The SAMP double-twist bunching machine platform

For over 70 years SAMP has been one of the leading companies in the development and production of wire and cable manufacturing machines, which are synonymous with precision and excellent quality of the final product all around the world.

Extensive research and the continuous improvement of existing technology has recently led to the development of the new SAMP Double-Twist Bunching Machine Platform, which is designed for reels with a flange diameter in the range of 250-1250 mm and up to a total weight of 4500 kg when filled (in case of copper strand).

In developing the new platform, the targets have been:
- Energy consumption reduction due to the implementation of Low Energy Consumption Bows;
- Ability to run the machine without human intervention thanks to the SAMP Automatic Traversing System, which includes:
- Automatic detection of the reel dimensions;
- Automatic Traversing adjust;
- Programmable strand tension by Load Cell Dancer;
- Low Preventive Maintenance;
- Pay-Off System Integration with wire break detection;
- Energy Efficiency architecture for high Power Factor (cosφ);
- Unique Drive and System Control Platform for all machines type;
- Integrated Motor Power Unit installed inside the cradle for electronic machines;
- Communication based on Safety Integrated industrial Wireless Technology.

The SAMP Double-Twist Bunching Machine Platform can be summarized as shown in the sketch.

In the Electronic Series the Drive system is based on an Integrated Motor Power Unit (IPU), installed inside the cradle. The drive system is supplied from the outside through a bus whereas all communications between the external control cabinet and the motors is based on Safety Integrated industrial Wireless Technology.
The models BM 630 E, BM 800 E and BM 800 C have the IPU fully integrated in one unit (motor and drive), while the BM 1250 adopts standard motors with drives installed in a cabinet on the cradle. Due to the compact structure of the slip-ring and brush-holder system, maintenance operations are reduced to a minimum.

For all bunching machines, SAMP designs its own bows which are aimed at:
- Reducing energy consumption thanks to the aerodynamic shape;
- Minimizing the wear of eyelet and wire path;
- Diminishing the damage of wire surface, important for stranding electroplated wires (i.e. tinned, nickel plated copper, etc.);
- Decreasing the damage of insulated cores surface.

Open bows are available with carbide or ceramic eyelets or rollers for bare and coated wire, aluminum wire, bare strands and insulated cores.

The SAMP manufacturing program also includes pre-twisters, equalizers, taping units and a wide range of static and dynamic pay-offs with pneumatic dancer for synchronization.

More informations can be found here.