Gentilini Tullio

Since 1967

Gentilini Tullio

Since 1967

OFFICINA RETTIFICHE
GENTILINI TULLIO


The company was established in 1967 by Tullio Gentilini and has operated in the field of mechanical grindings on behalf of third parties for over fifty years.

We present ourselves to the client not only as a company that can carry out the work but also as a partner whose know-how and structure can help it solve a problem, or optimally develop its project. The client can rely on us for full technical support and consulting. The service we offer the customer goes beyond mere machining because we provide support during both the technical and the quality stages.

Dedicated technical consultancy and guaranteed delivery times is the promise we make to our clients.

The company is historically specialised in the following activities:

  • STRAIGHTENING: We perform precision straightening to solve problems of deformation that the components may have been subject to during the previous machining stages. Straightening is generally carried out post-treatment and has the aim of restoring the straightness of various types of pieces such as shaft components, axle shafts, pins, spindles and others, within a range and at the control points agreed on with the client. We have automatic crack detection machines that use sensors to identify the points where the piece has deviated from the longitudinal axis. In this way, we are able to immediately identify any past deformations already at the time of entry of your piece. We have both manual and automatic straighteners and we can straighten components with a diameter and length of 1 metre max diameter 50.
    • Advantages of straightening: the possibility of performing cold straightening both before and after the heat treatment with very narrow tolerances has the advantage of performing the subsequent machining stages in a more simple way, in some cases also eliminating vibrations caused by the distortion. This is necessary for the machining operations to be carried out keeping under control the initiation of any cracks in the material or breakages.
    • This operation is carried during the process stage, eliminating the need for subsequent control and destructive tests.
  • INTERNAL AND EXTERNAL GRINDING: We are specialised in internal and external grinding. Grinding is a precision mechanical operation that entails the use of a grinding wheel to eliminate the surface material of the piece. Using CNC and traditional machines, we are able to adjust steel and hard metal pieces. We perform grinding on shafts, pinions, gears, axle shafts and other mechanical components. We respect the tolerances requested and control the pieces using sophisticated measuring tools.
    The most modern technologies, the long-standing experience of our operators and continuous training allow us to meet requests of clients operating in a wide range of sectors. We can grind pieces from 1 metre in length through to a diameter of 360.
  • THREAD GRINDING: We grind threads on shafts, pinions, gears, axle shafts and other pieces. This type of grinding is highly specific and precise and for this reason it requires experience and skill. It is fundamental to use specific abrasive tools. We have avant-garde machines and tools that can meet the requests of our clients and the different types of product. The processes are managed using CNC machines that comply in full with the highest market standards.

We like to guarantee our clients flexibility and speed to do what we have to do in the shortest time possible, offering full customisation of each piece.

OFFICINA RETTIFICHE
GENTILINI TULLIO


The company was established in 1967 by Tullio Gentilini and has operated in the field of mechanical grindings on behalf of third parties for over fifty years.

We present ourselves to the client not only as a company that can carry out the work but also as a partner whose know-how and structure can help it solve a problem, or optimally develop its project. The client can rely on us for full technical support and consulting. The service we offer the customer goes beyond mere machining because we provide support during both the technical and the quality stages.

Dedicated technical consultancy and guaranteed delivery times is the promise we make to our clients.

The company is historically specialised in the following activities:

