Halfen - Threaded lifting system

Introduction

Threaded Lifting loops can be used with all sizes of threaded inserts. They are the most economic lifting loop and are suitable for most applications, particularly site operations. They are not suitable for turning/pitching. They may be reused subject to the inspection procedure, detailed below, but they are not recommended for severe re-use conditions.

Threaded Lifting loops should only be attached to the unit after the concrete strength has reached 15 N/mm2. In some cases it may be economic and practical to leave the loops with the unit until final installation.

Description

Threaded Lifting loops are manufactured from high grade steel wire, swaged in a steel ferrule and finished with zinc plating. They are clearly marked with their SWL. The thread type is Rd/M, which is compatible with both metric and Rd inserts. Threaded Lifting loops are suitable for use with inserts cast in flush with the face of the unit, or recessed using the recess formers shown opposite.

Testing/identification

All Halfen devices are proof loaded before dispatch and labelled with a unique code number. This number is recorded in the QA department at Halfen Ltd. If loops are kept in the stores and reused they must be inspected every six months and retested every year.