// Quality Products
Slot punching centre as a tandem line
Our slotting centre as a tandem line includes complete automation for all aspects of slotting. This enables efficient and cost-effective, fully automated processing of electrical sheets of any size.
Slotting centres are essential for the production of electrical sheets and stand for precision, flexibility and speed.
We offer customised solutions that take into account the individual needs of our customers and deliver a tailor-made solution.
We have been a reliable partner for our customers for decades. We offer not only high-quality products, but also excellent service and comprehensive advice to ensure that our customers receive the best solutions for their production processes. We work closely with our customers to develop individual solutions and deliver customised production lines that meet the specific requirements of each customer.
HIGH PRODUCTIVITY
HIGH SPEED
MAXIMUM QUALITY
BEST SERVICE
// MADE IN GERMANY
// Advantages are obvious
Slot punching centres as a tandem line
Linear feeder
The sheet metal transport through the entire system is realised by specially developed linear feeders. These provide safe and fast transport and optimum accessibility for the set-up processes.
Tooling
Newly developed tooling enables extremely fast set-up processes. By reducing the number of components, the susceptibility to faults is significantly reduced.
Offset filing
Depending on the size of the finished discs, several stacks can be offset on a pallet.
Sound insulation
The soundproofing elements are integrated into the machine frame and ensure a significant reduction in noise pollution.
Modular design
The punching centre has a modular design and can be expanded according to requirements and functions.
Production of rotor and stator laminations in one work step
In a tandem slot punching centre, one rotor and one stator plate are produced in a single work step.
Variable use in production
Both grooving punches of the punching centre can be operated independently of each other as a “single” grooving centre.
Both parts of the system can also be operated together as a tandem grooving centre.
To enable staggered set-up, the sheets can be passed through directly, or alternatively the pallet can be fed to the second part of the system via a corner transfer unit.
Use of 2 stacking and destacking stations per system section for uninterrupted production
The use of 2 stacking and destacking stations ensures uninterrupted production.
Automatic loading and unloading of pallets
The pallets with the sheet metal stacks are positioned on the chain conveyors and transported onwards through the system accordingly.
Double sheet detection
Measurement of the sheet thickness to prevent the feeding of double sheets.
Sheet metal rolling function integrated in tooling
Sheets are separated from each other by lifting the suction cups locally, thus ensuring that only one sheet is removed from the stack and fed in.
Optical measurement of the electrical sheets
The sheet metal blank is photographed and measured according to the sheet characteristics. The sheet metal is then aligned in the x and y directions, as well as the c‑axis, so that the sheet metal can be precisely inserted into the grooving press.
// Application example
Slot punching centres as a tandem line
Slot cutter as tandem line in U‑shape
In this application example, a grooving centre is designed as a double single grooving press. Production can be carried out independently on each part of the system.
Both parts of the system can be linked together via a transfer point and the system can be used as a tandem system.
This function gives the system operator maximum flexibility in production.
Particular emphasis was placed on output and compactness as well as easy handling by the operator.
The use of 2 stacking and 2 destacking stations ensures uninterrupted production.
Thanks to the U‑shaped arrangement of the system concept, the space requirement can be reduced and can also be integrated into existing production areas.
Slot punching machine set up as a linear tandem line
In this application example, a grooving centre is designed as a double single grooving press. Production can be carried out independently on each part of the system.
Both parts of the system can be linked together via a feeder and the system can be used as a tandem system.
This function gives the system operator maximum flexibility in production.
Particular emphasis was placed on output and compactness as well as easy handling by the operator.
The system parts can be set up at different times by alternatively linking them via a feeder or via the pallet stack, thus reducing downtime and the necessary labour costs.
// Picture gallery
Slot punching centre tandem in use
Here you will find pictures and videos from installation to use by the end customer.
// Hagel Automation
Latest news
Visitor days at Hagel Automation
June 2024| Hagel Automation invites customers to view the latest developments and current projects in calendar weeks 24 and 25. Customers will have the opportunity to experience our state-of-the-art production facilities and the most advanced automation technologies up close. Our experts will be on hand to answer questions and provide detailed insights into our innovative processes.…
Transfer Retrofit USA
June 2024 | We are carrying out a retrofit of a transfer system for a customer in the USA. The planning and design have already been successfully implemented. The system is currently well stowed on the sea route to the USA. The planned installation date is the beginning of July. More news to follow…
Slot punching centre successfully put into operation
June 2024 | We have successfully commissioned the first grooving centre for our customer in Germany. The state-of-the-art system, which is equipped with two single grooving lines connected in series and two 200KN grooving punches, is running at full capacity. The system includes a grooving line that can punch sheets with a diameter of up to 1400mm. Centre 1 can…
Transfer system for a 5 metre press table
DEZ 2023 | We have built a transfer for a customer in the Czech Republic. The transfer system was integrated into a press which has a 5m press table. The control of the transfer was planned, installed and commissioned by us
Slotting centre 1400mm
Dec 2023 | For a customer in Germany, we are currently manufacturing a slotting centre that includes two single slotting machines connected in series. The system is equipped with two 200KN grooving centres. The entire project includes two completely independent slot punching automations Centre 1 can punch a sheet diameter of 1400mm Centre 2 can punch a sheet diameter of 1000mm
Feeder between C‑frame presses
JAN 2022 | Telescopic feeder successfully installed between C‑frame presses in the automotive sector in Germany.
Tandem grooving machine installed
DEC 2021 | We have installed a tandem grooving press for a customer in the Czech Republic, which can be used in single or tandem operation. Two 160KN grooving punches are installed in the system.
Press system with automation
NOV 2021 | We have installed a 300 tonne press for a customer in the automotive sector in Germany. The automation sequence of the system includes: Blank loader, gripper feed & transfer.
// HAIL AUTOMATION
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Employees at the Grünkraut site
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Transfer systems installed
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// FAQ
Questions and answers
Normally, a tool change in a tandem grooving press takes less than 35 minutes, including tooling of the loader setup.
A tandem slot punching centre is required to punch so-called “slots” out of electrical sheets.
Slot punching centres contain both the slot punching machine itself and the entire automation system in a compact and modular design. The tandem system can be used as 2 single systems or as a complete system, in which case the stator and rotor can be punched in a single operation.
Electrical sheets for the production of stators/rotors for electric motors.
Electrical steel sheets are automatically fed into the system and separated, aligned and inserted fully automatically into a slot punching centre. In slot punching centres as a tandem line, the stator and rotor can be processed fully automatically in one system. Both electrical sheets are then stacked with clean edges.
Different modes can be selected, e.g. to place blanks in a twisted position to compensate for rolling inaccuracies.
An electrical steel sheet therefore usually takes 3–5 seconds, depending on the number of strokes and the diameter of the electrical steel sheets.
Compared to a solid tool, grooving centres are cheaper to purchase. The customer can punch different products much more flexibly and fully automatically.
As a rule, the slotting centre is operated as a tandem with 800 – 1200 strokes per minute. In Hagel Automation’s tandem slot punching centre, 720 – 1200 electrical steel sheets can be produced per hour for the stator and rotor, which are stacked with clean edges.
Hagel Automation is a technology leader in the field of slotting centres and offers products at the highest technological level, which are characterised by maximum precision and efficiency.
As a rule, it currently takes 12 – 18 months from order to delivery.
Hagel Automation specialises in the design and construction of slotting centres. Hagel Automation supplies efficient, modern and highly precise production lines in the field of electrical sheet production.
Toolmaking, wind power, generator construction, electric motor construction.
250mm- 1600mm
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// RANGE OF SERVICES