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;jzaOur Water Cooled Extruder NMR 80 is designed to process all rubber cable materials with high productivity and extrudate quality. Experience behind our thousands of deliveries ensure trouble free operation of your extruder for decades.
Our Water Cooled Extruder NMR 80 is designed to process thermally sensitive polymers and elastomers at low temperatures. Typical materials are semiconductive, sheathing and insulation rubbers in stripe and granular form.
Extruder barrel
The barrel material is nitrided steel nitrided to the mimimum depth of 0.4 mm. The feed section has a smooth exchangeable bushing.
Hydraulic feeding roller for stripe rubber
The rubber stripe is fed with a roller. A hydraulic unit and a motor for the roller are included.
Power transmission
An AC or a DC motor is mounted with a flange onto the gearbox body. The motor is connected directly to the primary shaft of the gearbox with gear coupling.
Temperature control system
Each zone in the extruder barrel has separate temperature control. The barrel is heated by resistors moulded in cast aluminium heating elements. The pressurized, closed cooling water system includes cooling pipes and proportional valves. The cooling pipes are wound around the barrel. The cooling system is connected to the water station. Temperature in each zone is measured by thermocouples located tangentially close to the inside surface of the barrel. The thermocouple reacts quickly to changes in the process conditions providing fast feedback control for heating and cooling. To control heating and cooling each zone has a PID-controller. The feedbox has separate cooling water circulation regulated by an adjustable ball valve.
Pressure control
Melt pressure is measured at the barrel end. The maximum allowed pressure can be preset in line control. Overpressure activates an alarm. A pressure fuse at the barrel end acts as a mechanical guard, releasing the pressure if its nominal value is exceeded. Cables between the extruder and control cabinet are included in the delivery, except the optional motor cable. Screw cooling parts with a rotating connector and hoses are included in the delivery.
| Screw diameter | 80 mm |
| Screw operation length | 14-20D |
| Screw speed, max. | 40 rpm |
Exact values depend on the assembly.
12.9.2019
New in Pipe solutions: RCB Haul-off & WHC wheel capstan Read more
26.8.2019
Shanghai Wire Show 2019 will take place Sept. 3 - 5. Maillefer booth N1-B49. Read more
22.8.2019
Visit us on stand 16 A43 This year, we'll be back in the busy Hall 16 at K and exhibiting together with Davis-Standard. Throughout October's eight-day long event in Düsseldorf, Germany, you'll conveniently find us on stand 16 A43. The co-designed stand reflects the exciting changes we've undergone since the last K edition. Indeed, bringing value, technology and competence to our customers are our top goals. For the show's duration, our stand becomes home to innovations for a variety of extrusion applications. Read more
21.8.2019
Wire show in Bangkok 2019 is approaching Read more
14.8.2019
Personnel change. Young colleagues with a thirst for learning are brought on board, while experienced employees move on to face new challenges. Equipment, technology and methods change too. The pace quickens and diversity of expertise grows. Not surprisingly, the demand for training on our micro-drip irrigation systems is on the rise, particularly for tailored training sessions targeting private groups. Read more
31.7.2019
In order to best serve our existing and future customers in the telecom field, we have prepared a new generation EKP for launch during fall 2019. Read more
17.7.2019
The Stronger Together slogan is a reality for Maillefer, a member of the Davis-Standard group of companies. A case in point is the welcome arrival of elastomer manufacturing solutions into the Maillefer product portfolio. Read more
3.7.2019
Maillefer has added a Longitudinal Tape Applicator unit into its product portfolio recently. With this unit, customers have the means to apply a radial water blocking feature for various cable types. Water blocking barriers are usually aluminium, copper or plastic based water swellable tapes. The longitudinal tape is applied during the same process as final sheath. Read more
