Product Safety Report: Diferro Calenders - Sublimation Calender Presses – All Models featuring a sealed oil-filled heated drum – Including DP-series, MP-series, DM-series, DE-series, DR-series, DX-series, DF-series (2402-0018)
Published by Office for Product Safety and Standards (OPSS): · Ref. 2402-0018
Reason for the recall
- The product presents a serious risk of explosion and fire.
Reasonsee the original notice
Brandnot stated
Batch number(s)not stated
Barcodenot stated
Product
Diferro Calenders - Sublimation Calender Presses – All Models featuring a sealed oil-filled heated drum – Including DP-series, MP-series, DM-series, DE-series, DR-series, DX-series, DF-series
- Category
- Machinery
- Country of origin
- Turkey
- Type of recall
- Product safety report
- Product: Diferro Calenders - Sublimation Calender Presses – All Models featuring a sealed oil-filled heated drum – Including DP-series, MP-series, DM-series, DE-series, DR-series, DX-series, DF-series
- Hazard: The product presents a serious risk of explosion and fire.
- Corrective action: In light of a second explosion and fire, the Health and Safety Executive (HSE) are now updating advice to users of all Diferro calender presses with a sealed oil-filled drum. For further information, please see the PDF linked below.
- Product information
- Type
- Machinery - Piece & Roll to Roll Sublimation Calender Press
- Models
- All Diferro sublimation calender press models featuring a sealed oil-filled heated drum. These include but are not limited to DP-series, MP-series, DM-series, DE-series, DX-series and DF-series models. The model can be identified from the manufacturer’s identification plate as highlighted in red in the image included in the PDF below. For example where ‘DP-20B600C’ represent a DP model series followed by the drum length and diameter (e.g. 2.0m x 600mm). A separate Serial Number (e.g. D-***) and Year of Manufacture are also displayed on the plate.
- Country of Origin
- Turkey
- Product Description
- Industrial sublimation calender press machines used to transfer designs onto fabrics or other materials. The press has a sealed oil-filled heated drum (roller), which is used to apply pressure and heat to transfer the designs. The machine incorporates a weekly programming function which allows the user to pre-heat the drum (roller) to a set temperature at a specific date and time. The machine also incorporates a cooling cycle. These features do not require an operator to be in attendance.
- Product Report and Image
- Link to images and PDF
- Hazard
- Sublimation calender presses within the scope of the corrective action have been identified as presenting a serious risk of explosion and fire.
- Two catastrophic Boiling Liquid Expanding Vapour Explosion (BLEVE) incidents have now occurred involving Diferro machines. Evidence suggests that in both cases the machines had been left unattended and connected to the electrical power supply and that uncovenanted and uncontrolled heating of the oil-filled drum has occurred. The built-in temperature control system has then also failed to operate to prevent overheating and over-pressurisation of the sealed drum (roller). No external source of heat has been present to cause the overheating of the oil-filled drum.
- There is potential for system control failure to result in unplanned uncontrolled heating of the oil-filled drum at any time when the machine is connected to the electrical power supply, including when left in standby mode after the normal cool-down cycle has completed and when using weekly programme function (timer mode). If the machine is unattended when this occurs failure to promptly shut down and isolate from the power supply may result in overheating and catastrophic failure of the drum and a BLEVE. The potential explosion and any subsequent fire is likely to cause catastrophic damage to the building and its surroundings, with potential for multiple fatalities and significant property destruction.
- The original Programmable Logic Controller (PLC) within the control system of these calender presses does not meet any required safety performance level. There is no independent secondary temperature monitoring and control system.
- The product does not meet the requirements of the Supply of Machinery (Safety) Regulations 2008.
- Corrective action
- GB suppliers have been asked to stop selling Diferro calender presses containing a sealed oil-filled heated drum until further notice.
- GB suppliers have previously been asked to inform all persons supplied with Diferro calender presses containing a sealed oil-filled heated drum (DP-series, MP-series, DM-series, etc), that until further notice:
- These machines must not be operated using the weekly programming function.
- These machines must not be left unattended whilst connected to power.
- In light of a second explosion the Health and Safety Executive (HSE) are now updating advice to users of all Diferro calender presses with a sealed oil-filled drum.
- The HSE instructs users to cease operating these machines until a second, independent Safety-Related Control System (SRCS) has been fitted. The second SRCS is required to monitor the calender’s drum temperature and must be designed, installed, and validated in accordance with safety standard BS EN ISO 13849 Parts 1 and 2. Details of the requirements are given in Appendix 1. Appendix 1 is included in the PDF linked above.
- Users will also need to implement systems of work to ensure that the primary control system and this secondary SRCS are maintained and tested at appropriate intervals. The machine should be taken out of operation in the event of any anomalies in temperature monitoring/control or upon activation of any alarms or the secondary SCRS. Use should only resume after the cause of the alarm or SCRS activation has been established and rectified.
- If users deem the continued operation of these machines to be essential whilst they arrange installation of a second SCRS, they must ensure that the machine is attended and monitored at all times when connected to the electrical power supply. This includes standby, pre-heating, normal running, and the cool-down cycle stages. Details of the precautions and system of work required are given in Appendix 2. Appendix 2 is included in the PDF linked above.
- The interim measures described in Appendix 2 are considered to be short-term emergency arrangements which, if correctly implemented and managed will reduce the likelihood of fire and explosion, but cannot be relied upon as a long-term solution.
- The installation of the SCRS should be completed immediately, and no later than six weeks from the issuing of this alert.
- HSE has contacted all known users to share the original product alert (04/04/24) and will continue to share all revisions to th
What to do
- In light of a second explosion and fire, the Health and Safety Executive (HSE) are now updating advice to users of all Diferro calender presses with a sealed oil-filled drum. For further information, please see the PDF linked below.
- Product information
- Type
- Machinery - Piece & Roll to Roll Sublimation Calender Press
- Models
- All Diferro sublimation calender press models featuring a sealed oil-filled heated drum. These include but are not limited to DP-series, MP-series, DM-series, DE-series, DX-series and DF-series models. The model can be identified from the manufacturer’s identification plate as highlighted in red in the image included in the PDF below. For example where ‘DP-20B600C’ represent a DP model series followed by the drum length and diameter (e.g. 2.0m x 600mm). A separate Serial Number (e.g. D-***) and Year of Manufacture are also displayed on the plate.
Source: Product Safety Alerts, Reports and Recalls (OPSS) — Office for Product Safety and Standards (OPSS)
Source: Office for Product Safety and Standards, GOV.UK. Contains public sector information licensed under the Open Government Licence v3.0. EU Safety Radar is an independent information service; the text above presents the official data in the original language — the notice published by the authority is authoritative.
Open the original notice (www.gov.uk) ↗ Official document (PDF) ↗