2105 Vertical Necking Machine


The Vertical Necking Machine is designed to neck down balloon tubes.
This process step comes prior to the balloon forming process. The target is to reduce the tube diameter beforehand in order to eliminate the calibration process after balloon forming. The tube is heated partially by a specifically designed air nozzle and the diameter is reduced by axial moving of two linear slides with different speed and travel.

The final diameter of the tube can be changed by adjusting either temperature, speed, travel or relative motion of the two axis.
The parameters of every product can be stored as recipe in order to achieve reproducibility.

Technical Specifications:
Up to 800 tubes per shift
Process time:1–3 min
5-up Machine
Tube diameter:Ø 0.4–3.5 mm
(optional up to 9 mm)
Pneumatically actuated clamps
mass flow controller:0- 50 nl/min
2 Linear slide with ball screw spindle and 3Phase stepper motors with 4 Nm
Axial force1500 N
Travel distance:800 mm
Travel speed:1–150 mm/s
Process temperatures:20–300° C
Heating time:0–30 s
Cooling time:0–60 s
air pressure:6–10 bar (87–145 psi)
simple user interface with BW-TEC HMI on touchscreen
Safety light curtain
PLC controller and PC for HMI and data managment
network compatible
(L x W x H):
700 x 600 x 2200 mm
weight:120 kg
power:115/230 VAC
1600 W


airflow channel
product clamps
user interface BW-TEC HMI


alternative link to the video