Hasslacher

Valutec OTC continuous kiln at a sawmill, with stacked timber and surrounding industrial site.

Technical information


Country: Austria
Model: OTC Continuous kiln
Capacity: 80,000 m³ (34 MMBF)
Commissioning: 2016

The Austrian company Hasslacher is a family-owned sawmill group with seven facilities in three countries. At its plant in Sachsenburg, Austria – one of Europe’s most modern glulam sawmills – the company has invested in two Valutec OTC continuous kilns. The investment increases capacity by approximately 80,000 m³ (34 MMBF).

Hasslacher: “Drying technology you can rely on”

In Carinthia, Austria, you will find one of Europe’s most modern glulam production facilities – Hasslacher Norica Timber. When it came time to invest in new drying capacity, the requirements included both increased capacity and improved drying quality to meet the needs of further processing. After a thorough selection process, the choice fell on two OTC continuous kilns from Valutec.

“The result is less checking, less twisting and a much more uniform final moisture content. Valutec has kept its promise,” says Bernhard Spitzer, Project Manager and Site Manager at Hasslacher Norica Timber, at the time of the investment.

The OTC continuous kilns are used for drying glulam lamellae made from 44 mm spruce center-cut lumber down to a final moisture content of 12%. The high and consistent quality is proof that Hasslacher made the right decision in choosing continuous kilns – a kiln type still relatively uncommon in Central Europe.

“When you are drying larger volumes, with high quality requirements and access to a consistent inflow of raw material, continuous kilns offer major advantages,” explains Bernhard Spitzer.

Fast and precise drying

One advantage is the continuous operation of the kilns, which provides an even load on the boiler. This avoids the energy consumption peaks that can occur when several batch kilns need to be heated in parallel. In addition, the facilities are both efficient and highly reliable.

“Today, our drying times are only 80 to 85 hours for the large dimensions we dry. For every package, we save up to a full day of lumber drying compared to our traditional batch kilns,” says Bernhard Spitzer.

Hasslacher Norica Timber

– The result is less checking, less twisting and a much more uniform final moisture content.

Bernhard Spitzer, Project Manager and Site Manager

The continuous kilns, built in stainless steel, are equipped with pressure frames to minimize deformation of the top lumber layers, as well as Valutec’s heat recovery system. The delivery also included the Valmatics control system

Training as part of the delivery

When the kilns were commissioned, Valutec carried out on-site training at Hasslacher covering the basics of operating both the continuous kilns and the control system.

“It’s part of our turnkey commitment, and for sawmills that have not previously used continuous kilns, it is naturally especially important. We support our customers all the way, from commissioning to training and ongoing optimization, to ensure they get the maximum value from their facility,” says Robert Larsson, CEO of Valutec.

At Hasslacher, the training proved highly valuable.

“A natural part of our strong focus on quality is tight tolerances when it comes to target moisture content. Having strong support in working towards higher quality is very important to us,” says Michael Fercher, Technical Manager at Hasslacher.

Thorough selection process

Choosing Valutec was not an obvious decision for Hasslacher, which had previously neither worked with Valutec nor with continuous kilns.

“Before selecting a supplier, we visited several sawmills already using Valutec’s continuous kilns,” says Michael Fercher.

The common denominator was smooth production and very positive feedback from users. That gave us confidence in our choice.

There were also considerations at Hasslacher regarding how the project would be executed, given that the supplier was based in Sweden, and how commissioning of the facilities would be handled.

“We started exactly according to schedule and have had excellent communication throughout the project. Robert Larsson is truly knowledgeable, and their team also did a really great job here with us,” says Michael Fercher.

Want to know more?

Portrait of Robert Weithofer, Valutec.

Robert Weithofer

Authorized Sales Agent, North America
+1 (413) 246 2881
robert.weithofer@valutec.se