ABOUT THE COMPANY 
BAKING OVENS
- standard (1.5 ÷ 4 m) Cyclothermic baking band ovens with a band width of 1.5 ÷ 4m are the widest ranging type of ovens intended for higher volumes of production and for baking all common and uncommon types of bakery products freely set, baked in forms on trays etc. such as freely set bread, formed bread, toast, batons, baguettes, rolls, buns, Kaisers, hamburger buns, hotdog buns, fancy bread, cross buns etc. either from white wheat dough, darker rye-wheat dough, pure dark rye, or from several other types of dough. In the case of larger production volumes, these ovens can be used for all production for which narrow ovens are more commonly used (see narrow ovens 0.6 ÷ 1.4m).
- narrow (0.6 ÷ 1.4 m)
- double-deck Double-deck tunnel ovens are primarily used in bakeries of smaller dimensions where it is not possible to position a standard oven considering the required oven capacity and length. The use of these ovens is basically the same as standard ovens. They are designed for all common types of dough and non-standard baking production. These ovens are supplied in both standard widths (1.5 ÷ 4m), and in narrow design (0.6 ÷ 1.4m). They can be equipped with a steam zone, in either one or both decks simultaneously (parallel flow), i.e. that a different product can be baked on each deck and a different baking time can be set for each deck or, the oven is used for one type of product at a given time, i.e. that the product goes through the upper deck, at the end it is transferred to the bottom deck and returned to the oven start (counter-flow), in this case it is also possible to set various baking times on both decks while considering the required temperature curve for the respective type of production.
- high temperature High temperature indirect heated – cyclothermic tunnel ovens are designed for baking which demands up to 550° C and generally for a very short baking period. Such ovens are primarily suited for baking Arab style bread, or other products demanding baking temperatures above 340°C. It differs from other oven types mainly in its construction and construction materials which are resistant to high temperatures. These ovens are generally supplied without a steam zone, optional accessories and in widths of 1.2m and 1.8m and in baking area lengths of 12m and 14m. However, it is also possible to order other dimensions with consideration to the respective technology of the baking production line.
- electric Electric tunnel baking band ovens are produced in standard widths of 0.6÷ 4m (with grading after 0.1m), they can be either single or multi-decked, with or without a steam zone, or even completed with other suitable accessories for achieving optimum effectiveness and quality baking process, while maintaining low demands on energy. Electric tunnel band baking ovens cannot be equipped with a hot-air curtain and a BVP type pressureless steam generator.
- thermo-oil the description is being prepared
- pre-bake oven Cyclothermic high temperature pre-bake ovens are primarily intended for pre-baking bakery products demanding temperatures that greatly exceed 300°C, which e.g. is suitable for dough with greater volumes of rye, or pure rye dough, however their use is much broader than just that. The construction of this pre-bake cyclothermic tunnel baking oven stems from the concept of high temperature ovens in combination with a stone plate band, whose plates are created from pure natural granite. This is a unique, technological novelty, one of its kind in the world, developed by our company J4 s.r.o.
- hybrid
Modular unit solution of PPP xxx type tunnel baking band ovens fulfil the various requirements of skill as well as industrial bakery, pastry or confectionery production, including high capacity production factories and middle size or small bakeries for bakery products, thus rye and rye-wheat bread in both “industrial” and so-called “home” designs (baking bread on steel sheets or stone), baking white pastries, sponge cake biscuits, cookies, biscuits, gingerbread, pizza, rusks, sticks and confectionary pre-processed goods. PPP xxx ovens with various types of bands from widths of 0.6 m to 4 m work continuously with all types of liquid and gas fuels and electricity with a high level of heat effectiveness and they are the basis for organising production with a low share of human labour. All of the stated oven widths can also be equipped with respective lines for forming and proofing bread and white pastries, which guarantees savings of at least several workers in comparison with batch ovens. The standard is a high and constant level of quality of baked products for lower demands on service quantity and quality. Our ovens are especially suitable for bakeries with a daily production of 5.000÷70.000 pc of pastries and from 300÷4.500 pc of bread and possibly more in the case of exceptional configuration – have our experts give you advice. A well selected oven, either single-deck or double-deck, saves labour and enables baking to take place either directly on the band, and or on a trays or in forms, including short pastry and confectionary goods. All of this offered in very high and constant quality.
