Ceramic insulated band heaters

Transcription

1 ... Infinite soutions... Ceramic insuated band heaters MODEL Z.41 (CERAMIC)

2 Ceramic insuated band heaters Mode Z.41 ceramic Technica features Use Pasticization cyinders for injection moding machines or extruders Mica band heaters are the idea soution for heating cyindrica surfaces in many other appications Advantages of the ceramic band heaters Exceent heat exchange to the cyinder Heating uniformity Long ife of the heater (when propery used) Easy to insta High mechanica resistance Constant quaity with time It is very important underining that for this heater, heat exchange takes pace both for conduction and radiation. Energy saving is an important characteristic because the ceramic fibre ayer, paced between the ceramic and the externa casing, reduces of about 20% energy consumption, if compared to a norma mica band heater. B A Diameters Starting from 70mm, for heaters whose diameter is over 500mm is recommendabe to manufacture them in two or more different sector with separate feedings Widths In this case, widths are determined by the distance between the hoes inside the ceramic bocks and, therefore, we have worked out the tabe at pag. 3 with the standard widths in mm. (A) Externa stainess stee sheet (B) Resistive winding (C) High purity ceramic insuation (D) Ceramic fibre insuation C D Technica features Specific wattage up to 8 W/cm 2 Working temperature up to 420 C Externa stainess stee sheet, resistant to high temperatures (A) Nicke-Chrome 80/20 resistive winding (B) High purity ceramic insuation (C) Ceramic fibre insuation (D) Heater s standard thickness 12 +/- 1mm Fibregass insuated feeding cabe with pure Ni or CuNi conductor externay protected by a meta braiding (buit in earth wire) working temperature 320 C, with peak 350 C. Options: Pure Ni or CuNi conductors with siicon seeve -max working (Temperature 180 C, peak 200 ) 2

3 Ceramic insuated band heaters Over 300 mm diameter camping screw with spring TCE M6 L100 CLAMP TYPE Ø V Ø G Ø T M L TCE M6 L100 M ØV Technica features Feasibe eectric connections A monophase votages From 53mm width up to 121mm, it is possibe to appy a star (Y) three phase feeding Over 121mm width it is possibe to appy a star (Y) or deta ( ) three phase feeding ØG M Testing A sophisticated testing equipment (TPC 2000) aows us to guarantee the entire product, because a heaters are hot tested, appying their actua working votage TPC 2000 is compete with a printer certifying testing resuts Testing certificate for each singe heater, upon request ØT Standard measurements Ohmic Vaue Dieectric strength Current oss Insuation resistance Earth wire efficiency For further information pease contact our technica dep. We reserve the right to change technica detais. Standard width Width (mm)

4 Ceramic insuated band heaters How to order Mode Z.41 Appication:... + Diameter D (mm):... + Width L (mm):... + Feeding votage (V):... + Wattage (W):... Exit Box: + Type: (see brochure connections ink):... + Position from the edge (P):... + Position as per pic. 1 (degrees):... + Cabe direction: axia (AX 1-2) - tangentia (TX 1-2) - radia:... + Cabe ength (mm):... Thermocoupe Hoes and sot: + N hoes and sot:... + Position as per pic. 1 (degrees):... + Hoes/sot Axis from the edge (U):... + Hoes diameter (mm):... + Any threaded connector (see pag 6):... + Sot diameter (mm):... + Any insuation covering:... 0 Picture 1 4

5 Ceramic insuated band heaters Hoes or sots From width 30mm is possibe to suppy heaters with externa thermocoupe hoes or sots. It s aso possibe to provide a threaded connector as showed in the picture Standard threaded connector M8 x 1,25 (8MA) M10 x 1,5 (10MA) M10 x 1 (10MB) M12 x 1,75 (12MA) M12 x 1,5 (12MB) M12 x 1 (12MC) 1/8 GAS 1/4 GAS 3/8 GAS Specia execution Modeo Z.42 execution with singe insuation covering Modeo Z.43 execution with doube insuation covering, inside insuated and outside with perforated sheet 5

6 Ceramic insuated band heaters Specia execution Heater bands mode Z.41 with externa perforated sheet for heat dispersion by forced ventiation Heater bands mode Z.41 with ceramic insuation with externa perforated sheet. Finned dissipators (made of A 20/10) and covering with couping fange for bowers Connections Pease check a our connection option at the foowing ink 6

7 Ceramic insuated band heaters Instaation and storage instruction Instaation Storage Operation The particuar fexibe structure of this heater faciitates remarkaby its appication on the cyinder. As a matter of fact, it is possibe to enarge the band far beyond its interna diameter, in order to tighten it on the cyinder with the suitabe hexagona cyindrica head screws. When instaing the ceramic band heater, pease make sure to hod it tighty screwing up the apposite bots (with exagona head). When reached the working temperature or after 30 min. heating screw it up sti further. Do the same after few hours in order to compensate the therma inear expansion of the heater. Not doing the operation described above may cause the over heating of the parts of the heater that are not perfecty in contact with the nozze pointed out by a coour change purpe - back and consequenty the resistive fiament may burn. It is very important to foow these advices in order to have a onger ifetime of the heater Store at room temperature in a Security procedures for the dry pace. handing of eectrica items and appications must be foowed Do not touch ceramic heater bands whie in use because the can get very hot Pease make sure that the heating eements can not touch fammabe materia whie in use Genera information If our ceramic bands heater are deivered with feeding cabes without insuation (naked connection) or with removabe insuation (covered with gs-seeving) the customer himsef has to take care about the protection against eectricity. Temperature controers Connections Protect connections against the ingress of iquids and gases to avoid short circuits Insta the connections away from sharp edges or parts since this may aso cause short circuits Protect connection eads against the effects of temperature and ay them in a proper way Pay attention to the connection votage Temperature controers have to match the power consumption and the used temperature sensor. Ony insta temperature controers with automatic soft start function so that any moisture which may have entered the heating eement wi escape sowy 7

8 10040 San Giio - Torino (Itay) - Via Druento, 48/2 Te inee R.A. - Fax e-mai: info@zre.it Marcatura secondo direttiva 2006/95/CE de 11/12/2006 Copyright Z.R.E Rev Tutti i diritti riservati