email: tony@lathes.co.uk
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VEB Prazi & Prazimat Lathes
An Operation & Maintenance manual is available for this lathe.
Hobbymat Home Page


Early version of the Prazimat DZL

Besides the better-known "Hobbymat" another machine by VEB was the Prazimat DZL (possibly renamed for other markets including Saupe & Sohn and the abbreviation Prazi SD). It was made in both 90 mm (3.5") and 100 mm (4") centre heights with 400 mm (17.5") and 500 mm (20") between centres and designated as the Models 180 x 450 and 200 x 500 (its also possible that a 450 mm version was offered). Apart from capacity, the two machines appear to have been mechanically identical with exactly the same spindle speed and screwcutting ranges. When new this was, for an "East German" machine a relatively expensive proposition and cost, in 1989, (for the DZL200) 1450 complete with motor, standard accessories and a 100 mm 3-jaw chuck. This compared to 1920 for a similarly-equipped Myford Super 7- but the DZL's price did reflect a very useful specification that (unusually for so compact a machine), included a headstock spindle running in taper-roller bearings with a 20 mm bore, a No. 3 Morse taper; a wide, T-slotted cross slide and power cross feed. Six spindle speeds were provided; starting from a rather high bottom rate of 63 r.p.m. and then 125, 250, 400, 800 and 1600 with a high-speed attachment (an alternative motor pulley and belt) that added two further speeds of 1250 and 2000 rpm. However, for model and experimental engineers it would have made more sense to offer an alternative slower speeds of 25 and 40 rpm. Unfortunately, most versions appear to have been fitted with a DIN 550217 spindle nose, a European standard that provides safety when run in reverse but causes problems in the UK and USA when trying to source replacement backplates and faceplates. Of the flat and inverted V-way type, the bed was heavily built with both transverse and diagonal web bracing between front and back inner walls. The 0.55 kW motor was mounted neatly at the back of the headstock, on a swinging bracket, and drove to the helically-geared spindle with a single V-belt.
Fitted on the end of the leadscrew was a two-speed gearbox that gave coarse and fine feeds by the lifting and lowering of a lever with the standard changewheel set providing 30 metric threads from 0.1 to 6.5 mm, 37 English pitches from 3.5 to 96 t.p.i and 21 module from 0.1 to 2.0. Some would accuse the makers of over-engineering the combined leadscrew and feed-shaft, where both ends were supported on needle-roller bearings and twin thrust bearings provided to take the end loads. A safety, over-load slipping clutch was fitted to the apron and worked on both power sliding and surfacing feeds; the clutch could also be used to slip the feed when the carriage came up against the bed-mounted carriage stop.
Although the Prazimat was supplied complete with all the necessary electrical equipment, ready-to-run, apart from 3 screwdrivers, three spanners and three Allen keys, nothing else was included. However, a basic accessory kit was available consisting of a direct-mounting 3-jaw chuck, two dead centres of  3 and 2 Morse, a rotating centre, a 13 mm-capacity tailstock drill chuck and an extra open-jaw 17 mm spanner. The lathe occupied an area of 1060 x 580 mm and was obviously based around elements of Austrian Emco design, though no connection with them was acknowledged. Whilst few were sold in the UK, the lathe appears to have found greater success in the USA.
Recent Prazi II Apollo series lathes and milling machines are identical to the current Wabeco models, even to the Model Series designation numbers..

Later models had larger electrical controls, including a large domed-headed safety stop switch,

Compact motor mount and changewheel drive.

The unusually wide T-slotted cross slide was fitted with power cross feed


Hobbymat Home Page

An Operation & Maintenance manual is available for this lathe

VEB Prazi & Prazimat Lathes

email: tony@lathes.co.uk
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