07.01.2026

Boosting productivity with the HPR400-system

MAPAL presents three new practical solutions in the field of reaming.

Complex processes and high quality requirements call for fine machining systems that are effective, precise and easy to use. With HPR400 and HPR400 plus for ultra-productive reaming of large diameters, MAPAL is meeting precisely these requirements.

#Company #Products #Technology #Reaming&FineBoring
The image shows the tool for the one-shot solution
  • The image shows the tool for the one-shot solution
    1/4

    The combination tool with an ISO leading stage and HPR400 system enables bores to be finished with up to 6 mm of stock allowance in a single working step. The main machining is done by the ISO inserts, while the HPR400 system takes care of the finishing. ©MAPAL 

  • The image shows the HPR400-plus tool for machining face grooves.
    2/4

    The HPR400 plus series was specifically developed for machining face grooves. The new tool concept comprises two usable cutting edges. Despite the face groove, the tool and inserts are stable and reliable in machining. ©MAPAL 

  • The image shows the HPR400 tool for machining stator housing
    3/4

    The HPR400 system is also suitable for finishing the stator bore in electric motors. The technology enables a higher output with lower effort, thus boosting productivity. ©MAPAL 

  • The image shows the newly developed solutions of the HPR400 reamer.
    4/4

    The HPR400 system is also suitable for finishing the stator bore in electric motors. The technology enables a higher output with lower effort, thus boosting productivity. ©MAPAL 
Complex processes and high quality requirements call for fine machining systems that are effective, precise and easy to use. With HPR400 and HPR400 plus for ultra-productive reaming of large diameters, MAPAL is meeting precisely these requirements. The multi-bladed tool systems offer the advantage that the inserts with one (HPR400) or four (HPR400 plus) cutting edges can be exchanged by the customer directly on site and ensure maximum accuracy thanks to high-precision insert seats. The focus of current developments is three new solutions that all pursue one goal: continuing to improve companies’ productivity and sustainably reduce costs. 

Innovative one-shot solution for finish machining with high stock allowances

The image shows the tool for the one-shot solution
The combination tool with an ISO leading stage and HPR400 system enables bores to be finished with up to 6 mm of stock allowance in a single working step. The main machining is done by the ISO inserts, while the HPR400 system takes care of the finishing.   ©MAPAL

New HPR400 plus concept for face grooves

The image shows the HPR400-plus tool for machining face grooves.
The HPR400 plus series was specifically developed for machining face grooves. The new tool concept comprises two usable cutting edges. Despite the face groove, the tool and inserts are stable and reliable in machining.   ©MAPAL
The HPR400 plus series was specifically further developed for machining face grooves, with indexable inserts explicitly adapted for bores with special base contours (facing or face groove). The new tool concept with two usable cutting edges improves cost-effectiveness. Despite the face groove, tool and inserts are stable and reliable in machining. Applications can be found in almost all steering knuckles and bearing bores where clearance must be ensured at the bottom of the bore.

HPR400 with PCD inserts for machining stator housings: Innovative solutions for electromobility

The image shows the HPR400 tool for machining stator housing
The HPR400 system is also suitable for finishing the stator bore in electric motors. The technology enables a higher output with lower effort, thus boosting productivity.   ©MAPAL

The HPR400 system is also suitable for finishing the stator bore in electric motors. As there is now greater demand for motors in higher quantities for mid-segment vehicles, there is a growing need for productive solutions. 

In contrast to the blades on a fine boring tool, the HPR400 tools with PCD inserts do not require setting. Due to the higher number of cutting edges, machining speeds are much faster than for a fine boring tool. The technology enables a higher output with lower effort, thus boosting productivity. 
 

Flexible, cost-effective, sustainable and state-of-the-art

The image shows the newly developed solutions of the HPR400 reamer.
With the HPR400 reaming system, companies can increase their productivity and sustainably reduce costs. MAPAL offers three new practical solutions. ©MAPAL  ©MAPAL
With the further developments of HPR400 and HPR400 plus systems for dedicated applications, MAPAL is highlighting its ambition to provide customers from the vehicle construction and fluid power sectors with pioneering solutions for a wide range of challenging machining processes – flexible, cost-effective, sustainable and state-of-the-art.
Portrait Ostertag-Mathias

Contact

Mathias Ostertag Public Relations mathias.ostertag@mapal.com Phone: +49 7361 585 3566

Further articles about reaming & boring