Klingelnberg Group: RAPID 2500

RAPID 2500

HÖFLER Cylindrical Gear Grinding Machine

Giant with absolute precision, speed, and flexibility

The RAPID 2500 cylindrical gear grinding machine is the specialist for large, heavy workpieces up to 2,500 mm in diameter and weighing up to 25 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.

Highly flexible direct-drive 5-axis grinding head and swivel angle adjustment during the grinding process
Stable, damping-optimized single-bed base made of cast polymer
Precise machine table control via torque motor drive
Optional internal gear grinding arms
Controlled grinding result thanks to integrated measurements and automatic corrections during the grinding process
Energy efficiency (e²)

Range of Application
General Data
(Cylindrical) gear outer diameter (max.)	Ø 2,600 mm
(Cylindrical) gear root circle diameter (min.)	Ø 0 mm
Axial stroke length	1,500 (2,020)* mm
Center distance above table (min. – max.)	1,000 – 2,300 (2,800)* mm
Profile height (max.)	100 mm
Work area over table (min. – max.)	540 – 2,040 (2,560)* mm
Module (min. – max.)	1 – 50***
Pressure angle	without restriction
Swivel angle	–45°/+120°
Grinding wheel diameter (max.)	Ø 450 mm
Grinding wheel diameter shoulder (min.)	Ø 206 mm
Grinding wheel width (max.)	130 mm
Grinding spindle drive (max.)	24 (37)* kW
Stroke speed of tool slide (max.)	6 m/min (12 m/min)*
Table diameter	Ø 1,850 mm
Table load (max.)	25,000 kg
Table hole (diameter x depth)	Ø 750 x 1,300 mm
Table rotation speed (max.)	0 – 50 rpm
Recommended table rotation speed during round ground operations (max.)	25 rpm
Dressing roll (diameter x width)	Ø 120 x 26 mm
General Machine Data
Machine dimensions (L x W x H) approx. incl. all additional components	9,900 x 8,400 x 5,200 (5,700)** mm
Net weight approx.	65,000 – 67,000 kg**
Internal grinding*	Various optional internal grinding arms available

* Available at additional cost
** Depends on machine construction
*** Depends on gear geometry

Subject to changes.

The machine dimensions of the standard version are for orientation only. The final machine dimension / final space requirement depends on the individual configuration of the machine.

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RAPID 2500 Brochure English (pdf / 5 MB)

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HÖFLER Cylindrical Gear Grinding Machine RAPID 2500

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 2500

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 2500

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 2500

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 2500

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 2500

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 2500

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

RAPID 2500

HÖFLER Cylindrical Gear Grinding Machine

Giant with absolute precision, speed, and flexibility

Highlight

HÖFLER Cylindrical Gear Grinding Machine RAPID 2500

Highly flexible grinding head with torque motor swivel drive

Highlight

HÖFLER Cylindrical Gear Grinding Machine RAPID 2500

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

Highlight

HÖFLER Cylindrical Gear Grinding Machine RAPID 2500

Spindle options for special requirements (K Variant)

Highlight

HÖFLER Cylindrical Gear Grinding Machine RAPID 2500

Internal gear grinding arms (optional)

Highlight

HÖFLER Cylindrical Gear Grinding Machine RAPID 2500

Precise machine table control via torque motor drive

Highlight

HÖFLER Cylindrical Gear Grinding Machine RAPID 2500

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

Highlight

HÖFLER Cylindrical Gear Grinding Machine RAPID 2500

Hob sharpening

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