The ovens can be configured any way you like with consideration to the required baking technology and primarily – with regards to cyclothermic ovens, the position of the tower, respectively towers, with which the required temperature curves can be reached in the oven keeping in mind the baked products which will be baked in the given oven.
- the type of utilisable heating medium of cyclothermic ovens (gas, diesel, oil, or other gas or liquid fuels)
- electrical heating of the oven with the help of heating rods positioned in the oven’s baking tunnel (not concerning cyclothermic ovens)
- varying baking tunnel heights (270 mm standard)
- various types of conveyor bands
- extension of infeed and outfeed oven parts as necessary
- moistening (water spraying) of raw products at the infeed and also the baked products at the outfeed of the oven
- none, standard or extended steam zone can be combined with pre-steaming positioned ahead of the oven
- hot-air curtain
- turbulence zones – duotherm
- STIR technology
TOWER POSITION
J4 ovens can be equipped with a monitoring device with computer output which monitors the adherence to technological parameters of baked products. The advanced technological level enables the equipment to be connected for automatic settings and for adjusting the oven operations in conjunction with the proofer and other equipments. The ovens are generally equipped with Weishaupt burners, Lenze frequency converters, halogen lighting with transparent windows made from thick splinter-proof safety glass, stainless steel side jacketing and upper trafficable aluminium covering. The control and regulation elements are supplied according to the client’s wishes. The oven is equipped with a stepless baking time adjustment, helical bevel gearbox with a frequency converter for driving the oven bands and main circulation fan, underpressure heating system with indirect heating with the option to set baking curves, with the help of manually controlled or automatic computer controlled servo-drive heat dampers, digital thermometers and a whole scale of improvements which enable perfect baking in a very economical regime while maintaining constant product quality.
PPP oven advantages are primarily:
- insulation of sides from point zero height
- low electrical consumption thanks to frequency converters
- low gas consumption or other heating mediums
- low loss of heat into the bakery
- reliable burner with possibility of exterior air suction (minimum service demands)
- quality Dutch conveyor bands supplied by renowned producers
We also solve the issues of waste heat. Its thoroughly thought out use enables bakery operations to be streamlined further. The operating life of this type of oven reaches twenty years or more, including several minor repairs. Therefore, it is generally a very effective investment. What is very important is that we are also able to install our ovens into relatively small building layouts, thus from ten metres in length and three metres in width. Everything depends on the required production capacity, assortment and positioning of the oven. Our experts will suggest the optimum solution for you.
BAKING OVEN DENOMINATION
These ovens are generally equipped with a steam zone, nevertheless the decision concerning whether or not the oven will be equipped with it is optional. Furthermore, this oven width, from larger baking surfaces and with consideration to the type of production, generally equipped with hydraulic band tensioning and two helical bevel shaft mounted gearboxes for band drive without the use of a chain gear, which apart from other features significantly simplifies the demands on maintenance.
Furthermore, this group of ovens can be configured any way you please according to specifications in the introductory section “BAKING OVENS,” or also completed with suitable accessories to achieve optimum effectiveness and quality of the baking process, while maintaining low demands on energy.
