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Connoisseur Specification

SUPER 7 CONNOISSEUR, Vari-Speed, belt driven, back geared, screw cutting, bench mounting, centre lathe - 89mm (3.1/2") centre height x 475mm (18.3/4") or 780mm (30.3/4") between centres, with Headstock spindle bored 26mm to clear 25.4mm (1") and incorporating a safe reversing feature. The spindle nose is precision bored and ground 4MT. Imperial model with 10TPI cross slide and top slide feedscrews and nuts, inch graduations on the tailstock barrel and leadscrew handwheel; or Metric model with 2mm pitch cross slide and top slide feedscrews and nuts, metric graduations on the tailstock barrel. the beds are not hardended but are brand new never been used before

The lathe is fitted with a quick change screw cutting gearbox, which in conjunction with the 8TPI leadscrew gives 24 imperial/inch threads and 24 feeds; a thread dial indicator is fitted to the apron. (For metric, BA, odd threads and pitches, the optional 1481/1 Metric Conversion Kit will be required).

The machine is fitted with a countershaft clutch unit. A plain taper front headstock bearing supports the spindle in radial loading, while a pair of angular contact ball races at the rear provides support for axial loads. The spindle nose is threaded M42.5 x 2mm pitch. An indexing plunger can be engaged with the 60T bullwheel to provide simple indexing of the spindle, up to 120 divisions. Variable speed spindles from 26-3000rpm are achieved in three distinct speed ranges, by a two speed drive from countershaft to headstock spindle and a back gear reduction. Both primary and secondary drives are fitted with Poly-V belts. All drive guards are secured with ¼" turn latches opened by a special square drive key.

The carriage features power cross feed (facing), a tee slotted cross slide, and the top slide swivels 360°. Both cross slide and top slide feedscrews are fitted with adjustable micrometer dials. The cross slide feedscrew is fitted with a needle thrust bearing to increase sensitivity.

The tailstock is a self-ejecting type, and the barrel feedscrew has a 3 start thread to give rapid movement. The tailstock fitted to this machine is the rack-operated type. This allows for rapid repetitive drilling operations. The barrel is precision bored 2MT. The tailstock body can be set over on its base in either direction, to turn long, shallow tapers.

The electronically controlled variable speed inverter control features no-volt release and thermal overload protection and only requires a 230V, 1PH, 50/60Hz power supply, with fuse protection of 10 amps from the customers supply. A 10 turn potentiometer gives sensitive speed control and is accompanied by an electronic tachometer with digital display. Power inlet is via a CEE 17 plug, with 3 metres H07 insulated cable, for 230V, 1PH, 50/60Hz AC supply.

This Connoisseur lathe has also been fitted to a DRO system. These are new attachments, so if you would like a Connoisseur with this kit, there may be a waiting time.

Machines can be supplied for either bench mounting or fitted to a heavy duty industrial stand. This particular machine was fitted to a custom-built cabinet, supplied by the customer.
The Connoisseur Lathe

Headstock and Carriage

New DRO Kit

Headstock and Gearbox