Cold Rolling Machine

rolling capacity max. NA t︱workpiece diameter 38 mm︱workpiece length 500 mm︱total power requirement 24 kW︱weight of the machine ca. 10 t︱dimensions of the machine ca. m︱

---

Max.Ø tool slide stroke 760 mm Max.Ø rack length 610 mm Length of workpiece between centres, approx. 500 mm Max. tooth width / profile width 92 mm Max. workpiece Ø 38 mm Tailstock stroke on outboard support, hydraulic, approx. 500 mm Module range 0.3 - 1.3 Total electrical load, approx. 24 kW - 380 V - 50 Hz Weight, approx. 10,000 kg Accessories / Special Features * KBH Workpiece Feed Device, standing parallel to the machine, at present set-up for feed-in and feed-out of shaft-formed workpieces, approx. Ø 16 x 200 mm long, with prism conveyor belt and lifting station for 2 shafts (blank and finished part), as well as workpiece positioning control. * Originally, external gears were formed on the machine using pinion cages (no. of teeth = 25), Ø approx. 32 mm x 14 mm long, workpiece Ø approx. 80 x 80 mm long. * Various accessories: * Separate switch cabinet. * Separate hydraulic unit, 900 l. * Coolant device in the machine. * Control panel with malfunction message in plaintext, etc. Roto Flo machines are ideal for mass production of smaller gears/profiles. The coldforming process is a lot faster and more economical than other chip removing methods. Workpieces are clamped between 2 live centres and 2 synchronous opposed directional coldforming racks simultaneously engage the workpart and start rotation. During rotation, the profile is formed successively within one stroke. In the calibrating zone, the profiling and surfacing performance of the tool are optimised. Profiles do not require a run-out. The coldforming process requires a rigid and heavy duty construction of the machine, which ensures the required precision over the years. Between 25,000 and 100,000 working cycles can be performed with one set of racks, also for serrations. Condition : Very good. Machine can 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 what you need.

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︱

---

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︱

---

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︱ ︱ ︱ ︱ ︱ ︱ ︱

---

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 2500 mm︱gear width 1200 mm︱max. module 32 ︱min. module 3 ︱total power requirement 25 kW︱weight of the machine ca. 60 t︱dimensions of the machine ca. m︱

---

Gear , min. / max. 180 / 2,500 mm Module 3 - 32 Helix angle, max. 10 - 35 ° Gear width for straight gears 1,200 mm Stroke length, approx. 100 - 1,200 mm No. of strokes 80 - 350 /min Stroke position adjustable 300 mm Stroke speed 4 - 40 mm Max. weight of workpiece, approx. 18,000 kg Min. / max. no. of teeth 16 / 576 Table size x bore 1,400 x 500 mm Grinding wheel Ø, approx. 500 mm Grinding wheel peripheral speed 34 m/s Total electrical load, approx. 45 kW - 380 V - 50 Hz Weight of machine, approx. 60,000 kg Accessories / Special Features: * Hydrostatic guides in grinding slide, table and in all other guideways. * Completely covered working area with sliding doors. * Automatic grinding process for various cycles, with settings for roughing, finishing, fine finishing and automatic dressing cycle after preset number of teeth. * Profile correction is possible via appropriate dressing, as well as additional movement of grinding slide (depth and width crowning). * Approx. 50 change gears. * Grinding slideTilt display device. * Large coolant device with band filter and oil mist exhaust. * Separate switch cabinet. * Separate hydraulic unit. * Separate oil cooling unit. Condition : Very good. Machine can soon be inspected in our showrooms. It is not under power at present. Delivery : Ex stock, as inspected. Payment : Net, after conclusion of contract. The machine comes directly from a first class gear factory, where it was grinding Quality 5 - 6. Grinding diagrams are available. This type and quality of machine is rarely available. Thank you for your interest. We always have a good selection of gear machines available. Please let us know what you need.