Nisshinbo sheet metal-working machines are once again available in the UK, offered by RPA, Spencer's Wood, Berks.
RPA formally offered supply support for Nisshinbo punching machines, press brakes and shears in the UK, Ireland and The Middle East some five years ago, in fact.
The machines are now known as Yawei-Nisshinbo machines. Nisshinbo has a joint manufacturing and development project with Yawei Machine Tools of China, based in Jiangsu. Yawei recently celebrated its 50th Anniversary of machine tool production, fast expanding it currently operates out of a 300,000 m2 modern production works.
The company designs and produces the whole gamut of sheet-metal-working machines - punch presses, press brakes, guillotines, material handling, coil line processing, slitting lines.
Nisshinbo Japan has an on-site department from where its engineers help oversee the production, development and quality control of the punch presses. Control of machine quality being of such importance, it is only now that the machines are being marketed here.
Nisshinbo supply all the turrets and beam assemblies; Voith the hydraulics; CNC control, drives and motors come from Siemens; while the linear ways and ground ball-screws come from THK and Raco.
RPA’s initial launch will concentrate on the HPI and HPH range of punching machines, all Bridge-framed 30-ton, hydraulically powered with axis ranges of 1250 by 1250 mm to 1500 by 2500 mm. They are competitively priced and carry even higher specifications than the earlier Nisshinbo machines, including powered clamps, powered tool hoists, brush tables, lowered die mounts for easy changing, a multiplicity of auto-index stations and twin-track turret layouts.
The Nisshinbo sourced auto-index system on every machine has the unique ‘Constant-Touch’ high-precision worm gear drive immersed in sealed oil baths so ensuring that the long-term accuracy of the high-precision worm gear system is guaranteed.
Lubrication figures in the tooling care programme too, ram head and tools being fed with a mixture of high pressure air and lubricating oil, whilst elsewhere in the machine all major components are also quietly being lubricated, automatically.
New innovations include the patented ‘POWER-MIZER’ , an hydraulic servo ram with full positional feedback. The programmable ram speed allows for an optimum and low impact force, so prolonging tool life, reducing noise, and minimising energy consumption. The POWER MIZER also enables the ram's BDC (Bottom Dead Centre) to be programmed in 1/1000 mm increments and to be locked at absolute BDC, a boon for complex forming operations.
POWER MIZER, when coupled with the programmable clamps and ‘EASY-SWITCH’ grips, also allows better utilisation of the versatile Wilson vertical wheel slitting and rolling technology.