Factor 4 - Safety and compliance

Last updated Aug 31, 2026, 5:46 PM UTC

Read the important notices in this article to ensure the safety of the UltiMaker Factor 4 and its operators. Additionally, this page contains compliance and regulatory information.

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This information is included with the printer in the Safety & Warranty information booklet. This can also be downloaded as a PDF document (available in 21 languages).

Safety messages

The information provided below applies to the UltiMaker Factor 4 when used with its original and optional additional compatible UltiMaker accessories (“UltiMaker products”).

The following ISO warning symbols are used in the user manual and on the printer:

Missing source image: M002-User-manual.png (source ref: 0EM5b00000Em5RJ)	Read the user manual (ISO 7010-M002) Before using this product, read the complete user manual to learn about all its features and safety-related information. This symbol is placed on the gantry, on the back panel, and inside the back compartment.
Missing source image: ISO-W001.png (source ref: 0EM5b00000Em5RO)	Warning (ISO 7010-W001) Warns of a situation that may cause material damage or injuries if the safety instructions are not followed.
Missing source image: ISO-W006.png (source ref: 0EM5b00000Em5RT)	Magnetic field (ISO 7010-W006) This product contains magnets. Magnets are used in the build plate, print head, and Material Station door. Ensure a distance of > 4 cm from sensitive electronic equipment and any implanted electronic medical devices.
Missing source image: ISO-W012.png (source ref: 0EM5b00000Em5Rn)	Electricity hazard (ISO 7010-W012) This printer uses mains power, which is hazardous when touched. This symbol is placed on the power supply.
Missing source image: ISO-W017.png (source ref: 0EM5b00000Em5Rs)	Hot surface (ISO 7010-W017) The print head and build plate of this product can reach high temperatures. Always allow the machine to cool down before reaching inside. This symbol is placed on the print head and build plate.
Missing source image: ISO-W024.png (source ref: 0EM5b00000Em5Rx)	Crushing of hands (ISO 7010-W024) This product contains moving components. Never reach inside the printer while it is in operation. For maintenance processes, always follow the instructions on the display. This symbol is placed on the gantry and underneath the build plate.

For formatting reasons, the icons are not used in the warnings and hazards listed on this page. Please refer to the user manual or safety and warranty booklet or PDF.

In support articles on this website, the following formatting is used:

tip

Useful tips and tricks.

note

Highlights important additional information to help prevent problems.

warning

Information that will cause problems, damage, or safety concerns when not followed.

General safety information

Intended use and required skill level

UltiMaker products shall only be used by persons who have carefully read and understood the user manual and the safety provisions in it.
The UltiMaker Factor 4 is targeted for professional and/or light industrial use and can be used by ordinary, instructed, and skilled persons. This manual describes operations that may require different levels of qualifications to ensure safety. See definitions below.
Unless stated otherwise in the respective (maintenance) instructions, maintenance activities shall only be carried out by skilled or instructed persons. Where stated so, specific activities can be carried out by ordinary persons as well.
This product is not intended for use by children. This equipment is not suitable for use in locations where children are likely to be present.
UltiMaker products are not intended for use by persons with reduced physical and/or mental capabilities, or persons with a lack of experience and knowledge, unless they are supervised or have been given instructions concerning the use of the appliance by a person responsible for their safety.

Definitions of ordinary, instructed, and skilled persons:

Ordinary person. A person other than an instructed or skilled person. Ordinary persons can start and remove print jobs and perform basic operations such as loading material or changing print cores, provided they have read and understood the manual and safety instructions. Performing other actions is only allowed when explicitly stated in the respective manuals (including e.g. maintenance instructions).
Instructed person. Someone who has been instructed and trained by a skilled person. Instructed persons are allowed to perform the same actions as an ordinary person, plus maintenance actions as indicated in the manuals. Can perform actions of a skilled person when supervised by a skilled person who is responsible for the instructed person's safety, e.g. as part of a training to become a skilled person.
Skilled person. A term applied to persons who have been trained or have experience in the equipment technology, particularly in knowing the various energies and energy magnitudes employed in the equipment. Skilled persons are expected to use their training and experience to recognize energy sources capable of causing pain or injury and to take action for protection from injury from those energies.

General safety notices

UltiMaker 3D printers generate high temperatures and have hot moving parts that can cause injury. Never reach inside UltiMaker 3D printers while they are in operation. Control the printer using the touchscreen, power switch, or via UltiMaker Digital Factory.
The red stop button at the front of this product can be used to instantly stop the printing process. Please note that pressing this button will stop the supply of power to moving and heating parts, but surfaces may still remain hot for a while.
Allow the UltiMaker 3D printers to cool down sufficiently before reaching inside, unless explicitly stated otherwise for certain (maintenance) processes. Always wait until the display indicates that the build plate has cooled down to a safe temperature.
Do not change or adjust any parts of the product unless the change or adjustment is authorized by UltiMaker.
Do not store items inside UltiMaker products, except compatible material spools in the Material Station.
Do not store items on top of the UltiMaker Factor 4 and never cover the exhaust vent in the top panel.
When performing maintenance procedures, follow the guided procedures in the printer's firmware where possible. Otherwise, turn off the printer to ensure new print jobs cannot start unexpectedly.
If the door must be opened to remove the print, change the printer configuration, or for maintenance or repair actions, close the door immediately afterward to prevent the risk of bumping into it.

