Stefani Srl is a dynamic company, over the years we have constantly developed our machines by applying the best technologies available.

Via 2 Novembre n°3 Muina di Ovaro 33025 (Udine) Italy  |  Email : stefaniglass@libero.it  

 |   Tel : +39 0433 67148  Tel : 389 292 2984



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An accurate design leads to excellent results, the search for effective solutions and the use of high quality components make our machines efficient and reliable.




The butylating machine K700 SYNCHRO has the push rods and the butylating phases synchronized with the working speed and do not require adjustments. The operator can however set the quantity of extruded butyl (g. X ml.) ways ficare the beginning and fine of the butylating on the groove, simply by intervening on the Touch-Screen. The extruders made of steel are hardened and chromed and are not subject to wear even using the CHROMATECH stainless steel pro fili. The new panels Omron operator

are equipped with a tactile display for simple and intuitive use, the realistic and captivating graphic setting makes them extremely functional. With the IP65 protection degree they are perfectly suitable for use in harsh industrial environments. The K700 SYNCHRO Butilator it has a standard function of auto shutdown of the motors after 4 minutes of inactivity, this allows to significantly reduce the consumption of electricity and guarantee a long life of the components.



  • 7 ' color touch screen with Omron PLC
  • Rotating extruders with manual positioning
  • Hardened and chrome-plated extruders
  • Pneumatic batten entry into the extrusion apparatus
  • Central batten for butyling of round and shaped elements
  • Pneumatic batten outlet from the extrusion apparatus
  • Hydraulic unit with double silenced pump
  • Thermostat for the control of the maximum temperature
  • Machine hour counter in operation
  • Counter of the number of refills carried out
  • Silicone conveyor belt
  • Working direction from right to left
  • Adjustable butyl extrusion with manual device
  • Thermoregulation with PID control
  • Air purge valve
  • Automatic shutdown of motors after 4 minutes of machine inactivity
  • Weekly timer for machine preheating
  • Automatically height-adjustable sealing for 6.5 and 8 mm channels (optional)
  • Hydraulic oil with anti-foam and anti-rust additives filtered at 9 micron
  • Display date and time
  • Adjustment group and filtraction of compressed air
  • Pneumatic tensioning of the conveyor belt
  • Power supply stabilizer
  • ​ Web module for data communication and monitoring via network (optional)
  • Steel structure pickled and oven painted with epoxy powders



  • Pneumatic operating pressure bar. 7/8
  • Compressed air consumption 90/100 l / hour
  • Power supply 400 VAC 3 Phases + Neutral (50/60 Hz.)
  • Absorption in the heating phase kW 2.3
  • Absorption during work kW 1,7
  • Total installed power VA 4500
  • Sound emission dB. 55
  • Length 300 cm
  • Width 74 cm
  • Height 113 cm
  • Weight kg. 650

  • Load capacity kg. 8
  • Min / max opening of extrusion heads 5/32 mm
  • Manual positioning of extrusion heads mm + - 0.1
  • Maximum working speed m / min 38
  • Average working speed m / min 24/26
  • Adjustable extrusion temperature 120/145 ° C
  • Winding cylinder diameter 200 mm
  • Manually adjustable butyl extrusion g. x ml. 1.5 / 4.5
  • Charging time min. 3
  • Machine warm-up time min 40/50
  • Adjustable hydraulic pressure bar. 60/140



K700 Synchro model 2020

Extrusion group with two pneumatic rod holders plus self-centering gripper.
Control panel with Omron 7 "color touch screen.
The hydraulic unit has an oil level indicator and is mounted on anti-vibration feet.
The amount of extruded butyl is regulated by a manually operated hydraulic valve.

Compare the K700 Hi-Tech Butyl Machine with K700 Synchro

Note: We are constantly striving to improve our products. We therefore reserve the right to make any improvements and modifications on our machines that we deem necessary without prior notice.


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