Floor-standing, hand-operated:  many years ago I found that the cheap Italian models, intended for amateur use, do not insert corks without some damage. The more expensive alternatives require much less effort to use and will perform well for many years. They also have four compressing jaws rather than two or three of some cheaper models. For anyone who sells their wine I would advise using one of these:-

  SSP - Model PL-2:
all stainless steel, except for the four white hard-plastic compressing jaws, 690 Euros (£627)
excellent value, with double guide shaft, for natural or synthetic corks, diameter 19mm to 26mm and up to 49mm high, for bottles 240mm to 370mm high, maximum 110mm diameter, max 30mm outside diameter of neck, minimum 17mm inside diameter of neck:-

   There is also a model for Magnum bottles (150cl), which need larger corks - 26mm to 39mm diameter and up to 59mm high, for bottles 400mm to 600mm high, maximum 170mm diameter, max 43mm outside diameter of neck, minimum 22mm inside diameter of neck, 790 Euros (£718)

Better still the new air-assisted SSP model PL-3 CHAMPAGNA, 1530 Euros (£1390), can be used for both wine bottles and champagne bottles !

  A-D Swiss - Model Rapid 44:
a top quality heavy duty commercial corker with four brass jaws, and a precision guide for cork insertion, 1299 Euros (£1180)
for corks diameter up to 35mm and up to 58mm high, 
for bottles 200 to 400mm high, maximum 200mm diameter, minimum 18mm inside diameter of neck:-

  A-D Cork extractor:

Semi-automatic:  details on request, secondhand machines may be available.

Prices shown are exclusive of Vat.
Delivery will usually need to be charged at cost.

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