Areas of application high-speed tubular stranding machines are used mainly for the production of:

• compacted and non-compacted strands and ropes made from bright, galvanized or stainless-steel wire
• pre-stressed and non-stressed elevator ropes
• Bowden strand
• Special ropes

Machine Configurations for the production of strand and rope, consisting of:

Tandem tubular stranding machines are suitable for use as two separate machines or as a single machine running the two machines for production of strands in various constructions.

CSM METALURJI designs the stranding machines with stretching unit to manufacture of elevator ropes in high-speeds. For manufacturing Bowden cable and special ropes additional bull-head pay-off can be integrated tubular stranding machine.

The Rotors;

The tubes consist of a number of tube sections, which are housed in encircling bearings resulting in high speeds, low power losses and simplified maintenance. Dependent on the size of the bobbin, the tubes accommodate up to four bobbins per section. The lubrication and the temperature of the bearings is continuously monitored.

Bobbin tension systems;

They are designed to suit the needs of the particular requirements. The following systems are available:

• standard bobbin brakes have a braking chain with virtually wear free Teflon brake blocks or a Kevlar brake rope
• mechanical bobbin brakes controlled via a contact roller
• mechanical bobbin brakes which are controlled via a spring loaded dancer
• mechanical bobbin brakes which can be varied from the control desk during the operation of the machine via an electrically operated cylinder
• electric bobbin brakes to provide automatic tension variation

The machines can also be fitted with gauges to measure and display tensions in the materials being stranded.

Drive and Automation Technology

• machines are driven by frequency controlled three-phase motors, providing separate drives to the stranding rotor, haul-off and take-up assemblies meaning that gears and transmissions are no longer required for this purpose
• digital control technology enables the infinitely variable lay-length to be set from the control desk
• speeds can be infinitely varied from the control desk position during the operation of the machine
• touch screen control via programmable controllers provides fully automatic process control and operation, machine monitoring, programme management, data recording and storage, service functions and maintenance
• speed and angle synchronization, torque- and traction control
• maintenance of all product related quality parameters at all times ensured by controlled machine braking, including in the event of an electrical failure (AC drive versions)

Ancillary Equipment

Essential for the performance of CSM METALURJI high-speed stranding machine are:

• stationary, rotating or traversing pay-offs and take-ups accommodating bobbins having a flange diameter of up to 3,000 mm
• haul-off technology based mainly on double-capstan haul-offs, tailored to the requirements of the customer and having a pull of up to 400 kN
• pre- and post-formers to suit the technological characteristics of the stranding material or finished product
• calibrating- and compacting equipment
• strand- and rope lubrication equipment
• strand tension measurement equipment