DIE DEVELOPMENTS | MACHINERY
typically takes between three and five months. The largest head produced so far is a monolayer
head up to 1200 mm for coating steel-reinforced RTP pipes. The smallest so far is for applying a two-layer coating to a 16 mm pipe.
PVC pipeheads Conextru has also released a new generation of PVC pipeheads in its PV range. The standard product line consists of a total of seven pipeheads covering the range from 10- 800mm (PV 63 up to PV 800). Rheological features include: pressure class 16
for each head, with high compression and wall thickness; no spider lines and high pressure resistance; wide output range and large volume, for a smooth inner surface; and a special ‘torpedo tip’ to achieve fast purging and raise flow charac- teristics; a mandrel consisting of a basic mandrel and extension; and a changeable die and mandrel in horizontal position. And – depending on head size – in nitrided, stainless steel or chrome version; ceramic heaters as standard outside and inside, plus special cylindrical inner heaters with good heat distribu-
tion; and, head isolation as an option. In addition, the company offers three sizes of
head for double strand execution: PV 63–2; PV 110 – 2; and PV 160 – 2 HP – a modification of a stand- ard PV 160 that reach 1000 kg/h in double strand (so 2 tonnes/hour). These heads can be combined with calibrators and vacuum spray tanks. For the vacuum tanks, vacuum control is achieved via PLC by adjusting the vacuum via the speed of the pump. “Double extrusion is becoming popular again,” said Dobrowsky. “In the last two years, demand has increased.” Conextru has recently delivered several systems
to South America. This includes a double-strand line for PP – in a new design – that can make four-layer pipes in double-strand, as well as two-layer pipes with stripes.
CLICK ON THE LINKS FOR MORE INFORMATION: �
www.battenfeld-cincinnati.com �
www.kraussmaffei.com �
www.tecnomaticsrl.net �
www.conextru.eu �
www.guill.com
Don’t miss these issues of
New Spiderless Pipe Die
CLICK ON THE COVERS TO VIEW
Guill just launched its Spiderless Pipe Die, a new offering in extrusion. Capable of providing a finished extrusion with OD from 2”-15” and available in 4140 steel or stainless with heat treating, it’s ideal for tube and pipe producers for large diameter capabilities.
With its focus on precision tooling thanks to extensive experience in medical tubing, flow analysis and Guill’s ISO 9001 and AS9100 (Aerospace) quality systems, this new design offers increased material savings.
10 Pike Street COMPOSITE PIPE WINDOW PROFILES
West Warwick, RI 02893 Email:
sales@guill.com
For more information, visit
www.guill.com/series/900-series
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
