Rotary table specialist PL Lehmann is looking forward to welcoming customers on Stand 28 in hall 17 at MACH 2020 (Birmingham NEC, 20-24 April). Since 2018, the company has been directly represented in the UK and Ireland with sales and services. PL Lehmann prides itself on close relationships with partners from the machine-tool industry. Indeed, its scope of supply for rotary tables allows interface with most vertical machining centres and grinding machines.

The compact Lehmann rotary tables show their advantages by being light in weight and small in footprint, but strong when it comes to clamping torque and load weight. These attributes means users can still use quite a bit of space on their machine tables for three-axis operations as room remains for additional vices.
Lehmann’s modular system is based on four sizes of rotary table, which are expanded by a building kit to create customer solutions. With a clamping torque range of 250 to 5000 Nm, spindle load capacity between 17 and 1600 kg, speed from 40 to 300 rpm, and accuracy of 2 arc-sec, the company says its rotary tables are in a class of their own.
The range also permits the creation of different fourth-axis solutions with up to four spindles, tailstocks and counter bearings, as well as a five-axis solution featuring a strong and precise rotating and tilting axis. In addition, the modular systems allow a direct encoder and special labyrinth sealing for grinding applications.
For further information www.lehmann-rotary-tables.com

The products of Roemheld Rivi, a manufacturer of magnetic clamping plates for securing dies and moulds, are now available in the UK through the Hitchin headquarters of Roemheld UK.

Solutions from Roemheld Rivi are deployed not only in the plastics sector, but in the rubber industry. It is the only magnetic die-clamping company to have the technology to operate in the rubber sector due to the ability
of its M-TECS series plates to withstand temperatures up to 240°C.
Dies and moulds made from ferromagnetic materials can be clamped and subsequently released over their full surface area, while high plate stiffness resists bending. The systems work without electrical power and require only a short current pulse lasting a few seconds to activate and deactivate the magnets.
Permanent magnets generate a field that penetrates a few millimetres into the tool and hold even heavy mould halves weighing several tons in the correct position, bringing them together absolutely parallel. Even moulds with complex geometries can be precisely clamped without deformation, while uniform distribution of the clamping force ensures low die wear.
Every magnetic clamping system is customised by Roemheld Rivi using standardised components and is virtually maintenance-free. Solutions can be configured flexibly with regard to size, geometry, clamping force and fittings, and are available on short delivery times. The systems can generally be retrofitted to existing machines within just a few hours.
Roemheld Rivi is currently forming a new network comprising 15 service locations throughout Europe and one each in the USA, China and Japan. Intensively trained Roemheld Rivi engineers will provide enhanced support for customers in their native languages, and each centre will have access to replacement parts to speed service and support.
For further information www.roemheld.co.uk