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Sempre 15 and 30 – Compact Cold Glue Application Head – Flexible in Different Design Variants

The electrically driven Sempre 15 and Sempre 30 jetting heads are designed for contact-free application of medium-viscosity dispersion adhesives. The durable application heads increase efficiency and productivity with their quick start up through the CleanStart function. The Sempre 15 and Sempre 30 cold glue heads excel with their small installation dimensions and ensure improved product quality thanks to a precise adhesive application with clean cut-off behavior. Additionally, they can be flexibly adapted to customer requirements based on their design variants.

The newest generation of “Sempre” cold glue heads stands for “Speed, Electro, Mini, Precise.” The Sempre 15 / 30 jetting head is suitable for dot, bead, and continuous application of dispersion adhesives. Thanks to their compact design, they can be easily and flexibly integrated, also for systems with limited space. With their precise adhesive application and high switching frequencies, they are ideal for applications in the graphical and converting industry.

Advantages of the Sempre 15 and 30 Cold Glue Heads – At a Glance

  • Increased efficiency and productivity through fast start up and minimum maintenance effort
  • Improved product quality through precise and clean adhesive application at high machine speeds
  • Flexible integration thanks to a compact and narrow design
  • Precise fine adjustment of the adhesive amount through integrate stroke adjustment
  • Fast function tests thanks to an optional manual pushbutton, easy to retrofit
  • Modular design with the following options: Product guide, trigger, brackets, CleanStart function, and adhesive application monitoring

Fast and Precise

The Sempre 15 and Sempre 30 ensure precise dot application with short distances even at high machine speeds. Furthermore, the optimized nozzle geometry ensures excellent cut-off behavior. The integrated stroke adjustment with simple scale is separated from the adhesive port and ensures precise and repeatable fine adjustment of the adhesive amount even under high pressure.

Durable and Efficient

The robust stainless steel design ensures a long service life and simplifies maintenance. Additionally, the vertical adhesive delivery from inlet to outlet reduces the mechanical stress on the adhesive within the application head. The optional CleanStart nozzle cover prevents adhesive drying at the nozzle outlet. This function supports a fast start up after an extended interruption and minimizes the cleaning effort. The application head can be purged near the head for testing or cleaning purposes using an optional manual pushbutton.

Different Design Variants

The cold glue application head is available in two design variants: the Sempre 15 is used for applications up to 15 bar and 24 VDC using PLC, while the Sempre 30 supports applications up to 30 bar and 6 VDC with overexcitation. Additional functions for supplementation and optimum adjustment to the respective customer requirements are available as options, for example, the product guide, a trigger, respective brackets, or adhesive application monitoring with iTac.

Technical Data

  Sempre 30 (6 VDC) Sempre 15 (24 VDC)
Adhesive pressure Max. 30 bar Max. 15 bar
Adhesive Dispersion adhesives D1 and D2
Adhesive viscosity Max. 4‘000 mPas
Operating cycles 1‘000 million
Switching frequency Max. 500 Hz Max. 200 Hz
Adhesive port M16 x 1.5 high pressure or Ø 8 mm low pressure
Adhesive outlet 1 ms 2.5 ms
Nozzle diameter 0.2 - 1.0 mm
Supply voltage 6 VDC 24 VDC
Electrical power 5 W 19 W
Actuation AS 50, AS 60 SPS, AS-IK 40, AS 30
Degree of protection IP54
Robatech AG
Pilatusring 10
5630 Muri
Tel +41 56 675 77 00
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