  • STRAIGHTENING: We perform precision straightening to solve problems of deformation that the components may have been subject to during the previous machining stages. Straightening is generally carried out post-treatment and has the aim of restoring the straightness of various types of pieces such as shaft components, axle shafts, pins, spindles and others, within a range and at the control points agreed on with the client. We have automatic crack detection machines that use sensors to identify the points where the piece has deviated from the longitudinal axis. In this way, we are able to immediately identify any past deformations already at the time of entry of your piece. We have both manual and automatic straighteners and we can straighten components with a diameter and length of 1 metre max diameter 50.
    • Advantages of straightening: the possibility of performing cold straightening both before and after the heat treatment with very narrow tolerances has the advantage of performing the subsequent machining stages in a more simple way, in some cases also eliminating vibrations caused by the distortion. This is necessary for the machining operations to be carried out keeping under control the initiation of any cracks in the material or breakages.
    • This operation is carried during the process stage, eliminating the need for subsequent control and destructive tests.
  • INTERNAL AND EXTERNAL GRINDING: We are specialised in internal and external grinding. Grinding is a precision mechanical operation that entails the use of a grinding wheel to eliminate the surface material of the piece. Using CNC and traditional machines, we are able to adjust steel and hard metal pieces. We perform grinding on shafts, pinions, gears, axle shafts and other mechanical components. We respect the tolerances requested and control the pieces using sophisticated measuring tools.
    The most modern technologies, the long-standing experience of our operators and continuous training allow us to meet requests of clients operating in a wide range of sectors. We can grind pieces from 1 metre in length through to a diameter of 360.
  • THREAD GRINDING: We grind threads on shafts, pinions, gears, axle shafts and other pieces. This type of grinding is highly specific and precise and for this reason it requires experience and skill. It is fundamental to use specific abrasive tools. We have avant-garde machines and tools that can meet the requests of our clients and the different types of product. The processes are managed using CNC machines that comply in full with the highest market standards.

We like to guarantee our clients flexibility and speed to do what we have to do in the shortest time possible, offering full customisation of each piece.

OUR MACHINES

  • Tacchella CNC "CROSS" - center height 160x1000 mm wheel diameter 508x100 mm with the possibility of working with straight or 30 ° wheel
  • Tacchella CNC "GRINDIFLEX LINE" - center height 160x1000 mm - wheel diameter 508x100 mm with the possibility of working with straight or 30 ° wheel
  • Morara CNC ED 1/1000 - center height 160x1000 mm wheel diameter 508x100 mm with the possibility of working with straight or 30 ° wheel
  • Tacchella CNC "CROSS" 160 - center height 160x1000 mm wheel diameter 610x100 mm with the possibility of working with straight or 26 ° wheel.
  • Tacchella CNC "ELEKTRA EVO" - center height 160x1000 mm - grinding wheel diameter 508x100 mm with the possibility of working with 2 grinding wheels from -30 ° to 210 ° and internal spindle for machining holes with or without rest
  • LIZZINI MINERAL EKO CNC with linear motors - center height 180x60 mm - grinding wheel diameter 610x200 mm with the possibility of working with 2 grinding wheels from -30 ° to 210 ° and diamond roller for threads, robotized piece change system with portal
  • Morara CN with gantry magazine center distance 400x160

  • Tacchella 412P - center height 130x600 mm
    wheel diameter 400x100 mm equipped with copy for wheel shaping
  • Tacchella 612UA - center height 130x1000 mm
    wheel diameter 350x100 mm equipped with linear diamond
  • RIBON MODULE 1000 - center height 180x1000 mm
    wheel diameter 400x100 mm
  • ZANETTI RA 1000 - center height 160x1000 mm
    wheel diameter 400x100 mm
  • ZANETTI RA 1000 - center height 160x1000 mm
    wheel diameter 400x140 mm
  • TACCHELLA M50018UA - center height 160x600 mm
    wheel diameter 450x140 mm equipped with copy for wheel shaping

  • MORARA - center height 120x600 mm - wheel diameter 300x40 mm
  • ZANETTI RU600 - center height 130x600 mm - wheel diameter 350x100 mm
  • ZANETTI RU1000 - center height 160x600 mm - wheel diameter 400x100 mm
  • RIBON 600 - center height 160x600 mm - wheel diameter 350x100 mm

THREAD GRINDING MACHINES

  • AVION 1000 - center height 120x1000 mm - wheel diameter 300x32 mm equipped with a wide range of steps in mm and inches
  • REISHAUER - center height 100x400 mm - wheel diameter 400x32 mm equipped with a wide range of steps in mm and inches
  • LINDER - center height 100x600 mm - wheel diameter 350x32 mm equipped with a wide range of steps in mm and inches
  • LIZZINI MINERAL EKO CNC with linear motors - center height 180x60 mm - grinding wheel diameter 610x200 mm with the possibility of working with 2 grinding wheels from -30 ° to 210 ° and diamond roller for threads, robotized piece change system with portal
  • REISHAUER - center height 100x1000 mm - wheel diameter 350X32 mm; equipped with a wide range of steps in mm and inches

