gear cutting and hobbing machines used for sale (208)

Key data: 3500 mm, 36

Dear Sirs, We are pleased to offer a rare opportunity to acquire a HÖFLER Porta 3500 CNC Gear Grinding Machine, a high-capacity later-generation traveling gantry machine designed for precision spur and helical gear grinding, internal and external grinding applications. The machine is offered As Is” with limited use history and reasonable flexibility on pricing. Machine Overview The HÖFLER Porta 3500 is a later-generation traveling gantry CNC gear grinding machine designed for the precision finish grinding of large external and internal spur and helical gears. It is capable of grinding gears up to 3,500 mm (137.8”) diameter with exceptional accuracy and productivity. Serial Number: 928 Year of Manufacture: 2007 The machine has accumulated only approximately 6,800 operating hours since installation and is considered to have very limited use. Main Technical Specifica ...

Key data: 3500 mm

HÖFLER Porta 3500 CNC Gear Grinding Machine We are pleased to offer a rare opportunity to acquire a HÖFLER Porta 3500 CNC Spur/Helical, Internal/External Gear Grinding Machine, a large-capacity later-generation traveling gantry system with very low operating hours. Machine Overview Make/Model: HÖFLER Porta 3500 CNC Year of Manufacture: 2007 Installation Year: 2010 Total Operating Hours: approx. 6,800 hours Design: Later-generation traveling gantry system Condition: The machine is currently in still under power and requires reinstallation of a refurbished hydraulic drive motor (included) prior to recommissioning. Key Specifications (Maximum capacities as per OEM data) External Grinding Diameter: 3500 mm (137.8”) Internal Grinding Diameter: 800 mm (31.5”) Tooth Profile Height: 80 mm (3.15”) Helix Angle: ±45° Max Module: 20 (1.34 DP) Grindi ...

Key data: 400 mm

S375G SAMPUTENSILI "CNC" Horizontal Gear Profile Grinding Machine, suitable for the precision grinding of external spur and helical gears and shafts, as well as internal spur and helical gears and splines. The machine has the added capability of grinding worms, rotors, and other screw-type workpieces of similar profile up to 14.76” (375mm) which was factory OEM standard - but delivered at 15.74" (400mm) diameter, and 34.25” (870mm) in length. The machine is also equipped with the optional” on-board CNC” dressing feature, and the on-board CNC” gear inspection system-feature. Serial No. 2376 (New in 2007) This is a first-class, highly versatile gear grinding machine, in superlative” condition throughout, which may be inspected, in running service, at our customer’s plant facility, by appointment. -The machine would require acquisition & adaptation of an appropria ...

Key data: 4000 mm, 1560 mm, 32

CNC Gear Gringing machine HOFLER H4000 Year 1990 Maximum Workpiece Diameter 4000mm Gear Width 1560mm Module 3-32 Number of Teeth 12-768 Maximum Angle of Teeth 35 R/L Grad Pressure Angle 14-31 Degrees Table Diameter 1900mm Table Bore Diameter 750mm Maximum Workpiece Weight 35000kg Grinding Head Stroke 1600mm Ways hydrostatic Coolant, Filtration System Way Covers: rubber roll-up, metal telescopic and bellows neoprene Power 3 PH / 60 Hz / 230 – 460 V Equipped with: Reutlinger balancer Oil mist extraction system HOFLER TPF-40/1100 measuring machine Year: 1990 Max. Gear Diameter: 4000mm Both machines are in Excellent condition This machine was used to grind the gears for the US nuclear submarine transmissions (gearboxes). The machine was originally purchased new by General Electric for the Lynn Massachusetts Facility. We purchased it from them in excellent ...

