Technical Catalogue Screwed-in line
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Technical Catalogue I Screwed-in line I Ed. 2014 Rev.00/01-14 Technical Catalogue Screwed-in line Ed. 2014 Rev.00/01-14

Introduction of Screwed-in INject system Product terminology Product range Max flow capacity of nozzle Gate configuration Injection point features Available configuration of nozzle series Material compatibility Drawing’s general tolerances 3. SCREWED-IN NOZZLE SPECIFICATION Standard nozzle lenght Nozzle seat dimensions Free flow injection Torpedo injection Conical valve gating injection Cylindrical v.gating injection Cooling bushing Types of standard hot runners Hot runner & components pockets’ patterns Screwed-in extension Cylinders on Manifold Cylinders on Plate Pin specification Product...

SINGLE SPECIFICATION INTRODUCTION CYLINDER INFORMATION MANIFOLDSPECIFICATION NOZZLENOZZLE TECHNICALSPECIFICATION

INject Screwed-in Series: MAIN FEATURES The new Screwed-in INject line was developed to offer cost effective hot runner systems for a wide range of applications and plastic materials, granting at the same time good quality and performances: • • • • • • Robust design Easy assembling Easy maintenance No risks of plastic leakage Low heat dissipation from system and mold Lower power consume System main features: • • • • Screwed-in nozzles Screwed-in monocomponent inlet extensions Brass coiled heater sleeves for nozzles and inlet extensions Different heater configuration (number of heating...

SINGLE SPECIFICATION INTRODUCTION CYLINDER INFORMATION MANIFOLDSPECIFICATION NOZZLENOZZLE TECHNICALSPECIFICATION

PRODUCT TERMINOLOGY (10) Manifold clamping screw (w) End Ring through cavity

PRODUCT RANGE "Inject" suggest Injection screwed-in system product range composed by four series that are different between them for flow capacity and gate type. Series are (in order of dimension): -Py- -My- -Gy- -Ay-. In the scheme below principal specs of every serie: Series Py Max flow capacity per nozzle ØG1 [v alv e gating] ØG2 [free flow / torpedo] H Hc minimum cy linder seat on manifold Le X [free flow / torpedo / v .gating] (*) My series - ØB=12mm only for Cy lindrical Valv e Gating injection SHORT LAND v ersion.

MAX NOZZLE FLOW TABLE The max flow capacity of ev ery plant nozzle is show n in the follow ing tables NOZZLE SERIES MATERIAL CODE Semi-crystalline polymers Free flow Valve gating Free flow NOZZLE SERIES MATERIAL CODE Amorphous polymers Valve gating Free flow Valve gating Free flow NOZZLE SERIES MATERIAL CODE Semi-crystalline polymers Free flow Valve gating Free flow NOZZLE SERIES MATERIAL CODE Amorphous polymers Valve gating Free flow Valve gating Free flow The values given refer to the average features of every material family. Single specific materials might sensibly differ from such...

GATE CONFIGURATION The following table shows different layouts of injection and the way for assembling the nozzle with the End Rings available for creating the configurations suitable. Molding Material Ex ternal Free Flow Injection Type Torpedo monohole Torpedo multihole STANDARD Conical v . gating PEARL Conical v . gating (*) See pag. XX - "Material Compatibility" table Short Medium Bushing through the cavity(*) (*) Available by three lenght: "Short", "Medium", "Long"

INJECTION POINT FEATURES FREE FLOW Free flow is characterised by the presence of a small plug in the molded component. The plug is formed during the solidification phase and serves to prevent additional plastic material from seeping from the gate. If this were to happen earlier, for example during the packing stage, the molded component might well not meet the packing density required, be misformed or subject to inaccurate size or weight. On the contrary, should the plug fail to form, this might well lead to the problem of leaks. Consequently, when component molding is performed with a...

TORPEDO: The torpedo tip is recommended when a high quality finish at injection point is a main requirement. The torpedo tip is not recommended when the molded materials are subject to deterioration as a consequence of high shear rates or if the load is high compared to the relatively small gate size. In general, the torpedo type can be employed with both crystalline and amorphous materials. A torpedo tip is recommended as an alternative to free flow when the molded materials are subject to problems regarding the thread, such as PP, ABS, etc. A torpedo tip is recommended as an alternative...

VALVE GATING: Systems with conical and cyndrica l sealing do not require gate solidification before moving on to the molding of the next compo nent as the gate is closed by a seal. This layout allows relatively wider g ates to be used and, consequently, is recommended when molding materials include those that a re affected by deterioration du e to high shear rates and loaded materials. Gate dim ension also helps optimise packing (wit hout the problem of sudd en gate cooling typically associated with materials). There fore, sealing systems a re suitable for all technica l applicatio ns where...

AVAILABLE CONFIGURATIONS FOR EACH NOZZLE SERIE The table below describes the available injection point configurations for each type of nozzle. FREE FLOW CONICAL VALVE GATING CYLINDRICAL VALVE GATING

MATERIAL COMPATIBILITY • POSSIBLE, BEST CONFIGURATION O GENERALLY POSSIBLE, DEPEND BY MATERIAL For details contact HRS technical office O GENERALLY NOT POSSIBLE. For details contact HRS technical office

DRAWING'S GENERAL TOLERANCES TOLERANCES Follow ing the general tolerances apply ing to the present catalogue Metric sy stem used for quoting Unit: mm DIMENSIONS SURFACE ROUGHNESS PROJECTION European projection sy stem used for graphic display ing DIMENSION CONVERSION TABLE The follow ing table allow s translation of specific dimensions according to the International Unit Sy stem (SI) corresponding value

SINGLE SPECIFICATION INTRODUCTION CYLINDER INFORMATION MANIFOLDSPECIFICATION NOZZLENOZZLE TECHNICALSPECIFICATION