Axonometric profile of a single tower, cyclothermic PPP oven with mechanical tensioning of the wire mesh band, with steam zone and band drive with two shaft mounted helical bevel gearboxes:
| 1: burner 2: burner chamber 3: combustion chamber 4: temperature regulation in the upper and bottom heating radiator 5: distribution ducts of hot combustion gases 6: return ducts of cold combustion gases 7: collecting chamber for cold combustion gases 8: cyclothermic ventilator of the heating system with speed control 9: exhaust chimney for combustion gases from the heating system 10: safety ventilation flap 11: hot combustion gases 12: cold combustion gases |
13: regulation damper for excess vapours from the baking chamber 14: exhaust chimney for vapours from the baking chamber 15: dual stainless steel steam pipes with 100% condensate separation 16: inspection window 17: baking chamber lighting 18: support U-beam with insulation lining 19: thermal insulation 20: wire mesh band conveyor 21: shaft-mounted gearboxes for band drive 22: mechanical band tensioning with weight 23: conveyor band tracking system (centering) 24: removable drawers for impurities |
Profile a double-tower cyclothermic PPP tunnel oven with steam, band drive with two shaft-mounted helical bevel gearboxes and mechanical tensioning of the wire mesh band:
| 1: tracking roller of band centering system 2: band drive roller 3: band tensioning roller 4: upper strand of the baking band 5: bottom return strand of the baking band 6: frame of the baking tunnel 7: outer jacketing of the baking oven 8: mixture of hot combustion gases, flow direction 9: cold combustion gases, flow direction 10: distribution ducts of hot combustion gases 11: return ducts of cold combustion gases |
12: bottom heating radiator 13: upper heating radiator 14: inside muffle 15: burner chamber 16: combustion – distribution chamber 17: collecting chamber 18: cyclotherm circulation fan 19: connecting duct 22: vapour exhaust chimney 23: steam pipes 24: doors of the baking tunnel 25: door control 27: explosion flaps 28: safety thermometer 29: control thermometer 30: underpressure sensor, protection of the cyclotherm system 31: ventilation flap of the cyclotherm |
Dimensions and capacity of basic variants of modular construction of PPP baking band ovens (with wire mesh band):
(The basic width of the baking area which can differ in intervals of 100 mm)
| PPP TYPE | width X | width S | width Z | length L | length P | capacity (kg/hr) |
|---|---|---|---|---|---|---|
bread 1,5 kg |
||||||
| PPP 2,1 18,9.xx1 | 2 100 | 3 100 | 3 580 | 11 600 | 2 850 | 342 |
| PPP 2,1 25,2.xx1 | 2 100 | 3 100 | 3 580 | 14 600 | 2 850 | 450 |
| PPP 2,1 31,5.xx1 | 2 100 | 3 100 | 3 580 | 17 600 | 2 850 | 558 |
| PPP 2,1 37,8.xx1 | 2 100 | 3 100 | 3 580 | 20 600 | 2 850 | 684 |
| PPP 2,1 44,1.xx1 | 2 100 | 3 100 | 3 580 | 23 600 | 2 850 | 792 |
| PPP 2,1 50,4.xx1 | 2 100 | 3 100 | 3 580 | 26 600 | 2 850 | 900 |
| PPP 2,1 50,4.xx1-2V | 2 100 | 3 100 | 3 580 | 26 600 | 2 850 | 900 |
| PPP 2,1 56,7.xx1-2V | 2 100 | 3 100 | 3 580 | 29 600 | 2 850 | 1 008 |
| PPP TYPE | width X | width S | width Z | length L | length P | capacity (kg/hr) |
|---|---|---|---|---|---|---|
bread 1,5 kg |
||||||
| PPP 2,5 30,0.xx1 | 2 500 | 3 500 | 3 980 | 14 600 | 2 850 | 540 |
| PPP 2,5 37,5.xx1 | 2 500 | 3 500 | 3 980 | 17 600 | 2 850 | 684 |
| PPP 2,5 45,0.xx1 | 2 500 | 3 500 | 3 980 | 20 600 | 2 850 | 810 |
| PPP 2,5 52,5.xx1 | 2 500 | 3 500 | 3 980 | 23 600 | 2 850 | 954 |
| PPP 2,5 60,0.xx1-2V | 2 500 | 3 500 | 3 980 | 26 600 | 2 850 | 1 080 |
| PPP TYPE | width X | width S | width Z | length L | length P | capacity (kg/hr) |
|---|---|---|---|---|---|---|
bread 1,5 kg |
||||||
| PPP 3,0 54,0.xx1 | 3 000 | 4 000 | 4 480 | 20 600 | 3 050 | 972 |
| PPP 3,0 63,0.xx1 | 3 000 | 4 000 | 4 480 | 23 600 | 3 050 | 1 134 |
| PPP 3,0 72,0.xx1-2V | 3 000 | 4 000 | 4 480 | 26 600 | 3 050 | 1 296 |
| PPP 3,0 81,0.xx1-2V | 3 000 | 4 000 | 4 480 | 29 600 | 3 050 | 1 458 |
| PPP 3,0 99,0.xxx1-2V | 3 000 | 4 000 | 4 480 | 36 050 | 3 050 | 1 782 |
| PPP 3,0 108,0.xx1-2V | 3 000 | 4 000 | 4 480 | 39 050 | 3 050 | 1 944 |
Cyclotherm tunnel baking band ovens with a band width of 0.6 ÷ 1.4m are intended primarily for bakery and confectionary businesses, in the production of durable pastries, such as cookies, cakes, sponge cake biscuits, sponge cake layers, gingerbread, STICK or SOLET type sticks sprinkled with salt or sesame etc. but can likewise be used for the production of general pastries as with wider ovens (see standard ovens 1.5 ÷ 4m).
