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Moving and Hoisting a 2000-Pound Bridgeport Milling Machine . ... Some have claimed that this hole is for lifting the ram alone during assembly, but Bridgeport's own documentation for the British version shows this is an approved method for lifting the entire machine.
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History. The original corporation was founded in Bridgeport, Connecticut and started selling its machines in 1938. It became famous in the following decades for small- and medium-sized vertical milling machines, with an iconic form of quill-equipped multiple-speed vertical milling head with a ram-on-turret mounting over a knee-and-column base.The American Precision Museum's biography of ...
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By way of establishing my credentials to make such statements, I owned an H.F. Round Column Mill Drill for nearly ten years and recently replaced it with a Taiwanese Bridgeport Clone. The difference has been a real eye-opener to me.
Knee Mills. The Bridgeport Series 1 Standard Mill – the original, all-purpose mill – has been the "real thing" in milling, drilling, and boring for metalworking shops throughout the world. Today, the Series I Standard continues to fulfill the industry's need for an accurate, reliable, and versatile mill.
Apr 22, 2014· Have a used Bridgeport Round Ram Milling Machine for sale. It does not come with a vise or a phase converter. It is a three phase 220 power machine. The power feed motor is off of it, but comes with the machine. This is a tutorial online that shows you how to install a modern power feed that is more that half the weight of this one.
Oct 23, 2018· Bridgeport round ram knee mill machine Hello. First time here, was referred by a frequent follower to give Practical Machinist a couple photos for identification and history if possible. Pictures include serial number 2909 and various view shots, left right center and close up.
Rather less heavily built than the later versions, the original Bridgeport turret milling machine had a lower, more slender column with a storage cupboard in its left-hand side; it also had a distinctive 5-inch diameter round ram with most having a double swivelling yoke at one to take the vertical head end a simple clevis with a round-flange attachment at the other to mount the slotting ...
Bridgeport 1 HP Round Ram J Head Milling Machine, 9" x 42" Table, R-8 Spindle, 3 Phase 220 Volts, Serial #23749 : $1,495.00: B011412: Bridgeport 1-1/2HP Variable Speed Milling Machine, 3 Phase 230/460 Volts, 9" x 42" Table, Bridgeport X-Axis Power Feed, One Shot Lube, Acu-Rite 2 Axis DRO (ABS Button Broken) Serial # 189458 (1978)
The old round ram M-head Bridgeports are the shortest mills that Bridgeport ever made. This one had a 32-inch table (the smallest Bridgeport ever produced) and a 9-inch knee instead of the now more common 12-inch knee. The Bridgeport came with a home-brew 1->3 phase rotary converter. This was an idler style arrangement with a large heavy motor.
May 02, 2008· Board index The Home Machinist! Milling Machines; ... weight of full size Bridgeport and what year was it made. Post by johnyrtnow » Fri May 02, 2008 2:01 am ... Unbolted the head and used the "Y" axis to move the head away from the ram. The head is now resting on the machine table.
Mar 02, 2014· Hello there, Recently one of the machinists offered to sell me his old Bridgeport that he doesnt use anymore. Its a round ram with a J-head on it. He's asking for 1200 which includes the vice, vice rotational base, clamp set, collet set, boring bar set, something that uses carbide inserts +...
One of my goals for this year is to add some real machining capabilities to my shop. I've been in the market for a milling machine since the beginning of the year and when I saw a Bridgeport series II CNC mill pop up on Craiglist for $1000 I decided to jump at it.
Jul 09, 2013· The Home Machinist! ... Time will tell, I really don't want to have to buy the whole package and flip everything besides the mill to get the Bridgeport down to a reasonable price. ... Round ram J-head Bridgeport value? Post by John Evans » Tue Jul 09, 2013 1:01 am
Aug 18, 2016· This is a short slide show of the modifications I did to a badly worn Bridgeport round ram mill.
This has been posted as a manual for the round ram mill, but it seems to be a pastiche of several different manuals, most having little to do with the round ram mill. As of Feb. 2005, there seems to be no complete Bridgeport manual for the round ram mill available online.
The ram can slide back and forth on the turret, ... The first Bridgeport milling machine (serial number 1) is on display at the Museum. [2] » Learn More. Bridgeport round ram weight vs standard mill. A round ram will weight about 1800 or so pounds where the dovetail style machines are in the 2500 ish range. Of course size of table and ...
Bridgeport Series I milling machines. In no event will Hardinge Inc. be responsible for indirect or consequential damage resulting from the use or application of the information in this man-ual. Reproduction of this manual, in whole or in part, without written permis-
Jun 04, 2012· I am looking at buying a round-ram Bridgeport mill and am seeking advice before purchase. I am on the fence about buying this machine or holding out for a mill with a dovetail-ram. We have never had any heavy industry here and so machining equipment is few and far between. This mill .
May 29, 2019· I am looking at this Bridgeport round ram with I think a J head on it in New Jersey. I think it is a little overpriced but not sure. I believe this pre-dates the series 1 which makes me think its over priced. Does the fact that the bench grinder is right next to it concern anyone? Its over 2 hours ...
You are here: Home / How Old Is My Bridgeport Milling Machine? How Old Is My Bridgeport Milling Machine? ... If you are looking on the numbers on the top of the knee, I would guess your mill is a round ram (M head model) dating from 1944. I don't know why there is no prefix, but I am trying to put together a way to decode the prefixes. ...
Jul 27, 2014· The mill was originally configured with a Variable Speed head. There was a problem with the head when I bought the machine, rather than spend money to repair, I replaced it with a new J-head I already had. I have several round ram machines and had planned to install the new head on one of these machines. The S/N of the Bridgeport is: 43440587.
The Problem: A Bridgeport mill (old cylinder ram model [under construction - meanwhile, here's the patent] with an M head and the little 32 inch table) has to be moved from Gold Machinery, in Pawtucket, Rhode Island, to the middle of Massachusetts, a matter of a trifling 60 miles or so, and moved into a residential cellar which lacks any civilized access to ground level.
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