameter 2000 mm︱boring diameter 600/710 mm︱grinding wheel size 270/350 x 127 x 40-63 mm︱electrics - voltage/frequency 400 / 50 V/Hz︱Control Schleicher Promodul-U ︱total power requirement 45 kW︱weight of the machine ca. 85 t︱

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Gear grinding machine equipped with: - CNC control Schleicher Promodul U with direct input of all gear parameters with appropriate software or subprograms for the automatic cycle with all delivery options. - internal and external grinding head (exchangeable) - Zeiss / Höfler measuring device on the machine (Höfler TPS software for spur and helical gears) - Width balancing device mounted on the grinding head, moved over the lever system and template, the height crowning is generated by the CNC 2-axis dressing device. - Grinding slide inclinable up to 35 °, this makes it possible to grind straight and helical gears cone-shaped as well as to grind ZR-rims u.ZR-scraper wheels. - Profile correction possible by appropriate dressing using the built-up CNC 2-axis dresser with driven diamond disc. - All-round splash guard with sliding doors, oil cooler, exhauster, separate control cabinet and sep. Hydraulics, stairs and platforms, Machine has a defect in the control - therefore, an exchange / modernization of the controller is appropriate

max. wheel diameter 400 mm︱gear width 200 mm︱max. module 10 ︱min. module 2 ︱control CNC Dialog ︱total power requirement 12 kW︱weight of the machine ca. 7 t︱dimensions of the machine ca. 4,2x3x2,2 m︱

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We have got 2 similar machines on stock. 1 machine comes with a CNC-dressing device flanges and discs

max. wheel diameter 400 mm︱gear width 200 mm︱max. module 10 ︱min. module 2 ︱control CNC Dialog ︱total power requirement 12 kW︱weight of the machine ca. 7 t︱dimensions of the machine ca. 4,2x3x2,2 m︱

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We have got 2 similar machines on stock. 1 machine comes with a CNC-dressing device flanges and discs

max. wheel diameter 1000 mm︱gear width 630 mm︱max. module 16 ︱min. module 1 ︱wheel diameter with counterstay 800 mm︱max. number of teeth 999 ︱clamping length 1060 mm︱workpiece weight 1500 kg︱max.helical angle 45 °︱grinding spindle drive ca. 20 kW︱Control Opal / Siemens ︱total power requirement 70 kW︱weight of the machine ca. 17,5 t︱

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- CNC control Opal / Indramat with Siemens PLC - DITTEL balancing unit - paperbandfilter - oil mist exhauster - complete covering

max. wheel diameter 1250 mm︱gear width 720 mm︱max. module 25 ︱min. module 2 ︱root circle dia. min. 80 mm︱max. ram stroke 750 mm︱max.helical angle 35 °︱pressure angle 31° 30' °︱no. of teeth 12 - 372 ︱table diameter 1000 mm︱grinding wheel diameter 300 / 400 mm︱table load capacity 6000 kp︱double strokes/min. 20 - 200 Stück︱grinding wheel speed 35 / 45 m/sec︱roll feed 90 - 900 mm/min︱Control Hoefler BWO ︱total power requirement 75 kVA︱weight of the machine ca. 27 t︱dimensions of the machine ca. 7,0 x 7,0 x 3,5 m︱

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CNC control Hoefler BWO outer steady, paperbandfilter, oil coolant, autom. dressing device, complete covering,change gears, grindingwheels

max. wheel diameter 330 mm︱gear width 180 mm︱max. module 6 ︱min. module 0,5 ︱root circle diameter 10 mm︱slide stroke 180 mm︱clamping length 420 (750) mm︱workpiece weight 60 kg︱number of teeth 10 - 600 ︱pressure angle 10 - 45 °︱max. helix angle +/- 45 °︱dia. of grinding worm 270 - 350 mm︱width of grinding worm 84 - 104 mm︱feed per revolution 0,4-3,40 mm︱adjustment per stroke 0,01 - 1,0 mm︱total adjustment 9,99 mm︱tangential adjustment 90 mm︱turning speed of grinding worm - grinding 110 - 1900 Upm︱turning speed of grinding worm - profiling 52 - 90 Upm︱electrics - voltage/frequency 380/50 V/Hz︱

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2021 partially overhauled and tested Grinds accuracy DIN 2/3 - TFT color display - raised counterholder (ideal for pinion shafts) - Diamond wheel dresser SPA - Extraction - AF filter

max. wheel diameter 330 mm︱gear width 180 mm︱max. module 7 ︱min. module 0,5 ︱total power requirement 12 kW︱weight of the machine ca. 7500 kg︱dimensions of the machine ca. m︱

