RAPID 1250

HÖFLER Cylindrical Gear Grinding Machine


Reduced grinding times for more production efficiency

Cylindrical gear manufacturers all around the world appreciate the advantages and productivity of the RAPID 1250 for workpiece diameters of up to 1,250 mm. With standard features that include a cast polymer machine bed, a torque motor-driven machine table, an integrated inspection system, a sturdy grinding spindle, and a dressing system for frequent profile modifications, it is the perfect solution for cylindrical gear manufacturers. Technologies such as high-speed grinding [HsG] and best-fit grinding [BfG] also reduce grinding times by up to 30 % ensuring a clear leading edge in production efficiency for the entire manufacturing process.


  • 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 1,250 mm

(Cylindrical) gear root circle diameter (min.)

Ø 0 mm

Axial stroke length

1,000 (1,500)* mm

Work area over table (min. - max.)

350 – 1,350 (1,850)* mm

Center distance above table (min. - max.)

500 – 1,500 (2,000)* mm

Profile height (max.)

80 (60/20)**** mm

Module (min. – max.)

0.5-35***

Pressure angle

without restriction

Swivel angle

–45°/+120°

Grinding wheel diameter (max.)

Ø 400 (300/100)**** mm

Grinding wheel diameter shoulder (min.)

Ø 206 (110/20)**** mm

Grinding wheel width (max.)

90 (60/20)**** mm

Grinding spindle drive (max.)

24 (37)* (38.5)**** kW

Stroke speed of tool slide (max.)

6 m/min (12 m/min)*

Table diameter

Ø 980 mm

Table load (max.)

8,000 kg

Table hole (diameter x depth)

Ø 370 x 400 mm

Table rotation speed (max.)

0 – 30 rpm

Dressing roll (diameter x width)

Ø 120 x 26 (Ø 160 x 13)**** mm

Machine dimensions (L x W x H) approx. incl. all additional components

4,650 x 3,336 x 3,565 (4,165**) mm

General Machine Data
Net weight approx.

28,000 – 30,000 kg**

Internal grinding*

Various optional internal grinding arms available

Range of Application
General Data
(Cylindrical) gear outer diameter (max.) Ø 1,250 mm
(Cylindrical) gear root circle diameter (min.) Ø 0 mm
Axial stroke length 1,000 (1,500)* mm
Work area over table (min. - max.) 350 – 1,350 (1,850)* mm
Center distance above table (min. - max.) 500 – 1,500 (2,000)* mm
Profile height (max.) 80 (60/20)**** mm
Module (min. – max.) 0.5-35***
Pressure angle without restriction
Swivel angle –45°/+120°
Grinding wheel diameter (max.) Ø 400 (300/100)**** mm
Grinding wheel diameter shoulder (min.) Ø 206 (110/20)**** mm
Grinding wheel width (max.) 90 (60/20)**** mm
Grinding spindle drive (max.) 24 (37)* (38.5)**** kW
Stroke speed of tool slide (max.) 6 m/min (12 m/min)*
Table diameter Ø 980 mm
Table load (max.) 8,000 kg
Table hole (diameter x depth) Ø 370 x 400 mm
Table rotation speed (max.) 0 – 30 rpm
Dressing roll (diameter x width) Ø 120 x 26 (Ø 160 x 13)**** mm
Machine dimensions (L x W x H) approx. incl. all additional components 4,650 x 3,336 x 3,565 (4,165**) mm
General Machine Data
Net weight approx. 28,000 – 30,000 kg**
Internal grinding* Various optional internal grinding arms available

* Available at additional cost
** Depends on machine construction combined with ****
*** Depends on gear geometry
**** K variant: optional grinding spindle, specifically for small grinding wheels *

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.
RAPID 1250 Brochure English
(PDF, 5 MB)
1/7
*Compulsory field
Your local sales representative will be found below locations.
KLINGELNBERG AG
Binzmühlestrasse 171
8050 Zürich, Switzerland
Fon: +41 44 278 7979
Fax: +41 44 273 1594
KLINGELNBERG GmbH
Peterstrasse 45
42499 Hückeswagen
Fon: +49 2192 81-0
Fax: +49 2192 81-200
KLINGELNBERG GmbH
Industriestrasse 19
76275 Ettlingen, Germany
Fon: +49 7243 559-0
Fax: +49 7243 599-165
www.klingelnberg.com marketing@klingelnberg.com © 2019  KLINGELNBERG