Are you wondering how often you may need your industrial equipment inspecting? Ensure you’re always adhering to necessary regulations with ISI.

This table offers a guide to how often various items of industrial equipment require to be inspected. However, legislation may change from time to time. For the latest advice, please contact our expert engineering team on 01675 481779.

Inspection Guide Key

ST Inspections are required by statute at the interval shown.

SS Inspections are required by statute within the interval shown unless a written scheme of examination states otherwise.

SR Inspections are required by statute, and frequencies given are recommendations which can be varied depending on usage and/or risk assessment.

R Inspection recommended by the Government and/or Trade Association as a good practice with specified interval.

Note:
In addition to the above guidance, PUWER makes employers responsible for ensuring that any work equipment exposed to conditions causing deterioration which is liable to cause dangerous conditions is inspected at a suitable interval.

Pressure Systems Frequency (Months) Key

Compressed Air Pressure Plant

26

SR

Hot Water Boiler (over 100 C)

14

SR

Steam Boilers & Steam Ovens

14

SR

Steam Pressure Vessels

26

SR

Refrigeration & Air Conditioning Plant

26

SR

Other Pressure Systems

26

SR
Lifting Equipment Frequency (Months) Key

Building Hoists

6

SS

Cranes and Lifting Machinery

12

SS

Escalators

6

SS

Excavators

12

SS

Fork Lift Trucks

12

SS

Lifts and Hoists

6

SS

Lifting Accessories

6

SS

Lorry Loader Cranes

12

SS

Motor Vehicle Lifting Tables

6

SS

Passenger Lifts

6

SS

In all cases 12 months will be reduced to 6 months if used for lifting persons
Local Exhaust Ventilation Frequency (Months) Key

Dust Extraction (6 months for metal dust)

14

ST

Fume / Vapour Extraction

14

ST

Shot Blast Units (monthly in foundries)

6

ST
Power Presses and Power Machinery Frequency (Months) Key

Power Presses and Press Brakes
12 monthly where press has fixed guards only or enclosed tool

6

ST

Paper Cutting Guillotines

6

ST

Metal Cutting Guillotines

6

ST

Plastic Injection Moulding Machines

6

R

Whilst every effort has been made to ensure that the information is accurate and up to date, please note that the chart is only a simple guide. We do not accept any responsibility for any omissions or errors.