machinery | Extruder technology
Polyhose. “The first two lines are for single layer automotive high pressure hose, where one produces the inner tube and the other lays the coating. The third line is for high performance five-layer automotive tube.” The agreement guarantees twice-yearly technical inspection visits, and priority access to the company’s service support desk. It specifies the frequency of interventions and the resources involved from Maillefer locations in both Switzerland and India. “The goal is to keep the lines at their original performance levels,” he said.
New to market KraussMaffei Berstorff has provided a pipe extrusion system to Moscow-based SLT Aqua – a newcomer in plastics pipe production. The company focuses on the production of drinking
water and hot water pipes, and when selecting machinery providers it was looking for a high quality end product. “In laboratory tests, we paid particular attention to
material destruction,” said Georgiy Gusev, managing director of SLT Aqua. SLT Aqua produces single-layer PP-R drinking water pipes in the diameter range 20 -110mm on one production line with the KME 60-36 B/R single-screw extruder and KM-RKW 32-110 pipehead. On the second line, three-layer PP-R pipes – the
Below: Schüco is using twin-strand technology to boost window profile production
middle layer being filled with glass fibre – are manufac- tured for use in heating pipe systems. Here, alongside the two KME 45-36 B/R single-screw extruders, a KM-3L RKW 73-160 multi-layer pipe head is used. Mikhail Basilevsky, deputy technical director, added: “The sample pipes produced showed the lowest level of material destruction, thus proving top pipe quality.” Separately, Schüco Polymer Technologies has
commissioned a twin-strand co-extrusion system from
KraussMaffei Berstorff for window profile production. In the project, a KMD 114-32/P twin-screw extruder – which has been running for more than 10 years at Schüco’s Weißenfels plant – has been integrated into a new coex combination, which is also equipped with two KMD 63 K/P conical machines. The system produces co-extruded window profiles with an output of 700-800kg/h. “With our concept of twin-strand coextrusion, we
have met a special requirement from Schüco,” said Marc Stramm, sales representative for Germany at KraussMaffei Berstorff. The main extruder prepares the material with a
higher proportion of recycled or filler content for the inner layer. The two co-extruders (executed as a piggyback model) deliver the outer layer in the twin strand at up to 200kg/h per strand.
Single screw addition The SV250 single screw extruder from Milacron was developed for pipe and profile extrusion – though can also be used for sheet, fibre, wire and cable, says the company. It is a stock machine, so is available for quick
delivery, and comes in sizes of 2-4.5in (50-115mm) with a 24:1 L/D ratio. An SV250 on display at K2016 featured a die head mounted to it from the newly acquired Milacron product brand, Genca. The machine also incorporates a new Matrix extrusion controller, which includes a touchscreen as standard. SV machines are made in China, but sold worldwide, says Brian Marston, president of Milacron’s extrusion division.
“It is made in China to US standards,” he said.
“We’re currently working on a CE mark for Europe.” Milacron intends to add a second model – the 150 – and then further models, including a 175, in early 2017. Milacron is also expanding its range of counter-
rotating, twin screw machines, which are made in India. The company currently offers four mid-range models – two in conical, and two in parallel – and next year will launch two more in each format. “The new machines will be larger, but we’ve yet to decide the exact details,” said Marston. These machines, which are for the Indian market, are like to be used for PVC, CPVC and PE pipe.
Click on the links for more information: ❙
www.battenfeld-cincinnati.com ❙
www.tecnomaticsrl.net ❙
www.davis-standard.com ❙
www.maillefer.net ❙
www.kraussmaffeiberstorff.com ❙
www.milacron.com
34 PIPE & PROFILE EXTRUSION | July/August 2017
www.pipeandprofile.com
Page 1 |
Page 2 |
Page 3 |
Page 4 |
Page 5 |
Page 6 |
Page 7 |
Page 8 |
Page 9 |
Page 10 |
Page 11 |
Page 12 |
Page 13 |
Page 14 |
Page 15 |
Page 16 |
Page 17 |
Page 18 |
Page 19 |
Page 20 |
Page 21 |
Page 22 |
Page 23 |
Page 24 |
Page 25 |
Page 26 |
Page 27 |
Page 28 |
Page 29 |
Page 30 |
Page 31 |
Page 32 |
Page 33 |
Page 34 |
Page 35 |
Page 36 |
Page 37 |
Page 38 |
Page 39 |
Page 40 |
Page 41 |
Page 42 |
Page 43 |
Page 44 |
Page 45 |
Page 46 |
Page 47 |
Page 48 |
Page 49 |
Page 50 |
Page 51 |
Page 52 |
Page 53 |
Page 54 |
Page 55 |
Page 56 |
Page 57 |
Page 58