Upgrading long-serving steel tubes hoists

How Vallourec reliably extended the life of their fleet of 45 years-old steel tubes-handling hoists with MotoSuiveur Solutions.

The Customer

Vallourec is a world leader in tubular solutions for the energy sectors and for other applications, including some of the most demanding: from oil and gas wells in extreme conditions to next-generation power plants to daring architectural projects and extremely high-performing mechanical equipment.
Vallourec logo
“MotoSuiveur Solutions helped us to secure the hoisting equipment of our fleet of 10-ton overhead bridge cranes. They adapted to our kinematic chain, without modifying it. Siguren were able to guide us and provide a technical support, even for special requests, with adapted solution.”

— Fabien Marouard, Crane Manager

The hoist

Description
Hoist componentsFive double drum cranes
~40 years-old technology
Slip-ring rotor motors
No frequency invertors
Crane lifting capacity (SWL)5x 10 t
Hoist duty rating (ISO / JIS Classification)M8
Legacy design with no room for emergency brakes One of the 5 double-drum cranes before the upgrade. Notice the low height of the drum axis which makes a the integration of an emergency disc brake impossible.

Hoisting challenges

Proximity to Personnel.

Customer is implementing more demanding safety standards for warehouse cranes operating close to working personnel.

Legacy hoist design.

  • 40+ year-old equipment.
  • Abrupt hoist start and stop.
  • Low axis height.

Heavy duty.

Continuous operation.

Does your hoist present similar challenges?
You are one retrofit away from operating a fail-safe hoist.

The MotoSuiveur Solution

The following MotoSuiveur Solution was selected and configured for integration to the hoist:

MotoSuiveur Solution
Newly fail-safe hoist. The hoist structure remained untouched through the MS upgrade. MotoSuiveur units bear the drum in place of the old plummer blocks.
Dusty environment. MotoSuiveur Units are hermetically sealed.
Straightforward installation.
  • A custom flange was produced to fit the drum.
  • A simple positionning platform was added to the trolley.
  • No structural modifications to the hoist or trolley.

Benefits of the MotoSuiveur-Secured hoist

Fail-safe hoist.

Maximum level of safety for close-working personnel.
If the MotoSuiveur-Secured hoist undergoes any fault condition that puts the load into free-fall (such as a mechanical rupture, power failure, control failure, etc), the MotoSuiveur Unit instantly self-locks and absorbs the kinetic energy to safely arrest the load within 20 mm of load descent.

Moreover, overspeed is prevented, it cannot occur.

Light & optimized retrofit process

  • No alteration to hoist structure or layout.
  • Plummer block replaced by MotoSuiveur Unit.
  • Easy integration with hoist controls.

Reduced maintenance, Easy testability & Extended hoist life

  • Mechanical protection from hoist overloads with MS torque limiter. All hoist components see their lifecycle extended.
  • Full safety tests with proof loads can be run easily without presenting any risk for the personnel or the installation.
  • MotoSuiveur Unit is hermetically sealed and has no wear parts. Maintenance needs are reduced and are not safety-critical.

More customer stories

MSxF Series

The MSxF Series of MotoSuiveur Units come in 8 sizes,
according to the application’s required arresting torque.

Talk to an expert

Our team of Engineers is here to help.

We can answer any questions you have, ranging from building fail-safe hoists to details about MotoSuiveur technology.

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Download the MotoSuiveur® Catalogue

Download your copy of the MotoSuiveur® Catalogue including selection guidelines, fitting dimensions tables, electrical interface information and examples of application.

This data is strictly restricted to internal SIGUREN technologies purposes. We will not share it with any outside person or service.

Descargue el catálogo MotoSuiveur®

Descargue su copia del catálogo MotoSuiveur®, incluyendo las directrices de selección, tablas de dimensiones de montaje, información sobre la interfaz eléctrica y ejemplos de aplicación.

Estos datos están estrictamente restringidos a los propósitos internos de SIGUREN. No los compartiremos con ninguna persona o servicio externo.

Thank you.

Here is your MotoSuiveur® catalogue download link :

Learn about the MotoSuiveur® solutions applied by our customers to deliver lean and efficient cranes satisfying the highest safety requirements.

Talk to a MotoSuiveur® expert

Need advice on which MotoSuiveur® solution is best suited to your requirements ?
Our team will help you get started in no time.

This data is strictly restricted to internal SIGUREN technologies purposes. We will not share it with any outside person or service.

Hable con un experto en MotoSuiveur®

¿Necesita asesoramiento sobre qué Solución MotoSuiveur® se adapta mejor a sus necesidades?
Nuestro equipo le ayudará a empezar en poco tiempo.

Estos datos están estrictamente restringidos a los propósitos internos de SIGUREN. No los compartiremos con ninguna persona o servicio externo.