Spira electric press brakes

Our Spira series press brakes are designed for sustainability. They do not use hydraulic oil, reducing environmental pollution and purchase and disposal costs. The absence of oil eliminates variability caused by temperature, ageing, hygroscopicity, etc. The servomotors only operate during the bending phase, so the machine has very low energy consumption when on standby.

Technical Data

All machines have two axes (Y1-Y2) and are equipped with 4-axis backgauge (X-R-Z1-Z2).

Model Spira 35/1350 Spira 50/1650 Spira 70/2050 Spira 70/2500
tonnage [t] 35 50 70 70
length [mm] 1350 1650 2050 2500
distance between side frames [mm] 200 820 1120
throat [mm] 135 200 260
stroke [mm] 180 180 200 200
adapter/bench open height [mm] 410 410 430 430
X axis stroke [mm] 400 400 600 600
R axis stroke [mm] 150 150 150 150
Y1-Y2 axes power [kW] 2×8,6 2×16 2×21 2×21
Average power [kW] 2,3 2,4 2,4 2,7
dimensions L×W×H [mm] 2300×1650×2200 2600×1900×2200 2680×1610×2560 2990×1610×2545
Weight [kg] 4000 5000 6250 6500
crowning no no no mechanical

Components and processes

Servo-drive control ensures high up and down speeds, consistent repeat accuracy and high production efficiency. Their main features include:

  • Controlled speed: Superior servo motors ensure stability and speed.
  • Precision and Durability: Worm screws and C5 steel guides for quality, precision and long life.
  • Y-axis positioning: 0.005 mm accuracy for greater production efficiency
  • Heat treatment: structure heat-treated to 650 °C to reduce internal stresses and prevent long-term cracks.”

Reliability as a matter of principle

Our dual servo approach controls the Y1 (left ram) and Y2 (right ram) axes using powerful 4000 rpm servo motors. This design guarantees high speed, precision and optimised cost management.
Components used:

  • Screws: Techmation (TW-JP) or TSUBAKI NAKASHIMA (JP)
  • Thrust bearings: NSK (JP)
  • Belt: Gates (USA)
  • Machine CNC: STEP (IT)
  • Optical scales: GIVI Misure (IT)
  • Electrical components: Schneider (FR)
  • Linear guides and slides: HIWIN (TW)
  • Backgauge recirculating screws: HIWIN (TW)

Environmental and Energy Benefits

Our Spira series press brakes are designed for sustainability. They use no hydraulic oil, reducing environmental pollution and the costs of purchase and disposal. The absence of oil eliminates variability due to temperature, ageing, hygroscopicity, etc. The servomotors only act during the bending phase, so the machine has very low standby power consumption.

CNC and Interfaceability

Equipped with CNC systems from Step Automation, our press brakes offer power and ease of operation. They can be interfaced with CAM and MES, guaranteeing flexible and optimised management even in the context of Industry 4.0.

The Spira series press brakes are equipped with CNCs from the Italian manufacturer Step Automation: advanced systems capable of handling 3D models and programs combined with an easy-to-use graphical interface.
Many options allow the functionality of the CNC and offline software to be adapted to the customer’s specific needs.
The new generation of ROCK controls offers high performance programming and press brake management. The eye-catching Made in Italy design and the high quality of all construction details guarantee prestigious performance and long product life.

Ready for Industry 4.0 thanks to functions for production management, maintenance and remote programming and supervision.

LazerSafe safety system

The LazerSafe LZS-2 safety system is an advanced solution for protecting press brake operators. This system uses a laser light ‘barrier’ that surrounds the danger zone of the punch, detecting any obstacles. If the operator or an object enters this protected zone, the machine stops automatically.

The most important technical parameters of the LazerSafe LZS-2 safety system, which define its effectiveness and application, include:

  • Detection resolution: LZS-2 is capable of detecting small objects, with a minimum resolution of approximately 4 mm. This means that it is very sensitive to any obstacle, ensuring a high level of safety.
  • Response speed: The system has a very fast response time, usually less than 1 millisecond. This speed is essential for stopping the press brake almost instantly as soon as an obstacle is detected.
  • Laser type: It uses a class 1M laser, which is considered safe under normal conditions of use, reducing the risk to the operator’s eyes.
  • Advanced safety features: LZS-2 integrates features such as continuous monitoring of the stopping distance, the ability to operate in ‘Tray/Box’ mode for complex bends, and automatic muting point management (the point at which the laser is temporarily deactivated to allow the operator to approach the workpiece).
  • Compatibility: It is designed to be integrated with different types of press brakes, including those with ‘V’ and non-standard tools.

Proactive maintenance

Promecam press brakes are equipped with the WATT maintenance and consumption control platform: a proprietary system that constantly monitors the operation of key components. This allows us to monitor all vital machine parameters and detect many anomalies, even the most imperceptible. We can then intervene to resolve the problem before it causes a loss of quality or machine downtime. WATT technologies also allow us to detect machine misuse such as overloads, shocks, collisions and other damage: protecting your investment has never been easier.

The WATT platform, via an easy-to-read dashboard, provides all the data on machine utilisation rate, consumption efficiency, and energy cost for any time interval. By interfacing with the MES you can know the real cost of your products precisely.

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