Jack-up cylinders First Selection Offshore

Drive & control system integration 3 Life cycle management Scope of supply / Oil connections 7 Sealing system of spherical bearings 8 Self aligning clevis MP5 10 Double bladed clevis MP1 11 Cylinder integrated measuring system 13 Chevron sealing technology 14 Buckling load diagram 17 Inquiry list: general data 18 Inquiry list: technical data 19 First selection The First Selection is a range of brochures that provides information regarding the technical possibilities of Bosch Rexroth's large hydraulic cylinders' products. Each "First Selection" brochure provides you with necessary information...

Drive & control system integration By means of our Bosch Rexroth Application Centers in Lohr Am Main, Germany and Boxtel, the Netherlands, all the integrated drive & control knowhow is available. Our Application Center consults in complete drive & control packages consisting of: cylinders, power packs, gear boxes, controls, piping, and installation & commissioning. This wide range of knowhow offers you the best complete drive system solution, specifically designed for your application. Bosch Rexroth Application Center Power Units Valve blocks Life cycle management: More than 90% of the life cycle...

Jack-up cylinder Jack-up cylinder Positive engagement systems using jacking cylinders for the catch and holding beams have been incorporated in three, four and six legged platforms. Double yoke jacking systems, increasing the performance of the platform, have been designed for jacking capacities up to 15.000 tons, holding capacities up to 30.000 tons and a lifting speed of 30 meters per hour. CIMS provides details about the accurate position of each cylinder, while load registration guards the progress of the procedures. Designed for the aggressive offshore environment Bosch Rexroth cylinders...

Type code The following table shows the type code that creates the basis for your specific large hydraulic cylinder. Each code marks a basic specification. All specifications applicable in your cylinder are explained below. For further questions, do not hesitate to contact your Bosch Rexroth country unit. Type code Field Type designation CY Cylinders with a single rod Mounting rod side L Male clevis with spherical bearing Application code OJJ Jack-up cylinder External mounting shell side MP1 Female clevis on bottom MP5 Clevis with spherical bearing on bottom Sealing system A Chevron seals T Low...

Standard dimensions Based on our technical knowhow and experience we have defined the table below to help you select the size of your cylinder. This table shows the approximate sizes of hydraulic cylinders along with the pulling force they can deliver at a nominal pressure of 315 bar and the pushing force based on a nominal pressure of 250 bar. The results are applicable to bottom eye mounted cylinders and are independent of stroke- and built-in length. Please note that this is not a catalogue. To calculate the sizes and forces of the hydraulic cylinder for your application, please contact your...

Scope of supply The cylinder can be delivered including manifold and steel piping, all produced and designed by Bosch Rexroth. Although the system and its components are reliable and robust, they also need care and attention after installation. Therefore, installation, operation and maintenance manuals are part of the standard delivery from Bosch Rexroth. Oil connections Transportation of hydraulic fluids into the cylinder is an important issue. The oil connection has to be suitable for the oil flow rate and pressure, required for the application. Connection angle Hydraulic piping is mounted...

Mounting style The mounting style represents the cylinder’s connection and interface with the structure. The mounting style and position have effect on the cylinder’s behavior. Bosch Rexroth helps you optimize this behavior for the best fit in your application. Mounting position optimization With sophisticated design tools, Bosch Rexroth can support in an early design stage to optimize the position of cylinder mounting to the structure. We are able to determine the minimum required bore, rod and bearing diameters, the initial shell thickness, the best angles of rotation of all pivot points, including...

Sealing system of spherical bearings Cylinders are often equipped with clevises to connect the cylinder to your application. To reduce stress on this connection, Bosch Rexroth can place a spherical bearing in the clevis. This bearing creates a movement margin for the cylinder. When cylinders are situated in a dirty environment or under water, it is vital to protect the spherical bearing from corrosion and dirt. Our extra protection system and the seals in the bearing itself, increase the service life time of your spherical bearing. To shield the spherical bearings from elements that cause wear,...

Self aligning clevis MP5 The following table shows the size of the hydraulic cylinder based on a design pressure of 315 bar on rod side and 250 bar on bottom side. All sizes are calculated based on Bosch standards for semi static applications. For dynamic applications please contact Bosch Rexroth cylinders. Please note that this is not a catalogue. To calculate the sizes and forces of the hydraulic cylinder for your application, please contact your local sales department. ■ Safety factor of 1,25 is taken into account. *Note: The choice of the pin diameter is based on the bearing capacity of a...

Double bladed clevis MP1 The following table shows the size of the hydraulic cylinder based on a design pressure of 315 bar on rod side and 250 bar on bottom side. All sizes are calculated based on Bosch standards for semi static applications. For dynamic applications please contact Bosch Rexroth cylinders. Please note that this is not a catalogue. To calculate the sizes and forces of the hydraulic cylinder for your application, please contact your local sales department. ■ Safety factor of 1,25 is taken into account. *Note: The choice of the pin diameter is based on the bearing capacity of a...