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.
13.11.2019
Maillefer has a complete program of extrusion heads which fulfils the needs for pipe & tube manufacturing. Typically proposed in our line offerings, as well as for performance upgrades and component replacements. The TL and ELH longitudinal heads, and the VLCH and ECH crossheads form the four families that cover pipe & tube applications. They respond to a variety of design requirements like single layer or multi-layer, stripe or skin options, co-extrusion or tandem processes, countless adhesives, polymers and elastomers, and special connections and tooling configurations. Read more
7.11.2019
The 100th multi-layer PAL line is going to Chinaust and in particular to their facilities in Changchun in northeast China. Factory Acceptance Tests took place during the last days of June 2019 in the presence of a four person delegation led by Li Hongjie, General Manager of Changchun Chinaust. Not only was it the occasion to mark a successful acceptance by the customer, but also to highlight the delivery of the 100th multi-layer automotive tube extrusion line. Indeed, representatives from both companies began plans for celebrating Chinese style once the line ready for production. Read more
29.10.2019
Maillefer really enjoyed hosting the stand at K 2019 together with team members from Davis-Standard. The visitors and exchanges were just fantastic! Read more
24.10.2019
Maillefer has a complete program of crossheads which fulfils the variety of needs in wire & cable manufacturing. Often included in our line configurations, they are also in demand for performance upgrades and component replacements. The THX and ECH models form the two large families of extrusion heads that respond to a variety of applications. Read more
17.10.2019
Maillefer House of Experts welcoming you all to meet us at K2019 Düsseldorf Read more
9.10.2019
Maillefer has recently acquired a Cable Checker unit for our new R&D lab. The unit is essentially a microscope connected to a hot oil bath for high resolution analysis of all parts of the cable. This equipment is particularly suited for inspection of extruded XLPE (cross-linkable polyethylene) insulated Medium, High and/or Extra-High Voltage cable samples. Both trouble shooting and quality control inspection are done with very high accuracy. Read more
25.9.2019
What entrepreneur can afford to ignore input for fresh ideas and innovation? Universities, technical institutes, young start-ups, professional associations, industrial partners as well as suppliers and customers all participate in making ideas germinate. Reserving efforts to reach out when caught up in daily operations takes willpower and vision. The results will help define where we want to be for our customers. Read more
12.9.2019
New in Pipe solutions: RCB Haul-off & WHC wheel capstan Read more
