The 45°and 60° metal hopper silos model CI are used in mills, in feed mills and in storage plants where the complete emptying of silos is necessary but it should be performed without the aid of mechanical conveyors or operators.

They can be even used to store products with difficult flowing since the hopper facilitates it.

The discharge cone is made of Z600 galvanized sheet.

CI silos are available in many versions, from 120 to 2400 m2.

By the way other sizes can be easily required. The silo is designed in compliance with EUROCODE EN-1991-4 standards.




The roof is 30° inclined and is composed of hot-galvanized trapezoidal sheets with Z600 coating; thanks to reinforcement bars it can  burden snow loads in addition to the loads generated by the conveyors and catwalks.




The cylinder is composed of corrugated metal panels (called sheets) in S350 GD structural steel (UNI EN10346) with Z600 galvanized coating (equivalent to 600g/m2 of zinc) which guarantees a long lasting weather resistance. The thickness of each sheet is determined by taking into consideration the stress derived from earthquakes, wind, snow in addition to the model itself and its place of installation. Wide silos and silos placed in windy areas are reinforced with windproof rings. The assembly of the sheets is performerd with high mechanical resistance bolts with electronic zinc plating (14 µm) and treated with a passivation process against corrosion. The taw washers used, moreover, are certified in compliance with the food regulations. The joints between the sheets are sealed with a cord.



The unloading hopper placed inside the silo is 45° or 60°  inclined and it is composed of galvanized modular elements bolted together with high resistance screws with rounded head to ease the flowing of products. 

An internal ventilation cone can be inserted in the hopper.

The internal metal hopper, thanks to a hooking system patented by Mulmix, can be adjusted at different heights from level zero, this allows to add machines such as conveyors, dosers or scales.






The cylinder is externally reinforced with columns of S350GD structural steel uprights (UNI EN10346) with omega section.

The thickness of the uprights is designed by taking into consideration the model of the silos itself and the design standards used (laws, place of installation, loads, seism, wind and snow).






CI silos are supplied as standard with the following accessories:

• a hatch on the roof for checking the ensiled cereal

• a removable inspection panel on the unloading hopper

• a circumferential antibird net positioned between the roof and the cylinder

• a hopper entrance



Provided on specific customer requests or according to specific needs of the plant

CI silos are supplied as standard with the following accessories:

• maximum and minimum level sensors

• motorized shutter

• motorized air extractors

• ventilation systems

• vertical ladder with protections and stirrups

• ladder on roof with sides and circular platform

• hanging catwalks to support loading conveyors and for inspection

• support structures for catwalks

• catwalk descents

• on specific customer request the roof can be painted with custom colors.


Hereafter are described the management modalities of the website in relation with the users’ personal data of Ophicina s.r.l., company that manages the website and it aims to described in the most detailed way the modalities of treatment.

This information is provided - also in pursuance of Section 13 of Legislative Decree no. 196/2003 -  to any entity having to do with the web-based services that are made available by our website.

Afterwards, is given information about the data, the modalities through which Ophicina s.r.l. manages these data and the ones through which the interested people, the users, can exercise their rights according to the law.

The information provided is also based on the guidelines contained in Recommendation no. 2/2001, which was adopted on 17 May 2001 by the European data protection authorities within the Working Party set up under Article 29 of European Directive 95/46/EC in order to lay down minimum requirements for the collection of personal data to guarantee the loyalty, legitimacy of these practices (in accordance to Art. 6,7,10 and 11 of the 95/46/CE directive).



The Owner of the treatment of personal information acquired by visiting our website and any other data used for the administration of our services is Ophicina Srl, Via I Maggiom 2 – 35010 Curtarolo PD – Italy. 


Those subjects who supplied their personal data have the following rights, according to 
Art. 7 of Legislative Decree no. 196/2013, have the right to obtain confirmation of the existence or non-existence of their personal data, to know their content and origin, verify their correctness or ask for integration, rectification or modification.

The subjects to which are referred the personal data, have the right to ask for the cancellation, transformation in anonymous or block the data treated violin the low, and oppose, for legitimate reasons, to their treatment.

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The treatments related to the web services of this web site [physically hosted at Aruba S.p.A. (“] are registered in the above mentioned headquarter of the Company Owner of the Treatment and are treated only by employees, co-operators or shareholders of Ophicina s.r.l. responsible for the treatment, or by other users responsible for periodical maintenance procedures.

None of the data communicated through the web site is communicated or diffused.

The personal data given by the users that require services, are used only for the purpose of carrying out the service required and are not transmitted to third parties, except in case the transmission is strictly necessary for law reasons or strictly related to the fulfilment of the requests.

Specific purposes, related to the single treatments are detailed in the offer of the various services given by the Company.

In correspondence with every single offer, in fact, the user will find specific information on the treatment of personal data, according to Art. 13 of the Legislative Decree 196/2003.

This information is in any case inspired by the principles contained in the Company Privacy Policy.


Web navigation data

The information systems and the software procedures used for the functioning of this web site acquire, during the normal utilisation, some users’ personal data and the transmission is implicit in the usage of the communication protocol of Internet.

It is information that is not collected to be associated to identified interested people, but for their implicit nature they can, through elaborations and associations with data owned by third parties, permit the identification of the above mentioned users.

In this category of data are included, the IP addresses or the name of dominion of the computers used by the users who connects into the web site, the address URI (Uniform Resource Identifier) of the resources requested, the time of the request, the method used during the request to the server, the dimension of the file received as a reply, the numeric code with the status given by the reply of the server (successful conclusion, error, etc.) and other parameters linked to the operative system and the information environment of the user.

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Data given voluntarily by the user.

The sending of e-mails to the e-mail addresses recorded in this web site leads to the acquisition of the sender’s address, needed to reply to the requests, and of other eventual personal data inserted in the body of the message.

Specific synthetic information will be reported or displayed in the pages of this web site eventually predisposed for particular services on demand.

We invite our users, in their requests or messages, to send personal information or data of third parties which are not necessary, we advice to use fantasy-based names.



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