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 2600 mm︱gear width 600 mm︱max. module . ︱control Sinumerik 840 D ︱WORKPIECE DURING INTERNAL GRINDING ︱max. ring thickness 300 mm︱max. workpiece inner diameter 2000 mm︱min. workpiece inner diameter 1100 mm︱TOOL (PROFILE DISK) ︱max. diameter 400 mm︱max. width 65 mm︱diameter of spindle for taking the disk 127 mm︱MACHINE ︱slide travel in the X-direction max. 590 mm︱slide travel in the Z-direction max. 1180 mm︱grinding head - swivable +/- 45 °︱WORKPIECE TABLE ︱table diameter 1460 mm︱boring diameter 500 mm︱table load 20000 kg︱

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ONLY FOR INTERNAL GRINDING Equipment / Accessories: - coolant filter system HOFFMANN type PWT 290-3, year 2009

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 25 - 220 mm︱max. module 4 ︱min. module 0,5 ︱Control 840 D ︱x-axis 85 - 240 mm︱y-axis + / - 120 mm︱z-axis 100 - 500 mm︱A - axis + / - 45° °︱tool diameter 160 - 220 mm︱width of the tool 180 mm︱feed X/Y/Z/-axis 1000/300/1000 mm/min︱total power requirement 68 kW︱weight of the machine ca. 9,5 t︱dimensions of the machine ca. 5,5 x 5,5 x 2,85 m︱

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Internal dresser Workpiece counter bearing 4-fold / changing device Siemens Sinumeric 840D Knoll coolant filter system AE 1114 Partial workpiece conveyor belt, not complete Fire extinguishing system without extinguishing agent bottles The machine was also connected to the central coolant

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 180 mm︱max. module 5 ︱min. module 1 ︱Control LH 90 ︱min. number of teeth 7 ︱toolpiece turning speed range 4.000 - 10.000 U/min︱tool diameter 145 - 175 mm︱total power requirement 25 kW︱tool length - max. 210 mm︱Shift travel +/- 100 mm︱V-axis 200 mm︱grinding head swing angle +/- 35 °︱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 No dressing turnable Tailstock Workpiece changer on Tailstock No Automation awaylable external coolant tank with pump

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 600 mm︱gear width 330 mm︱max. module 12 ︱min. module 0,5 ︱number of teeth 1-999 ︱helix angle +/- 45 Grad︱max. workpiece weight 400 kg︱centre distance 1000 mm︱max. dia. of grinding wheel 180-250 mm︱grinding wheel speeds 2000-7000 U/min︱Control Oerlikon Opal CNC ︱total power requirement 60 kW︱weight of the machine ca. 16 t︱dimensions of the machine ca. 6 x 7 x 5 m︱

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This 7-axis CNC grinding machine is used for profil grinding of spur and helical gears and similar profiles highest quality. Accessories: - Counter bearing with automatically cone travel - teach in unit with measure button - Complete protection cabinet for working area - Cooling system with paperband filter and cooler - CNC-dresser - 3 grinding spindles : -- External grinding spindle with grinding wheel Ø 300mm -- External grinding spindle with grinding wheel Ø 80mm -- Internal grinding spindle with Ø 125 mm grinding wheel

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 250 mm︱gear width 320 mm︱max. module 10 ︱min. module 0,1 ︱number of teeth 2 - 999 ︱max.helical angle +/- 90 °︱grinding wheel diameter max 200 mm︱x-axis 320 mm︱y-axis 150 mm︱z-axis +/- 81,5 mm︱a- axis 360 °︱b-axis +/- 90 °︱control ︱total power requirement Kapp D 200 CNC︱weight of the machine ca. 9,5 t︱dimensions of the machine ca. 5,1 x 4,3 x 2,6 m︱

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with complete cooling system

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 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 300 mm︱gear width 180 mm︱max. module 5 ︱min. module 0,5 ︱root circle diameter 10 mm︱slide stroke 180 mm︱clamping length 420 mm︱number of teeth 7 - 256 ︱max. helix angle +/- 45 °︱max. dia. of grinding wheel 350/270 mm︱turning speeds 1100 - 1900 U/min︱total power requirement 18 kW︱weight of the machine ca. 4,9 t︱dimensions of the machine ca. 4,5 x 5,0 x 2,1 m︱

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equipped with: - set of change gears - complete covering - dressing unit - automatic Shifting - Exhauster

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) 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 grinding machine with OPTRONIC CNC model D 140 for X,Y,B,A axis and external loading crane (250kg)

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 grinding machine with OPTRONIC CNC model D 140 for X,Y,B,A axis and external loading crane (250kg)

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.