email: tony@lathes.co.uk
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Aciera F4 Precision Universal Miller
F4 Home Page   F4 Page 2

Handbooks and Maintenance Manuals are available for the F4

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High-speed Vertical Head; this used a two-speed, 1400/2800 r.p.m. 0.75 h.p. motor that provided eight speeds of 500, 700, 1000, 1400, 2000, 3000, 4000 and 6000 r.p.m. The spindle, fitted with an ISO-30-M12 or ISO-30-1/2" nose, was able to take a collet chuck, had 3.125 inches of travel and was fitted with both a quick-action lever and fine-feed handwheel.

The Simple High-speed Vertical Head had a 0.5 h.p. 2,800 r.p.m. motor that gave four V-belt driven speeds of 1000, 2000, 4000 and 6000 r.p.m. and a quill moved by a quick-action lever through a rather short 2.375 inches (60 mm) of travel.

A more complex dividing head was also available - the Universal Inclinable. With the same range of nose fittings as the standard head, this 4-inch (100 mm) centre height version had a body that could be rotated from horizontal to vertical. A 24-hole indexing plate was fitted as part of the standard specification, as was a set of three indexing plates.

Power-feed unit to provided a spiral indexing facility (used in conjunction with the Universal Milling Head). This employed a train of gears contained in a cast box with machined-in T-slots with a drive taken from the table's horizontal feed shaft - the gear set comprising wheels of: 24, 24, 28, 32, 40, 44, 48, 56, 64, 72, 86 and 100t.

A view of the Inclinable Tailstock, Inclinable Dividing Unit and the Spiral Milling Attachment being used to machine a reamer

Power-driven Inclinable Universal Dividing Head being used in conjunction with the Universal Milling Head

A very much more complex and versatile dividing apparatus was thee Co-ordinate Rotary Table: this beautifully-made and heavy unit (176 lbs/80 kg) consisted of a rotary table, with worm drive plus and indexing-plate facility, mounted on an angle plate for direct fixing to the F4's vertical table. Integral with the rotary element was a compound slide rest that carried a 11.75" x  8.625" (300 x 220 mm) table with three T-slots. X and Y feeds were both 4.75" (120 mm) a travel that, although limited, was sufficient to allow the precise rectangular and polar positioning of small workpieces in relation to the spindle axis. Also shown is the Centering microscope.

Slotting head and the 46 lb (21 kg) 15.75" x 8" Vertical Plate with eight T-slots - an especially
useful item designed to carry various combinations of rotary table, dividing heads and special adaptors.


Handbooks and Maintenance Manuals are available for the F4

F4 Home Page   F4 Page 2

Aciera Home   Aciera F1   Aciera F2   Aciera F3   Aciera F5   Aciera F12

Aciera F4 Precision Universal Miller
email: tony@lathes.co.uk
Home   Machine Tool Archive   Machine-tools Sale & Wanted
Machine Tool Manuals   Catalogues   Belts   Books  Accessories