  • MORARA RIA / S 1100 Automatic and equipped with PLC, equipped with a pusher with pneumatic self-centering cup wheel and steady rest for grinding the hole in the head of shafts up to a length of 900 mm
  • Tacchella CNC "ELEKTRA EVO" - center height 160x1000 mm - grinding wheel diameter 508x100 mm with the possibility of working with 2 grinding wheels from -30 ° to 210 ° and internal spindle for machining holes with or without rest

  • ROCKERS equipped for small trees
  • HYDRAULIC PRESS "GALDABINI" TYPE: 25 tons for straightening shafts up to mm. 1000.
  • "GALDABINI" TYPE CNC PRESS: 25 tons for straightening shafts up to mm. 1000 with crack detection software.

TEST ROOM

We boast a state-of-the-art Quality Center that carries out checks and measurements with the most modern measuring machines in the industry. This ensures that each component is accurate and compliant with the measurements required by the customer.

The company carries out its business in a 2000 m² warehouse of which:

  • 1550 m² are dedicated to the processing department;
  • 230 m² in the warehouse
  • 120 m² to the offices
  • 100 m² to the service area

We also have a fully equipped testing room complete with:

  • centesimal and thousandth micrometers from 0 to 175 mm
  • certified control pads for various tolerances from 2 to 150
  • series of certified primary parallel flat blocks
  • boxes of secondary parallel flat blocks
  • granite top 600 x 600 mm
  • column "elios" for heights
  • nikon “digimicro stand ms 3g” column for flat and round controls

  • Mitutoyo HDS roughness tester HDS
  • profile projector of the "nikon" series v-12b, equipped with a table with millesimal displacement and relative "quadra chek" calculator
  • 1200 x 800 granite top
  • 2d digital altimeter of the “mitutoyo” linear height 600
  • base and counter tips for general checks on the centers
  • roundness tester / profilometer / roughness tester tahylor hobson tr5xx with column of 900 (self-leveling and self-learning programming with special table for crankshaft control)
  • n.1 three-dimensional wenzel smart cmm point comparison with 3d mathematics IGES format
    - table dimensions x 500 y 450 z 400
    - measurement uncertainty
    - mpe = 3.5 + l / 300 micron
    - mpe p = 3.5 micron
  • n ° 1 optical machine tesa scan 52
    - piece length max 350 mm and ø 52 max with rotary axis for dynamic checks
    - measurement uncertainty ø u95 = 1.6 + 1.5 * d / 1000 micron (with d in millimeters)
    - lengths u95 = 3 + 1.5 * l / 1000 microns (with l in millimeters)

OUR MACHINES

NUMERIC CONTROL MACHINES FOR EXTERIORS

  • Tacchella CNC "CROSS" - center height 160x1000 mm wheel diameter 508x100 mm with the possibility of working with straight or 30 ° wheel
  • Tacchella CNC "GRINDIFLEX LINE" - center height 160x1000 mm - wheel diameter 508x100 mm with the possibility of working with straight or 30 ° wheel
  • Morara CNC ED 1/1000 - center height 160x1000 mm wheel diameter 508x100 mm with the possibility of working with straight or 30 ° wheel
  • Tacchella CNC "CROSS" 160 - center height 160x1000 mm wheel diameter 610x100 mm with the possibility of working with straight or 26 ° wheel.
  • Tacchella CNC "ELEKTRA EVO" - center height 160x1000 mm - grinding wheel diameter 508x100 mm with the possibility of working with 2 grinding wheels from -30 ° to 210 ° and internal spindle for machining holes with or without rest
  • LIZZINI MINERAL EKO CNC with linear motors - center height 180x60 mm - grinding wheel diameter 610x200 mm with the possibility of working with 2 grinding wheels from -30 ° to 210 ° and diamond roller for threads, robotized piece change system with portal
  • Morara CN with gantry magazine center distance 400x160

AUTOMATIC MACHINES FOR EXTERIORS

  • Tacchella 412P - center height 130x600 mm
    wheel diameter 400x100 mm equipped with copy for wheel shaping
  • Tacchella 612UA - center height 130x1000 mm
    wheel diameter 350x100 mm equipped with linear diamond
  • RIBON MODULE 1000 - center height 180x1000 mm
    wheel diameter 400x100 mm
  • ZANETTI RA 1000 - center height 160x1000 mm
    wheel diameter 400x100 mm
  • ZANETTI RA 1000 - center height 160x1000 mm
    wheel diameter 400x140 mm
  • TACCHELLA M50018UA - center height 160x600 mm
    wheel diameter 450x140 mm equipped with copy for wheel shaping

