Band Heaters. Rectangular Band Heaters, Strip, Ring and Flat Heaters. Contact Accessories, Connection Boxes, Clamping Devices

Transcription

1 Band Heaters Mica Insulated Band Heaters (HM) Ceramic Insulated Band Heaters (KHM) Rectangular Band Heaters, Strip, Ring and Flat Heaters Protection Housings (WSM) Cast Heaters, Band, Flat or Custom Insulating Pads for Band Heaters Contact Accessories, Connection Boxes, Clamping Devices Band Heaters, PDF-BAN-009-E-1/12

2 Mica-Insulated Band Heaters (HM) Use For heating machines, shapes and tools of the plastic processing industry. Technical process-oriented applications. Dimensions Minimum diameter 50 x 20 mm (inner diameter x width), increasing in mms. (special models possible on request for smaller dimensions). Maximum dimensions practically unlimited, depending on the technical requirements. Temperature Maximum temperature of heating band surface 350 C. Tension (Volt) Any convenient voltage under the precondition that it should be technically feasible. Power (Watt) Any convenient wattage up to 3.2 W/cm² of heating area. (In special cases, higher power density is possible.) Connection For contact accessories, cable fittings, clamping devices, fixed cable and braided connections, DRGSL (heat-resistant, flexible insulation with metal braided cable housing of any convenient length, connection boxes and types according to the band heater dimensions, power and type of power supply line: see corresponding pages. Tightening Tight screw joints with the help of tightening straps and tightening bolts with inner hexagonal screws depending on the band heater dimensions. In M5, M6 or M8. If necessary, with spring plate expansion compensation according to Model Winded heating coil, mica insulation housed in galvanized surface-treated sheet metal. Can also be manufactured in oval or conical shape (special shapes possible) on request. Can be spread, with recesses, with perforations, in multiplepart, with insulation or heat-resistant jacket. For continuous heat flow over perforations or depressions in the objects to be heated, the band heater can be fitted with heat conduction plates made of copper, aluminum or brass. For heat transfer, the band heater must be pressed against the object to be heated. The model of the band heaters is not liquid-proof. Testing according to VDE Ordering information No. of pieces Diameter x width Tension (Volt) / Power (Watt) Type of connection (if necessary, specify connecting cable length) Heat-protection housing / heat conduction plate. Sketches or drawings are necessary for band heaters with perforations and definite accessory s. Band Heaters, PDF-BAN-009-E-2/12

3 Mica-Insulated Band Heaters (HM) - Typical Constructions HM, HM, type 1, with contact socket HM, type 2, with connection box HM, type 3, with connection box and sensor hole HM, type 4, special obliqually-cut HM, type 5, special with flat side and opening HM, type 6, twopart HM, type 7, twopart HM, type 8, special twopart HM, type 9, special Band Heaters, PDF-BAN-009-E-3/12

4 Ceramic-Insulated High-Performance Band Heaters (KHM) Use For heating machines, shapes and tools of the plastic processing industry. Technical process-oriented applications. Dimensions Minimum diameter 80 mm (inner diameter), increasing in millimeters (special models for smaller diameters possible on request ). Maximum dimensions practically unlimited, depending on the technical requirements. Dimensions, width mm 33 / 48 / 63 /78 / 92 / 107 / 122 / 137 / 152 / 167 / 180 / 195 / 210 / 225 / 240 / 255 / 269 / 284 / 299 / 314 / 329 / 344 / 357 / 372 / 387 / 402 / 417 / 432 / 446. Execution / model for 3 - phase connection possible from 92 mm width Construction characteristics. In the model, the connection boxes extend with tangential cable introduction over the total width of the band heater. A shortened connection box seated on a definite axial position is possible under observation of technical features. Construction of the connection boxes, clamping and shutter fittings, perforations and bores in radial as well as axial position is possible, depending on the requirement. Temperature Maximum temperature of heating band surface 650 C. Tension (Volt) Any convenient voltage under the precondition that it should be technically feasible. Power (Watt) Any convenient wattage up to 8 W/cm² of heating area. Connection Connection boxes with tension releaser, optionally with DRGSL (heat resistant, insulated, metal braided cable) of any convenient length, special lug in stainless steel. Fittings for thermal sensors Holding clamps according to TA data sheet, special models possible according to specifications. Tightening Tight screw joints with the help of tightening straps and tightening bolts with inner hexagonal screws depending on the band heater dimensions. In M 5 or M 6. If necessary, with plate spring expansion compensation according to Information Model Spiral-shaped heat conductor, drawn into ceramic casings, arranged one after another in heating strands, executed partially in box form, housed in jacket with insulation padding. It can also be manufactured with recesses and perforations, if necessary. Parts exposed to heat made of stainless steel, optionally with heat protection housing. Flexible band heater models through cut embossing teeth of housing. Direct heat conductor connection with the help of special screws insulated with ceramics. Current bridges in stainless steel, high performance heaters of large dimensions in multiple part. Can be manufactured in oval or conical shape upon request (special shapes possible). Assembly Please follow the assembly instructions. Ordering information No. of pieces / diameter x width / Volts / Watts / if necessary, specify connecting cable length), heat-protection housing / heat conduction plate. Sketches or drawings are necessary for high-performance band heaters with perforations and of definite accessories / fittings. Band Heaters, PDF-BAN-009-E-4/12

