Discover our new SPREADMASTER, the latest innovation in the world of sun protection evaluation. This improved version is designed to meet the needs of professionals who demand unrivalled precision in the application of suncare products. Smaller, lighter and equipped with cutting-edge technology, the SPREADMASTER offers enhanced performance that redefines market standards with an accuracy of 0.005 mm (5 µm).

With its ability to spread sunscreen products evenly on substrates PMMA molded (HD6) and sandblasted (SB6)the SPREADMASTER ensures reproducibility and precise measurement of sun protection, facilitating research and development of new, effective products. Fully compliant with solar standards such as ISO 24443:2021, ISO/DIS 23675, ISO/CD 23698 and others, making this robot indispensable for the accurate assessment of Sun Protection Factors(SPF), UVA protection(UVAPF), and more.

With its compact design, the SPREADMASTER can be placed on a bench, making it ideal for use in laboratories with restricted space, while its light weight allows easy handling and increased portability.




compliance with solar standards

Product information

Directions for use

The new SPREADMASTER developed by WENEOS (formerly HelioScreen) is a mini robot that enables reproducible application of suncare products with ease of use:

  • Switch on the unit,
  • Connect a computer and access the interface for spreading parameters,
  • Position the silicone finger and a
  • Apply the solar product to a PMMA
    substrate (HD6)
    sandblasted (SB6)
    equipped with a
    metal cradle
  • Place the sample in the instrument and close the door,
  • Then run a spreading cycle,
  • Recover the sample at the end of spreading and place it in the dark at a controlled temperature (using the THERMASTER).

Finally, the robotic device must be checked at regular intervals (at least every twelve months) to ensure compliance with mechanical and spreading specifications. This calibration of the X, Y and Z axes (including pressure) can be carried out automatically and in compliance with international standards.

Finally, the mechanical finger (Silicone Finger) must be replaced after every 400 spreading operations or when damaged.


Find all the elements needed to produce the in vitro part:

Technical information


Total dimensionsL: 317 mm x D: 687 mm x H: 583 mm
(Approx. 4 x smaller than the previous HD-SPREADMASTER version)
Total weight29 kg
(4x lighter than the previous HD-SPREADMASTER version)
Precision0.005 mm repeatability on X, Y and Z axes
(20x more precise than the previous HD-SPREADMASTER version)
Robotic arm
  • Six degrees of freedom (6 rotary joints)
  • Payload of at least 0.5 kg
  • Vertical force ( z-axis), adjustable by measuring at the center of the plate (with the mechanical finger and fingerstock, without displacement on the x and y axes), of (6.0 ± 0.5) N
  • Maximum tool speed of 1 m/s
MovementStep 1
Three circular cycles (one circular cycle corresponding to approximately eight circles per linear arrow, with continuous movement of circles at the hemispherical arrows between the four linear arrows covering the entire zone) with 90° rotation between each circular cycle.

  • First cycle (11.0 ± 0.5) s
  • Second cycle (11.0 ± 0.5) s
  • Third cycle (11.0 ± 0.5) s

Step 2
Three linear cycles (one linear cycle corresponds to approximately thirteen round trips covering the entire zone), with a 90° rotation between each linear cycle.

  • Fourth cycle (7.5 ± 0.5) s
  • Fifth cycle (6.0 ± 0.5) s
  • Sixth cycle (7.5 ± 0.5) s
  • ISO/DIS 23675 – In vitro SPF
  • ISO/CD 23698 – HDRS
  • ISO 24443:2021 – UVAPF in vitro
  • FDA monograph 2011 – Broad Spectrum
  • Boots Star Rating system 2011 – UVA/UVB ratio


ce sans quadrillage

  • Machinery Directive 2006/42/EC,
  • Design based on the standards ISO 10218-1:2011, IEC 60204-1/A1:2008, ISO 13849-1:2015, ISO 13849-2:2012, ISO 13850:2015,
  • 2014/30/EU Electromagnetic Compatibility Directive (EMC),
  • 2011/65/EU Restriction of the use of certain hazardous substances (RoHS),
  • 2011/35/EU Low-voltage Directive,
  • EN IEC 61326-1:2021,
  • EN IEC 61000-3-2 (2019) A1 (2021), EN IEC 61000-3-3 (2013) A1 (2019) A2 (2021), EN IEC 61000- 4-2 (2008), EN IEC 61000-4-3 (2020), EN IEC 61000-4-4 (2012), EN IEC 61000-4-5 (2014) A1 (2017), EN IEC 61000-4-6 (2013), IEC 61000-4-8 (2009).
Current90-264 VAC / 50-60 Hz
IP classIP40
Conditions of use
  • Temperature : [5°C – 45°C]
  • Humidity: [10% – 80%] non-condensing


Environmental features

Power consumption40 W on average
(3 x less power consumption than the previous HD-SPREADMASTER version)
  • Fairing with over 30% recycled plastic (100% recyclable plastic)
  • Robotic arms are made entirely of aluminum and all waste is recycled
ShippingApprox. 90% reduction in kgCO2e per shipment
(compared with the previous HD-SPREADMASTER version)




WENEOS (HELIOSCREEN COSMETIC SCIENCE) guarantees that the equipment has been carefully tested, inspected and has left the factory in good working order, free from visible defects. WENEOS (HELIOSCREEN COSMETIC SCIENCE) warrants the equipment to be free from defects in material and workmanship, under normal use and operation, for a period of one (1) year from the date of initial start-up or demonstration; or eighteen (18) months from the date of shipment from the factory; whichever occurs first. The warranty is limited to free replacement of all defective parts and free labor during the first warranty year. Defective parts replaced under this warranty will become the property of WENEOS (HELIOSCREEN COSMETIC SCIENCE). The above warranty is subject to the following conditions: The equipment is installed in France, in the European Union, or sold by authorized representatives of WENEOS (HELIOSCREEN COSMETIC SCIENCE) or their agents outside the continental United States. The equipment being installed is operated and maintained in accordance with WENEOS (HELIOSCREEN COSMETIC SCIENCE) operating instructions, maintenance instructions and specifications. Use only authorized WENEOS (HELIOSCREEN COSMETIC SCIENCE) parts and components. The use of a duly authorized representative for all work carried out on WENEOS (HELIOSCREEN COSMETIC SCIENCE) equipment during the warranty period. Any variation of the above warranty must be in writing and mutually acceptable to WENEOS (HELIOSCREEN COSMETIC SCIENCE) and the customer. The warranty does not apply to damage resulting from installation errors, or to any equipment that has been damaged, modified or misused by the purchaser. Equipment parts that would generally be considered consumable service items under normal use, such as fuses, fingertips, etc., are not covered by the warranty. THERE ARE NO WARRANTIES EXTENDING BEYOND THIS DESCRIPTION, AND EXPRESSLY NO IMPLIED WARRANTIES OR MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT SHALL WENEOS (HELIOSCREEN COSMETIC SCIENCE) BE LIABLE FOR ANY SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES OR LOSS OF ANTICIPATED PROFITS SUFFERED BY THE PURCHASER.


Made in France

Discover our products compatible for better results

Helioplate HD6

Molded PMMA plate

Helioplate SB6

Sandblasted PMMA plate

Latex finger cot

In vitro / In vivo

Size M – Powder-free – Non-textured

Silicone finger

In vitro

Spreading tool