Australian Standards AS 1418.2 and AS 4991 outline the safety, testing, and compliance requirements for trolleys and clamps used in lifting operations. These standards ensure equipment is rated correctly, tested properly, and safe for use under load. If your trolleys or clamps do not comply, your lifting system is not legally safe and may put workers at risk.
What Are AS 1418.2 and AS 4991?
AS 1418.2 and AS 4991 are two core Australian Standards for lifting equipment. They specify how trolleys, clamps, and lifting devices must be designed, tested, marked, and maintained.
- AS 1318.2 covers trolley systems and hoists
- AS 1991 covers lifting devices such as clamps, spreader bars, and lifting attachments
These standards exist to protect workers and prevent lifting failures caused by incorrect design or inadequate testing.
These standards define how lifting equipment must be made, tested, and labelled to ensure safe use.
Why Do These Standards Matter?
Lifting equipment carries significant risk. If a trolley or clamp fails, the consequences can include dropped loads, serious injury, or structural damage. Compliance ensures:
- Correct lifting capacity
- Safe working load limits
- Reliable materials and design
- Documented testing and traceability
- Reduced likelihood of catastrophic failure
Compliance ensures lifting equipment performs safely and predictably under real working conditions.
What Does AS 1418.2 Require for Trolleys?
AS 1418.2 focuses on safe design and operation of trolleys, powered hoists, and related components. For trolleys, the standard requires:
1. Accurate Load Ratings
Trolleys must be labelled with a clear Working Load Limit (WLL). This ensures the trolley is used within its safe lifting capacity.
2. Safe Design and Construction
Trolleys must be designed to prevent derailment and must operate smoothly on the appropriate beam size.
3. Manufacturing Quality
Wheels, bearings, gears, and frame components must meet strict strength requirements.
4. Testing and Verification
Trolleys must undergo load testing before use. Test results must show the trolley can safely support its rated capacity.
5. Clear Marking and Identification
Each trolley must display:
- WLL
- Manufacturer name
- Model or batch number
- Beam size range
AS 1418.2 ensures trolleys are designed, tested, and marked correctly for safe operation under load.
What Does AS 4991 Require for Clamps?
AS 4991 covers lifting devices, including clamps used to grip, hold, or suspend loads. The standard applies to:
- Beam clamps
- Plate clamps
- Girder clamps
- Universal clamps
Key Requirements Include:
1. Design for Rated Load
Clamps must be able to support their full WLL with an appropriate safety factor.
2. Proof Testing
All clamps must be proof tested before sale. Testing typically involves loading the clamp above its WLL to confirm it will hold safely.
3. Safe Clamp Mechanisms
Clamping jaws must grip securely without slipping or damaging the load. |