Hot Sprue Bushings Contents - DME

1 Rev. 05/972 Hot Sprue BushingsD-M-E Hot Sprue BushingsContentsPageHot Sprue Bushings ..3 Straight Shot ..04 - 07 Gate Mate ..08 - 12 High Performance Nozzles .. 13 - 15 Thermag .. 16 - 17 Multiple Gate 18 - 19 utonozzles .. 20 - 22 Osco Single Valve Gate Nozzles .. 23 - 25 Micro Single Bushings .. 26 - 28 Process Data Sheet .. 29 - 32 Case Studies .. 33 0 to eliminate conventional cold sprues to permit larger shots and fill faster to improve the performance of all plasticmaterials by allowing direct gating in opti-mum conditionsPositive temperature control with J-type thermocouplesand D-M-E Smart Series (G-type) cycle times due to more positive start-ups provided by positive temperature controlof the gate performance and reliability based on years installation and part gating eliminates the need to trim sprues andleaves no witness marks on the molded part quality due to a shorter injection gate vestige resulting in better part range of sizes to cope with both large and choice of design to enable proper gate square coil heaters or high power,sturdy cast-in heaters, both give an outstanding thermalprofile and long best EUROPE Industriepark Noord I B-2800 Mechelen Tel.

2 +int. / 21 50 11 Fax +int. / 21 82 35 Molding SystemsHot Sprue Bushings Straight Shot Gate Mate High Performance nozzle Thermag Multiple Gate Nozzle Autonozzle Osco SingleValve Gate nozzle Micro Single Bushing Process Data SheetsRev. 05/97 Hot Sprue Bushings3D-M-E Hot Sprue BushingsDepending on the application, a suitable bushing can be selected from one of the following D-M-E Hot Sprue Bushings :DiversityStraight ShotFeaturing an unrestrictedstraight melt channel made ofwear resistant, hardenedsteel, the Straight Shot isoften used for commoditymaterials. The Pico and theExtended Pico Straight Shotare provided with a highperformance cast-in heaterand are used successfullywith engineering materialsrequiring a tight temperaturecontrol, like PC, POM, PA,PETP, is of the Sprue MateThe vast Gate Mate familyfeatures a melt channel withhigh heat conductivity,allowing larger shots withminimal gate vestige due to itspoint gate tip.

3 A wide varietyof melt channels and tips isavailable in variousgeometries. The tips aremade from either nickel platedberyllium copper or a uniquehigh wear resistant materialcombining extreme hardnesswith high thermal configurations other thanthe point tip are also available, the thru hole tip whicheliminates potential flow Thermag is an all steelbushing designed for directpart gating, especiallyqualified for bulk materials,like PP, PS, performance NozzlesThe CIA High PerformanceNozzles with cast-in heaters,developed exclusively forD-M-E, can be used for allapplications, especiallyengineering grade resins witha high degree of combination with a bandheater they are also suitablefor direct part gating in singlecavity molds.

4 The HighPerformance Nozzles aredelivered with a seal ring. Theradius has to be made by gate nozzlesThe Multiple gate nozzle is suitablefor multiple gating of small parts inmultiple cavity molds or larger partsin single cavity molds. Providing upto 6 points of sprueless injection,located on a small circle, this selfcontained round manifold with Hot-One type probe gating offersoptimum gate cosmetics. Two gateconfigurations: point gate and thruhole whereas the point gate type isalso available in a wear resistantversion for abrasive gate is fed through a microHot-One nozzle with its uniquethermal heat. To obtain a betterinsulation titanium support andspacer rings are direct gating of large and/or deep plastic parts.

5 Anylength available between 200and 800 mm. Two standardtips are available: point gateand thru hole type. Suitablefor all unfilled plasticmaterials. Maximum shotcapacity cm3/sec(depending on material, partgeometry and flow condition).Micro single bushingsD-M-E's Micro single bushingprovides a solution for direct gatingwhere space is limited. Near thegate, if fits in a boring of 17 mmdiameter only. It features anexcellent melt temperature controlwith two independent zonespossible. The design of the cast-inheater at the gate end is unique,reduces heat losses tremendouslyand guarantees temperatureuniformity. Two gates are possible:point gate and thru hole type. Thepoint gate is supplied in a standardand a wear resistant version.

6 Mostkind of engineering plastics havebeen successfully injected with theD-M-E Micro single single valve gate nozzlesD-M-E Osco's single valve gatenozzles, full body type andbodyless type, are designed toprovide more flexibility and betterresults in any molding an externally mountedcylinder it is the most trouble freeand easy to install systemavailable. The single valve gateoffers a unique external pinadjustment to simplify machiningand mold assembly a replaceable pin sealeliminates leaks and the originalpin guide eliminates gate system's shaft-driven 1:1 ratioprovides longer components lifeand safer operationRev. 05/97 Straight Shots - SSBUCast-in heaters forthe ultimate heat profileThe entire heater of the Pico and Extended PicoStraight Shot is encapsulated in copper and iscovered with a stainless steel sheath for insulationand protection.

