Equotip 550 Leeb U

The Equotip 550 Leeb U is the direct successor of the highly appreciated Parotester. It enables the user to quickly and precisely diagnose roll imperfections, hardness inconsistencies and uneven winding, thereby preventing problems for printing and converting operations. 

Portable and lightweight, the Equotip 550 Leeb U is perfect for roll hardness testing in the warehouse or on the production floor, providing an immediate visual assessment of the hardness profile. 

The new generation Equotip Touchscreen Unit offers an elaborate interface designed by industry experts for increased efficiency and an exceptional user experience. The enhanced software provides an interactive wizard, automatic verification processes, personalization options and custom report functions. The Touchscreen Unit is compatible with existing Parotester impact devices.

The full color display facilitates the best possible measuring experience and analysis of the measured data. The specially designed housing optimizes the on-site usage of the device in harsh environments.

Equotip 550 Leeb U Impact Device

  • Impact energy: 200 Nmm
  • Native scale: HLU (directly comparable to LU)
  • Extremely durable
  • Support ring: Large crown for a safe and stable impact on curved surfaces
  • Loading tube: Easy handling with loading and release in one smooth movement


Equotip Touchscreen Unit

  • Downward compatibility:  Compatible with the existing Parotester impact devices
  • Supporting barcode reader for fast, easy and reliable roll identification
  • Guiding wizard: Predefined workflow to increase process reliability and to improve measurement precision
  • Interactive guides: On-screen notifications to obtain the most relevant settings for your application
  • Custom reports: Modular generator allows customized measurement reports
  • PC-software included free of charge
  • Housing specially designed to be used on-site in harsh environments (IP 54), including carrying strap, integrated stand and sunshield cover
  • High resolution color display
  • Battery lifetime of > 8h
  • 8 GB Flash memory (> 1’000’000 measurements)
  • Dual core processor supporting diverse communication and peripheral interfaces: Probe Connector, USB Host, USB Device and Ethernet

Roll profiling and roll hardness testing on:

  • Large paper rolls
  • Midsize paper rolls
  • Small paper rolls
  • Thin film rolls
  • Foil rolls
  • Coated rolls

Checking electrical condensers during the manufacturing process.

Equotip Leeb Impact Devices

Measuring accuracy± 6 HLU (for Leeb U)
Impact energy200.0 Nmm for U probe
Mass of impact body26.0 g (0.92 ounces) for U probe
Ball indenterHardened Steel, 50.0 mm (1.97”) diameter for U probe


Display7” color display 800x480 pixels
MemoryInternal 8 GB Flash memory (up to 1’000’000 measurements)
Regional settingsMetric and Imperial units, multi-language and timezone supported
BatteryLithium Polymer, 3.6 V, 14.0 Ah
Battery lifetime> 8h (in standard operating mode)
Power input

12 V +/-25 % / 1.5 A

Weight (of display device)About 1525 g (incl. Battery)
Dimensions250 x 162 x 62 mm
Max. altitude2’500 m above sea level
Humidity< 95 % RH, non condensing
Operating temperature0°C to 30°C (32 to 86°F) (Charging, running instrument)
0°C to 40°C (32 to 104°F) (Charging, instrument is off)
-10°C to 50°C (14 to 122°F) (Non-charging)
EnvironmentSuitable for indoor & outdoor use
IP classificationIP 54
Pollution degree2
Installation category2