Nearest Maillefer contacts for USA
KN Manufacturing Solutions LLC
Fiber Optic
5464 Woodrun Ct
GA 30517 Braselton
Tel: +1 678 828 9868
Cell: +1 404 202 9655
com;ol.;nms;n/k;ine;iem;i.n;karMaillefer North America
Pipe & Tube
Phipps Bend Industrial Park<br />
402 Phipps Bend Road
TN 37873 Surgoinsville
Tel: +1 423 817 2440
Fax: +1 423 212 0131
om;a.c;rus;efe;ill;/ma;jonMaillefer North America
Wire & Cable
#1 Extrusion Drive
CT 06379 Pawcatuck,
Tel: +1 920-215-6628
om;d.c;dar;tan;s-s;avi;w/d;cho;jzaUsing the Entry Heat Treatment EHT method, heavy wall cores for HV and EHV cables can be manufactured in CCV lines with excellent roundness and concentricity with high repeatability. Sensitive Milliken type and taped conductors can be insulated with only moderate rotating without a risk of damaging the conductor. The method also extends the usability of standard cheaper insulation material with higher wall thicknesses.
Entry Heat Treatment EHT is applied when running high and extra high voltage cables in a catenary or a vertical CDCC line. In the EHT, the melt and the cross-linking of the insulation are under controlled heat treatment.
In the EHT the inner layer of plastics forms a solid layer around the conductor, creating a bigger supporting area for the outer plastics material and preventing it from drooping.
The outer layer of the insulation is cooled down at the beginning of the catenary section, and thus the cable geometry remains round as it is extruded.
After the EHT section, the curing process works so that the outer layers, while being cured, are supported by the solid inner layers. After this the round form is supported by the cross-linked outer layer.
Nitrogen circulation unit
The EHT circulation unit consists of a gas circulation blower, a heat exchanger, 3 pieces of by-product outlets and all necessary valves and instruments. All these components have been installed on the same frame, which forms one complete unit.
The EHT circulation unit is ready-fitted and completely tested.
| Cooling capacity | 33 kW |
| Weight approx. | 1700 kg |
| Dimensions L x W x H | 3873 x 1200 x 2279 mm |
| Nitrogen flow capacity | 300 mᶟ/h at 10 bar (q) |
Exact values depend on the assembly.
28.2.2020
One of the new trends in power cable manufacturing is the rise of PP (polypropylene) based thermoplastic materials for the medium voltage application. Currently, these cables are predominantly XLPE and rubber, but now advances in material development make it possible to also consider thermoplastics. Read more
26.2.2020
The performance of extruded high voltage XLPE insulated cables is improvable by reducing the degassing burden and realizing longer extrusion run times. Development towards those goals was rendered possible after years of close technical collaboration with material suppliers and cable manufacturers. Read more
12.2.2020
Solutions in Artificial Intelligence are developing rapidly and have invested our product portfolio. We employ the latest AI technology to help our customers create value from their data. The core of AI lies in automated information extraction. Read more
5.2.2020
As the biggest plastics event took place in Germany, the question of where we stand in terms of sustainability has grown in importance. Where to begin? Maillefer looked at different functions within its organization and surprisingly realized that certain progress has been made. Read more
29.1.2020
Flexible vulcanized joints (FVJ) also known as flexible factory joints are typically used in extending delivery lengths of extruded subsea cables. Lengths of XLPE insulated cable core are often limited by the capacity of extrusion, degassing or basket lay-up. Factory joints overcome these constraints. Read more
23.1.2020
Wishing Happy Chinese New Year 2020 Read more
22.1.2020
Since two decades, Maillefer has been providing production systems for manufacturing multi-layer composite pipe with diameters ranging from 14 to 32 mm and from 16 to 63 mm. Today, our two model lines, the PCL32 and PCL63 that cover the two size ranges have evolved much. We are closer to 60 m/min, which first presented serious challenges to polymer and aluminum tape suppliers. Read more
15.1.2020
What is the Bluebox, and why blue in particular? Industry 4.0 has passed through here and with it a fresh way of looking at and consolidating information coming from your factory floor. Read more