Using a steel conveyor band for these ovens further enables you to select the suitable proportion of band distances between the top and bottom of the baking tunnel, i.e. the position of the band, in relation to the tunnel height, can be specified in the order keeping in mind the character of the baked products.
These ovens can be supplied with or without a steam zone according to the type of required production. Furthermore, they can be combined with either direct heating, or convection heating (see hybrid ovens).
In addition, this group of ovens can be configured any way you please according to specifications in the introductory section “BAKING OVENS,” or also completed with suitable accessories to achieve optimum effectiveness and quality of the baking process, while maintaining low demands on energy.
Axonometric profile of a single tower, narrow cyclothermic PPP tunnel oven with mechanical tensioning of the wire mesh band, with steam zone and band drive with one helical bevel gearbox:
| 1: burner 2: burner chamber 3: combustion chamber 4: temperature regulation in the upper and bottom heating radiator 5: distribution ducts of hot combustion gases 6: return ducts of cold combustion gases 7: collecting chamber for cold combustion gases 8: cyclothermic ventilator of the heating system with speed control 9: exhaust chimney for combustion gases from the heating system |
10: safety ventilation flap |
Axonometric profile of a single tower, narrow cyclothermic PPP tunnel oven with mechanical tensioning of the wire mesh band, with steam zone and band drive with one helical bevel aggregate:
| 1: burner 2: burner chamber 3: combustion chamber 4: temperature regulation in the upper and bottom heating radiator 5: distribution ducts of hot combustion gases 6: return ducts of cold combustion gases 7: collecting chamber for cold combustion gases 8: cyclothermic ventilator of the heating system with speed control 9: exhaust chimney for combustion gases 10: safety ventilation flap 11: hot combustion gases |
12: cold combustion gases 13: regulation damper for excess vapours from the baking chamber 14: exhaust chimneys for vapours 16: inspection window 20: wire mesh band conveyor 21: aggregate for band drive 22: mechanical band tensioning with weight 23: conveyor band tracking system (centering) 24: removable drawers for impurities 25: chain gear of conveyor drive 27: steam inlet from steam generator 28. flow regulation valve of steam inlet 29. regulation of adjustable Teflon curtains |
Profile of a single tower – narrow cyclothermic PPP tunnel oven with a steel band:
| 2: band drive roller 3: band tensioning roller 4: upper strand of the baking band 5: bottom return strand of the baking band 6: frame of the baking tunnel 7: outer jacketing of the baking oven 8: mixture of hot combustion gases, flow direction 9: cold combustion gases, flow direction 10: distribution ducts of hot combustion gases 11: return ducts of cold combustion gases 12: bottom heating radiator |
13: upper heating radiator |
Axonometric profile of a single tower, narrow cyclothermic PPP tunnel oven with mechanical tensioning of the wire mesh band, with steam zone and band drive with one helical bevel gearboxe:
