Speidel FO1/FO2 variable capacity tanks up to 910 litres

FO1 and FO2 variable capacity stainless steel tanks are manufactured by Speidel, who have been producing high quality tanks for the wine & beverage industries for over 100 years. Speidel tanks are used by successful drink producers around the world.

Variable capacity tanks are useful if you need capacity flexibility and/or you are unsure of the harvest you will have. The inner float lid can be lowered/raised as required.

Speidel FO1 and FO2 tanks (up to and including 2000 mm in diameter) come with the Speidel 25 year guarantee, provided they are used inside. FO tanks are easy to clean, have a dished bottom with V channel for total draining, are supported on three legs, and have a racking outlet. The inner float lid with a stainless steel airpump with pressure gauge, and an airlock & bung is an optional extra. Many other accessories are available.

Capacities available:

  • 220 litre
  • 300 litre
  • 530 litre
  • 675 litre
  • 910 litre

These tanks are supplied to order. Please call us on 01404 892100 to discuss your tank requirements.

If you require variable capacity tanks in a hurry, we try to keep at least one size of FO tank in stock and occasionally have used tanks to offer, so please contact us to ask. The tanks we routinely keep in stock are the variable capacity flat bottomed tanks (type BO) - see below.


Speidel variable capacity tanks are open-topped tanks with a floating inner lid, which is sealed by an inflatable tube to exclude air - useful if you need capacity flexibility and/or you are unsure of the harvest you will have.


  • Fermentation
  • Can also be used for mixing / blending

Ideal for

  • Wine
  • Cider
  • Beer (NB These tanks are pressureless)


  • 25 year Speidel guarantee!
  • Easy clean!
  • Manufactured from high quality Thyssen Krupp (now acquired by Outokumpu) stainless steel, which is generally thicker than that found on cheaper brands of tank
  • AISI 304 stainless steel as standard (AISI 316 on request)
  • Mirror finish (grade llld 2R) for chemical free cleaning
  • Seamless moulding of panels, providing great strength and reducing welds and dirt traps
  • Bottom panel made from one piece of moulded stainless steel, avoiding dirt traps associated with welded conical plates
  • Continuous, smooth welds, minimising dirt traps
  • Cylindrical
  • V channel extends from beyond the centre of the tank to ensure total draining
  • Bottom outlet without dirt traps and with direct access at front of tank
  • Strong, wide welded stainless steel legs
  • Includes racking point
  • Inner float lid, lid lifting crane and a range of other accessories available

(*) Only applies to FO1/FO2 tanks used inside; NB Other Terms & Conditions apply to Speidel guarantees - please contact us for more information.



  • 220 litre:
  • 3/4" BSP female drain outlet
  • 3/4" BSP female racking outlet

300, to 910 litre

  • 1"BSP male drain outlet
  • 1" BSP male racking outlet


  • DIN40 male drain outlet
  • Reinforced racking port with DIN40 or DIN50 male racking outlet


  • 220 litre: 550mm diameter; 1382mm high; 17mm wide rim
  • 300 litre: 630mm diameter; 1384mm high; 17mm wide rim
  • 530 litre: 820mm diameter; 1361mm high; 42mm wide rim
  • 675 litre: 820mm diameter; 1620mm high; 42mm wide rim
  • 910 litre: 820mm diameter; 2109mm high; 42mm wide rim


View the range of Speidel tanks from their stand at an exhibition:


Speidel Tank-und Behälterbau GmbH are globally renowned tank manufacturers. They have been manufacturing high quality beverage tanks for over 100 years. Speidel tanks are used by successful wineries and drink producers around the world and we are proud to be their UK agents.

Here are some of the reasons why we choose Speidel for stainless steel beverage tanks:

The Stainless Steel

Speidel tanks are manufactured from high specification Outukumpu stainless steel. Outukumpu are global leaders of stainless steel production, were founded in 1910 and acquired ThyssenKrupp in 2012. The steel is manufactured to stringent German standards and is generally thicker than that found on cheaper brands of tank.

Easy Clean Features

Speidel’s innovative in-house design and in-house high-tech production methods result in tanks which are incredibly easy to clean: * Mirror finish (certified grade llld 2R) for chemical free cleaning, reducing labour costs, chemical costs and damage to the environment* Seamless moulding of panels, door opening and door, reducing welds, minimising dirt traps and tartrate crystal formation, while maintaining great strength * Continuous, smooth welds, minimising dirt traps and tartrate crystal formation Watch the Speidel Tank Advantages video here.

Made in Germany

As Speidel state 'for us "Made in Germany" is not just an empty phrase, but a lived principle'. They manufacture their tanks exclusively at their high-tech factory in Ofterdingen, Swabia/Germany and their tanks are designed to last a lifetime when treated correctly. They use certified high specification stainless steel (as above), impeccable production methods (as above) and have a highly trained production crew.


Speidel non-pressure stainless steel tanks up to and including 2000 mm diameter are guaranteed by Speidel for 25 years. *NB conditions apply, i.e., one of which is that the tanks must be stored indoors; please contact us for clarification and more information.*

Competitive Price

The price of Speidel tanks is surprisingly competitive for the level of quality.


Speidel won the Vinitech Citation Innovation award for the design of their red wine mash plunger system, which ensures gentle processing, high colour and aroma extraction, low sludge content, and enables preset programming of immersion and interval times.


Speidel generate 25% of their energy needs on-site via their photovoltaic system, which enables them to avoid approximately 270 tons of COâ‚‚ annually. The remaining 75% is powered by 100% COâ‚‚-free green electricity. As a result, there are no COâ‚‚ emissions for the production of a Speidel tank.


Download our Speidel flier here. Access the Speidel catalogues here.

What we offer...

As Speidel's exclusive UK agents, we have been supplying Speidel tanks since 1996. * We give you qualified advice based on your specific requirements, helping you to choose the right tank for your application * We will give you a clear specification with a confirmed price * We ensure you are supplied with the correct tank fittings/accessories for your application, enabling you to start using your tank without delay * For bespoke tanks you will be supplied with tank drawings prior to manufacture for your peace of mind * If you need to kit out a complete cellar with tanks, in conjunction with Speidel we can provide cellar layout diagrams* If temperature control/chilling of your product is required, we offer and install the Kreyer range of temperature control e

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