ACA Systems Oy wins the Excellent Paper Award at Specialty Paper Conference in China

Great news! China Specialty Paper Conference was held this year in Quzhou City on 16th October. ACA Systems won the award of Excellent Paper with the article “The application of hardness tester ACA RoQ in the paper industry” written by Jeff Qian, Sales Manager China.



The hardness of a paper roll is closely related to slittering, packing, printing, transportation as well as downstream processes. For a long time, domestic engineers estimated the hardness by visual inspection and hand feeling. This would mislead the adjustments for the related process. ACA RoQ is a new innovation that can measure the paper roll hardness accurately and provides reliable data for correcponding adjustments of the manufacturing or converting processes.

Key words: Paper roll hardness, RoQ, Winding, Caliper Control

Contact for more info:
ACA Systems Oy Beijing Representative Office
Mr. Jeff Qian
Tel. +86 10 84470832
E-mail: jeff(at)

Jeff Qian and the award for excellent paper
Jeff Qian and the award for Excellent Paper
Specialty paper conference 2017, Quzhou City, China
Specialty Paper Conference 2017, Quzhou City, China
ACA RoQ – Roll Hardness Profiler

In focus ACA RoQ

It is well known that the roll hardness has a direct link to roll quality in various operations. As we discussed with our roll manufacturing and converting customers, we noticed that there is a real need to improve the state of the art instrumentation for the roll hardness. Actually, what was used by the roll industry, was developed for other industries and so the accuracy and reliability of such technologies were often questioned. Hence, we developed ACA RoQ, not only to fulfill, but to exceed the needs of the roll industry.

Since the launch of ACA RoQ (2014), we have delivered over 120 units and our customers have identified and eliminated thousands of problematic rolls before causing costly rejections by the supply chain.

Core benefits of ACA RoQ

  • Distance measurement with 1 mm accuracy: Profiles are true high resolution hardness profiles including exact position information. Not just single measurement points one after the other.
  • Exact profile data can be used for paper machine controls: For example calendering control.
  • Fast measurement: Measurement frequency even 50 measurements/second. One customer roll measurement can be completed easily less than 30 seconds with high resolution. Wide parent reels less than a minute.
  • Integrated barcode reader: Roll identification easy. Just read the barcode of the roll before the measurement and information is attached to the data.
  • Operator independent measurement: Mechanism guides the hammer always perpendicular against the roll giving excellent repeatability of the measurement.
  • Semi-automated measurement cycle: Operator just place the device against the roll and measurement starts automatically and ends automatically in the end of the profile.
  • Measurement covers full roll length: Also first and last centimetre of the roll is included in the measured profile.
  • Hit force control: Measurement force is generated electrically without spring. This allows excellent control of the hit force and enables simple and accurate calibration of the device.
  • Integrated touch screen display: Simple and user friendly operating. High resolution profile graph displayed right after the measurement.
  • Excellent durability: Basically no wearing parts at all. Only polyamide measurement spoon under the hammer must be changed time to time. Typical lifetime 6 months or more.
  • Low need of maintenance: Calibration and maintenance check recommended once a year.
  • Cloud service available: Data can be transferred automatically from the device to the cloud service provided by ACA.
  • Long operating time: Strong Li-ion battery enables long operating time. More than 2 hours continuous measurement. Charging with USB
  • Full comprehensive warranty including mechanical parts (excl. wearing parts i.e. measurement spoon)
  • ACA Services available for troubleshooting and maintenance


More related infos:

Techinidyne, Why measure roll hardness:

Slideshare, ACA RoQ:

NONWOVENS ARE BOOMING! Visit us at Since 2017

Is YOUR roll quality good enough to gain market shares?

Nonwoven industry is going stronger than ever! Many market studies suggest CAGR between 7 – 15 % and the overall global market size is estimated to exceed $ 50 Mio in next years. Nonwoven companies are reporting record results and new capacity announcements follow one after the other. The biggest boom is recognized here in Asia, so it is exciting to feel the driving forces and meet the enthusiastic people at Since 2017.

Nonwoven rolls are converted to various end uses and the stable roll quality is a key requirement from the roll buyers. We at ACA Systems are having more than 30 years experiences in helping our customers to produce high quality rolls with improved production efficiencies.

We provide real-time roll to roll data delivered by ACA Permi online air permeability and pressure drop analyzer. ACA Permi is installed directly in the roll manufacturing process and feedback of the fast measurement can be used for process controls. Furthermore, when the roll is ready to be shipped for the customer, we have tools to check the final quality by ACA RoQ roll quality analyzer.

Our vision is to secure your competitive edge by allowing you to produce more uniform rolls to your customers. Please take a look on our application notes and you might find valuable insights.

› Process stability of a filter media
› Airlaid wire inspection
› Roll bagginess

We are delighted to invite you to discuss more in details during Since 2017. (8.-10.11.2017 Shanghai, China)

Our booth number is 1W16, warmly welcome!

“We secure your competitive edge”


ACA PERMI PD – Real time process and quality control analyzer for filter media production

Filtration industry is growing fast, driven by mega-trends such as demand for purer air and cleaner water, both being the subject of ever-more stringent legislation. For filter media producers this means higher filtration efficiency at lower pressure drop levels. Same time the basis weight of media is requested to decrease, but the strengths properties increased. Sounds like an interesting equitation!

We at ACA Systems Oy have developed a reliable tool for you to make the production and quality of filter media to meet today’s and tomorrow’s high expectations of the market.

We have introduced a new continuous air flow analyzer that is able to measure either air permeability or pressure drop of a media real-time during the manufacturing process. The on-line method is fast, reliable and accurate and it gives typically over 0,95 correlations to various lab standards. The structural web control by ACA PERMI PD guarantees the stable quality of filtration media.

Please take a look on our application notes, you might find valuable insights to your cases.
– Process stability of a filter media

For more details download the brochure or contact us at

Meet us also at Filtrex2017!

Forming fabric quality control in airlaid nonwoven

ACA Systems Oy has successfully delivered the first Permi HP air permeability analyzer for forming fabrics online quality control application in airlaid nonwoven process. Idea is to be able to predict the life-time and change time of the forming fabric. New forming fabric starts slowly to loose its air permeability characteristics when continuously used in airlaid nonwoven process. No such reliable analysis has been available so far.

ACA_ApplicationNotes_Wire_Felts (1)

Permi HP

Permi HP is a new online design for high air permeability materials such as various nonwovens and glassfiber nets. Latest delivery for glassfiber nets is Owens Corning USA.

RoQ deliveries

ACA has delivered the first 70 units of RoQ Roll Hardness Profiler. New features such as touch screen operation and WiFi are well received in a variety of industries. Applications include printing paper grades, specialty papers, plastic films, label and packaging materials. Companies using RoQ include Sappi, StoraEnso, 3M, Mitsubishi, Yupo, Honeywell, Avery Dennison, DelFortGroup and Bemis.