7 Copper is used to give a betterheat wattage allows heat to be preciselyplaced for even temperature control. The heatercasing gives exact heat and provides the ultimateheat internally grounded thermocouple location waschosen for optimum heat monitoring and Hot Sprue BushingsBenefitsThe Straight Shot was designed to remove thesuperfluous direct gate on single melt is guided through a straight centralchannel and without deflection directly to channel is made of hardened steel and iswear resistant. An optimal heat separation isprovided by the minimum contact surface betweenthe bushing and the with integrated thermocouple guarantee auniform temperature along the flow channel. Thusa thermal overstressing of the plastics melt advantages of the Straight Shots are thesmall dimensions, easy modification of the gateopening and a variety of four types: Standard,Mini, Pico, and Extended Pico Straight Standard and Mini types use optimized squarecoil heaters, the Pico and Extended Pico StraightShot are provided with a copper cast-in best to eliminate conventional cold sprues to improve part quality to reduce cycle time to reduce shear, stressand pressure loss to improve performance to increase productivity to save energy for large shots for difficult materials for materials savings for shot capacities up to 1000 gr.

8 For a low cost per gate for a uniform temperature profileThermocoupleEngineeredDistributed WattageCopper cast-inConstructionStainlessSteelCasingR ev. 05/976 max3 23 12 401890 84 6R0 23 12 40 6R0/1590 4 Straight Shots - SSBU5 GatingThe D-M-E Straight Shot is designed for direct partgating or feeding runner profiles. It is supplied with a gate case the gate opening is insufficient, the diameter canbe enlarged. Thereby the front side of the bushing isreduced, fig. 1, detail X. Body and Sprue bushing shouldbe reduced by the same cost per gate is at its lowest because some gatevestige is admitted and also a circular mark is Straight Shot can be exchanged for already installed,conventional Sprue Bushings on almost any color is no Pico Straight ShotGate opening modificationD-M-E Hot Sprue BushingsStandard Straight ShotPico Straight openingLength to cut off mm mm mm mm mm mm mm to cut 6 12fig.

9 1 Detail X 0/15617 504131 25 - A90 68 0 504 25 6 TypesREFARSSBU-7640-2-N260 SSBU-7640-R-2-N2615 REFARSSBU-8026-2-N260 SSBU-8026-R-2-N2615 Countersunk gatingConcave gatingRunner gatingMini Straight ShotRev. 05/97X1211 28 50 90 54 max43A5 25H9H7H7 0,57 x 45 XR312 37 263533A max3 12 90 44H9 Shots - SSBU6D-M-E Hot Sprue BushingsInstallation InstructionsStandard - MiniSpare PartsExtendedPicoPicoMiniStandardREFREFR EFREFBodyStandard & MiniASSB-36-N36 SSB-56-N56 SSB-76-N76 SSB-96-N96 SSB-7640-NSSB-8026-NSSB-7640-NSquare coil heaterTC type JCast-in heaterTC type JWRPK-42/90240 V/280 WWRPS-32/90230 V/400 WWRPS-42/90230 V/300 WWRPK-32/90240 V/280 WSprue bushingRSSS-75-N0 SSS-85-N15 RSSS-8026-N0 SSS-8026 -R-N15 RSSS-7640-N0 SSS-7640 -R-N15 RSSS-1340-N0 SSS-1340 -R-N15M6 x 10M6 x 10M4 x 8M4 x 8 ScrewSpecial usesFor any non-reinforced bulk plastics like PE, PP, PS,ABS, SAN etc.

10 , use the Standard or Mini non-reinforced and reinforced technicalthermoplastics with a tight processing zone, like PA,POM, PC, PETP etc., select the Pico or ExtendedPico Straight - Extended PicoStandardMiniAXAX361132657,5561137611 396113 PicoExtended PicoAXAX2657,581,5113 Pico &Extended Pico50-52 HRCARev. 05/97 LREFRASSBT-4507ER-222,2 SSBT-4513ER-234,9 SSBT-4517ER-247,6 SSBT-4523ER-212,760,3 SSBT-4527ER-273,0 SSBT-4533ER-285,7 SSBT-4537ER-298,4 SSBT-6507ER-222,2 SSBT-6513ER-234,9 SSBT-6517ER-247,6 SSBT-6523ER-219,0560,3 SSBT-6527ER-273,0 SSBT-6533ER-285,7 SSBT-6537ER-298,4 REFRASSBT-4507E-222,2 SSBT-4513E-234,9 SSBT-4517E-247,6 SSBT-4523E-212,760,3 SSBT-4527E-273,0 SSBT-4533E-285,7 SSBT-4537E-298,4 SSBT-6507E-222,2 SSBT-6513E-234,9 SSBT-6517E-247,6 SSBT-6523E-219,0560,3 SSBT-6527E-273,0 SSBT-6533E-285,7 SSBT-6537E-298,4 Straight Shots - SSBT7D-M-E Hot Sprue BushingsInstallation InstructionsGatingS-SeriesE-SeriesE-Seri esE-SeriesER-SeriesER-SeriesER-SeriesE & ER-Series mustalways be altered.