آلة طحن اللولب REISHAUER NRK 200mm

workpiece diameter: 200 mm
threading length: 450 mm
thread pitch: 03 - 80 mm
total power requirement: 15 kW
weight of the machine ca: 4500 kg
dimensions of the machine ca: m

R E I S H A U E R (Switzerland)
Universal Thread- and Worm Grinding Machine
Model NRK year 1983 Ser.-no. 60 200-10
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Distance between centres 700 mm
Grinding length 450 mm
Workpiece-? min./max. 3 – 200 mm
Workspindle bore 38 mm

Lead range for single-rib wheels min./max. 0,3 – 80 mm
Lead range for multi-rib wheels 0,6 – 6 mm
Max. lead angle 2 x 25 °

Grinding wheel dimensions, ? x width 350 x 20/40 mm
Relief amount 0 – 4 mm
Pre-selectable number of flutes 2-12/14/16

18 workpiece speeds 1,2 – 60 rpm
Grinding wheel speeds 1.850 rpm
Crushing/dressing speed 72 rpm
Reverse speed of table slide 500 mm/Min.

Spindle drive approx. 5,5 kW
Total electrical load 15 kW - 380 V - 50 cycles
Weight 4.000 kg

Accessories / Special Features

• Very universal Grinder for grinding External and Internal Threads (Taps)
and Worm Gears and also Profiling rolls for Grinding wheels.
We have following equipment and accessories delivered with the machine
• Mounted manual dressing device (#23) for profiling of Single-rib wheels,
left and right flanks and top of grinding wheel
• Relief grinding device / plunge-cut grinding with 2 different cams
• Separate, not motorized Crushing device (#21) to be mounted over the
grinding wheel for dressing multi ribbed grinding wheels
• Crushing roll holding attachment for mounting on workhead, various cams for
lead Open 3 point steady for shaft work, closed steady for internal
grinding works
• 3-Jaw chuck make REISHAUER, Ø 160 mm, stop bar with gauge for infeed stroke
• Workpiece driver with center for workhead, two arbors for clamping thread
rolling tools
• Manual Indexing device for generating flutes (#15), Grinding wheel
balancing unit with base plate (#9)
• Complete set of change gears, 10 separate grinding wheel flanges, grinding
wheels,
• Swing down hood over the Machining area with oilmist suction, Large coolant
tank including pump (#10500)
Var. coolant nozzles, adjustable holder for microscope on machine and
basement for measuring microscope.
Available with extra payment:
ORIGINAL REISHAUER Internal Thread Grinding attachment (#25) to be fixed on the
grinding head slide with crushing device for profiling the grinding pins, with
pulleys, toolarbors, etc.

Condition: very good - machine can be inspected under power Rare Machine!
Delivery : ex stock – as inspected
Payment : net – after completion of contract