walter rotary table brands

Founded in 1936 by Mr. Gotthilf Walter as a mould making company for the concrete industry, the company developed and adjusted their portfolio through the decades to meet the trends and demands, especially these of the machine- tool market.

Already in the early 60’s WALTER has moved from the completely manual indexing units to digital readout units. From there it was only a logical step forward in the 70’s to the first NC-controlled units.

With its CNC controlled Dividing Heads and Rotary Tables and customer specific solutions based on these units, GOTTHILF WALTER GMBH is one of the technology leaders in this industrial sector.

Dividing Heads „Made by WALTER“ are first-choice throughout the industry – small, medium and large companies, especially when high quality manufacturing of a complex workpiece is required.

More than 50 highly skilled and motivated personal are giving their highest possible efforts to ensure that WALTER Dividing Heads and Rotary Tables and the involved services give you already today the deciding

Walter Horizontal Tilting Rotary Table RTS 400-HP-A 16" Electric Tilting rotary table. SN:2888. Rotary Table manual with digital readout resolution to 0.0005/1 arc second. Vernier tilt. New cost was $19000.00

To read the table position, the operator turns a micrometer knob to center one of the circle graduations in an aperture that appears to be 3 times or so the width of the circle line. Once the graduation is centered in the aperture, the circle degree value is read, and then the subsidiary value -- usually expressed in arcminutes and arcsecond is read from a micrometer-knob display.

I"ve used rotary tables having this type of display made by Leitz and by Heidenhain, on rotary tables made by Eimeldingen, Troyke, and an Italian-made table that had only an importer"s name. If I"m remembering right, the Leitz system position-measurement uncertainty was +/- 2 arcsecond, the Heidenhain uncertainty +/- 3 arcsecond if properly installed.

Both glass- circle and Inductosyn scale systems require that their circle graduations be very well centered on the rotary axis. This need for precise centering has been their marketplace downfall, as their correct alignment at installation is a painstaking and time consuming process.

In contrast, the "optical encoder" systems are easier and much faster to install. Of course, early optical encoders had their own weakness, readhead lamps. In the mid 1980s, my employer was in the market for a new rotary table that would take a 10,000+ pound workpiece. Having been very satisfied with a 1 meter Eimeldingen rotary table, we inquired of Eimeldingen. Eimeldingen told us that neither the Leitz nor Heidenhain glass-circle systems were still available, and they were reluctant to fit an Inductosyn system. Instead, the recommended using a Heidenhain ROD / RON 700 angle encoder.

We ended up buying a 48 inch Knight rotary table, which had a 50,000 pound capacity and an Inductosyn scale system. (For what it"s worth, the Knight table"s weakness was it Compumotor electricals. After a couple of years we replaced the Compumotor equipment, and lived well.)

Today"s encoders use LED illumination, which has substantially eliminated the lamp-failure concern. If buying a new rotary table today, even I would choose an angle-encoder position sensor.

For over 50 years, Pfiffner has been developing rotary transfer machines that offer high precision and flexibility, marketing the most cost-effective solutions for high-volume workpieces. Thanks to our solution-oriented approach, well-developed expertise in the market, and a passionate innovative spirit, we"ve established ourselves as a leading partner for innovative industry sectors all around the world. Our success is based on a clear vision: We always remain a leap ahead of the times, ensuring satisfied customers every single day.

RALMTEC came into existence in 1994 following the restructuring of a manufacturing company which had been involved in rotary & linear motion since 1986.

The RALMTEC line is delineated from its competition by its specialization. Many years ago we introduced the first rotary with preloaded crossed roller main bearings (providing immense rigidity in a very low profile) and a spring loaded floating tail bearing (economically maintaining constant solid mesh between the worm & gear).

I recently purchased a 10" Walter rotary table and am now interested in the possibility of using dividing plates with it. I haven"t been able to find any information about whether or not Walter ever made dividing plate sets for their rotary tables. I have been contemplating purchasing dividing plates of another brand that could be adapted to the Walter table but thought I would seek some words of wisdom from some more experienced folks. Anyone here have any suggestions ?

Thanks Richard. That is pretty much the type of thing I"ve been looking at since I"ve had no luck finding anything from Walter. So far, everything I"ve found will require some machining to adapt to my rotary table, but it looks like that"s the direction I"ll have to go.

Ya Ken, I think you"re right. Besides, if a person really wanted to make their own dividing plates (and I don"t !) I"m thinking they"d have to already have dividing plates on a dividing head or rotary table (or CNC capability).

You need to know the gear ratio of the rotary table. The plates need to be drilled and spaced for that ratio, or an even multiple of the table ratio. My .02 worth. Steve

I was just working with my indexer (choice of 3 separate plates) on the rotary table this morning and my table ratio is 90:1 (90 revolutions of the handle will turn the table 360 degrees). When I ordered the plates, they needed to match that 90:1 ratio. The "Tables" I use to figure out which plate to use and which holes to choose, state right at the top of the page, that the tables are for a 90:1 ratio rotary table.

It"s a 90:1 ratio, so think of the table rotation error (or lack of) if one of the plate holes was off by a thousandth or so. Divide that handle rotation error of .001" by 90...

locomotiveps4 wrote:You need to know the gear ratio of the rotary table. The plates need to be drilled and spaced for that ratio, or an even multiple of the table ratio. My .02 worth. Steve

Thank you for all of the input. I"m glad I asked the question. For some reason I guess I was assuming all rotary tables operated with the same gear ratio, but it"s obvious to me now that they don"t. My Walter table is a 120:1 ratio (one handle rotation equals three degrees of table rotation). So, if I"m thinking correctly, it seems that plates (and charts) designed to work with ratios evenly divisible into 120 (or 360 for that matter) should work. Am I thinking correctly ???