The Usual – Pint of Science Revisited
Please to report that the Pint of Science festival allowed an engineer through the door to speak on their work. Steve Holland of SJH Projects
May 19, 2026
The isolation of suspect mail using Mailsafes is all about personnel safety and business continuity. Postal devices, or devices designed to look suspicious, create a lot of disruption to the targeted organisation. Should a device detonate in a mail room it can create a large ‘scene of crime’, leading to extended closure of the mail room and replacement and repair of damaged equipment. This is all a drain on an organisation’s resources and capabilities. To be able to place such a suspect device in a purpose designed and built container allows staff to evacuate knowing that a detonation and the associated forensic evidence will be contained and so minimise the impact to ongoing activity.
If you screen your mail, you should think about a Mailsafe
The Mailsafe 100 is used worldwide alongside mail screening operations. This particular variant is popular for smaller operations, as it can be tucked away under most standard work surfaces when not required. It is then pulled easily into the middle of the room when required.
The Mailsafe 110 can often be found at the end of the conveyor X-Ray screening units used for larger throughput operations and mailrooms. It has the same working blast protection structure as the Mailsafe 100 but this top opening style has proved to be very popular.
In response to customer requests we have finished development of the large Mailsafe 200 system. This uses all the proven elements of the established Mailsafe 100 range in a larger form.
The first units will be supplied as an enclosure for batch testing of electric pressure cookers.
The Mailsafe 200 has an internal volume of 24″/ 713mm cubed. This is large enough to take the largest standard boxes from DHL, Fedex, TNT, UPS and the Royal Mail/Post Office.
Security screening of incoming mail has become a critical practice for protecting the safety, integrity, and confidentiality of an organization’s operations. This process involves examining letters, packages, and other postal materials for potential risks such as hazardous substances, explosives, or unauthorized postal devices.
The primary need for security screening arises from the fact that mail can be a vector for physical threats. There have been many documented cases where harmful materials, including biological agents or explosive devices, have been delivered through the postal system, targeting individuals or institutions.
Criminals of note who made campaigns out of repeated postal devices include the American, Ted Kaczynski, who the authorities nicknamed the ‘Unabomber’ and Edgar Pearce in the UK who named himself the ‘Mardi Gra’ bomber.
Businesses and organizations that handle sensitive information, valuable assets, or have a high public profile are particularly vulnerable to such threats. Without proper screening, these dangers can result in severe consequences ranging from physical harm to employees, disruption of business operations, legal liabilities, and damage to reputation.
By implementing security measures such as X-ray scanning, chemical detection, or manual inspection, organizations can identify suspicious content before it reaches employees, reducing the risk of cyber and physical breaches.
The benefits of security mail screening extend beyond immediate threat prevention. First, it enhances employee safety and peace of mind, creating a secure workplace environment. When employees trust that their employer is proactive about security, it can boost morale and productivity. Second, it helps maintain business continuity by preventing interruptions caused by evacuation, investigation, and mitigation efforts that follow a security incident. Third, it protects the organization’s reputation by demonstrating a commitment to safety and risk management, which can be crucial when dealing with clients, partners, and regulators.
Furthermore, mail screening can be integrated into a broader security strategy that includes visitor management, digital security, and emergency preparedness. By doing so, organizations create layered defences that make it significantly more difficult for threats to succeed. The investment in mail screening technology and trained personnel is justified by the reduced risk of costly incidents and the preservation of organizational integrity.
Please to report that the Pint of Science festival allowed an engineer through the door to speak on their work. Steve Holland of SJH Projects
A discussion at the DSEI defence show in London posed the question on the possibility of adapting our Detsafe technology to safely contain an array
We have recently completed the design phase for a novel blast/pressure containment vessel. This will allow the customer to perform research and proofing of their