Key data: 360 mm

Reishauer Model RZ362A CNC Gear Grinder Maximum Wheel Diameter: 14.17” Maximum Module: 0.275” Minimum Module: 0.0039” Slide Stroke: 6.88” Maximum Helix Angle: ± 45° Maximum Number of Teeth: 600 Minimum Number of Teeth: 6 Maximum Workpiece Weight: 132 lbs. Grinding Wheel Width: 4.09” Grinding Wheel Diameter: 11.02” – 13.77” Speed of Grinding Worm when Grinding: 1100 – 2330 U/min Speed of Grinding Worm when Profiling: 50 – 95 U/min Feed per Revolution of Workpiece: 0 – 0.133” Grinding Worm Infeed Speed: Up to 99.9mm/min / 3.93 IPM Approximate Weight: 14,553 lbs. EQUIPPED WITH: Reishauer CNC Controls. Dittel MBA2000 Balancing Controller. Elbaron R12D Mist Collector. Kato Motor Generator. Freestanding Hydraulic Unit. Hydraulic Oil Pump-Sump System. Free Standing Electrical Control Cabinet. Tailstock. (2) Wheel Hubs. Manuals and Drawin ...

CNC Gear Gringing machine HOFLER H4000 Year 1990 Maximum Workpiece Diameter 4000mm Gear Width 1560mm Module 3-32 Number of Teeth 12-768 Maximum Angle of Teeth 35 R/L Grad Pressure Angle 14-31 Degrees Table Diameter 1900mm Table Bore Diameter 750mm Maximum Workpiece Weight 35000kg Grinding Head Stroke 1600mm Ways hydrostatic Coolant, Filtration System Way Covers: rubber roll-up, metal telescopic and bellows neoprene Power 3 PH / 60 Hz / 230 – 460 V Equipped with: Reutlinger balancer Oil mist extraction system HOFLER TPF-40/1100 measuring machine Year: 1990 Max. Gear Diameter: 4000mm Both machines are in Excellent condition This machine was used to grind the gears for the US nuclear submarine transmissions (gearboxes). The machine was originally purchased new by General Electric for the Lynn Massachusetts Facility. We purchased it from them in excellent ...

max. wheel diameter:200 mmgear width:250 mmmax. module:3 min. module:0,5 total power requirement:45 kWweight of the machine ca.:8,5 tdimensions of the machine ca.:4,4 x 2,4 x 2,7 mMachine out of prototype productionWithout automation

grinding wheel diameter:400 mmtotal power requirement:3 kWweight of the machine ca.:1,5 tdimensions of the machine ca.:1,5 x 1,4 x 1,3 mDressing Grinder for gears REISHAUER AMmax. width of grinding wheel 104 mmmax. dia. of grinding wheel 400 mmmax. module 7min. module 0,5pressure angle 10 - 30 °grinding worm dia. 270 - 400 mmwidth of grinding worm 62/84/104 mmgrinding worm turning speeds: at profiling 18/35/70 U/minelectrics - voltage/frequency 380 / 50 V/Hzlong. movement of crowning device 156 mm

control:siemens 1P 6SL 3054--0CE01-1AA0 Documents:vorhanden

weight of the machine ca.:8 tdimensions of the machine ca.:2,95 x 1,6 x 2,36 mchucking diameter:250 mmswing diameter:265 mmx-travel:170 mmz-travel:200 mmspindle turning speed range:1.500 U/minspindle bearing diameter:100 mmPick-up machine

weight:22 t

max. wheel diameter:200 mmgear width:250 mmmax. module:3 min. module:0,5 total power requirement:45 kWweight of the machine ca.:6,5 tdimensions of the machine ca.:4,4 x 2,4 x 2,7 mMachine out of prototype productionWithout automation

max. wheel diameter:40-200 mmtotal power requirement:31,3 kWweight of the machine ca.:4 tdimensions of the machine ca.:1,8 x 2,2 x 1,8 m

max. wheel diameter:150 mmgear width: mmmax. module:3,5 min. module:1,25 total power requirement: kWweight of the machine ca.:6,5 tdimensions of the machine ca.:2,35 x 2,10 x 2,35 mWidth of teeth:45 mmboring diameter:100 mmsurface area:1300 x 300 mm

max. wheel diameter:150 mmgear width: mmmax. module:3,5 min. module:1,25 total power requirement: kWweight of the machine ca.:6,5 tdimensions of the machine ca.:2,35 x 2,10 x 2,35 mWidth of teeth:45 mmboring diameter:100 mmsurface area:1300 x 300 mm

