Mahild has been active in the field of lumber drying since 1996 and has set itself the goal of building the fastest drying kilns on demand, which offer the highest drying quality, a long life span and lowest energy consumption.
The product range includes pre-dryers, standard dryers, steaming and reconditioning chambers, combi chambers, continuous dryers and heat treatment by TMT kilns.
Mahild's drying processes and kiln technology are in constant development. One of the main concerns is the improvement of the ecological footprint - Dry Green.
Mahild stands for top technology with the best price-performance ratio and is an experienced partner in planning, realization and service for mutually profitable business activities.
A Global Market
Lumber dry kilns for all purposes and all types of wood are available worldwide in variable sizes. Mahild designs individually with regard to respective customer and country requirements. Our dry kilns are easy to assemble and we guarantee a worldwide safe and fast spare parts supply.
The pre-drying of freshly sawn timber is particularly gentle and economical. Valuable timber is dried in a mild climate without discoloration to a moisture content of 20 to 30%. Wood damage caused by uncontrolled drying outdoors can be avoided and the quality of the valuable raw material increased. The main advantage of pre-drying is the lower degradation rates of the wood.
The Mahild technology integrates the pre-drying process in a pre-dryer or a combined chamber with other drying processes. Pre-dryers with special zone control in all-aluminium design can be constructed for useful volumes of more than 3000 m³ lumber.
The steaming of wood at the beginning of the drying process is a common practice when drying hard or hard-to-dry lumber. The main objectives are to improve the colour distribution of the wood and to heat it gently to achieve better drying conditions.
Steaming the wood at the end of the drying process is called conditioning. The aim of conditioning is to reduce the transverse and longitudinal tensions in the wood occurring during the drying process and to ensure stress-free sawn timber.
Steaming and reconditioning processes can be either integrated into the dry kiln or externalised in special steaming or reconditioning chambers. Mahild offers steaming and conditioning chambers in all dimensions and for all heating media.
The conventional drying technology is carried out at temperatures of 55°- 80°C and is a very economical solution for drying high-quality wood. Each plant is specially designed according to the type of wood and customer-specific requirements.
The Mahild standard dryer is a classic and is specifically designed for your lumber and location.
Compared to conventional drying, the latest generation of high-speed dryers enables a significant reduction in drying times. Special heating and conditioning programs ensure tension-free, uniform drying and enable immediate further processing of the dried goods. This drying technology is particularly suitable for the drying of fast-growing plantation woods (such as Pinus Radiata, Pinus Elliottii or Pinus Taeda, ...)
Mahild drying kilns of the type ACT can be loaded with single, double or multiple track systems in cycles or in continuous operation. The ACT technology is particularly efficient in combination with the Mahild CONTRAFLOW construction design.
UHT: Ultra Hight Temperature - For high performance with temperatures from 95 to over 140°C.
UHT technology is the fastest and most economical process for drying construction timber and packaging assortments. Mahild UHT kilns guarantee high productivity and allow drying of several batches within 24 hours. The right way not only for special assortments and mass production in the construction timber sector.
ULTRA high temperature processes require robust, highly reliable kiln technology with the highest quality standards and functional reliability of the kiln components for continuous operation.
The new Mahild CONTRAFLOW kiln offers an extremely low energy consumption and increased drying quality. Compared to conventional continuous dryers, up to 30% less thermal energy consumption is achieved with extremely uniform final moisture distribution. Intelligent multi-zone control and integrated conditioning phases offer high flexibility for lumber thickness changes during operation. The Mahild CONTRAFLOW can be used with high, medium and low temperatures. There are no limits to the maximum kiln capacity - depending on customer requirements. Several wood thicknesses can be dried simultaneously to the desired final moisture content.
Temperature and steam treated wood is a modern product. The thermal treatment allows the colour properties of the wood to be adapted to the customer's requirements and the weather resistance and thermal insulation properties to be improved. In addition, the wood is more resistant to the attack of insects and microorganisms.
For the treatment and refinement of soft and hard wood, kilns with a useful volume of well over 100 m³ are available. The continuously further developed kilns for the thermal modification of wood (TMT) are characterised by low energy consumption and integrated heating systems and can be operated independently of complex boiler systems. Mahild TMT plants are designed for treatment temperatures up to 240 °C. The process requires precise control: a task for the MM4000 controller with special software, which logs all relevant data of the treatment.
