Heatlock ESB2, Electric Sprue Bushing

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This Heatlock series, below, is currently being replaced by the A1-series of nozzles. Before you design check availability, stock is gradually decreased. Spare parts will be available until at least end of 2007 (apart form NPT1 bodies) Heatlock ESB4 & ESB4...Vario, sprue bushing ESB4 Features • Lowest possible thermal stress on plastics. • Flow channel can be made to your own requirements. Tailor-made installation dim."L". • Ceramic insulation between bushing and mould. • Production of large parts using optimum technical items. The economical advantages of doing away with heavy sprues. Egenskaper • Den stora innerdiametern ger minsta möjliga termiska påkänning på plasten. • Vario kan anpassas helt efter dina behov när det gäller längd, flytkanalens diameter eller intagsprofil. • Utomordentligt jämn värmefördelning längs bussningen. • Tekniskt optimal produktion av stora detaljer och ekonomiska fördelar som eliminering av grova stångingöt medför. 28 L=45-400 +20 Ø62 Shot weights
This Heatlock series, below, is currently being replaced by the A1-series of nozzles. Before you design check availability, stock is gradually decreased. Spare parts will be available until at least end of 2007 (apart form NPT1 bodies) ESB4 +20 "L" 28 8 1.5 Ø36 10 Ø62f8 Ø60 Ø14/(B) Ø3-3°(C) ”L” mm Single-cav. Part No. Multi-cav.* Total volume of feed channel in mm 3 75+20 ESB4075201 ESB4075202 14279 100+20 ESB4100201 ESB4100202 18126 125+20 ESB4125201 ESB4125202 21972 150+20 ESB4150201 ESB4150202 25819 175+20 ESB4175201 ESB4175202 29665 200+20 ESB4200201 ESB4200202 33512 * with O-ring 615. Later version with O-ring 640. Can be controlled with various types of temperature controllers intended for hot runner systems with 220/240 V using thermocouple of type Fe-CuNi. Recommended for the following maximum shot weights: Ø25h6 Low-viscosity plastic (PS,PE,PP) Med.-viscosity plastic (ABS,SAN, PA,POM) 4500g 2800g High-viscosity plastic (PC,PMMA, Noryl, Filled material) 1700g Gate diameter is 3 mm on delivery, can be reamed up to 12 mm if needed. 15.5 Length expansion at: °C=”L”+X,xx °C 50 75 100 125 150 175 200 200 0,12 0,17 0,23 0,29 0,34 0,40 0,46 250 0,14 0,22 0,29 0,36 0,43 0,50 0,58 300 0,17 0,26 0,34 0,43 0,52 0,60 0,69 350 0,20 0,30 0,40 0,50 0,60 0,70 0,80 Ø27 To ensure minimum vestige on the part, measure the actual "L" measurement on each bush, add the length expansion according to the table to get the hole depth ("L"+X,xx) to be drilled in the cavity plate. 9 8 Ø14 R04 max +0.01 -0 Före inbyggnad, mät upp bussningens nominella "L"-mått, lägg därefter till längdutvidgningen så att bussningens spets ligger exakt vid intagspunkten i uppvärmt tillstånd. 20 Ø62H7 20 2.5 Ø40 "L" +0.01 8 65° 2 R3 max 1,5 ØA H7 Ø0.01 5 2 5 "L" 0.25-0.5 R=1 ØD Gate on runner or on surface not perpendicular to bushing. Ø(D+4) Increased temperature in the front end of the bush due to reduced heat loss. ØAH7 more 2.04.2 Date: 030930, © LKM Heatlock Co Ltd
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Heatlock ESB2, Electric Sprue Bushing

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