Hazards

Electrical safety

The UltiMaker Factor 4 is powered by mains voltage, which is hazardous when touched. The power supply and electronics are located at the back of the printer. Always turn off the printer and disconnect the power cable before removing the back panel. Only skilled or instructed persons should remove the back panel while the power is on. Always check local regulations.
Always reinstall the back panel after maintenance and/or service actions.
A mains socket with a protective earth/ground terminal must be used. Make sure that the building installation has dedicated means of over-current and short-circuit protection. Please use a dedicated circuit breaker with a current rating not exceeding 16A.
Only use the original power cable supplied with the device. Do not damage, cut, or repair the cable. A damaged cable should be immediately replaced with a new one.
Always unplug the product before performing maintenance or modifications, unless explicitly stated otherwise for certain (maintenance) processes.

Mechanical safety

Pinching and entanglement hazard. Do not reach into the gantry area of the printer during operation due to a pinching hazard. Do not lean over the gantry during operation and/or maintenance due to risk of entanglement of hair, jewelry, and/or scarfs. This may cause minor pain, but no significant injury to the user is expected from pinching or entanglement by the drive belts or X beam.
Crushing or pinching hazard. The force of the build plate is limited but may cause minor injury, so stay out of the reach of the build plate during operation.
Keep the door closed during operation unless explicitly stated otherwise for certain (maintenance) processes. The printer will pause when the door is opened during printing.

Risk of burns

Hot surface hazard. There is a potential risk of burns: the print heads of the UltiMaker 3D printers can reach temperatures above 200 °C, while the heated bed can reach temperatures above 100 °C. Do not touch either of these parts with your bare hands. This symbol is placed on the print head and on the build plate to warn the user about this hazard.
Allow the UltiMaker 3D printers to cool down sufficiently before reaching inside, or performing maintenance or modifications, unless explicitly stated otherwise for certain processes. Always wait until the display indicates that the build plate has cooled down to a safe temperature.

Emission hazard

During 3D printing, Ultrafine Particles (UFPs), Volatile Organic Compounds (VOCs), and other chemical substances may be emitted. Above certain concentrations (Threshold Limit Values, TLV), these emissions can pose a risk. Concentrations are influenced by the filament and adhesive used, print conditions (e.g. print temperature), room volume, Air Exchange Rate (AER), and number of printers in a room.

The UltiMaker Factor 4 has an integrated air management system with a HEPA filter, which filters Ultrafine Particles generated during the 3D printing process.

UltiMaker products are designed for use with UltiMaker materials and are open for use with materials from third-party suppliers.

Safe use information for UltiMaker materials. UltiMaker materials can be printed safely without any additional filtering using the recommended temperatures and settings in a well-ventilated area (minimum refresh rate or AER of 1.8 for a room size of 30.6 m3). When multiple UltiMaker 3D printers are operated in a contained environment, concentrations of UFPs and/or VOCs will increase. Depending on the specific situation, please consider other safety measures, such as a dedicated ventilation system.
Safe use information for third-party materials. Make sure to check with your material supplier whether additional risks and safety measures apply. Additional safety measures may be required for the safe usage of such materials. Always take the relevant information provided by the supplier of third-party materials into account for safe operation. Please check the safety data sheet of each specific material for information. UltiMaker cannot be held responsible for any adverse effects from the use and/or performance of third-party materials.

Magnetic field

Static magnetic field hazard. Due to the static magnetic field caused by the magnets in the printer, keep a distance of at least 4 cm (1.5 in) between these magnets and any implanted electronic medical devices and implants containing ferromagnetic materials. Magnets are used in the build plate, print head, and Material Station door.

Personal protective equipment

The following items are recommended for working safely with the UltiMaker Factor 4, especially for performing maintenance actions:

Tweezers. These are required for safely removing material residue from the tip of the nozzle.
Thermal gloves. Recommended when cleaning the nozzle, as the nozzle will be hot during these procedures.
Protective gloves. Recommended when removing brims or support structures from the printed parts, or when using tools to remove objects from the build plate.
Safety glasses. Recommended when removing support structures, performing certain post-processing tasks, or in other situations with an increased risk of injury.

Regulatory information

Electromagnetic compatibility

This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to part 15 of the FCC Rules and the EMC Directive 2014/30/EU. These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment.

This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with the instruction manual, may cause harmful interference to radio communications. Operation of this equipment in a residential area is likely to cause harmful interference, in which case the user will be required to correct the interference at their own expense.

EC Declaration of conformity

The UltiMaker Factor 4 is compliant towards the essential requirements and other relevant provisions of the Machinery Directive 2006/42/EC, EMC Directive 2014/30/EU, RED 2014/53/EU, RoHS Directive 2011/65/EU, and WEEE Directive 2012/19/EU.

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Additional country-specific compliance information, where relevant, can be found on the compliance label at the back of the printer.