Our poles are made from fibreglass reinforced polyester, completely covered in a solid 3-4mm shell of dyed polyethylene.
The inner layer has a high resistance to chemicals, moisture, vermin and pests, as well as physical impact.

Poles are manufactured in all standard lengths up to 16m. Longer lengths are available on request. 

Each pole is considerably lighter than the corresponding wooden equivalent. A Jerol G12 for example, is approximately 200kg and a Jerol E16 approximately 400kg.

The diameter of our composite poles is virtually the same from top to bottom. The diameter can vary depending on the pole length and load requirements. Poles with lower load requirements have an approximate diameter of 215mm and those with higher requirements an approximate diameter of 265mm.

The wall thickness varies from 10-25mm depending on the length and load requirements of the pole.

Jerol poles are climbed using the same equipment as wooden poles. See film: climbing.

A standard angle grinder with a diamond cutting disc can be used, or alternatively, a reciprocating saw with a fine-toothed blade. Fibreglass dust can irritate the skin so the appropriate protective equipment should be used. Chainsaws should not be used, as the composite material interferes with the chain. See film: cutting.

Predrilled holes are required and hex head screws are to be used. Holes should be drilled with a diameter of 0.5-1.0mm less than the thread diameter of the screw (see illustration). Self drilling screws with a coarse thread can be used. 

Guy-wires can be mounted using the same methods used for wooden poles.

If guy-wires are to be attached with U-nails, a predrilled hole is required. To ensure secure attachment, the diameter of the hole should be 1mm less than the staple.  See video: guy wiring with U-nails.

When installing in mountainous terrain, a regular strut pole bracket can be used

Poles are raised with “Grab John” in a similar way to wooden poles. Poles should not be lifted from the top, rather the best location is from the centre of the pole. See film: raising a composite pole.

Grab John should be used with care, as too much pressure can damage the pole. Poles should be transported with caution, as the stress on poles can quickly increase large in rough terrain.

Together with Huddig, Jerol has developed a pressure distribution device for Grab John jaws which is perfect to use when moving and erecting Jerol composite poles. The picture to the right shows this pressure distribution equipment mounted on Grab John jaws.

Poles are fitted with a base to prevent them from sinking in soft earth.

Every pole is fitted with Jerols trademark, product type, and year of production. This is mounted 4m from the bottom of the pole.

This is the same depth used for wooden poles, i.e. 2m. Similarly, our products are buried using the same method used for wooden poles.

To ensure that the year marker is 2m from the ground, a pole may require cutting. Cutting can be performed with an angle grinder or reciprocating saw.