Miehle V-50 help

The information I have is for a pre-war V-50:

Width 4’ 2 1/2”
Length 5’ 2”
Height 4’ 7”

The width is probably the limiting factor, and the presses after the war are most likely close to these dimensions.

I ran a vertical with a phase converter no major issues

Ramblings from U.K.… Vertical running from Artificial Phase Converter O.K. up to a point, except that our original Converter was 3 stage,i.e. (1) up to 3 H.P. (2) up to 5 H.P. & (3) up to 8 H.P. not very efficient across the range,! by virtue of the construction, especially when there was a volt drop on the incoming main (half time on major sporting events etc.)
The converter was A. very heavy, B. alive with inneficient transformers, capacitors, chokes etc. and produced very *iffy* 2nd. and 3rd. phases, frequently causing the Motor on the Vertical, to HUNT looking for the Frequency and supply for the 2 extra phases = traded up to a modern Hi-Tech all singing all dancing converter, bordering on perfect,!!

Moving through normal doorways,?? as Fritz implies above normally mission impossible, BUT we shifted and delivered One V 50 where the only street level doorway was *No Go* with the Door Frame removed (no brick work disturbed) and the M/c. on three steel rollers we offered the M/c. up to and into the doorway about 15% through and then swung the M/c. at an angle on the rollers, allowing the flywheel to thread around the brickwork, took a long time and probably not practical elsewhere.
One good aspect with the V 50, with the Cylinder and the Bed in opposition to one another (in the right position, by hand) the massive Main Frame cross beam at Top lends its self to very substantial webbing lifting strops, but HAVE to be braiced apart when lifting.

Installed a uk v50 earlier this year using straps onto the top cross frame then putting on bogie plates to move across the floor. Managed to get the press through a 52 inch doorway..
question to Mick …. do you know how many verts in the
uk, at present I only know of 5

Installed a uk v50 earlier this year using straps onto the top cross frame then putting on bogie plates to move across the floor. Managed to get the press through a 52 inch doorway..
question to Mick …. do you know how many verts in the
uk, at present I only know of 5

Frank, Sorry pass on that one, Locally (Sussex) 3 Only known to me (1st.) in use Peace haven, (2nd.) Sadly, gathering rust in Brighton, (3rd.) In storage at our Local Museum, not for sale although I would like to purchase, BUT may be pressed into service, but then, the Pope may catch a Saturn *V* to the Moon.??
As Frank Bruno, (Boxer) said to Harry Carpenter, Commentator) Know what I mean “Arry”?
I do have a few odd spare parts if ever.?

One of our Bigger Graphic suppliers IS keeping me in mind, to pass on whispers from the grape vine, beer money may be involved.!! Regards Mick.

Thanks all!

My apologies to bump this and/or double post, but as we checked out the press realized it was a V-50X and not a regular V-50. It has an air compressor on it that runs quite loudly and may be cause for noise concern in our building as it’s a mixd use retail/office space. Does anyone have experience running one with a quieter operation?

Thanks again,

mnreggie

Verticals have 2 air pumps, not one. One is for suction, the other for blast. I don’t think there is any difference in the pumps used on the V-50X from the later run of regular V-50s. And yes, they do produce some noise, regardless of model. I’m not sure of a way to muffle them. The V-50X is the latest version of the Miehle Vertical and has some improvements over previous models. They have a different sheet metal surround, being boxier and more modern (at least by 1960s standards) in appearance, but essentially the same machine. Being newer, a V-50X should have less wear than older versions. These were produced mainly for the check imprinters who used them well into the 1990s and some beyond. Automatic presses make noise, some louder than others, but it is unavoidable.

check for filtration on the pump. most noise from a pump comes from the “intake” , “vacuum side” of the pump. adding over sized filters to this may quiet it down quite a bit.

My V-50 was built in 1951. It uses diaphragm pumps to provide the blast & suction. Recently the noise level increase dramatically so I know the diaphragms in the pumps need to be replaced in the near future. So far it hasn’t effected the blast or suction but experience tells me it soon will. I was able to order replacements from

If you are able to have a local person who is familiar with the V-50 check the pumps, you might find the diaphragms need to be replaced.

Mike

mnreggie:

Often equipment running will transfer vibrations to the floor which can accentuate the actual sound. If on a concrete floor, you could try thick rubber pads under the footpads of the press to isolate it from the floor. If on a wooden frame floor, the rubber pads may help, but the floor itself may be amplifying the sound.

Go to an industrial supply website like:

http://www.grainger.com

and search for vibration isolating pads.

If indeed it is the air pump, rebuild it or utilize a quieter model mounted outside the machine and connect the tubing to the appropriate ports for blower and vacuum.

John Henry

I run a Heidelberg cylinder with a rotary phase converter and noise is an issue when the converter is not under load. A static phase converter would be quiet but less efficient, and is designed for a specific motor, where my rotary converter just has a maximum HP load, can actually supply varying motors; here it is switched between presses because of service limitations.

Ramblings from the U.K. may or may not be useful or even relevant, may not even transfer back to the U.S.A.
During the 60,70.s etc we saw V.M.s with 2 Distinct types of pumps, in both cases in the same position and running from a common counter shaft , driven by a primary *V* belt (from the back of the Slave Pulley) for the 3/4/5/ interchangeable pulleys for the Speed,s!

Generally the V.M.s Badged as M.G.D. (Meihle Goss Dexter) or Vice Versa employed 2 pumps as normal? same place same drive, BUT were the Centrifugal Rotor type with either Paxolin or Carbon Vanes. easy to clean OR replace, ring of screws at the non drive end, soaked in spirit, replaced with just 1-2 tiny shots of 3 in one, oil to assist re-seating/running in.

Generally the Paxolin/Fibre, vanes arrived, already contoured to match the eccentric body of the pump, but could be turned laterally, 180 degrees, for extended life!!
whereas the Carbon Vanes were supplied dead square, and needed *Running In* No Problem? . . For 30/40 minutes, with the relevant hoses disconnected, a few squirts of metal polish 50/50 with light oil, as running in compound = Good For Go.

Although the bearings were *Packed for life* it was no problem every few hundred hours running, to warm them up (the bearings) still on the rotor, and effectively re introduce new grease, it was not rocket science.!!!

If and when we used V.M.s with diaphragm style pumps, normally Spares were carried in house, or available by return post, when all else failed, it was quite normal to manufacture (D.I.Y) diaphragm,s from Litho Blanket, if the litho blankets were/are impervious to every thing the litho throws at them, coupled with the canvas back, a few *Pip Squeaking* Inches of mercury, (vacuum) or a few pounds pressure (P.S.I.) was/is a doddle for litho blanket diaphragm,s.

Apologies, if ramblings are just THAT, or are not applicable in the U.S.