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max. wheel diameter 1500 mm︱gear width 720 mm︱max. module 30 ︱min. module 2 ︱grinding stroke stepless adjustable 750 mm︱root circle dia. min. 80 mm︱number of teeth frei wählbar ︱max.helical angle 0 - 35 °︱grinding slide stroke 20 - 200 U/mm︱grinding wheel peripheral speeds: 35 / 45 m/s︱grinding wheel diameter 350 / 400 mm︱grinding motor 11 kW︱pressure angle max. 12,5 - 30 °︱table diameter 1000 mm︱table load capacity 6000 kp︱table bore diameter 200 mm︱depth of hole 250 mm︱capacity 38 kW︱workpiece slide - speeds 3000 mm/min︱workpiece speeds -stepless 3 U/min︱

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10 axis CNC Machine - CNC Control BWO CNC 785 - Automatic process control for single flank, double flank and contract line grinding methods - CNC dressing device - outer steady - RAL Autodyn wheel balancing device - complete covering quality class DIN 4 - 6

max. wheel diameter 330 mm︱gear width 180 mm︱max. module 6 ︱min. module 0,5 ︱root circle diameter 10 mm︱slide stroke 180 mm︱clamping length 420 (750) mm︱workpiece weight 60 kg︱number of teeth 10 - 600 ︱pressure angle 10 - 45 °︱max. helix angle +/- 45 °︱dia. of grinding worm 270 - 350 mm︱width of grinding worm 84 - 104 mm︱feed per revolution 0,4-3,40 mm︱adjustment per stroke 0,01 - 1,0 mm︱total adjustment 9,99 mm︱tangential adjustment 90 mm︱turning speed of grinding worm - grinding 110 - 1900 Upm︱turning speed of grinding worm - profiling 52 - 90 Upm︱electrics - voltage/frequency 380/50 V/Hz︱

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Grinds accuracy DIN 3/4 - Diamond wheel dresser SPA - Extraction - AF filter

max. wheel diameter 300 mm︱gear width 700 mm︱max. module 12 ︱min. module ︱no. of teeth 1 - 999 ︱workpiece length - max. 700 mm︱x-axis 597 mm︱y-axis 183 mm︱a- axis 360 °︱b-axis 182 °︱max.helical angle +/-60 °︱taper diameter 40 mm︱grinding wheel diameter 200 mm︱workpiece diameter 300 mm︱spindle speeds (infinitely variable) 2000 - 10000 U/min︱grinding slide work strokes 550 mm︱grinding slide feeds 15000 mm/min︱center distance betw. workpiece-tool min/max. 200 ︱max.helical angle +/- 60 °︱pitch max. 9000 mm︱

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external gear ginding machine with OPTRONIC CNC model D 140 for X,Y,B,A

max. wheel diameter 300 mm︱gear width 700 mm︱max. module 12 ︱min. module ︱no. of teeth 1 - 999 ︱workpiece length - max. 700 mm︱x-axis 597 mm︱y-axis 183 mm︱a- axis 360 °︱b-axis 182 °︱max.helical angle +/-60 °︱taper diameter 40 mm︱grinding wheel diameter 200 mm︱workpiece diameter 300 mm︱spindle speeds (infinitely variable) 1250 - 6300 U/min︱grinding slide work strokes 550 mm︱grinding slide feeds 15000 mm/min︱center distance betw. workpiece-tool min/max. 200 ︱max.helical angle +/- 60 °︱pitch max. 9000 mm︱

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external gear ginding machine with OPTRONIC CNC model D 140 for X,Y,B,A

max. wheel diameter 300 mm︱gear width 700 mm︱max. module 12 ︱min. module ︱no. of teeth 1 - 999 ︱workpiece length - max. 700 mm︱x-axis 597 mm︱y-axis 183 mm︱a- axis 360 °︱b-axis 182 °︱max.helical angle +/-60 °︱taper diameter 40 mm︱grinding wheel diameter 200 mm︱workpiece diameter 300 mm︱spindle speeds (infinitely variable) 2000 - 10000 U/min︱grinding slide work strokes 550 mm︱grinding slide feeds 15000 mm/min︱center distance betw. workpiece-tool min/max. 200 ︱max.helical angle +/- 60 °︱pitch max. 9000 mm︱

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CNC gear grinding machine, especially suitable for grinding external, and helical gears and for ballig grinding, equipped with : loading crane 250 kg, spraying gun, tool cabinet, device for device for changing the direction of rotation of the grinding spindle, interface according to DIN V 24 RS 232, oil mist extraction CNC control OPTRONIC D 140 for 4 axes X,Y,B,A (Siemens Simatic S5 control)

max. wheel diameter 300 mm︱gear width 700 mm︱max. module 12 ︱min. module ︱no. of teeth 1 - 999 ︱workpiece length - max. 700 mm︱x-axis 597 mm︱y-axis 183 mm︱a- axis 360 °︱b-axis 182 °︱max.helical angle +/-60 °︱taper diameter 40 mm︱grinding wheel diameter 200 mm︱workpiece diameter 300 mm︱spindle speeds (infinitely variable) 2000 - 10000 U/min︱grinding slide work strokes 550 mm︱grinding slide feeds 15000 mm/min︱center distance betw. workpiece-tool min/max. 200 ︱max.helical angle +/- 60 °︱pitch max. 9000 mm︱

