Block 12, Unit 5
Whiteside Industrial Estate
Bathgate, West Lothian
EH48 2RX
01506 635 061
info@fms-scot.co.uk 

Freezing & Thawing

High speed defrosting is offered by Stalam who is a leader in Radio Frequency Defrosting.

Kometos logic controlled thawing technology utilities neat, a direct air flow, refrigeration technology and moisture. The end result is a high – quality product with minimum loss.

Pork, Beef and Poultry Rapid Defrosting with Radio Frequency

Pork, Beef and Poultry Rapid Defrosting with Radio Frequency

In the meat processing industry, more than half of the raw material utilised is frozen: chicken, pork, beef, turkey, etc. This happens to ensure its preservation during transport between farms, processors and consumers. Sometimes the meat is purchased in large quantities when the price is lower, therefore, is frozen and stored for several weeks or months until processing. When meat has to be processed, it is often first tempered or thawed using conventional methods available. These methods introduce a number of difficulties directly related to the heat transfer mechanisms: heat transfer is an intrinsically slow mechanism and, the larger the size of product, the longer is the time necessary for the defrosting process; this introduces a long delay between the removal of the meat from the cold stores and the next processing stage; since bacteria survive at negative storage temperatures, in the slow defrosting process there is a considerable opportunity for bacteria growth in the product; proportionally high drip losses may result from lengthy defrosting time, causing changes in the product texture and leading to an immediate and significant economic loss; it is not possible to speed up the defrosting process by increasing the heating fluid temperature, as this could cause severe deterioration of the product surface; a long defrosting time makes it unavoidable to carry out the process discontinuously (batch operation), resulting in high handling costs; besides, breakage, bruising and other damages to the product may result from such handling. The drawbacks of conventional defrosting methods described above can be avoided using radio frequency (RF) fields to rapidly generate heat volumetrically within the product. The heating process is uniform and controlled, resulting in a significant reduction of drip losses. RF heating method offers flexibility in the production scheduling and is the ideal solution for many tempering, softening and thawing processes. HOW DOES THE RADIO FREQUENCY DEFROSTING WORK? The meat blocks are placed on the machine’s conveyor belt and are transferred through the RF unit (tunnel) passing between an upper and lower metallic plates. These plates (also called electrodes) form an electrical capacitor and the product in between the plates becomes the dielectric element of that capacitor. The electrode plates are connected to a radio frequency generator oscillating at a frequency of about 27 million cycles per second. When the RF generator supplies high frequency alternating voltage between the capacitor plates, the dipolar water molecules of the frozen meat will vibrate and rotate in the attempt to align themselves according to the fast changing opposite plates polarities. This phenomenon causes intermolecular friction, which will in turn generate heat rapidly and uniformly within the whole product mass regardless of its size, weight, shape and thermal conductivity. The amount of heat generated inside the product and the defrosting time are accurately controlled through the voltage applied on the electrode plates and the speed of the conveyor belt. STALAM:save the taste, keep the weight ! from Concept video&communication on Vimeo.   MACHINE CHARACTERISTICS Radio Frequency at 27,12 MHz. Construction in AISI 304 & 316 stainless steel submitted to anticorrosion treatments (passivation, pickling) and shot-peening finish. Protection level IP65: the external protection boxes of the RF generator are made of insulating sandwich-type panels with sheeting and bearing frame in AISI 304 stainless steel. Wide conveyor belt (up to 180 cm) made of certified food-grade rigid polyethylene modules or solid-surface reinforced polyester, depending on the product to be processed. Built-in conveyor belt & tunnel washing facilities and full internal access for cleaning...

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Fish & Seafood Rapid Defrosting with Radio Frequency

