8-20mm OPGW Cable Gripper Come Along Clamp with 25KN Rated Load and 3.8KG Lightweight Body

The load path question

Inside an OPGW the optical unit sits between the strength members and the outer strands. A grip that squeezes the whole cross section to develop holding force also squeezes the fibre unit, and the damage usually shows up later as attenuation rather than as a broken cable on site. This gripper is built so the clamping force lands on the outer strength layer and the load path runs around the core rather than through it.

Four catalogue entries accept cable from 8mm to 20mm at rated loads between 16KN and 25KN, plus a 45KN row for the 20mm cable. Weights sit at 3.8KG and 5.6KG, which is light enough to handle at height with one hand free for the clamp.

Catalogue rows

Choosing the row

• Start from the measured cable diameter, then look at the rated load the section demands. The 20102 row is the one that carries 20mm cable at 45KN.
• Where a diameter falls in two rows, choose on load and on the jaw profile rather than on weight.
• Do not stretch a row to cover a diameter it was not cut for: an oversized opening lets the cable sit off centre and loads the jaw unevenly.
• Confirm whether the cable is OPGW, ADSS or another fibre construction, since the outer layer that carries the grip differs.

Working with fibre cable

Feed the cable to full jaw depth so the contact length is used, and close the clamp without letting the cable twist. Fibre cable is stiffer in torsion than it looks, and a half turn put in at the clamp stays in the span. Take up tension slowly for the first metre and watch the cable entry: a fibre cable that is being pinched will usually sit high in the jaw before anything else shows. Release tension before opening the clamp at the end of the pull, and inspect the sheath under the jaw for flattening before the cable is accepted.

Dispatch checks

• Jaw liner inspected; any score or embedded grit rejected.
• Opening measured against the row it is packed as.
• Rated load marking verified on the body.
• Plywood case packing, 3000 PCS per month capacity.

Notes on the data

The rows, diameters, rated loads and weights above are transcribed from the current OPGW gripper datasheet. This page does not publish an attenuation or signal loss figure, does not claim the clamp suits every fibre cable construction, and does not state a certification beyond the ISO entry in the attribute table. If a project needs a grip test on a cable sample, raise it with the enquiry before the order is placed.

Questions we hear

What is the difference between the 20101 and 20102 rows?

Both are listed at 3.8KG. The 20102 row carries 20mm cable at 45KN, while the 20101 row covers 8-20mm at 25KN.

Will it crush the fibre unit?

The jaw is profiled to load the outer strength layer. Damage risk still depends on correct seating and on not over tensioning beyond the rated load.

Can the same clamp be used on ADSS?

Confirm the cable construction with the enquiry. The grip relies on the outer layer, which differs between OPGW and ADSS.

Trade terms?

1 PCS minimum order, L/C or T/T, 3-7 days for stock.