Dressing diameter: Planing width: min. module: for Reishauer RZ150

max. wheel diameter:275 mmgear width:55 mmmax. module:6,5 min. module:1,5 Face Hobbing-Continious ProcessContinuous process: The workpiece and tool (usually Spiron) rotate at the same time, and all teeth are created in one operation at the same time. Knife head has several knife groups (not arranged in a circle) Parallel tooth Conical tooth tip surface Single Item procedure: The workpiece is stationary and the tool (usually Arcon) rotates and cuts a tooth by immersing the tool. Once a tooth is cut, the tool moves out of the tooth again, the workpiece divides by one tooth width and the next tooth is cut until all teeth are finished. Knife head has arranged all knives in a circular path. Conical tooth height Parallel tooth head surfaceC28 can do both, wheel + pinion. However, a C28 must be ?prepared? for the individual part procedure. I.e. direct measuring system + part gear brake, workpie ...

max. wheel diameter:275 mmgear width:55 mmmax. module:6,5 min. module:1,5 Face Hobbing-Continious ProcessContinuous process: The workpiece and tool (usually Spiron) rotate at the same time, and all teeth are created in one operation at the same time. Knife head has several knife groups (not arranged in a circle) Parallel tooth Conical tooth tip surface Single Item procedure: The workpiece is stationary and the tool (usually Arcon) rotates and cuts a tooth by immersing the tool. Once a tooth is cut, the tool moves out of the tooth again, the workpiece divides by one tooth width and the next tooth is cut until all teeth are finished. Knife head has arranged all knives in a circular path. Conical tooth height Parallel tooth head surfaceC28 can do both, wheel + pinion. However, a C28 must be ?prepared? for the individual part procedure. I.e. direct measuring system + part gear brake, workpie ...

max. wheel diameter:50 mmgear width:20 mmmax. module:4 mmmin. module:0,1 mmtotal power requirement:12,5 kWweight of the machine ca.:4000 kgdimensions of the machine ca.:2,2 x 2,5 x 2,3 mworkpiece length - max.:300 mm

weight of the machine ca.:4 t

total power requirement:413 kWInduction hardening machine Rotary table Eldec: Z (servo drive 750 mm Y (electromechanical) 300 mmX (electromechanical) 200 mmMaximum part diameter 600 mmMaximum workpiece weight 500 kg High frequency generator type HFG 200 Medium frequency generator type MFG 30

max. wheel diameter:260 mmgear width:320 mmmax. module:5 weight of the machine ca.:21 tdimensions of the machine ca.:8,71 x 5,97 x 3,49 mno. of teeth:1...999 max. helix angle:+45/-45 °pitch min.:0,1 mmpitch max.:1000 mmX-axis:345 mmy-axis:250 mmZ-axis:320 mmb-axis:360 °c-axis:360 °Coolant is not available. It was central and there is only a booster pump without filtering. For loading system there is a 2-axes robot with workpiece conveyor.

max. wheel diameter:280 mmmax. module:7 weight of the machine ca.:13 ttable turning speeds:100 U/mintable diameter:250 mmmin. number of teeth:4 hob turning speeds:1500 U/minmax. hob diameter:160 cutter length max.:230 mmMachine in good condition.Available 01.08.2024

max. wheel diameter:200 mmgear width:60 mmmax. module:7 weight of the machine ca.:15 ttable diameter:180 mmtable turning speeds:100 U/minhob turning speeds:750 U/minMachine in good condition, without feed, without automationAvailable 24.08.2024

max. wheel diameter:900 mmmax. module:10 weight of the machine ca.:8200 kos.hob dia. - max.:190 mmcutter length max.:320 mmmilling spindle speeds (infinitely variable):13-80 U/minworkpiece length - max.:750 mmmax. workpiece diameter:150 mmCounter holder milling mandrel is missing

max. wheel diameter:280 mmmax. module:5 min. module:1 min. number of teeth:7 toolpiece turning speed range:4.000...10.000 U/mintool length:210 mmCBN

max. wheel diameter:200 mmgear width:50 mmmax. module:6 table diameter:168,14 mmboring diameter:65,532 mmweight of the machine ca.:11 ttable turning speeds:0-1.000 U/minlength of stroke min./max.:0-70 mmno. of strokes:180-1.800 StückThis machine can be used to make tandler gears. However, for helical gearing, a helical guide is also required.

max. wheel diameter:300 mmgear width:110 mmmax. module:6 weight of the machine ca.:10,5 t