DROMEC Range of Constant Tension Machines
DROMEC Constant Tension machines are known for their versatility and multifunctionality as spooling machines. They are used in various market sectors, from winding and unwinding electrical cables to spooling heavy towing wires for offshore vessels. In terms of both power and size, DROMEC has developed an impressive range of winches over the years.
Electric Drive
What makes this approach unique is that DROMEC deliberately opted for fully electric-powered systems a few years ago. Cees Drost explains: “This transition brings numerous key advantages for DROMEC. First and foremost, we require significantly less motor power for the same forces, as electrically driven machines operate far more efficiently and therefore consume less energy than (diesel) hydraulic systems. This immediately leads us to the second major advantage: a substantial reduction in environmental impact. Additionally, diesel fumes in work halls used to be a common issue since diesel/hydraulic systems were also used indoors.”
“There is also the aspect of noise reduction. I clearly remember starting our first diesel-hydraulic systems: a massive plume of smoke, and then it was nearly impossible to hear each other. Of course, the technology has improved significantly since then, but it still doesn’t compare to the silence of an electric system. For operators, this is a huge improvement, allowing them to fully focus on the operation. Furthermore, an electric drive offers numerous additional possibilities, such as precise settings, accurate readings, and—within our high-end range—the addition of diameter sensors. This means the operator no longer has to manually adjust pressure or tension during spooling; the machine automatically corrects it. And what about a spooling report afterward? No more discussions with customers about too much or too little tension during the spooling process. All of this is already built into the system as standard, without needing additional modifications.”
Pre-Tensioning
DROMEC sees that these machines are primarily used in markets such as rigging companies, where large lengths of cables are cut to specific customer sizes, whether for steel or synthetic ropes. Another key application is replacing steel cables on cranes and pile-driving rigs, where old wires are first wound onto an empty reel before the new or cleaned cable is wound onto the machine under pre-tension. Additionally, DROMEC spooling machines are frequently used for wire inspection. In a single back-and-forth movement, wires are degreased, inspected, re-lubricated, and immediately rewound onto the winch under pre-tension.
Custom Solutions
Upon request, DROMEC can integrate customer-specific features such as Active Heave, line measurement, high speed, or specific pulling forces. The spooling machines vary in pulling force, ranging from 60 kg on the smallest machine to 42 tons (on the core) on the largest. The development of new spooling machines always revolves around two essential factors: the maximum reel weight the machine can handle and the required pulling force. At DROMEC, we are always up for the challenge!
FAQs & Answers
What are DROMEC Constant Tension Machines used for?
They are used for winding and unwinding cables, spooling offshore towing wires, and pre-tensioning applications in various industries.
Why did DROMEC transition to electric-powered systems?
Electric systems are more energy-efficient, reduce environmental impact, minimize noise, and offer advanced features like automatic tension correction.
What industries use DROMEC spooling machines?
Industries include offshore, rigging, crane operations, and pile-driving, where cables need precise spooling under tension.
What advantages do electric-driven winches offer over hydraulic ones?
They consume less power, operate more quietly, eliminate diesel fumes, and enable automated tension adjustments.
Can DROMEC machines be customized?
Yes, features like Active Heave, line measurement, and specific pulling forces can be integrated based on customer needs.
What is pre-tensioning, and why is it important?
Pre-tensioning ensures cables are correctly wound with optimal tension, improving their longevity and performance in demanding applications.
What is the pulling force range of DROMEC machines?
The smallest machine has a pulling force of 60 kg, while the largest reaches 42 tons.
How do DROMEC machines contribute to environmental sustainability?
By using electric drives, they reduce energy consumption, eliminate diesel emissions, and improve workplace safety.
Can these machines be used for wire inspections?
Yes, DROMEC spooling machines enable wire degreasing, inspection, lubrication, and rewinding in a single operation.
Where can I get a custom-built DROMEC spooling machine?
DROMEC offers tailor-made solutions—contact us for specifications that fit your needs.
