Machines and Systems for Electric Motor Production

We power solutions: at its plant in Pianezza (Turin) GROB designs and builds machines and assembly lines for electric motor manufacturing. Our product portfolio ranges from semi-automatic machines to fully automated systems. Thanks to the experience gained in over thirty years of activity in this sector and thanks to its global presence, GROB guarantees excellence in technology and service support worldwide.

GROB creates highly innovative automation systems that combine technical expertise, dynamics and creativity. These distinctive features give rise to flexible solutions, capable of responding to the most specific needs through which the company never ceases to contribute to a more conscious use of resources and to a more sustainable future.

Application areas for our products

E-Mobility

Light E-Mobility

Domotics

Industrial

Alternator

Our technologies

Distributed Winding Stator

Linear Winding Stator

Permanent Magnets Rotor

Wound Rotor

Impregnation

Motor Assembly

Machines for Stator Winding

Distributed Winding

Slot insulation machine

Insertion of insulation into stator slots.

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Slot insulation machine

Machine features:

Easy to use
Programmable lenght of the insulation
Full height control, width control, cuff height control

Winding and inserting machine

Automatic winding and inserting machine for highly efficient stators for induction motors.

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Winding and inserting machine

Machine features:

Highly efficient coil insertion with three independent slides
Automatic adaptation to different heights of laminated cores
Cuff support to protect slot insulation paper
Automatic form opening and centering
Anti-twist system (option)
Lead twist (option)
HMI driven tool change

Intermediate forming machine

Forming the coil in order to create room for the following insertion step.

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Intermediate forming machine

Machine features:

Easy to use
Fully electric movement
Fully programmable enlargement parameters
Cuff support to protect slot insulation paper and wire

Final forming machine

Pressing of the winding heads in order to achieve the requested geometry.

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Final forming machine

Machine features:

Easy to use
Fully electric movement
Cuff support to protect slot insulation paper and wire

Lacing machine

Lacing of the winding heads with diamond stitch.

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Lacing machine

Machine features:

Easy to use
Fully electric movement
Simultaneous lacing of upper and lower winding head
Different lacing patterns possible for upper and lower winding head
Automatic knotting
Cutting of lacing cord with blade or heat

Core skewing and welding machine

Skewing and welding of laminated cores.

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Core skewing and welding machine

Machine features:

Programmable skewing angle
Plasma/TIG/laser welding
Fully electric movement
Programmable pressing force

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Machines for Alternator Stator Winding

Template-based Wave Winding

Template-based wave winding machine

Automatic winding and inserting machine for highly efficient stators for induction alternators.

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Template-based wave winding machine

Machine features:

High slot fill factor for highly efficient alternators
Winding, inserting and intermediate forming – all in one

Machines for Stator Winding

Linear Winding

Linear winding machine

Linear winding of the wire onto a rotating coil body.

Linear winding machine

Machine Features:

Winding of axial flux segments or segmented stators
High precision orthocyclic winding at high winding speed
1 up to 4 simultaneously working spindles
Wide range of wire diameters
High performance wire tensioning unit
Fully and easiliy programmable
Quick tooling change

Machines for Rotor Assembly

Permanent Magnet Rotor/Wound Rotor

Rotor line

GROB provides the full manufacturing process for permanent magnet rotors at different levels of automation.

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Rotor line

Machine features:

Glue application via robot
Magnet insertion via robot
High flexibility for different rotor shapes
Rotor shaft fitting with control of force and position
Visualization system for shaft and rotor indexing
Degree of automation from low to high

Rotor needle winding machine

Needle winding machine for rotor coils.

Rotor needle winding machine

Machine features:

Orthocyclic winding of automotive rotors
Special design of the needle to lower the stress on the wire
Reduced wire tension due to needle rotation
Full control of wire positioning
Orthocyclic winding at high speed
Easily programmable and user-friendly interface

Impregnation Lines

Trickling cell

The trickling cell developed by GROB consists of a flexible combination of trickling, gelling and robot stations and enables a rotating transfer between the trickling and gelling process via a specially developed robot gripper.

Trickling cell

Machine features:

High flexibility and scalability
Wide range of product dimensions can be processed with same equipment
Quick tool change
Fully automatic solution

Automation for Motor Assembly

E-motor assembly lines

GROB offers solutions for the complete assembly of e-motors: from bearing installation and final screwing to terminal box installation.

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Our Services

Post-punching process

GROB supports stator and rotor stack producers integrating all the processes to get the finalized laminated core. In particular, GROB offers solutions for transportation, indexing, checking of weight and height, adding and removing laminations, induction heating, ID checking, laser marking, cooling, dry-cleaning and packing.

Advantages:

Individually customizable processes
Processes designed and built by partners with large expertise in the automotive sector

Turn-Key Solutions

GROB provides turn-key solutions for all stages of the electric motor manufacturing process. The experience gained in more than thirty years in this field has made GROB a solid and reliable partner in all phases of the production process, allowing its customers to save time and resources.

Advantages:

With everything from a single source, a seamless manufacturing process is guaranteed
High-quality customer support carried out by experienced professionals

Customization

All our machines can be customized according to specific requests. Thanks to a experienced team of technical experts, GROB offers the best solutions in the field of electric motors.

Advantages:

High flexibility and adaptability to specific customer requirements
In-depth know-how in design and engineering
Analysis and support of the customer during each phase of project development

Preventive Maintenance and Sustainability

Maximum efficiency with low energy requirements: with the software GIT Connect developed by GROB, the life cycle of a machine can be extended and its environmental impact can be reduced without limiting production efficiency.

Advantages:

Custom machine design based on your sustainability needs
Data analysis including machine performance and productivity monitoring
Remote connection for troubleshooting
Pneumatic and electric equipment in order to optimize air consumption

Simultaneous Engineering and Prototype Production

GROB has a large technical expertise and is permanently focused on the current market demands. Our simultaneous engineering service dedicated to the development of the industrial process of the final product allows customers a rapid evaluation of the process and final product itself with significant savings in time and money.

Advantages:

Expert knowledge regarding feasibility studies and prototype production
Preventive optimization of specific equipment
Service tailored to your requirements and needs

Service and After Sales

The continuity of your production is our priority, your satisfaction our ultimate goal! GROB offers a complete and reliable after-sales service, available to our customers all over the world.

Advantages: