RAPID 4000

HÖFLER Cylindrical Gear Grinding Machine

Giant with absolute precision, speed, and flexibility

The RAPID 4000 cylindrical gear grinding machine is the specialist for large, heavy workpieces up to 4,000 mm in diameter and weighing up to 40 tons. These giants combine maximum dimensions with absolute precision, speed, and flexibility: Topologically correct results with reduced grinding times and an optional internal grinding device form the basis for economical, reliable cylindrical gear production on this scale.

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HÖFLER Cylindrical Gear Grinding Machine RAPID 4000

Highly flexible grinding head with torque motor swivel drive

  • Genuine 5-axis machining possible
  • Maximum rigidity and positioning precision as well as no wear even during the grinding process 
  • Grinding head position monitoring thanks to integrated measurement system
  • Topological modifications depending on requirements in single-flank or double-flank grinding
  • Integrated measuring device with 3D probe for checking the most difficult topologies on the grinding machine

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HÖFLER Cylindrical Gear Grinding Machine RAPID 4000

Reducing traversing paths thanks to the grinding wheel double-dressing system

  • The double-dressing system is positioned directly on the grinding head and fitted with two diamond dressing rolls
  • Reduced traversing paths and dressing times
  • Freely dressable profile heights on the grinding wheel
  • Highly accurate and low-wear grinding wheel profiling according to different parameters

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HÖFLER Cylindrical Gear Grinding Machine RAPID 4000

Spindle options for special requirements (K Variant)

  • Double helical gearing with small gap distances
  • In cases where toothing gaps are small: pinion shafts and spline gears, for example
  • Various grinding wheel adapters for grinding wheel diameters of 300 - 20 mm
  • No spindle change required
  • Dressable and non-dressable CBN grinding wheels available

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HÖFLER Cylindrical Gear Grinding Machine RAPID 4000

Internal gear grinding arms (optional)

  • Various internal gear grinding arms available depending on application and sector
  • Easy assembly for quick set-up times
  • Grinding of straight and helical gearings or couplings
  • Separate dressing unit inside the machine based on the principle of dressing for external gearings

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HÖFLER Cylindrical Gear Grinding Machine RAPID 4000

Precise machine table control via torque motor drive

  • High engine torque of up to 50 rpm reduces alignment and pitch times, and facilitates the external cylindrical grinding of gear wheels
  • Automatic table drive adaptation to changing mass moments of inertia, without any user intervention
  • Wear-free torque motor ensures high investment security
  • Fast, maintenance-free, high-precision

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HÖFLER Cylindrical Gear Grinding Machine RAPID 4000

Two-column version with RAPID AI variant for large-module gearings (optional)

  • External and internal machining in a single machine without retooling, with the same clamping
  • Integrated swivel axis
  • Integrated dressing unit
  • Insertion depth up to 1,000 mm
  • Internal gears with large helix angles are also grindable without collision

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HÖFLER Cylindrical Gear Grinding Machine RAPID 4000

Hob sharpening

  • Costs reduced as specialist machines are no longer required
  • Automatic tool centering thanks to measuring probe and grinding wheel
  • Freely adjustable process values and dressing parameters minimize the tool surface roughness and increase its quality and service life
  • Ideal even for very large hobs
  • Profile, tooth flank, and pitch of the sharpened surfaces can be measured