Orthopac RVMC-15

Quick and accurate straightening.

Weft straightening the way it should be

The Orthopac RVMC is the universally employable straightening system from Mahlo for the correction of web distortions for nearly all applications. Available with hydraulic or electrical straightening roller adjustment.

The modular construction allows the system to be configured to meet the demands of changing conditions and requirements.

Product highlights

  • Modular system architecture
  • Easy to retrofit
  • Operator-friendly
  • Informative process visualization

Customer benefits

  •  Online monitoring and regulation of all relevant parameters
  • Increased productivity
  • High production reliability
  • Optimised process repeatability
  • Documentation of quality
  • Providing a comparative basis for the quality standard
  • Considerable energy savings
  • Short amortisation times

Textile process excellence

Textile manufacturers and textile outfitters are fighting with increasing production and energy costs, declining profit margins, shorter production times as well as greater requirements on quality and flexibility. Cost-efficient and quality-focused textile outfitting thus becomes increasingly important. Sustained production and the trend to higher-quality, technically sophisticated textiles also play a major role.

Regardless of the challenges of the textile industry – Mahlo has the right solutions ready. The broad range of applications for the textile industry by Mahlo is based on experience reaching back to the year 1945.

Orthopac is a modular straightening and process control system available throughout the entire process of textile outfitting. It combines the functionality of a weft straightener with that of a process control system in one compact device. It automatically ensures a straight-thread product before and after the drying or fixing process and optimises the processes all around the stenter.

This increases quality and saves resources and energy. The modular design of the system allows its flexible adaptation to all applications. Both, standard requirements and highly customized demands are thus met.

Weft straightening and process control united

The weft straightener Orthopac with integrated web distortion detection forms the basis of the modular design. Additional intelligent sensors can be connected to the control system via a bus connection.

The following process parameters can be measured, visualized, controlled and documented by means of special software packages (Print Server).

  • Weft thread or course skew / skew and bow rollers of the straightener Orthopac RVMC
  • High moisture / squeezing pressure
  • Thread or course density / over-feed
  • Exhaust air humidity / fan speed / flap opening
  • Surface temperature / product web speed and dwell time
  • Grammage / over-feed
  • Residual moisture / product web speed
  • Stretch and Shrinkage / over-feed
  • Product width

The touchscreen of the system displays the measurements. Individually modifiable displays of the measured values facilitate easy monitoring of the complete process by the user.

Various software packages (FULL or BASE) allow adjusting visualization and operating concept to different demands on detectability and user convenience.

Area of application

  • At the feed end of a stenter
  • At the feed end of a levelling stenter
  • On decatisers
  • Ahead of a printing machine
  • Between an open width washing machine and drum dryer
  • On coating ranges ahead of the coater at the feed end of a
    flame laminator
  • At the feed end of wide compactors for knitgoods
  • etc.


  • RMM Straightener: Manual straightening machine without optical scanning system and control

Technical data

  • Power connection: 3 x 400 VAC ±10 %, 50/60 Hz; transformer station available for special voltages
  • Max. power consumption:  4 kVA
  • Ambient temperature: 5 – 45 °C (without A/C unit), 5 – 50 °C (with A/C unit)
We hire!


Key-Exhibition for Garment & Textile Machinery
20 - 26 Jun 2019
Barcelona, Spain
Visit us at booth no. H2-C203!


Mahlo GmbH + Co. KG • Donaustraße 12 • 93342 Saal /Donau
Tel.: +49-9441-601-0 • info@mahlo.com