Hommel+Keller: Roller Burnishing Tools

High Process Reliability with Short Turnaround Time

Roller Burnishing Tools from Hommel+Keller Präzisionswerkzeuge GmbH, Germany are the ideal solution for users who require a very smooth and simultaneously hardened surface – in the shortest possible machining time. With roughness depths below Rz < 2.0 μm, roller burnishing tools offer an economical alternative to conventional fine machining methods. Thanks to their compact design, the roller burnishing tools can be used directly in the existing machining center – without special machines and without additional clamping.

 

Features & Benefits :

  • Spring force up to 450 N, spring travel 2 mm
  • Three roller types: R0.4 | R0.6 | R1.0 mm
  • Strengthening of the surface layer -> higher fatigue strength
  • Very low investment, fast amortization

Please contact us for more information on Roller Burning Tools, Knurling Tools and Marking Tools from Hommel+Keller Präzisionswerkzeuge GmbH, Germany.

 

KNOLL: Scraper Belt Conveyor K

KNOLL K Type Scraper Belt Conveyors are used for transporting metal chips and small parts.  Widely used in many machine tool systems all over the world offering benefits that serve shopfloors day in and day out with trouble free operation.  Some of the common uses and benefits of KNOLL K Type conveyors are:

  • Use on individual and interlinked machine tools
  • Central use for waste disposal from machine groups and entire production areas
  • Suitable for short chips (e.g. steel, brass, aluminum, copper, cast)
  • Suitable for wet and dry processing

Properties

 Benefits
Safety slide coupling Effective overload protection
Extraction of the cooling lubricant from the trough High delivery rate possible
Edge filter in the trough in front of the suction line Good chip pre-separation
Simple layout Easy to service
Customer-specific design Best-possible addressing of requirements

 

Main Function

  • Collection of the chips/parts
  • Transporting of the chips/parts to the discharge point on the container bottom

Additionally for wet processing

  • Collecting of the cooling lubricant
  • Separating of chips and cooling lubricant
  • Buffering of cooling lubricant
  • Transporting of the cooling lubricant for processing, return pumping station or machine

Continuous Scraper Belt

  • 2 roller chain strands that are connected to scraper bars
  • Positively-driven chain circulation
  • Tensioning through easy adjustment of the bearing retainers

Combination Possibilities
For other requirements, on request we can combine the conveyor with

  • Filter systems for cleaning the cooling lubricant and supplying the machine tool
  • Chip reducers for generating pumpable or absorbent chips
  • Return pumping stations for transporting chips and cooling lubricant to the central plant
  • Extraction stations for transport of chips to the central plant

Please contact us for more information on KNOLL K Type Conveyors for your chip handling requirements.

 

HORN: Supermini System with HSK Interface

Horn is expanding the Supermini tool system with new holder variants. The holder range is specifically aimed at use in modern mill-turn centers. The tool manufacturer is thus reducing the number of interfaces between the insert and spindle compared to conventional chucks. This enables greater precision and higher process reliability. Horn offers the holder system with various machine interfaces, including: HSK-T63, HSK-E40 for Willemin-Macodel, HSK-A40 for Bumotec and HSK-T40 for all other multitasking machines. In all versions, the Supermini insert is located and removed using a face clamping and lifting system. Clamping is achieved not via the lateral surface of the tool, but via a wedge on the end face. This raises the force with which the insert is held, resulting in high rigidity of the overall system.

Boring, profile turning, internal grooving, threading, chamfering, axial grooving, drilling and slotting. The Supermini tool system can be adapted and used for numerous machining operations. The solid carbide insert is for machining bores from 0.2 mm to approximately 10 mm in diameter. Horn developed the tool blank as a teardrop shape, enabling precise contact surfaces in the tool holder. Furthermore, the shape prevents the insert from twisting, leading to a consistently precise tool center height. With long tool overhangs, it reduces deflection and minimizes vibration during the turning process. Depending on the application and the diameter to be machined, Horn offers the insert in three different sizes (types 105, 109 and 110). All variants allow for internal coolant supply directly to the cutting zone. The Horn tool portfolio contains approximately 2,500 different standard variants of the Supermini. In addition, Horn has solved users’ problems with countless customized solutions.

Hommel+Keller: Precise Marking on Any Workpiece Geometry

zeus Marking Tools in Action

Starting November 2025, we are pleased to offer solutions from a global leader for Marking Tools from Hommel+Keller Präzisionswerkzeuge GmbH, Germany.  Discover the versatile applications of zeus Marking Tools from Hommel+Keller!  In this video, we demonstrate how to achieve precise marking even on complex geometries:

  • Conical surfaces
  • Convex surfaces
  • Flat surfaces
  • Grooves
  • Cylindrical surfaces – axial & radial

Thanks to the robust and flexible zeus technology, workpieces can be marked efficiently, permanently, and with high precision – even under demanding machining conditions.

Please contact for more information on Marking Solutions from Hommel+Keller Präzisionswerkzeuge GmbH.

 

HORN: New Chip Breaker for the 274 Tool System

Superior Chip Control during Grooving and Parting off

Paul Horn GmbH has introduced a new chip breaker geometry for the 274 tool system especially for grooving and parting off on sliding-head lathes. The sintered chip breaker geometry 1A optimizes chip control during turning, ensuring a high level of process reliability. The universal geometry is suitable for machining various materials. The indexable insert with two cutting edges is available in three cutting widths of 1 mm, 1.5 mm or 2 mm. Maximum grooving depth is between 3 and 6 mm. The insert is available in TH35 and IG35 grades. An extensive range of holders is available for adaptation to different types of lathe.

When machining turned parts of small diameter, the centre height of the tool must be precise. Even small deviations in the centre height have a negative effect on the quality of the workpiece when machining very small parts. Ideally, the machine operator should be able to index the insert without having to readjust the centre height. With System 274, Horn offers excellent repeatability of less than 0.02 mm when turning the double-edged insert. This is made possible by precise peripheral grinding of the insert in conjunction with the stable insert seat.