A30.90

Stretcher


Stretcher
AIM

Stretch profiles after cooling in order to straighten them and realign tensions and molecular grain.

ADVANTAGES

Turla stretcher design makes you save money in civil works preparation because is the most robust on the market. Its bed is mostly self supporting and no or little force is discharged to the ground. It is a very sturdy and solid machine that will last many years.

  • DESCRIPTION
  • FUNCTIONING

 The machine is built by Turla from structural steel then assembled, welded, stress relieved and sand-blasted. Stretcher Head-Stock. When the stretcher is in stretching mode, the main cylinder is in push mode. Due to the type of force this provides a lower oil pressure. On the front part of the stretcher mouth a feed-belt is usually installed, to facilitate the feeding of the profiles into the stretcher mouth. Stretcher Tail-Stock The frame is also heat treated (as is the head-stock) to obtain stress relief of the welds. This is to avoid deformation over time. Same as for the head-stock, all the sliding parts are machined to obtain the best possible result. The tail-stock group travels on wheels, and runs all long the entire length of the guides from the minimum stretch length to the maximum extrusion length. Profile Locking It is manufactured so as the clamping pressure is always proportional to the pull. In fact the upper part of the clamp is made up of a number of fingers that are independently mobile and able to adapt according to the profile’s shape. They have been engineered to lock onto the profile with a force directly proportional to the pull. Such an application increases the safety level of the machine, since only the weight of the fingers rest on the profile when the stretcher is not in pull mode.

Utilization Mode The stretcher can work as follows:

  • 1 operator for normal profiles
  • 2 operators in case of hollow profiles that require wedges to be fit at the ends of profiles to decrease deformation due to stretching operations
  • No operators in case of straight and lined up profiles having a distance between each other of about 400 mm. < The positioning of the tailstock will be always carried out manually by the operator through a switch selector.

Profile Area [mm2] / [sq.inch]: -

Required stretch force [t]*:

Turla Stretcher Class [t]*: