MARYLINE range: proofer, retarder prover and more
The MARYLINE range offers a complete solution for fermentation management and storage in bakeries and pastry shops. As a plug-in ready unit with minimal installation costs, the MARYLINE is available in four versions: Proofer, Retarder prover, Flex-UV and Flexpatis-UV.
Thanks to its optimised air circulation through a false ceiling and air deflectors, the MARYLINE guarantees an even distribution of temperature and humidity throughout the entire chamber.
Its CFC-free rigid polyurethane foam insulation, 60 mm thick, ensures exceptional thermal performance in both positive and negative temperature ranges.
Key features of the MARYLINE range
Plug-in ready unit: minimal installation costs
Award-winning PID control (IBA Trophy): extremely precise control of humidity, heat and cold
Automatic frequency inverter: fan speed adapted to each production phase
Electrode steam generator: reliable system with long service life
6-inch touchscreen control: intuitive operation with integrated user manual
Full stainless steel construction: interior and exterior walls
60 mm insulation in high-performance polyurethane foam
No evaporator defrosting required
Up to 25 support rails
LED interior lighting
MARYLINE technologies & innovations
Proven HEIN refrigeration technology at the service of your daily production
Award-winning PID control
Proportional, integral and differential control, awarded the IBA Trophy for innovations. Extremely precise control of humidity, heat and cold supply.
Frequency inverter
Automatic fan regulation: 100% for rapid freezing, reduced speed in normal use, 200 speeds for even defrosting of all products.
Electrode steam generator
No electric heating elements: the stainless steel electrodes heat the water directly. Reliable system, long service life, barely affected by water hardness.
6-inch touchscreen control
Intuitive touchscreen with integrated user manual, logbook (120 entries), simple adjustment of temperature, humidity and floor heating. USB port for monitoring.
Exceptional floor construction
2 mm stainless steel floor with adjustable electric heating. Ensures an even climate and prevents condensation on the floor.
HEIN manufacturing quality
Over 140 years of experience. All interior walls protected by buffer rails. Easily replaceable magnetic door seal. LED interior lighting.
Technical specifications
Specifications for the trolley model (1 trolley 80×60 or 2 trolleys 40×60)
| External dimensions (D×W×H) | 1180 × 870 × 2485 mm |
| Internal dimensions (D×W×H) | 1000 × 710 × 1950 mm |
| Clear door opening (W×H) | 710 × 1950 mm |
| Maximum capacity | 80 kg |
| Electrical supply | 3 × 400 V / 50 Hz |
| Power consumption (Proofer) | 3.5 kW |
| Power consumption (Retarder prover) | 4.5 kW |
| Cooling capacity (Retarder prover) | 980 W |
| Power consumption (Flex-UV / Flexpatis-UV) | 4.5 kW |
| Cooling capacity (Flex-UV) | 1150 W |
| Cooling capacity (Flexpatis-UV) | 1350 W |
Technical data for the trolley model. Tray model: external dimensions 1030×810×2290 mm (Proofer) / 1180×870×2485 mm (others). Subject to modifications.
MARYLINE options & accessories
Customise your MARYLINE to suit your production needs
Standard equipment
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6-inch touchscreen control
Intuitive interface with integrated user manual and logbook
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Electrode steam generator
Reliable system with automated drainage
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Magnetic door seal
Easy replacement without tools
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LED interior lighting
Optimal visibility inside the chamber
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Buffer rails
Protection of all interior walls
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Polyurethane insulation 60 mm
High-performance thermal insulation, CFC-free
Available options
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Flex-UV PLUS
Allows storage of pre-baked products for up to 3 weeks
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Glass door
Product inspection without opening the door
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Black finish
Unit available in black stainless steel
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Remote monitoring
Monitoring via TCP/IP / Ethernet
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Additional support rails
Standard with 25 pairs, expandable as needed
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Acid-resistant evaporator
Enhanced protection against acidic environments
Need a specific configuration?
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Discover the MARYLINE range from every angle
Equip your bakery with the MARYLINE range
Our experts advise you on choosing the right MARYLINE configuration for your production. Proofer, retarder prover or long-term storage, we have the solution for you.