Quality Policy

Development and Selection

All desiccant dehumidifiers are designed and developed using modern software. The complete 3D model of the dehumidifier which includes all components is the result of thorough work of design engineers. Creating such 3D model allows to evaluate and to optimize the dehumidifier prior to its production and to exclude all problems that might arise later on during the assembly of the equipment.

Our design-engineers work in close cooperation with technical staff on the production site and installation specialists. Such cooperation gives the opportunity to optimize the model, the process of assembly and installation. Also, we always gather information from the companies where we have installed dehumidifiers, which allows us to continuously develop in the field of dehumidification and humidity control.

Our highly-professional engineers with many years of experience in the field of dehumidification are capable of offering the best possible solution to the problem of uncontrolled humidity using a desiccant rotor. Our technical experts can provide full technical support to the customers: from selection of the dehumidifier and recommendations on assembly, connection, operation and maintenance to the feasibility report.

Laser Cutting

The sheet steel for the case of dehumidifiers is cut on a German laser machine. It allows to cut the sheet of sizes up to 1500 × 3000 mm. Laser cutting has the following advantages:

• It saves material. Laser can cut along any curved shape leaving a very small distance between the parts and, therefore, this method allows to place many more components on the sheet compared to conventional methods of cutting of sheet material;
• No mechanical impact on the processed material;
• No need for further processing of the cut edges – the edge of the cut is straight, perpendicular to the angle of the sheet, with no burrs;
• Deformations are minimal, both temporary during the process of cutting and final after complete cooling;
• high accuracy of cutting;
• high productivity of the process, combined with the high quality of the cut surfaces;
• it is a highly-automated process of cutting flat and volumetric parts along curved shape of high level of complexity

Bending

Bending of sheet metal for the casing of desiccant dehumidifiers is carried out on the Japanese CNC bending press. CNC sheet-bending equipment allows to quickly produce parts with complex shapes and different angles of bending at a high level of accuracy and repetition.

The equipment allows to bend different sheet materials: construction steel, stainless and galvanized sheet metal, aluminum zinc. There is a wide range of bending punches and dies.

Resurfacing

Some casing parts of desiccant dehumidifiers go through finishing processes on the grinding machine, to achieve perfectly smooth edges.

CASE of desiccant dehumidifiers

Panels of desiccant dehumidifiers are insulated with rock wool (thermal conductivity – 0.035 W/(m•K)). The thickness of the insulating layer is 20 mm or 40 mm. Due to this fact dehumidifiers have a low noise level and, therefore, can be installed in the premises where people work. Also, they can be installed outside with no risk of the dehumidifier freezing through.

All joints between the panels are glued through with polyurethane thickener or sealed with silicone. Also, at the junctures between doors and panels a rubber thickener with a metal cord is used.

All units have a frame construction, which makes them more rigid and does not violate the air-geometry of the dehumidifying equipment.

Desiccant rotor

The main element of the desiccant dehumidifier is the desiccant rotor. We use the third generation silicagel rotors/wheel produced in Sweden. This kind of desiccant rotors is characterized by a higher content of active silicagel than any other rotor in its own market segment. The unique formula of the desiccant material provides a more efficient dehumidification. As the result, a desiccant dehumidifier with such a rotor provides a higher level of dehumidifying at a lower cost compared with a dehumidifier equipped with another type of rotor of the same size.

If there is no drip moisture the desiccant rotor has no restrictions on the humidity of the processed air (up to 100%)

The composition of the material of the rotor:

1. silicagel – 82%
2. fiberglass – 16%
3. acrylic coating – 2%

Physical properties:

• the density of the dry material – ( ~240 kg/m3)
• effectiveness of the adsorption of water vapor – ( >40%)
• maximum compression strength – ( >200 kPa)

Fire resistance (tests on ASTM E84):

• flammability index – 0
• smokiness – 0

Along its perimeter, the desiccant silicagel rotor is sealed with a silicone tape with a Teflon (PTFE) layer in order to prevent air leaks. Sectors of the processed and reactivated air are separated by a PTFE tape in order to avoid mixing of the two air streams.

Rotor sealing for small desiccant dehumidifiers is being achieved with the use of textolite plates that provide adequate strength, low weight and necessary sliding (low friction) factor of the rotor.

The desiccant rotor is equipped with a gear engine manufactured by German manufacturers, certified in accordance with DIN EN ISO 9001: 2008. The assigned certificate TÜV Rheinland confirms its compliance with the standards for gear engines in accordance with ATEX and IECEx. Some models are equipped with engines made in UK, which also correspond to all European standards.

To transfer the torque from the engine to the rotor a toothed belt and hooks on the rotor are used.

FANS used in the production of desiccant dehumidifiers

Fans are made in Germany and have a declaration of conformity CE. Starting with model MDC1000 all dehumidifiers are equipped with modern EC motors driven fans. Benefits of EC-fans:

• built-in electronic control system
• they allow to save 30% of energy in comparison with standard AC motors
• they are low noise level

All models starting from MDC1000 are equipped with a potentiometer to adjust the consumption of the dehumidifier. The control switch of the potentiometer is located on the control panel.

To exclude even minimal vibrations on the dehumidifier the fans are mounted on antivibration supports.