| 1: tracking roller of band centering system 2: band drive roller 3: band tensioning roller 4: upper strand of the baking band 5: bottom return strand of the baking band 6: frame of the baking tunnel 7: outer jacketing of the baking oven 8: mixture of hot combustion gases, flow direction 9: cold combustion gases, flow direction 10: distribution ducts of hot combustion gases 11: return ducts of cold combustion gases 12: bottom heating radiator |
13: upper heating radiator 14: inside muffle 15: burner chamber 16: combustion – distribution chamber 17: collecting chamber 18: cyclotherm circulation fan 19: connecting duct 22: vapour exhaust chimney 23: steam pipes 24: doors of the baking tunnel 25: door control 27: explosion flaps 28: safety thermometer 29: control thermometer 30: underpressure sensor, protection of the cyclometer 31: ventilation flap of the cyclotherm |
Dimensions and capacity of basic variants of modular construction of PPP baking band ovens (with wire mesh band):
(The basic width of the baking area which can differ in intervals of 100 mm)
| PPP TYPE | width X | width S | width Z | width Y | length L | height P | capacity (kg/hr) |
|---|---|---|---|---|---|---|---|
bread 1,5 kg |
|||||||
| PPP 0,6 7,2 xx1 | 600 | 1 600 | 2 080 | 2 250 | 14 600 | 2 850 | 129 |
| PPP 0,6 9,6 xx1 | 600 | 1 600 | 2 080 | 2 250 | 18 600 | 2 850 | 173 |
| PPP 0,6 12,0 xx1 | 600 | 1 600 | 2 080 | 2 250 | 22 600 | 2 850 | 216 |
| PPP 0,6 14,4 xx1-2V | 600 | 1 600 | 2 080 | 2 250 | 26 600 | 2 850 | 259 |
| PPP 0,6 16,8 xx1-2V | 600 | 1 600 | 2 080 | 2 250 | 30 600 | 2 850 | 302 |
| PPP TYPE | width X | width S | width Z | width Y | length L | heighta P | capacity (kg/hr) |
|---|---|---|---|---|---|---|---|
bread 1,5 kg |
|||||||
| PPP 1,0 12,0 xx1 | 1 000 | 2 000 | 2 480 | 2 250 | 14 600 | 2 850 | 216 |
| PPP 1,0 16,0.xx1 | 1 000 | 2 000 | 2 480 | 2 250 | 18 600 | 2 850 | 288 |
| PPP 1,0 20,0.xx1 | 1 000 | 2 000 | 2 480 | 2 250 | 22 600 | 2 850 | 360 |
| PPP 1,0 24,0 xx1-2V | 1 000 | 2 000 | 2 480 | 2 250 | 26 600 | 2 850 | 432 |
| PPP 1,0 28,0 xx1-2V | 1 000 | 2 000 | 2 480 | 2 250 | 30 600 | 2 850 | 504 |
| PPP TYPE | width X | width S | width Z | width Y | width L | height P | capacity (kg/hr) |
|---|---|---|---|---|---|---|---|
bread 1,5 kg |
|||||||
| PPP 1,4 13,4 xx1 | 1 400 | 2 400 | 2 880 | 3 050 | 14 600 | 2 850 | 241 |
| PPP 1,4 22,4.xx1 | 1 400 | 2 400 | 2 880 | 3 050 | 18 600 | 2 850 | 403 |
| PPP 1,4 28,0.xx1 | 1 400 | 2 400 | 2 880 | 3 050 | 22 600 | 2 850 | 504 |
| PPP 1,4 33,6 xx1-2V | 1 400 | 2 400 | 2 880 | 3 050 | 26 600 | 2 850 | 604 |
| PPP 1,4 39,2 xx1-2V | 1 400 | 2 400 | 2 880 | 3 050 | 30 600 | 2 850 | 705 |
Dimensions and capacity of basic variants of modular construction of PPP baking band ovens with steel band:
(The basic width of the baking area which can differ in intervals of 100 mm)
| PPP TYPE | width X | width S | width Y | length L | length M | height P | capacity (kg/hr) |
|---|---|---|---|---|---|---|---|
| PPP 0,8 9,6.xx2 | 800 | 1 800 | 2 450 | 12 000 | 20 000 | 2 850 | 96 |
| PPP 0,8 12,8.xx2 | 800 | 1 800 | 2 450 | 16 000 | 24 000 | 2 850 | 128 |
| PPP 0,8 16,0.xx2 | 800 | 1 800 | 2 450 | 20 000 | 28 000 | 2 850 | 160 |
| PPP 0,8 19,2 xx2-2V | 800 | 1 800 | 2 450 | 24 000 | 32 000 | 2 850 | 192 |
| PPP 0,8 19,2 xx2-2V | 800 | 1 800 | 2 450 | 28 000 | 36 000 | 2 850 | 192 |