Present us with your drying problem and we will find the right solution for you. We have designed and built dryers for paper products, veneer re-drying and conditioning chambers for various hygroscopic products.
The energy concepts of Mahild kilns are designed to meet customer-specific requirements. Therefore, existing heat sources can be used or Mahild gives advice on an alternative energy concept.
Loading and Door Systems
Choose your individual loading and door system. No matter whether it is forklift, track or continuous feeding; lifting, sliding and/or folding gate; manual, semi or fully automated, we will find the most efficient and space-saving solution for you.
Mahild offers modern, robust, standardized industrial computers and control systems. While the hardware can be provided by the customer, Mahild supplies the software and commissions the entire system. Service-friendly, safe and future-oriented.
In addition to the planning, design and commissioning of the dry kiln, the complete installation of the plant can be carried out by Mahild. This includes the electrical and mechanical installation. For non-turnkey projects a supervisor is provided to direct the installation.
Your existing lumber dry kilns need an update? Mahild can equip them with the latest technology to make them highly productive and environmentally friendly. We suggest necessary modifications and calculate the return of investment.
Training and Consulting
Mahild offers consulting in the field of lumber drying, including: Analysis of the current processes, introduction and implementation of quality controls, operator training, advice and support with the development of drying programs, development of concepts for improvement.
We are constantly working on the further development of our technology with the aim of significantly improving the environmental balance of our plants while maintaining high productivity. For the benefit of our common environment.
Reduction of CO2 emissions
Reduction of the emission of exhausted air
Reduction of noise
Reduction of the thermal energy
Reduction of heat and transmission losses in housing and foundation
Reduction of electrical energy by variable air flow during drying
Intelligent energy management for the optimum use of heat and increased boiler efficiency.
Development and Innovations
The new high-efficiency fan impeller increases the efficiency of Mahild lumber drying kilns by up to 30%.
The LUVO technology allows the use of low temperature hot water (60-75°C) from exhaust heat of thermal power plants.
During lumber drying, natural shrinkage often causes deformation, especially of the upper layers of boards. These deformations can be prevented or limited by the application of weights.
The Mahild TOP-PRESS system takes over this task reliably, safely and automatically. One push of a button is enough and the wood stacks in the dryer are loaded with a continuously adjustable load. A constantly high pressing pressure - or one that is automatically adjusted to the drying process - ensures dimensionally stable board material even in the upper layers of the stacks.
Thanks to a new reconditioning concept, the conditioning times in Mahild drying chambers can be reduced by up to 50%. The ecological reuse of energy also allows a reduction of drying costs.
Wood moisture measurement
The sensor, control and measuring systems of the Mahild plants are in constant development.
The ECO-THERM system allows the use of inexpensive low-temperature exhaust heat from power plants even in Mahild high-speed drying kilns.
With the DUO-FAN ventilation technology, maximum performance with low energy consumption is achieved even in large-capacity drying kilns. Economically convincing, ecologically responsible.
The VARIFLEX air guidance and shutter system reduces useless bypass air flows in the dry kiln and ensures that the air circulating in the chamber is fully effective in the wood to be dried. Reduces energy costs and increases the drying quality.
MAHILD LOW NOISE
Special new materials and construction improvements decisively absorb the fan noise. Noise emissions are reduced while energy consumption is minimized.
MAHILD AIR is a ventilation system with an extremely high air capacity, for drying facilities of all temperature ranges. The result is very consistent, balanced final wood moisture.
With constantly short drying times, the user has the possibility of operating special low temperature programs, which maintain the natural colour of the wood.
New generation of air guiding deflectors provide more uniform air flows over the surface of the wood resulting in faster drying and more uniform final moisture content.
With the TURBO-VENT system, air flow rates can be increased by up to 20% without installing additional fans or increasing motor power.
Energy management according to the latest standards. The available thermal energy is used as required -- where the productivity of the kiln requires it and where the quality of the material to be dried dictates it. The results are uniform boiler loads, increased boiler efficiency and reduced emissions and downtimes.
A uniform colouring of the wood can only be achieved in a completely saturated steam atmosphere. The OXI-VENT system ensures perfect conditions in the steaming chamber, so that uniform wood colouring is achieved and steaming times are significantly reduced.
Your expert for lumber drying
High-tech timber drying kilns
High temperature drying UHT
Accelerated drying ACT
Steaming and reconditioning
Continuous drying CONTRAFLOW
Heat treatment TMT
References and News
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