Open Coil Insert for Concrete Formwork

The Open Coil insert for construction is designed to enlarge and increase the shear cone surface area, which in effect increases the load capacity of the insert without increasing the insert’s corresponding length. This is a very versatile insert used for many functions, lifting precast boxes, manholes or other utility shapes.
Product description

The Open Coil insert for construction is designed to enlarge and increase the shear cone surface area, which in effect increases the load capacity of the insert without increasing the insert’s corresponding length. This is a very versatile insert used for many functions, lifting precast boxes, manholes or other utility shapes.

The Open Coil insert for construction is available with an attached mounting washer welded to the front end of the insert. Mounting washers have 2 nail holes for nailing the insert to a wood form or bolting to a steel form. Standard sizes shown below. Custom sizes available upon request and is available in plain, hot dip galvanize, or stainless steel finish.

The Structure coil tie for construction, when  used as inserts for lifting and handling thin wall precast elements, are extremely effective. Structure coil tie for construction are available with an optional B3  Screw-on Coil for use with the B30 Screw-on Plastic Cone to set the  insert back from the face of the concrete. Minimum spacing between  inserts is twice the corner distance.

Ties are available in 1" diameter standard, 1-1/4" standard and heavy configurations.

Safe working load is based on an approximate 2:1 safety factor.

Note: If electron-plating of coil ties is required, special procedures may be necessary

to prevent hydrogen embrittlement effects

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How do we use it ?See the picture

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