| PPP TYPE | width X | width S | width Y | length L | length M | height P | capacity (kg/hr) |
|---|---|---|---|---|---|---|---|
| PPP 1,0 12,0.xx2 | 1 000 | 2 000 | 2 650 | 12 000 | 20 000 | 2 850 | 120 |
| PPP 1,0 16,0.xx2 | 1 000 | 2 000 | 2 650 | 16 000 | 24 000 | 2 850 | 160 |
| PPP 1,0 20,0.xx2 | 1 000 | 2 000 | 2 650 | 20 000 | 28 000 | 2 850 | 200 |
| PPP 1,0 24,0 xx2-2V | 1 000 | 2 000 | 2 650 | 24 000 | 32 000 | 2 850 | 240 |
| PPP 1,0 28,0.xx2-2V | 1 000 | 2 000 | 2 650 | 28 000 | 36 000 | 2 850 | 280 |
| PPP TYPE | width X | width S | width Y | length L | length M | height P | capacity (kg/hr) |
|---|---|---|---|---|---|---|---|
| PPP 1,2 14,4.xx2 | 1 200 | 2 200 | 2 850 | 12 000 | 20 000 | 2 850 | 144 |
| PPP 1,2 19,2.xx2 | 1 200 | 2 200 | 2 850 | 16 000 | 24 000 | 2 850 | 192 |
| PPP 1,2 24,0.xx2 | 1 200 | 2 200 | 2 850 | 20 000 | 28 000 | 2 850 | 240 |
| PPP 1,2 28,8 xx2-2V | 1 200 | 2 200 | 2 850 | 24 000 | 32 000 | 2 850 | 288 |
| PPP 1,2 33,6.xx2-2V | 1 200 | 2 200 | 2 850 | 28 000 | 36 000 | 2 850 | 336 |
These ovens can be heated by either cyclotherm, using various types of gaseous and liquid fuels, or electricity. Furthermore, primarily with regards to narrow design, it is possible to use this type of oven for the production of durable pastries just as in the case of standard single-deck narrow ovens with the help of a special displacement conveyor.
In addition, this group of ovens can be configured any way you please according to specifications in the introductory section “BAKING OVENS,” or also completed with suitable accessories to achieve optimum effectiveness and quality of the baking process, while maintaining low demands on energy.
Axonometric profile of a double-deck cyclothermic PPP tunnel oven with a wire mesh band, without steam. It is a modular construction of “counter-flow with a displacement conveyor between decks:
| 1: burner 2: burner chamber 3: combustion chamber 4: temperature regulation in the upper and bottom heating radiator 5: distribution ducts of hot combustion gases 6: return ducts of cold combustion gases 7: collecting chamber for cold combustion gases 8: cyclothermic ventilator of the heating system with speed control 9: exhaust chimney for combustion gases from the heating system 10: safety ventilation flap 11: hot combustion gases |
12: cold combustion gases 13: regulation damper for excess vapour from the baking chamber 14: exhaust chimney for vapours 15: dual stainless steel steam pipes with 100% condensate separation 16: inspection window 17: baking chamber lighting 19. thermal insulation 20: wire mesh band conveyor 21: band drive aggregate with controlled rotations 22: mechanical band tensioning with weight 30: Roller conveyor for bread displacement |
Profile of a double-deck oven:
| 1: band drive roller 3: band tensioning unit 4: upper strand of the baking band 5: bottom return strand of the baking band 6: frame of the baking tunnel 7: outer jacketing of the baking oven 8: mixture of hot combustion gases, flow direction 9: cold combustion gases, flow direction 10: returning ducts of cold combustion gases 12: bottom heating radiator 13: upper heating radiator 14: inside muffle 15: burner chamber 16: combustion – distribution chamber |
