The TMW35 allows deep frozen foods to be tempered or defrosted (butter) quickly. It is adapted for products like meat, poultry, fish, fruits, vegetables, cheese, butter, etc… The distinctive feature of the TMW 35 tunnel is the use of the microwave technology to achieve the best tempering homogeneity while maintaining a good microwave efficiency. The very low floor space, the length under microwaves (residence time) and the crossed coupling of microwaves above and below the blocks, are a few examples of the solutions used to conciliate capacity, flexibility, efficiency and homogeneity.

KEY BENEFITS

Profitable: save money by avoiding drip losses
Fast: very short time of treatment, between 5 to 15 minutes
User friendly: easy loading / unloading, colour touch screen HMI
Homogeneous: excellent temperature homogeneity thanks to multiple microwave inlets
Reliable: no need for regular maintenance, except daily cleaning
Hygienic: no bacteriological growth, complies with all hygiene regulations and standards
Flexible: can be used for tempering packed (cardboard, plastic film …) or unpacked food
Compact: small floor footprint
Connected: USB and ethernet connection for remote control

TEMPERING CAPACITIES

The TMW35 offers a tempering capacity between 1 t/h and 1.5 t/h from – 20 °C to a final temperature of – 4 °C / – 2 °C in 95% of the block, which is the optimum temperature for processing: dicing, grinding, cutting, slicing…

The capacity is calculated to temper frozen blocks with standard dimensions 600 mm x 400 m x 200 mm and a weight of about 20 / 25 kg. If fatty products are to be processed, fat ought to be very homogeneously distributed in the block, otherwise the limit temperature for homogeneity is – 4 °C.

The tempering capacity is variable and depends on the final required temperature and on the product (meat, fish, vegetables, fruits, butter, etc. Figures below show these variations. The data in the charts are calculated for the TMW 35 operating at 30 kW power, with ton/toff1 optimum at 95 %, for blocks with regular size and weight 25 kg (600 mm x 400 mm x 200 mm) and for a starting temperature around -20 °C/-18 °C.

The maximum microwave power which can be used in processing is limited by the products and not the tunnel. Recipes power vs. time must be chosen according to the compromise between capacity and homogeneity of heating.

TEMPERING CAPACITY VS. DESIRED FINAL TEMPERATURE

Example: Chicken ≃ 1.8 t/h from -18 °C to -5 °C or ≃ 1.15 t/h from -18 °C to -3 °C. Example: Fatty pork ≃ 2.1 t/h from -18 °C to -5 °C or ≃ 1.5 t/h from -18 °C to -3 °C.

TEMPERING CAPACITY VS. PRODUCT TYPE

Examples: butter (1.8 t/h at -3°C) or beef 60 % lean (1.15 t/h at -3°C) for the same final temperature.

TEMPERING CAPACITY VS. FAT CONTENT

Example: capacity ≃ 1.2 t/h for beef 60 % lean, or ≃ 0.85 t/h for beef 100 % lean from -18 °C to -3 °C

Capacity is highly variable if final temperature is -7 °C or -3 °C, or if meat is lean beef or fat pork. Such variations are linked to physical laws such as for example, latent heat of fusion.

Capacity varies according to the processed product (lean beef, pork…), its fat content and the final required temperature.

All the above charts are calculated for a TMW35 operating under following conditions:
• Power of microwave generator at 30 kW
• Ton/Toff at 95 %
• Blocks or products with regular mass and shape
• Blocks or products regularly placed on the belt
• Starting temperature between -20 °C and -18 °C homogeneous in all the blocks or products

KEY SPECIFICATIONS

ReferenceTMW35
ConstructionCavity: 304 L stainless steel, chain conveyor belt in polyethylene, microwave door with ¼  choke, microwave inlet above and below, automatic loading and unloading. Microwave generator: cabinet is IP55 and equipped with a single 35 kW magnetron, electronic system and boards without any adjustment to make maintenance easier, high reliability.
Tempering capacityDepends on final temperature, product, fat content
Conveyor beltFlat top Intralox principle, width 600 mm, operating height 950 mm Adjustable belt speed. Left to right or right to Left configurations
Max. size of blocks600 x 400 x 200 mm, 30 kg maximum per block Optional maximum height 250 mm
Microwave frequency915 MHz. Other frequencies available according to regulation of each country
Microwave power35 kW maximum, adjustable from 10 kW to 35 kW
HMI Human Machine Interface12″ touch screen, multi-lingual, control of microwave power and belt speed, 50 programmable recipes, tunnel status, faults status, etc… Microwave start, emergency stop, etc.
Specific safetyMicrowave leak detector Smoke sensor: detects a fire, stops microwaves, inject water via nozzles
Voltage & consumption400 V, 3-phase + earth (no neutral), 50/60 Hz, 50 kVA at full power
Cooling waterMin. 30 L/min with differential pressure min. 3.5 bar, inlet water temperature 18 °C to 22 °C, power to dissipate 12 kW; ES 1.5″ gas female Optional: air/water chiller or water/water chiller
Belt washing (option)System for belt washing and drying located near the tunnel output
CleaningWater jet inside the tunnel Evacuation under the tunnel
EC standards2006/42/CE, BT 2006/95/CE, CEM 2004/108/CE, EN 55011, CEI60519-6 :2011
Dimensions (W x H x D)6284 x 1890 x 1786 mm
Weight1900 kg