Puls2™ by Novaseal®

Puls2™ Sealing Technology was installed on your machine.  Released in 2014, Puls2™ sealing technology is the latest technology advancement in the heat sealing industry.  Puls2™ emulates RF (High Frequency) heat sealing in that sealing is frequency modulated, however Puls2™ is not limited to sealing dielectric materials and can basically be used to heat seal all materials.  Puls2™ is patent pending and Nova Products Mfg., Inc. is the only heat sealer manufacturer that makes heat sealers with this revolutionary technology.

The animation (inset left) illustrates how Puls2­™ works.

Similar to Novaseal’s first generation of pulse sealing, aka original pulse sealing, one program setting can often work with many different materials. This happens because Puls2™ sealing energy is allowed to be absorbed into the layers of materials to be sealed. The frequency modulated (pulsing) nature of this technology allows enough time between Pulse Energy ON cycles for the heat energy to be absorbed at a rate that results in only sealing without discoloration or deformities associated with sealing methods such as impulse sealing and hot die sealing.


The photo inset right is a screenshot of the Home screen showing on the HMI (machine interface) of the Control Panel. The parameters shown are only for illustration purposes.

Parameters defined as follows:

PLS. Pulse height or amplitude. Value entered in seconds. As shown, the value is 0.25 seconds. PLS is the Puls2™ Energy as exposed to heat. As PLS increases, discoloration when sealing white vinyl became more noticeable. The small circle to the right of PLS on the Home Screen will blink on/off to represent when PLS is on. How often PLS is on depends on setting for MLPS.

PWD. Pulse width or duration of time allowed for Puls2 Energy absorption. As shown, this value is 3/10 of a second. Sometimes referred to as “soak: time.

MLPS. Multiplies PLS + PWD. As shown, this value is 14-times the sum of PLS and PWD. This value is often described as Puls2™ Energy Strength.

COOL. Final cycle is cooling. Cooling is defined here as the absence of heat. In other words, no heat time. Although shown as 10 seconds, this number can easily be reduced to 5 seconds on a lightweight material. Cooling is needed to re-set the heated materials. Too little time will produce “strings”. There is never a problem with too much time.

With a cool time of 10 seconds, total cycle time is calculated as:

14 times (0.25 sec + 0.30 sec) plus 10 sec = 17.7 seconds.