Fish & Seafood Rapid Defrosting with Radio Frequency

In the fish processing industry, more than half of the raw material utilised is frozen: squid, mackerel, shrimps, prawns, mussels, calamari, …etc. Seasonal fluctuations in the availability of fresh fish are a serious impediment to the continuous operation of processing plants: it is possible in principle to regulate fish supply discontinuities by freezing, without significantly impairing the quality of the final product. When fish has to be processed, it is often first tempered or defrosted using conventional methods available. These methods introduce a number of difficulties directly related to the heat transfer mechanisms: heat transfer is an intrinsically slow mechanism and, the larger the size of product, the longer is the time necessary for the defrosting process; this introduces a long delay between the removal of the fish from the cold stores and the next processing stage; since bacteria survive at negative storage temperatures, in the slow defrosting process there is a considerable opportunity for bacteria growth in the product; proportionally high drip losses may result from lengthy defrosting time, causing changes in the product texture and leading to an immediate and significant economic loss; it is not possible to speed up the defrosting process by increasing the heating fluid temperature, as this could cause severe deterioration of the product surface; a long defrosting time makes it unavoidable to carry out the process discontinuously (batch operation), resulting in high handling costs; besides, breakage, bruising and other damages to the product may result from such handling; The drawbacks of conventional defrosting methods described above can be avoided using radio frequency (RF) fields to rapidly generate heat volumetrically within the product. The heating process is uniform and controlled, resulting in a significant reduction of drip losses. RF heating method offers flexibility in the production scheduling and is the ideal solution for many tempering, softening and defrosting processes. HOW DOES THE RADIO FREQUENCY DEFROSTING METHOD WORK? The fish blocks or other packages are placed on the machine’s conveyor belt and are transferred through the RF unit (tunnel) passing between an upper and lower metallic plates. These plates (also called electrodes) form an electrical capacitor and the product in between the plates becomes the dielectric element of that capacitor. The electrode plates are connected to a radio frequency generator oscillating at a frequency of about 27 million cycles per second. When the RF generator supplies high frequency alternating voltage between the capacitor plates, the dipolar water molecules of the frozen fish will vibrate and rotate in the attempt to align themselves according to the fast changing opposite plates polarities. This phenomenon causes intermolecular friction, which will in turn generate heat rapidly and uniformly within the whole product mass regardless of its size, weight, shape and thermal conductivity. The amount of heat generated inside the product and defrosting time are accurately controlled through the voltage applied on the electrode plates and the speed of the conveyor belt. STALAM:bring me back to life! from Concept video&communication on Vimeo.   MACHINE CHARACTERISTIC Radio Frequency at 27,12 MHz. Construction in AISI 304 & 316 stainless steel submitted to anticorrosion treatments (passivation, pickling) and shot-peening finish. Protection level IP65: the external protection boxes of the RF generator are made of insulating sandwich-type panels with sheeting and bearing frame in AISI 304 stainless steel. Wide conveyor belt (up to 180 cm) made of certified food-grade rigid polyethylene modules or solid-surface reinforced polyester, depending on the product to be processed. Built-in conveyor belt & tunnel washing facilities and full internal access for...

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Thawing Systems

Thawing Systems

Kometos Oy provides thawing systems for efficient and controlled defrosting of any deep-frozen food products. Thawing equipment is perfectly suited e.g. for defrosting of meat, fish and poultry products. Integrated thawing rooms installed in customers’ premises, thawing containers as well as thawing equipment have been designed and manufactured to ensure processed progress of functions, which in turn translates into high levels of quality and hygiene of handled food products, as well as minimum product loss in the thawing process. If needed the thawing rooms’ capacity can be expanded by additional installation of stiffening equipment. BENEFITS OF FINNCOLD THAWING SYSTEMS: 1. Wide range of applications The Finncold thawing technology is perfectly suited for controlled defrosting of deep-frozen food products 2. High-quality thawing process The PLC-controlled Finncold thawing technology utilises heat, controlled air flows, cryotechnology and humidity. The end result is a high quality product with minimum losses. 3. Fast and controlled thawing process The thawing programme developed by Kometos ensures a fast and controlled thawing process. The thawing process is controlled by temperature sensors. 4. Tested thawing method Only high quality components, tested in accordance with our plant’s quality system, are used in the Finncold thawing method. 5. Hygienic thawing process Only indoor air is used in the Finncold thawing process. Furthermore, thawing rooms and thawing containers are manufactured of moisture resistant and easily cleaned ST elements approved for foodstuffs, which allows guaranteeing hygiene during the defrosting process. 6. Storage mode Following the completion of the thawing process the Finncold thawing system automatically switches into the storage mode, keeping food products at the desired temperature. Moreover, thanks to the timed thawing programme the thawing process can be activated at a desired time. 7. Versatility Finncold units may be set up as thawing room solutions or as thawing containers outside the production facility. It is also possible to set up a thawing equipment solution in the customer’s existing premises. Furthermore, a thawing room solution can be provided as a drive-through...