TRADITIONAL MACHINES FOR EXTERNAL GRINDING

  • MORARA - center height 120x600 mm - wheel diameter 300x40 mm
  • ZANETTI RU600 - center height 130x600 mm - wheel diameter 350x100 mm
  • ZANETTI RU1000 - center height 160x600 mm - wheel diameter 400x100 mm
  • RIBON 600 - center height 160x600 mm - wheel diameter 350x100 mm

THREAD GRINDING MACHINES

THREAD GRINDING MACHINES

  • AVION 1000 - center height 120x1000 mm - wheel diameter 300x32 mm equipped with a wide range of steps in mm and inches
  • REISHAUER - center height 100x400 mm - wheel diameter 400x32 mm equipped with a wide range of steps in mm and inches
  • LINDER - center height 100x600 mm - wheel diameter 350x32 mm equipped with a wide range of steps in mm and inches
  • LIZZINI MINERAL EKO CNC with linear motors - center height 180x60 mm - grinding wheel diameter 610x200 mm with the possibility of working with 2 grinding wheels from -30 ° to 210 ° and diamond roller for threads, robotized piece change system with portal
  • REISHAUER - center height 100x1000 mm - wheel diameter 350X32 mm; equipped with a wide range of steps in mm and inches

INDOOR MACHINES FOR CRANKSHAFTS

  • MORARA RIA / S 1100 Automatic and equipped with PLC, equipped with a pusher with pneumatic self-centering cup wheel and steady rest for grinding the hole in the head of shafts up to a length of 900 mm
  • Tacchella CNC "ELEKTRA EVO" - center height 160x1000 mm - grinding wheel diameter 508x100 mm with the possibility of working with 2 grinding wheels from -30 ° to 210 ° and internal spindle for machining holes with or without rest

STRAIGHTENING MACHINES

  • ROCKERS equipped for small trees
  • HYDRAULIC PRESS "GALDABINI" TYPE: 25 tons for straightening shafts up to mm. 1000.
  • "GALDABINI" TYPE CNC PRESS: 25 tons for straightening shafts up to mm. 1000 with crack detection software.

TEST ROOM

We boast a state-of-the-art Quality Center that carries out checks and measurements with the most modern measuring machines in the industry. This ensures that each component is accurate and compliant with the measurements required by the customer.

The company carries out its business in a 2000 m² warehouse of which:

  • 1550 m² are dedicated to the processing department;
  • 230 m² in the warehouse
  • 120 m² to the offices
  • 100 m² to the service area

We also have a fully equipped testing room complete with:

  • centesimal and thousandth micrometers from 0 to 175 mm
  • certified control pads for various tolerances from 2 to 150
  • series of certified primary parallel flat blocks
  • boxes of secondary parallel flat blocks
  • granite top 600 x 600 mm
  • column "elios" for heights
  • nikon “digimicro stand ms 3g” column for flat and round controls

  • Mitutoyo HDS roughness tester HDS
  • profile projector of the "nikon" series v-12b, equipped with a table with millesimal displacement and relative "quadra chek" calculator
  • 1200 x 800 granite top
  • 2d digital altimeter of the “mitutoyo” linear height 600
  • base and counter tips for general checks on the centers
  • roundness tester / profilometer / roughness tester tahylor hobson tr5xx with column of 900 (self-leveling and self-learning programming with special table for crankshaft control)
  • n.1 three-dimensional wenzel smart cmm point comparison with 3d mathematics IGES format
    - table dimensions x 500 y 450 z 400
    - measurement uncertainty
    - mpe = 3.5 + l / 300 micron
    - mpe p = 3.5 micron
  • n ° 1 optical machine tesa scan 52
    - piece length max 350 mm and ø 52 max with rotary axis for dynamic checks
    - measurement uncertainty ø u95 = 1.6 + 1.5 * d / 1000 micron (with d in millimeters)
    - lengths u95 = 3 + 1.5 * l / 1000 microns (with l in millimeters)

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