Can an older machine be upgraded?
Review practical options for second-hand, relocated and modified equipment.
Legacy machinery guarding →Customer resources and answers
Machine guarding resource hub.
Find the right page for repairs, PUWER remedial work, older machinery, interlocks, project costs, shutdown planning and handover.
At a glance
Machine guarding retrofit: the short answer.
A retrofit upgrades an existing machine so people cannot reach dangerous movement during normal use and foreseeable tasks. The solution may combine fixed barriers, interlocked access, guard locking, safety controls and documented testing.
For the complete planning sequence, read the machine guarding retrofit guide. This resource hub routes engineering managers, production teams and health and safety professionals to the right specialist page.
Explore by need
Find the most relevant retrofit guidance.
Repair or replace?
Understand when a panel, door, frame or device needs repair or redesign.
Machine guard repairs →What does Regulation 11 mean?
See how guarding findings can become a defined remedial engineering scope.
PUWER guarding upgrades →When is controlled access needed?
Review switches, guard locking, stopping, reset and restart considerations.
Interlocked guard upgrades →When should polycarbonate be replaced?
Look at damage, visibility, material, thickness, frame and fixing details.
Clear panel replacement →What affects retrofit cost?
Prepare photographs and project information that make quotations more useful.
Retrofit cost guide →A complete project
Questions that should be answered before manufacture.
Hazard
What movement, ejection, heat or process risk must the guard control?
Access
Who needs access, how often, for which production or maintenance task?
Stopping
What happens after a stop command and can the hazard be reached first?
Evidence
Which drawings, calculations, tests and records belong in the handover?
Questions customers ask
Clear answers before a site survey.
What is a machine guarding retrofit?
A machine guarding retrofit is an engineered change to existing machinery that adds or improves physical guards, controlled access and related safety functions without automatically replacing the complete asset.
Does PUWER Regulation 11 require fixed guards?
PUWER Regulation 11 follows a hierarchy. HSE says fixed guarding will normally be used to prevent access to dangerous parts, with other guards or protective devices used where fixed guarding is not practicable and access needs justify them.
Can safety interlocks be retrofitted?
Yes. The guard construction, stopping time, device mounting, safety circuit, reset and restart behaviour must be considered together rather than treating the switch as a stand-alone part.
What should a guarding handover include?
Depending on scope, handover may include approved drawings, device information, inspection and functional test records, known assumptions, exclusions and remaining actions.
Useful next steps
Continue with the right project detail.
Plan a complete retrofit
Work through hazards, access, guard choice, controls, shutdowns, cost and handover evidence.
Read the retrofit planning guide →Implement PUWER findings
Turn a customer assessment or action list into a defined guarding and safety-upgrade scope.
PUWER remedial upgrades →Move from question to scope
Use a retrofit feasibility and quotation survey to confirm the practical engineering boundary.
Request a site survey →Start with the machine and the task
Send photographs and a short description.
Tell us the machine, hazard, access requirement, site location and target shutdown. We will help define the most useful first step.