Machine nozzle with needle shut-off type HP pneumatically or hydraulically controlle
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Machine nozzle with needle shut-off type HP pneumatically or hydraulically controlle - 2

Machine shut-off nozzle, type HP Technical description The pneumatically or hydraulically actuated machine needle shut-off nozzles type HP are used in processing of thermoplastics, principally with low viscosity materials such as: PA, PPS, PE, POM,PP. In this nozzle’ favour are: s Cycle time reduction, shut-off at the nozzle orifice, withdrawal while dosing Finds application in: Packaging, automobile and leisure industries, medicinal and electronic equipment. Operation: The assembly integrated actuator (pneumatically or hydraulically activated) controls a nozzle-axis positioned needle via a...

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Machine nozzle with needle shut-off type HP pneumatically or hydraulically controlle - 3

Machine shut-off nozzle, type HP What speaks for Herzog • • • • • • Nozzle activity is the core business Many years market presence Design and assemblies matching today‘ requirements s Development of special applications Fast delivery Service performance Integrated Actuator Specially manufactured two-way piston cylinders with temperature resistant seals (up to 180°C) are applied for the pneumatic and hydraulic actuators. The actuator together with the nozzle assembly froms a compact unit. The cylinders are operated from input data on the machine control unit. Advantages on an integrated...

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Machine nozzle with needle shut-off type HP pneumatically or hydraulically controlle - 4

Machine shut-off nozzle, type HP Risk of collision by diving into the mold The stars in the graphic represent exposed areas of the nozzle. The required area should be checked in the machine plate. K (mm) HP 0 HP 1 HP 2 P 70 77 96 Q 51 64 92 S 84 95 124 T 87 117 173 S K P Tip length variable to immersion depth (see Tip types) Q T In certain circumstances a longer tip can ensure the collision avoidance. In this case the tip dimension K would be adjusted. For standard sizes see Tip types. Tip types K One-piece tip: two lengths HP 0 HP 1 HP 2 K length in mm 24 * 40 32 * 50 50 * 80 Heater band...

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Machine nozzle with needle shut-off type HP pneumatically or hydraulically controlle - 5

Machine shut-off nozzle, type HP Optional Extras Filter → preventive strategy Keeping free feed openings in the hot runner requires the use of a filter. We offer the screen or sieve filter. (More information under Optional Extras, Melt filter) Mixer → improved quality on injection molded parts A homogenized melt (in colour and temperature) reduces the reject rate and produces a considerable improvement in the quality of the injection-molded parts. The installation of the mixer takes place before the nozzle. We favour the X-Mixer technology. (More information under Open machine nozzles,...

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Machine nozzle with needle shut-off type HP pneumatically or hydraulically controlle - 6

Machine shut-off nozzle, type HP Alternative tip heating systems→ Note: requires adjustable heating • Space saving external heating system A standard heater band requires space in the nozzle immersion area (machine plate mold). Possibility for restricted spaces: Heater band with flat cap connection and wedge clamping or cylindrical heat cartridges. (More information under Optional Extras, Heating systems) • Integrated tip heating system Tip mounted haterbands have exposed areas. When injecting out the problem of over injecting can arise. This requires time consuming cleaning which can...

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Machine nozzle with needle shut-off type HP pneumatically or hydraulically controlle - 7

Machine shut-off nozzle, type HP Data sheet - machine needle shut-off nozzle, type HP pneumatically / hydraulically controlled Operating data HP0 HP1 HP2 500 1600 3500 bis 50 50 – 120 ab 120 20 50 130 70 120 180 Ø3 Ø5 Ø8 1000 bar 1000 bar 1000 bar 3 max. injection rate cm / s based on Polystyrol (PS) approx. screw diameter (mm) flow channel cm 3 max. contact force (kN) smallest nozzle orifice (mm) M at max. injection rate max. back pressure (closed nozzle) • For higher back pressure (melt precompression) or closing against solid melt pressure (physical foaming) please contact us for more...

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Machine nozzle with needle shut-off type HP pneumatically or hydraulically controlle - 8

Machine shut-off nozzle, type HP Dimension Sheet for enquiry or order Shut-off nozzle type HP, pneu. / hydr. operated Company: Contact person: Street: Tel.: City / Zip: Fax: Land: E-Mail: Standard dimensions, see Datasheet. Measurements in mm. Thread length (incl. centering) Temperature sensor bore (thread ø, thread pitch) Connection thread (thread ø, thread pitch) Tip length (check standard dimensions) Temperature sensor bore (ø x depth) Incl. Heater band Centering length Centering ø Orifice Tip contour (radius or angle) Immersion depth (screw tip / angle) Inlet ø Nozzle size Actuation...

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