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Batch Freezer for discontinuous cooling, freezing and surface hardening

Batch Freezer for discontinuous cooling, freezing and surface hardening

Cryogenic Freezing Cabinets Cryogenic batch freezers use liquefied carbon dioxide (LCO2) or liquefied nitrogen (LIN) for discontinuous cooling and freezing. Controlled injection of the cryogenic gas lowers the temperature in the cabinet as the gas immediately evaporates. The latent heat of evaporation is the main source of cooling energy. Fans spread the gas in the cabinet in a controlled way and efficiently transfer the cold to the product’s surface. Applications Cryogenic batch freezers are used for discontinuous cooling, freezing or crust-freezing for a wide range of products.  Normally the operator loads the product onto trolleys equipped with wheels, before pushing them into the freezer. Applications can be found in the food industry, the pharmaceutical and metallurgical industry. Features and Benefits Although Dohmeyer’s batch freezers exist in standard dimensions, we can design tailor made cabinets that suit the specific needs of any individual application. Dohmeyer’s batch freezers have walls with 140 mm of high performance thermal insulation. Thanks to vacuum insulation the floor is very low (26mm), with the entrance ramp integrated into the floor. Technical Data Ask for our technical...

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Water Defrosting

Water Defrosting

Overview Fish defroster is designed for frozen fish block or IQF product defrosting in water. Water defrosting minimises weight loss in defrosting operation. Water defrosting is used when high capacity defrosting process is needed. Frozen fish blocks are manually loaded in  the defroster in its whole length. If fish is defrosted in boxes, fish together with the boxes can be put into water. Boxes are then removed when the fish is separated from the box surface. Frozen fish blocks are defrosted in warm water and air flow. Defrosted fish separates from the block and fall onto the conveyor belt which transports it out of the defroster to the next technological unit. Water temperature and water level is regulated automatically with the help of PLC. For device operation the customer must provide electricity, water, hot steam and drainage. Main benefits • Easy fish loading – it is possible to load fish with crates and remove creates afterwards • Easy cleaning – due to hydraulic lift • Ergonomic operation.   Technical Specification Performance Up to 2400 kg/ for double defrosting line Defrosting ambience Warm water, forced water circulation, forced air flow Fish infeed Manual Water heating source With steam   Equipment dimension (LxWxH) Double Line Equipment dimension (LxWxH) Single Line   9600 x 4400 x 2300 mm 9600 x 1800 x 2300 mm Number of operators 1 for each defrosting line Electrical power 3,5 kW for each defrosting line   Processing Capacity Raw material defrosting capacity Single water defrosting line Up to 1200 kg/h Double water defrosting line Up to 2400...

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CryoRoll for IQF foodstuffs for continuous freezing of free rolling products

CryoRoll for IQF foodstuffs for continuous freezing of free rolling products

Cooling and mixing Rotary drum freezers consist of a sloping cylindrical drum, which is rotating around its axis. Product and cooling medium are loaded continuously at the highest entrance point of the drum. By the rotating movement, both are intensively mixed while, at the same time, sliding to the lower exit of the drum. The stirring movement and the mixing prevent products from clumping together. Special paddles can be built in to ensure this happens. Both liquid nitrogen (LIN) and liquid carbon dioxide (LCO2) can be used as cooling liquid. Exhaust fans at inlet and outlet extract the residual gases. Product infeed Rotary drum freezers require continuous input of product. Dohmeyer can propose buffer hoppers and supply conveyors to convert discontinuous product flows into continuous input. Applications Rotary drum freezers are best used for IQF freezing of free rolling, mostly small products. They are perfect for products consisting of separate pieces.  Applications in the food industry are abundant: rotary drums freeze individual pieces (granules, crumps, cubes.. ) of fish and meat, pasta, vegetables and precooked dishes to IQF quality. When wet or sticky products need to be frozen, we can cover the inner wall of the drum with a non-adhesive coating such as PTFE. Unique double drum design For certain products it is best to use a double drum:  the first, short and fast turning drum serves to freeze the surface of the product, the second, long and slow turning drum freezes the product in depth. Features and Benefits Dohmeyer’s cryogenic rotary drum freezers can be tailor made. Inclination, rotating speed, baffles,… can all be adapted to the specific needs of the customer. Rotary drum freezers are compact and often take up less space than other types of IQF freezing systems....

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Coating Tumbler

Coating Tumbler

Cryogenic sauce and seasoning coating Cryogenic Coating Cryogenic tumblers are used to envelop a substrate with a sauce or another kind of coating. The end-product of the batch process is an IQF (individually quick frozen) added value product. Applications Manufacturing of convenience food and ready meal components. The substrate can be seafood, vegetables, meat, potatoes, pasta or other free rolling products. Features and benefits Cryogenic coating is fast, flexible and efficient. The process can be fine tuned to prevent breakage and to inhibit the production of fines. Due to special internal parts, the discharging of the tumbler is swift and no segregation occurs (within 36 seconds). A programmable logical controller, able to memorize several recipes, guides the tumbler through the different sequences of the coating process. Thanks to specially designed nozzles and injection systems, the amount of coating can be up to 200 % in weight. Tumblers exist in nominal batch sizes of 50 to 800 kg (500 liter to 8800 liter)....

