MI57 MIGHTYLITE block, length 30m

The MI57 – Mighty LIte 40m Galvanized wire self-retracting lifeline is a compact and easy to use block while offering a heavy duty performance. It includes a pressed steel housing, stainless steel springs, a fall indicator and a swivel snap hook. Suited to the building and construction industry.


    • Aluminium alloy and stainless steel housing
    • 4.8mm galvanised steel cables
    • Zinc plated steel snap hook connectors
      • 19mm opening
      • 2000daN breaking strength
    • Length 710mm, width 320mm, thickness 145mm, extended length 30m
    • Aluminium alloy and stainless steel internal mechanism
    • Weight 23.6kg


  • Operating temperatures of -30°C to +50°C



  • Fall blocks provide safety and freedom of movement while working

Product Description

Self-retractable fall arresters are predominantly designed to work in a vertical position, and before use it is advisable to see whether there is no possibility of pendulum movement and that the cable is protected from any chance of being cut or damaged.  Once the device has experienced a fall arrest it will need to be returned to the manufacturer to be checked.

The MI57 can be connected to a reliable anchorage point by its karabiner.

The anchorage point must be:

  • Have a resistance to 12KN
  • Be situated above the operator
  • Be vertical to the work surface
  • Have no sharp edges

The connector at the end of the cable must be connected to the fall arrest anchorage of the harness.

The lifespan of the product is 10 years, and should be inspected regularly before use.


E.C. Declaration of Conformity

EC Category PPE

Quality Assurance
ISO 9001 / 2000

EC Certificate Number

EC Attestation
EC Attestation

EC Attestation Number