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CNC gear grinding machine, especially suitable for grinding external, and helical gears and for ballig grinding, equipped with : loading crane 250 kg, spraying gun, tool cabinet, device for device for changing the direction of rotation of the grinding spindle, interface according to DIN V 24 RS 232, oil mist extraction CNC control OPTRONIC D 140 for 4 axes X,Y,B,A (Siemens Simatic S5 control)

max. wheel diameter 0 mm︱gear width 120 mm︱max. module 3 ︱min. module 1 ︱total power requirement 20 kW︱weight of the machine ca. 7,5 t︱dimensions of the machine ca. m︱ ︱ ︱ ︱ ︱ ︱ ︱

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5 machines in stock, YOM: between 1986 and 1990 Gear Æ, min./max. 55 / 120 mm Gear Æ for shaft-formed parts 80 mm Module (pitch 25.4 - 8.5) 1 - 3 No. of teeth, min./max. 13 / 80 Pressure angle 14 - 30 ° Helix angle, max. 40 ° Workpiece clamping length 145 - 420 mm Grinding worm Æ 300 - 400 mm Grinding worm width 25 - 40 mm Grinding worm speeds, infinitely variable (35 m/s) 1,650 rpm Feed range 0.4 - 4 mm/rev Total electrical load 20 kW - 380 V - 50 Hz Weight 7,500 kg Accessories / Special Features * REISHAUER Electronic Control = Easy programming of workpiece parameters and grinding process. * Automatic workpiece handling system for shaft-formed parts, approx. 350 mm long, including hydraulic loading and unloading device. Fully automatic production is possible. * Profile correction is possible for height and width crowning. * Separate hydraulic unit. * Separate switch cabinet. * Fully automatic profiling with a swivable diamond gear mounted on a shaft corresponding to the workpiece. Dressing intervals can be preset, with compensation. Price, ex stock, each DM 245,000.-- These machines are very suitable for grinding tooth flanks on large series of helical gears, with or without profile modification at a minimum cost. Separate electronically controlled drive of grinding worm and workpiece results in high precision and good surface quality of gears. Constant speed is controlled by an angular decoder. Grinding infeed is possible for the full profile depth as well as by a preset additional forwards and backwards movement of workpiece. Both flanks are continuously meshed and ground. Profile corrections during dressing process are made by the same method (by a diamond gear corresponding to the workpiece). All functions are controlled by a microprocessor. Code numbers for various errors are displayed.

max. wheel diameter 300 mm︱gear width 750 mm︱max. module 10 ︱total power requirement 20 kW︱weight of the machine ca. 7,5 t︱

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K A P P CNC-Controlled Horizontal Gear and Profile Grinding Machine Model VAS 482 CNC Year 1984 Serial No. 40.208 __________________________________________________________________ Distance between centres / length of workpiece 750 mm Height of centres above table 200 mm Max. grinding length 550 mm Workpiece Ø, min./max. 40 / 300 mm Work spindle bore 120 mm Module range 1 - 10 No. of teeth 1 - 999 Grinding wheel speeds 2,000 - 16,000 rpm Grinding wheel Ø, depending on module 40 - 200 mm Vertical adjustment of grinding spindle slide, max. 200 mm Cross adjustment of grinding spindle slide 100 mm Spindle drive 6 kW Total electrical load 20 kW - 380 V - 50 Hz Weight 7,500 kg Accessories / Special Features * Ideal machine for finish grinding of external straight and helical teeth, using BORAZON diamond profile wheels. Very suitable for small numbers of workpieces. Grinding wheel has to be changed after approx. 3,000 workpieces. Wheel can be recoated. * OPTRONIC CNC Control, Model CNC D 140, for all 4 axes: X, Y, A and B (longitudinal table movement, vertical grinding slide movement, indexing/no. of teeth, and helical angle). All steps can be programmed directly on the control panel, including electronic handwheel, digital display of the program steps, ampere meter for the grinding spindle, digital error display, override, and automatic grinding cycle. * Crowning is possible via the control (copy function). * Infinitely variable adjustment of grinding spindle drive 0 - 16,000 rpm. * Approx. 6 assorted grinding spindle units are available for easy change on grinding head. * Hydraulic tailstock for workpiece clamping. * Fully covered working area with automatic sliding doors. * Washing device. * Electronic centering device for finding the tooth gap. * Workpiece pre-centering on table. * Central lubrication. * Built-on switch cabinet. * Built-on hydraulic unit. At present there is no coolant device available because the machine was connected to a central unit. Condition : Good. Machine can soon be inspected under power. Delivery : Ex stock, as inspected Payment : Net, after conclusion of contract Thank you for your interest. We always have a good selection of gear machines available. Please let us know your requirements.