5 Ceramic Band Heaters (KHM) - Typical Constructions KHM, KHM, KHM, type 1, with open connection box KHM, type 5, with open connection box KHM, type 2, segment KHM, type 3, special with 3 heating zones KHM, type 6, with connection box and metal braided cable Band Heaters, PDF-BAN-009-E-5/12

6 Heat Protection Housing (WSM) Use For mika or ceramic high performance band heaters, to reduce heat radiation losses. Dimensions Minimum diameter 80 mm (inner diameter). Dimensions, width Intermediate widths from 38 mm to 501 mm in phased dimensions. Execution in 3-phase connection is possible from a width of 97 mm onwards. Construction characteristics In the model, the connection boxes extend with tangential cable introduction over the total width of the band heater. A shortened connection box located on a certain axial position is possible under observation of the technical features. The of the connection boxes, clamps and shutter fittings, perforations and bores in radial as well as axial position is possible, depending on the requirement. The section of the heat protection housing in the area of the connection boxes is insulated by the band heater on account of the electrical connections. For the purpose of access, the tightening clamps of the band heaters must be arranged on the side of the hinged or removable section of the heat protection housing. The radial division of the heat protection housing can be arbitrary. Model Manufactured from galvanized, surface-treated sheet metal, special models in stainless steel. Heat protection housing, 2-part, hinged with the help of joints, clamping with quick fastening shutters. Function as heating / cooling combination with air entry and outlet nozzles. Heat protection housing through cut embossing teeth in flexible execution. Heat protection housing of larger dimensions possible in multiple part. Ordering information The notation with heat protection casing must be specified along with the concerned band heater data. Heat Protection Housing with Insulation (WSMI) Use For band heaters, for further reduction of heat radiation losses and for limiting the heat protection housing surface temperature to about 65 C (measured at the band heater with 30 mm insulation jacket and about 10 mm air column for cylinder temperature of 245 C). Dimensions Minimum diameter 80 x 30 mm (inner diameter x width), maximum dimensions practically unlimited, depending on the technical requirements. Multiple-part possible for relatively large band heater diameter. Attachment The heat protection housing with insulation jacket is assembled along with the actual band heater as one unit. A subsequent fitting of band heaters with insulated heat protection housing is possible under certain conditions. The band heaters can be removed for the purpose of replacement. Instructions on Construction of connection boxes, clamps and shutter fittings, hinges, perforations and expansions is possible in radial as well as axial positions, depending on the requirement. The section of the insulated heat protection housing in the area of the connection box is insulated by the band heater on account of the electrical connections. For the purpose of access, the clamps of the band heaters must be arranged on the side of the hinged or removable section of the heat protection housing with insulation jacket. The radial division of the insulated heat protection housing can be arbitrary. Model Manufactured from galvanized, surface-treated sheet metal, special models in stainless steel. Flexible execution through cut-embossing teeth. This cut embossing teeth lies only in point-form at the circumference. Standard model in two-part with joint and fast clamping shutter. Special execution as heating / cooling combination with air entry and outlet nozzles. Insulation jacket: 10, 20 or 30 mm thick. Ordering information Heat protection casing with... mm thick insulation must be specified along with the concerned band heater data. Band Heaters, PDF-BAN-009-E-6/12

7 Heat Protection Housings - Typical Constructions WSM-HM, WSM-HM, type 1, with thermoprotection type TA-1, contact box type KO-11B and fast clamps WSM-HM, type 2, special obliqually-cut with connection box type KO-11 and openings WSM-HM, type 3, with thermoprotection type TA-1, contact box type KO-11B and clamps WSM-KHM, WSM-KHM, type 2, with thermoprotection type TA-1 and clamps WSM-KHM, type 4, heating/cooling combination WSM-KHM, type 5, heating/cooling combination WSM-KHM, type 6, heating/cooling combination WSMI, protection housing with insulation jacket Band Heaters, PDF-BAN-009-E-7/12

8 Contact Accessories (KO) Type KO-STE (Spec. Sheet C16): 10A, 250V, for Band Heaters larger than dia. 75 mm Type (Spec. Sheet C15): 10A, 250V, Plug for Heat 250 C Type KO-11 (Spec. Sheet C22): 16A, 250V, for Band Heaters larger than dia. 100 mm (Spec. Sheet C21): 16A, 250V, Silicon Plug for Heat Type KO-11A (Spec. Sheet C22): 16A, 250V, for Band Heaters dia mm Type KO-11B (Spec. Sheet C22): 16A, 250V, for Band Heaters larger than dia. 75 mm Band Heaters, PDF-BAN-009-E-8/12