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Multibelt freezer

Multibelt freezer

Linear freezing tunnel with 3 belts on top of each other Cryogenic multi-belt freezers use liquefied carbon dioxide (LCO2) or liquefied nitrogen (LIN) for continuous cooling and freezing. Multiple superposed conveyor belts move the product backwards and forwards through the freezer. At the end of each belt, the product falls onto the belt below to go back through the freezer. Designs with 3, 7, 9 and 11 levels are quite normal. Controlled injection of a cryogenic liquefied gas, which immediately evaporates, lowers the temperature in the freezer. The latent heat of evaporation is the main source of cooling energy. Fans spread the gas in the freezer in a controlled way and efficiently transfer the cold to the product’s surface. Exhaust fans extract the residual gases. Applications Multibelt freezers are mainly used for two purposes: Applications with high production capacities and/or long residence times, which would otherwise require very long linear tunnels. By stacking multiple belts on top of each other, you can drastically reduce the overall dimensions of the freezer. Applications where available space is limited. The compact design of the multi-belt freezer allows you to squeeze it in, where a single-belt freezing tunnel would not fit. Due to its mechanical complexity, the specific thermal transfer efficiency per m² of belt is always less than that of a single belt freezer. Features and Benefits Although Dohmeyer’s cryogenic multi-belt freezers exist in standard dimensions, we can design tailor made tunnels that suit your specific needs for any individual application. Compact design, optimized injection of liquid gas, and our own special turbulence fans are specific benefits of Dohmeyer’s tunnels and cabinets. Technical Data Ask for our technical leaflet about Tri-Deck...

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Screw Conveyor for simultaneous conveying and cooling

Screw Conveyor for simultaneous conveying and cooling

Introduction Screw conveyors are not limited to moving products horizontally and upwards; while moving the product, screw conveyors can cool, mix and blend components. As the product moves, it is gently sprayed and mixed with coolant.  Injecting liquid nitrogen droplets or CO2 dry ice into the screw conveyor ensures efficient and homogenous cooling or freezing.  Exhaust fans extract the waste gases. Moving foodstuffs in this way saves time, reduces labour cost, eliminates handling and is more hygienic than conventional methods. Applications Cryogenic screw conveyors can cool or freeze a wide variety of foodstuffs, typically to prepare the texture and temperature of products before grinding (coffee, herbs, …).   Conveyors can be used in conjunction with both continuous and batch production systems. Features and Benefits Dohmeyer’s cryogenic screw conveyors are tailor made.  The conveyor housing can be opened for easy access and cleaning of the auger.  Special paddles can be added to the housing to ensure a homogeneous mix of the product. Technical information Ask for our technical...

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Rotating Cabinet for more homogeneous discontinuous cooling or freezing

Rotating Cabinet for more homogeneous discontinuous cooling or freezing

Cryogenic Freezing Cabinets Cryogenic batch freezers use liquefied carbon dioxide (CO2) or liquefied nitrogen (LIN) for discontinuous cooling and freezing. Controlled injection of the cryogenic gas lowers the temperature in the cabinet as it immediately evaporates. The latent heat of evaporation is the main source of cooling energy. Fans spread the gas in the cabinet in a controlled way and efficiently transfer the cold to the product’s surface.The product trolley is locked onto a rotating platform, which ensures even and homogenous cooling of all sides of the product. This rotating trolley is important where a perfectly homogeneous product is required, as in the production of cured meat, fish and smoked products. Applications Crust freezing is an important use for cryogenic batch freezers in the food industry, for example in preparation for subsequent slicing. However, many producers also use them for normal freezing and/or cooling of meat, fish, prepared meals, bakery products, etc., because the total process cycle can be shorter than in a fixed trolley freezer, allowing higher productivity and production capacity. Features and Benefits Although Dohmeyer’s freezers exist in standard dimensions, we can design tailor made cabinets that suit the specific needs of any individual application. Dohmeyer’s batch freezers have walls with 140 mm of high performance thermal insulation. Thanks to vacuum insulation the floor is very low (26mm), with the entrance ramp integrated into the floor. Technical Data Ask for our technical brochure about Rotating...

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