Nichols Horizontal Hand Mill Special Configuration 3 Phase 230/ 460 Volt Coolant

Description: This Nichols hand mill is complete with a special configuration, coolant system, and is wired for 230/460 volt - three phase. It also comes in its own steel box where it’s protected from dust. Appreciative Description: Manufactured by W. H. Nichols & Sons of Waltham, Massachusetts( the spiritual home of many early American precision machine tools) the Nichols "Hand Milling Machine", as it was termed in advertising literature, was a robust, beautifully-built tool intended for "volume production of small parts at low cost." The machine was available in a range of models: Standard, Production, Heavy-duty Production, Tool Room, Duplex, Twin-mill and Semi-automatic. The "Standard" was the basic machine and fitted with a table 20 inches long by 6.75 inches wide with 10 inches of longitudinal travel operated by a lever-feed; the 7 inches of cross feed and 13 inches of vertical travel were generous for a small miller and both driven by screw feeds. The "Production" was identical in construction and specification to the Standard, with the sole exception of a lever-operated traverse feed, while the "Tool Room" (see lower down this page and here) was supplied with a table 10 inches longer than standard - with an extra 9 inches of travel - and equipped with both lever and screw-feed to the longitudinal movement. The "Duplex" was fitted with two independent spindles and available in two models: one had the spindles facing each other on a single axis while on the other they were parallel, one above the other, and able to be adjusted so that they could be brought to within 3.75" - or moved until 14.375" apart. The "Semi-automatic" was a standard machine but equipped with a pneumatic longitudinal feed which could be arranged for simple cycle jobs where the table could be rapidly advanced from its start position, slowed to a rate suitable for the cut to take place and then returned at high speed to repeat the process; the "Heavy-Duty Production" was a late edition to catalog and featured a longer table, strengthened castings and the ability to cut more metal in a given time than the standard production model. The final machine in the range, the "Twin-mill", was a very special, automatically-controlled machine which employed two independent heads mounted one at each side of the table. Although the stand, main body, knee and table were of conventional design, the Nichols employed (for a horizontal miller) an unusual arrangement whereby the entire head assembly, counterbalanced by the weight of the motor and complete with main spindle and overarm, could be moved up and down over a distance of 4.5 inches. The movement, on hand-scraped dovetail slides, was under the sensitive control of a long lever acting through rack-and-pinion gearing while a cleverly-engineered sliding pivot between motor and head allowed the belt to remain at a constant tension no matter what the position of the head. The drive system was simple, but superbly engineered, with the input pulley overhung on the end of the main spindle and driven directly from an electric motor fitted with a speed-reducing gearbox. The standard drive used a pair of one-piece, 5-step, cast-iron pulleys which, because alternative sizes were available to increase the top speed to as much as 5000 rpm (and the bottom speed to as low as 50 rpm,) were held to their shafts by a split, tapered bush retained by three set screws this making removal and replacement a relatively painless operation. The substantial iron pulleys were (claimed the makers), heavy enough to produce something of a flywheel effect and so smooth out the drive. A classic, quality machine of its kind with a custom add on coolant system and its own custom skid and steel sealed container when stored. Shipping dims- 76”x48”x48” - 2500 lbs. { Ships from 75852, Midway, Texas } Enquire for a quote by message at the zip code above. Please give us 1-2 business days handling time to have this ready to ship and unit will be cleaned professionally previous to arrival. Message us if you have any questions or requests and thank you for looking. Used in a professional environment.

Price: 900 USD

Location: Midway, Texas

End Time: 2025-01-20T03:18:55.000Z

Shipping Cost: N/A USD