troyke rotary table made in china

As mentioned in a previous thread regarding used machinery though, there"s a lot of caveat emptoring in the used machinery business. You may still want to see the thing before you buy it, although I think any reputable place would take it back if you didn"t like it when you got it. Trouble is, shipping charges on 70 pounds of cast iron add up to a lot of money even if you don"t pay for the rotary table.

I"m looking at new 12" horizontal / vertical rotary tables. I"ve always liked Yuasa equipment, so I did a search for a Yuasa 550-052 rotary table at several of the larger tool dealers.

In MSC, they have both Yuasa and Phase II tables listed. What doesn"t make sense, is the Phase II is more than the Yuasa. So, I looked at Penn Tool Co, and under the listing for the Yuasa, they show a photo of a Phase II table. Then I checked out Travers, and the same thing, a Phase II is shown under the Yuasa listing.

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I have a Jet JTM-830 vertical mill with a 7-inch wide table. Would there be anything wrong with using a 10-inch rotary table? It would hang over a bit, but it seems like it would allow for easier clamping, and machine table movement would allow me to cover the whole table. I obviously don"t want one so large or heavy that it affects the machine, but on the other hand, a 6-inch rotary table seems like it would have too many limitations.

I have a 12" Van Norman rotary table (probably 125lbs+) I use on all our machines, from the Grizzly Millrite copy to the VN 22L. I wouldn"t LEAVE it bolted to the table of the Grizzly, especially run way over to one side, but if the knee won"t hold that up, it probably shouldn"t be called mill. Get a big "un.

The 10" and 12" rotary table is fairly common in shops with standard Bridgeport mill types having a 9" table. The 10" should be adequate and a lot lighter than the 12"s. There are also 8" rotary tables. I doubt weight would be an issue for these smaller sizes.

Your assessment is right on the money. Buy the largest table you are comfortable in handling. I use a 12" and wouldn"t want one any smaller. It"s just too damned hard to make acceptable setups on small tables. If it weren"t for the difficulty of handling the 15" Bridgeport table, I"d have bought that in place of the 12" one I own.

I"d have to admit that the majority of RT setups using toe clamps do eat up the outer 1"+ of the table surface. Thereby reducing the working envelope if no other means of work holding are available.

That"s the one place size can work against you. I have the right angle plate for my Bridgeport, and it"s all I can do to put the rotary table on the mill when it"s mounted to the plate. A lifting device certainly wouldn"t be a bad idea, especially now that I"m older and don"t have the physical strength necessary to handle the table. I guess my advice might be tempered with the comment that it depends on how you"d use your table--------the smaller tables can be easier to use when doing horizontal work, and don"t eat up spindle clearance quite as much.

You could always buy a smaller table and then add an aluminum sub table to it to make it larger. My table is 8" and I plan to make a 12" table top 1" thick. Then you can drill and tap it for clamps or whatever you prefer.

You could always buy a smaller table and then add an aluminum sub table to it to make it larger. My table is 8" and I plan to make a 12" table top 1" thick. Then you can drill and tap it for clamps or whatever you prefer.

That"s an excellent way to extend any rotary table. I have a plate that is about 16" diameter that pins to the center hole of my table for quick setup. I also drilled and counterbored the mounting holes so nothing is above the surface when it"s installed. As you suggest, it"s easy to drill and tap holes as necessary.

This is how that can work. This operation is milling radiused cheek horn slots (to 11"R) on locomotive axleboxes. The "plank" is a piece of 3/4" steel plate picked up as scrap and surface prepped. The DTI at right is placed so as to indicate rise of table and therefore exact depth of cut.

The rotary table is a restored 9" Troyke (ca 1949), a grimey lump picked up for peanuts on eBay but which turned out to be virtually unused under the grunge. I"m not sure of the weight of this but it"s about the heaviest table I"d want to lug around the workshop and keep off the machine and mount it each time I needed to use it.

I think you"ll be happy with the big BP table. When the time comes and you need to do some rotating work on the vertical mount, pick up one of those Chinese made B&S clone dividing heads. They are pretty tight and work well once cleaned up.

In case you didn"t pick it up, the difference between the two is how they make angles. Rotary tables are cranked to degrees, minutes, and seconds, such that a square is 90-90-90-90 and you"re done. The dividing head is a different beast, it divides a circle into large prime numbers and base multiples. For example, a 7-sided polygon on a rotary table is a clusterfrick of 7x 51.428571428571428571428571428571 degrees, or something approximating 51° 25" 42.85714". Not very useful. On the dividing head, it"s stupid simple- divide one circle by seven and you"re done, with perfect precision.

The small part of me that cringes is when something exceptional is facing some degree of destruction. Some things are limited in existing numbers and every one of them that gets altered/destroyed reduces that available quantity regardless of the purpose. I"ve got a 100 year old vise that is still in good condition (now) and several art pieces that are centuries old because someone took care of them. A Troyke ROTAB isn"t an art piece but it"s not too far a stretch to consider it within that realm for a toolmaker.

Troyke super precision, heavy-duty manual rotary tables range in size from 10" to 30" in diameter. The Manual Series features a rigid manual rotary table design and can be mounted horizontally or vertically. These precision manual rotary tables are designed to accept dividing attachments, encoders, variable speed drives and a variety of tooling and workholding options.

Rotary table in market mainly includes 4 kinds of mechanism that is worm gear, roller cam, DD driver and harmonic structure. The following is the introduction:

1. worm gear: it’s one of  the most popular structrue in NC rotary table  because of its irreversibility and costs.The worm is generally made of bronze, but the wear resistance is poor. In order to improve the service life, some manufacturers use the alloy steel.

3.DD motor: it’s the most efficient rotary table with the highest precision. It has the highest precision because it has no mechanical structure, which is directly driven by motor , no reducer. It has high technical difficulty and high price. It is generally used for five axis machine tools.

Depending on the size of rotary working tables, you can find the office rotary table that is suitable for your customers. They have long steel rotary table and work heavy in conjunction with the office rotary table.

There are also torsion rotary tables, such as 3D rotary tables, and evenD rotary tables. These working tables can be used in manufacturing, construction, and home office working tables for people of all ages.

A rotary table is also called a rotary table, it is designed to cut heavy-duty steel, making it a larger product. The advantage of a circular table is that it is possible to cut large objects in a variety of ways, depending on the size and shape of the material it is made of, heavy-duty steel, making it a larger product. The circular table usually is in size but it can also be used to cut laminated or in-ior on heavy-duty steel, making it a larger product.

A rotary table, also known as a rotary table, is a toolbench that is heavy with work equipment, allowing users to cut or grind heavy work equipment on the surface. A rotary table is a wheelbench designed for users to sit or lay on heavy work equipment, allowing users to cut hard or unurfaced work. It is a portable table designed to for heavy work and allowing users to cut large or up holes in the workbench.