17: collecting chamber 18: cyclotherm circulation fan 19: connecting duct 20: exhaust chimney of baking chamber vapour 21: exhaust chimney of excess combustion gases 22: vapour exhaust chimney 23: steam pipes 24: doors of the baking tunnel 25: door control 27: explosion flaps 28: safety thermometer 29: control thermometer 30: underpressure sensor, protection of the cyclometer 31: ventilation flap of the cyclotherm |
Dimensions and capacity of basic variants of modular construction of PPP tunnel baking band ovens with wire mesh band:
(The basic width of the baking area which can differ in intervals of 100 mm)
| PPP TYPE | width X | width S | width Y | length L | height P | capacity (kg/hr) |
|---|---|---|---|---|---|---|
bread 1,5 kg |
||||||
| PPP 0,6 7,5.xx1-2E | 600 | 1 600 | 2 250 | 8 220 | 2 850 | 135 |
| PPP 0,6 8,3.xx1-2E | 600 | 1 600 | 2 250 | 8 870 | 2 850 | 150 |
| PPP 0,6 9,0.xx1-2E | 600 | 1 600 | 2 250 | 9 520 | 2 850 | 162 |
| PPP 0,6 9,8.xx1-2E | 600 | 1 600 | 2 250 | 10 170 | 2 850 | 176 |
| PPP 0,6 10,5.xx1-2E | 600 | 1 600 | 2 250 | 10 720 | 2 850 | 189 |
| PPP TYPE | width X | width S | width Y | length L | height P | capacity (kg/hr) |
|---|---|---|---|---|---|---|
bread 1,5 kg |
||||||
| PPP 1,0 12,5.xx1-2E | 1 000 | 2 000 | 2 650 | 8 220 | 2 850 | 225 |
| PPP 1,0 13,8.xx1-2E | 1 000 | 2 000 | 2 650 | 8 870 | 2 850 | 248 |
| PPP 1,0 15,1.xx1-2E | 1 000 | 2 000 | 2 650 | 9 520 | 2 850 | 272 |
| PPP 1,0 16,4.xx1-2E | 1 000 | 2 000 | 2 650 | 10 170 | 2 850 | 295 |
| PPP 1,0 17,5.xx1-2E | 1 000 | 2 000 | 2 650 | 10 720 | 2 850 | 315 |
| PPP TYPE | width X | width S | width Y | length L | height P | capacity (kg/hr) |
|---|---|---|---|---|---|---|
bread 1,5 kg |
||||||
| PPP 1,4 17,5.xx1-2E | 1 400 | 2 400 | 3 050 | 8 220 | 2 850 | 315 |
| PPP 1,4 19,3.xx1-2E | 1 400 | 2 400 | 3 050 | 8 870 | 2 850 | 447 |
| PPP 1,4 21,1.xx1-2E | 1 400 | 2 400 | 3 050 | 9 520 | 2 850 | 380 |
| PPP 1,4 23,0.xx1-2E | 1 400 | 2 400 | 3 050 | 10 170 | 2 850 | 414 |
| PPP 1,4 24,5.xx1-2E | 1 400 | 2 400 | 3 050 | 10 720 | 2 850 | 440 |
| PPP TYPE | width X | width S | length L | height P | capacity (kg/hr) | |
|---|---|---|---|---|---|---|
bread 1,5 kg |
||||||
| PPP 2,1 25,2.xx1-2E | 2 100 | 3 100 | 8 420 | 3 050 | 453 | |
| PPP 2,1 29,4.xx1-2E | 2 100 | 3 100 | 9 070 | 3 050 | 529 | |
| PPP 2,1 31,5.xx1-2E | 2 100 | 3 100 | 9 720 | 3 050 | 567 | |
| PPP 2,1 33,6.xx1-2E | 2 100 | 3 100 | 10 370 | 3 050 | 605 | |
| PPP 2,1 37,8.xx1-2E | 2 100 | 3 100 | 10 920 | 3 050 | 680 | |
| PPP 2,5 30,0.xx1-2E | 2 500 | 3 500 | 8 420 | 3 050 | 540 | |
| PPP 2,5 35,0.xx1-2E | 2 500 | 3 500 | 9 070 | 3 050 | 630 | |
| PPP 2,5 37,5.xx1-2E | 2 500 | 3 500 | 9 720 | 3 050 | 675 | |
| PPP 2,5 40,0.xx1-2E | 2 500 | 3 500 | 10 370 | 3 050 | 720 | |
| PPP 2,5 45,0.xx1-2E | 2 500 | 3 500 | 10 920 | 3 050 | 810 | |
| PPP 3,0 36,0.xx1-2E | 3 000 | 4 000 | 8 420 | 3 050 | 648 | |
| PPP 3,0 42,0.xx1-2E | 3 000 | 4 000 | 9 070 | 3 050 | 756 | |
| PPP 3,0 45,0.xx1-2E | 3 000 | 4 000 | 9 720 | 3 050 | 810 | |
| PPP 3,0 48,0.xx1-2E | 3 000 | 4 000 | 10 370 | 3 050 | 864 | |
| PPP 3,0 54,0.xx1-2E | 3 000 | 4 000 | 10 920 | 3 050 | 972 | |
Due to high baking temperatures, the conveyor of these tunnel ovens is generally a wire mesh band for operations in high temperatures.
