The Drive «Con«ro,Compa„y *£gg£* Luffing cylinders First Selection Bulk Material Handling & Mining

Table of content Content Cylinder integrated measuring system Drive & control system integration / Life cycle management Alternative measuring systems Luffing cylinder Sealing system of spherical bearings Type code Chevron sealing technology Standard dimensions Stepseal technology Scope of supply / Oil connections Deflection simulation Mounting style Buckling load diagram Self aligning clevis MP5 Inquiry list: general data Double bladed clevis MP1 Inquiry list: technical data Chromium coatings Example: Load Stroke Angle Cylinder Diagram Inquiry list: load stroke angle cylinder diagram Introduction...

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...

Luffing cylinder Luffing cylinder To accurately move a bucket wheel excavator, a reclaimer or stacker, luffing cylinders are used. The luffing cylinder enables the stick-slip free movement and positioning of the arm. The luffing cylinders are used in continuous and sometimes dynamic operations. In most cases the cylinder and piston rod are exposed to mechanically aggressive (abrasive) dust. This might even be in combination with a chemically hostile or maritime environment. A full range of Bosch Rexroth Hydraulic Cylinders for bucket wheel excavators, reclaimers and stackers is available according...

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 Application code TEL Luffing cylinder Bore dimension Bore range from 220 mm – 950 mm Rod dimension Rod range from 125 mm – 670 mm Specific dimensions on request Cushioning U Not applicable K Self adjusting cushioning bottom side S Self adjusting cushioning rod side D Self adjusting...

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 350 bar. The results are applicable to trunnion mounted cylinders and 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 local Bosch Rexroth country...

Scope of supply In most cases the boom cylinder is 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...

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...

Self aligning clevis MP5 The following table shows the size of the hydraulic cylinder with forces they can deliver with a pressure of 350 bar. 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.

Double bladed clevis MP1 The following table shows the size of the hydraulic cylinder with forces they can deliver with a pressure of 350 bar. 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 maintenance free bearing...

Chrome coatings The piston rod surface of large hydraulic cylinders is one of the most essential parts of the hydraulic cylinder. If not good protected, exposure to harsh environments like high or low temperatures, (sea)water, chemicals, mechanical impacts or abrasive materials can influence the cylinders performance. Bosch Rexroth helps you choose the best surface layer for your application to minimize the total costs of ownership. Chromium plating is the most used indoor industrial coating for piston rods. Bosch Rexroth only supplies chromium plated rods in applications where the coating has...