9 Connection Boxes (KA) Type KA-12: 16A, for Band Heaters dia. 100 mm or over Type KA-13: 16A, 2-poles, for Band Heaters dia. 75 mm or over Type KA-13/4: 4x10A, 4-75 mm or over Type KA-16: 40A, 2-poles, for Band Heaters dia. 100 mm or over Type KA-16/3: 3x30A, mm or over Type KA-16/6: 6x15A, mm or over Type KA-18: 30A, 2-poles, for Band Heaters dia. 150 mm or over Type KA-18/6: 6x15A, 6- Type KA-19: 40A, 2-poles, for Band Heaters dia. 150 mm or over Type KA-19/3: 3x30A, 3- Type KA-19/4: 4x25A, 4- Type KA-19/6: 6x25A, 6- Type KA-20/3: 3x40A, 3- Type KA-20/4: 4x30A, 4- Type KA-20/6: 6x35A, 6- Type KA-21: fixed cable connection, only for flat heaters or surfaces Type KA-22: fixed cable connection, only for flat heaters or surfaces Band Heaters, PDF-BAN-009-E-9/12

10 Closing Devices (SA) Type SA-411 Types Abb.1 and Abb.2 Type SA-530, for Band Heaters dia. 150 mm or over Type SA-1042, for Band Heaters dia. 250 mm or over Sensor Clamping Devices (TA) Type TA-1: with dia. 3/8" Type TA-2: with dia. 1/4" Type TA-3: for M14x1,5 Type TA-6: for M12x1 Type TA-7: for M10x1 Type TA-4 Type TA-5 Band Heaters, PDF-BAN-009-E-10/12

11 Cast Heaters, in Aluminium or Bronze Cast Aluminium and Cast Bronze heaters offer optimum heat transfer directly to the contact surface. These heaters are usually custom designed in house using state of the art cad ware alongside many years experience to obtain maximum heater life. Every shape and size can be manufactured in our modern patternshop and foundry, before being fully machined in our machine shop prior to termination at final assembly. There are many terminations available from metric to American threads, high temperature leads to high temperature plug and socket arrangements. They can be designed as heater only, water/oil cooled or air cooled. Insulated or un-insulated cowls are available in sheet steel or Cast Aluminium. Recommended Watt Density Limits Applications Required details for a quotation Cast Aluminium 4.7 W/cm² Extruder Barrels Inside diameter Cast Bronze 7 W/cm² Extrusion Die Heads Outside Diameter Temperature: Blow Moulding machines Width of heater Cast Aluminium 400 C Packaging Termination positions Cast Bronze 650 C Food warming Termination type Glue pots Air/Water cooled Rubber presses Wattage and Voltage Window machines Transfer machines Liquid cooled applications These units are designed and manufactured using the highest quality heavy walled alloy tubing for maximum thermal shock resistance. They are available with straight tube connection or threaded connectors. These units offer many advantages including: Maximum thermal conductivity Uniform heating of contact surface Fast, effective cooling control Excellent mechanical strength Extremely reliable unit Simple to fit Available with cowls for maximum energy Air cooled applications Our experience has evolved from the very first finned heaters supplied to the extruder industry into complete insulated units which can also be supplied with top quality blowers ready to install straight onto the extruder barrel. The design offers the maximum surface area for optimum cooling efficiency and minimum energy loss. Our design team have the capability to manufacture complete lines for renewal of existing air cooled lines or for the conversion of older water cooled extruders. Our facility allows us to manufacture a wide range of sizes to suit the smallest extruder up to the largest. Cowls can be insulated or un-insulated in Aluminium coated mild steel or Stainless Steel, they can also be supplied in Cast Aluminium or Cast Bronze for areas where a more robust unit is required. Installation Recommendations Surface to be heated must be clean from contamination, smooth and compatible to the machined surface of the heater. Water fittings must be free from leaks, threaded connectors are the most common way of ensuring this. Heater must be seated correctly and securely clamped to the extruder barrel. After initial warm up to operating temperature, the heaters should be isolated from the electricity supply and re-tightened to compensate for thermal expansion. All connections should be made with suitable high temperature wiring. Terminal enclosures can be provided up to IP65 for ease of wiring and operator safety. All units must be adequately earthed. Maintenance Heaters must be disconnected from supply before any maintenance is carried out. Electrical connections should be periodically checked to prevent arcing which could damage the heater terminals Heater clamping arrangements should be checked regularly and re-tightened when required. Band Heaters, PDF-BAN-009-E-11/12

12 As a dynamic and innovative Group, we pursue a policy of continuous product development and improvement. Our companies, therefore, reserve the right to amend the specifications without giving prior notice. Descriptions and data in this brochure are correct at the time of the issue but are subject to alteration. Details of any change are available on request. JEKA GmbH ROTFIL srl Kalterer Straße 27 Via Praglia 15 D Heppenheim I Pianezza TO Deutschland / Germany Italy T. +49-(0) T F. +49-(0) F info@jeka-heppenheim.de info@rotfil.com Band Heaters, PDF-BAN-009-E-12/12