The ovens can be heated with gas, diesel, oil, or other gas and liquid fuels.
The use of these ovens combines the option to bake products specified in both narrow and standard widths.
Axonometric profile of a PPP electric tunnel oven with steam zone, duotherm zone, hydraulic tensioning of wire mesh band, band drive with two helical bevel gearboxes:
| 1: main electro distributor box of the oven 2: heating rods - heaters 3: box for electro connection of heating rods 13: regulation damper for excess vapour from the baking chamber 14: vapour outlet 15: dual stainless steel steam pipes with 100% condensate separation 16: inspection window 19. thermal insulation 20: wire mesh conveyor band 21: two shaft-mounted helical bevel gearboxes of band drive 22: hydraulic band tensioning |
23: conveyor band tracking system (centering) 24: removable drawers for impurities 27: steam inlet from steam generator 28. flow regulation valve of steam inlet 29. regulation of adjustable Teflon curtain 31: thermometer in the baking chamber 32: hydraulic aggregate 33: duotherm fan (turbulence) |
The main benefit of this pre-bake oven equipped with a granite-stone plate conveyor band is the ability to accumulate great quantities of heat in individual granite plates along the entire conveyor band, helping in perfecting the process of pre-baking the product from below and thus creating a sufficiently strong bottom crust. The cheaper variant of this oven, with lower, but nevertheless, good ability to accumulate heat, is equipped with a link plate metal band.
Such baking aggregates are generally comprised of short pre-bake ovens and then with a standard finishing oven, while the product transfer from one oven to the next is solved by a folding transfer conveyor band. The finishing oven’s construction no longer needs to be adapted to baking with high temperatures, nor equipped with a steam zone or conveyor band with the ability to accumulate greater quantities of heat, as in the case of e.g. mesh bands, which significantly decreases the purchase price while maintaining the product’s quality and effectiveness of the entire baking process.
In addition, this group of ovens can be configured any way you please according to specifications in the introductory section “BAKING OVENS,” or also completed with suitable accessories to achieve optimum effectiveness and quality of the baking process, while maintaining low demands on energy.
Axonometric profile of a PPP high temperature pre-bake tunnel oven equipped with a stone (granite) plates conveyor band and steam system:
| 1: burner 2: burner chamber 3: combustion chamber 4: damper for heating regulation 5: distribution ducts of hot combustion gases 6: return ducts of cold combustion gases 7: collecting chamber for cold combustion gases 8: cyclotherm ventilator of the heating system with speed control 9: exhaust chimney for combustion gases from the heating system 11: hot combustion gases |
12: cold combustion gases 13: regulation damper for excess vapour from the baking chamber 14: vapour exhaust chimney 15: double stainless steel steam pipes with 100% condensate separation 16: inspection window 19: thermal insulation 20: wire mesh band 21: aggregate for band drive 22: mechanical band tensioning 24: removable drawers for impurities 27: steam inlet 28: flow regulation valve of steam inlet 29: adjustable Teflon curtain |
This group of ovens is an alternative to narrow ovens, with regards to both dimension and purpose of use. It is generally comprised of complete units of narrow ovens with a band width of 0.6 ÷ 1.4m which can be individually constructed from ovens with direct heating, indirect cyclothermic heating and convection heating. J4 s.r.o. produces and supplies all of these oven types, either separately or as a complete unit. The length of individual oven parts, differing in their method of heating, is variable and generally determined according to the required production technology for the given production line. Such ovens are referred to as hybrid and their main use is in bakery and confectionary businesses producing various types of cookies, sponge cake biscuits, ginger breads etc. and furthermore, in all places where baking in combination with drying, respectively only drying, are needed for the given baking product.
Dimensions of drawings of cyclothermic and convention tunnel oven equipped with a steel band:
■ We produce baking band ovens in versions for mid-sized bakeries with bread production from 300 pc/hr or 3500 pc/hr of pastries
■ We produce baking band ovens in versions for industrial bakeries with a bread production from 1000 pc/hr and 160000 pc/hr of pastries