• The picture shows an overview of the reaming and fine boring programme from MAPAL.
  • A replaceable head reamer from the MAPAL HPR range in use.
  • MAPAL reliably machines the stator bores of electric motors with a highly specialized fine boring tool.

Competence Reaming and Fine Boring

Precision tools for reaming and fine boring of bores are the core competence of MAPAL. The company is continuing to write its success story related to this area that started with the "original reamer" in 1954. 
Thanks to decades of experiences and continuous further development and optimisation, MAPAL can offer its customers the optimum tooling solution, perfectly tailored to the complexity of the machining operation and the precision requirements.
Next to tailor-made custom solutions, MAPAL offers a broad standard programme of tools for reaming and fine boring.​​​​​​​
  • L'immagine mostra un utensile speciale a più punte per la foratura fine di MAPAL direttamente sul componente.

    Fino a diametro 315 mm per qualsiasi materiale

    Unitamente al diametro e alla tolleranza di foratura richiesta, il materiale è uno dei criteri di selezione principali per la scelta dell'alesatore più adatto. L'assortimento MAPAL comprende, oltre ai canonici utensili per la lavorazione di acciaio, acciaio inox, ghisa e alluminio, anche soluzioni specifiche per l'alesatura sicura e conveniente di titanio, superleghe, plastiche e materiali compositi.

  • Una biella aperta viene utilizzata come esempio per mostrare come un alesatore MAPAL lavora l'occhio grande.

    Rivestimenti ad alte prestazioni

    Per garantire la lunga durata dell'utensile e risultati di lavorazione ottimali, il rivestimento dei taglienti è un fattore decisivo. MAPAL offre una vasta scelta di substrati e di rivestimenti, specifici per i vari compiti di lavorazione, sempre all'avanguardia grazie anche all'impianto di applicazione del rivestimento proprio dell'azienda.

  • Un alesatore MAPAL poco prima di forare una pinza freno.

    Rigenerazione in qualità originale

    Utensili di alesatura e taglienti completamente rinnovati, che raggiungono una potenza di truciolatura pari anche al 100% rispetto agli utensili nuovi, rappresentano un fattore determinate nell'ambito dei costi di produzione. Per questo motivo MAPAL offre un servizio di rigenerazione utensili, che comprende la riaffilatura e l'applicazione di un nuovo rivestimento, in qualità uguale a quella del produttore. Il servizio è particolarmente completo, in quanto MAPAL si incarica ad esempio, su richiesta, del ritiro e della fornitura degli utensili direttamente sul posto, e garantisce la qualità originale standard in ogni parte del mondo.

  • State-of-the-art manufacturing facilities form the basis of the high manufacturing precision at MAPAL.

    Latest production equipment

    3D design and simulations form the basis for the manufacture of MAPAL tools. The data are transferred via interfaces to the related machining centre that forms part of the state-of-art range of machinery available on site. In this way MAPAL reaming tools are produced to the highest quality requirements with monitoring and control by experienced staff. 
    Precision and effectiveness are guaranteed.

  • A selection of special tools for reaming and fine boring from MAPAL.

    Custom solutions

    Special machining tasks require special tools. For this reason MAPAL offers custom reaming tools individually tailored to the requirements of the customer. 
    Requirements are met optimally with special lead geometry and coatings as well as multi-stepped tools. 
    Combination solutions with other tool technologies from MAPAL can further increase the productivity and reduce non-productive times.

Tools with guide pads

A selection of reamers with indexable inserts and guide pads from MAPAL.

Highest accuracies with the MAPAL principle

Tools with guide pads have high accuracy and performance due to 
  • the direct guiding in the bore using guide pads and 
  • the high quality of the precision-ground indexable inserts.
Particularly on the fine machining of bores, the requirements are exceptionally high on the cutting material, coating, cutting edge geometry and the quality of the grinding. Due to highly sensitive and accurate adjusting systems, the required diameter is produced to the μm from the first part. 
​​​​​​​The setting effort is significantly reduced by the EasyAdjust-System from MAPAL, as it is only necessary to set the diameter of the tools.

High-performance reamers with cylindrical shank

A selection of high-performance reamers with cylindrical shank from MAPAL.

The innovative monoblock tools allow practically all materials to be machined. Even difficult to machine workpiece materials can be machined due to the ideal combination of geometry, cutting material and coating with high performance.
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MAPAL high-performance reamers with cylindrical shank are available in two different designs:
  • As tipped design with a tool body and separately attached blades made of carbide, cermet, PcBN and PCD;
  • As a monolithic design made of solid carbide, HSS and solid cermet with cutting edges that are machined from the tool body material.

Replaceable head reamers

MAPAL replaceable head reamers for exact concentricity and changing accuracies and simple handling.

MAPAL offers replaceable head reamers with different head systems. They impress with exact radial run-out and changeover accuracy, and with safe and simple handling, particularly during assembly and dismantling. 
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The standard programme covers versions for through bores and blind bores as well as a broad choice of cutting materials.

Reaming solutions for large diameters

Solutions for reaming large diameters from MAPAL.

Especially for machining from a diameter of 40 mm, a programme of high-performance reamers with individual configuration options and HSK or module shank is available. 
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From the simple cutting ring to high-performance tools with straightforward insert change on site – for every application MAPAL offers a suitable solution for the high-accuracy and cost-effective machining of almost all workpiece materials.

Floating Holders

MAPAL has an extensive portfolio of floating holders for reaming operations on lathes.

For reaming operations on lathes

During fine bore machining, the alignment of the pilot bore with the tool axis is a prerequisite for the correct function of the reamer. On the usage of reamers on lathes it is often necessary to compensate for axial errors between the tool adapter and the bore to be machined. This error can be corrected either by aligning the tool on the machine or using a floating holder. A floating holder is particularly useful if the offset changes continuously due to the thermal expansion of the machine or at different positions when rotating the revolver.
MAPAL floating holders guarantee optimal results during machining at high speeds and feeds.

Custom solutions for reaming and fine boring

  • Special solutions with guide pad technology from MAPAL.
  • Special solutions with the EasyAdjust system from MAPAL.
  • Special solutions in the field of multi-bladed reamers from MAPAL.
  • Special solutions with HPR technology from MAPAL.
  • Special reaming tools for machining large diameters from MAPAL.