System Selection Guide Your Complete Hot Runner Configuration Guide

System Selection Guide © Copyright Mastip Technology Limited. Information subject to alteration. V3.23 www.mastip.com

Contents Standard Hot Runner Configuration Hot Runner System Overview Selection Overview Nozzle Range and Series Options Nozzle Range Selection Nozzle Series Selection Typical Flow Length Ratios Nozzle Flow Rates Tip Grade Selection Tip Style Selection Tip Styles Nut Grade Selection Nut Type Selection Nut Options Nozzle Assembly Order Code for MJ and X-Range Series Tip and Nut Options Plastic Material and Tip and Nut Suitability Gate Geometry Selection Gating Options - MX / BX / SX / FlowLoc™ Gating Options - YCN/Multi-Gates YCN Nut Multi-Gates MJ Nozzle MX Nozzle BX Nozzle SX Nozzle FlowLoc™...

System Selection Guide Standard Hot Runner Configuration KEY ‘Supplied by Customer ‘‘Supplied by Mastip when hot half ordered -Locating Ring‘‘ Cooling Channels 4 © Copyright Mastip Technology Limited. Information subject to alteration. V3.23 www.mastip.com ma

A Hot Runner System maintains a molten flow of plastic from the moulding machine nozzle to the gate of a plastic injection mould. Mastip Hot Runner System Benefits • Efficient cycle times • Improves part consistency and quality • Minimised gate vestige • Reduced injection pressure • Valve gates allow for sequential filling and allow family part moulds • Eliminates the cold runner that would be scrap or require re-grind • Increased process control for fine tuning of mould and part Hot Runner System Critical Areas of Performance Manifold design considerations: • Precise temperature control of the...

Selection Overview System Selection Guide Selection Overview The easiest way to select the correct hot runner system is to follow the nine steps below. ONE Fill in part and material details for later reference Part Specification Part Description Part Weight Cold runner weight (if applicable) Overall size of part L x W x H Nominal Wall Thickness Minimum Wall Thickness Gate Requirements Material Specifications Flat or recessed gate for label / printing? Filler or Glass Fibre % Material Type Manufacturer and grade OR MFI - Value, Temperature & load Mould Specifications Number of Cavities? Hot Half...

System Selection Guide Notes © Copyright Mastip Technology Limited. Information subject to alteration. V3.23 www.mastip.com

Nozzle Range & Series Options Nozzle Range and Series Options System Selection Guide Key Nozzle Range Nozzle Series Valve Gate Front Loading Single Nozzle Front loading heater for Hot Half use Confined gate area Close cavity pitching Front loading heater for Hot Half use Close cavity pitching Cost effective solution Special length nozzles available Robust heater design Limited single nozzle use Dedicated single nozzle solution Two heaters for optimum control © Copyright Mastip Technology Limited. Information subject to alteration. V3.23 www.mastip.com

Nozzle Range and Series Options Nozzle Range mastip © Copyright Mastip Technology Limited. Information subject to alteration. V3.23 www.mastip.com 9

Nozzle Range Selection System Selection Guide Nozzle Range Selection Nozzle Range Selection Nexus™ Pre-Assembled System Select FlowLoc™ TX Range Single Nozzle? Does confined gate area require MJ? Front loading required? Easy fill applications1 PP - L/t < 125 MFI = > 15 PE - L/t < 125 MFI = > 15 PS - L/t < 75 MFI = > 15 Easy fill application? Close cavity pitching? *Shot weight exceeds polymer in nozzle or is an engineering polymer Sensitive material? Notes 1. These examples are for typical applications only 2. Rigid PVC is not recommended for X Range * To calculate average mass of polymer in...

Nozzle Series Selection System Selection Guide Nozzle Series Selection Select Nozzle Series Part weight Overall size Wall section Special features List part features L/t ratio is the maximum length the material has to flow divided by the wall section Refer to table on page 12 - Typical Flow Length Ratios This is a good measure of how difficult it will be to fill the part Determine maximum flow length (L/t) Material type, grade and typical L/t ratio Determine material characteristics Use shot weight and typical L/t ratios for starting point Estimate number and size of injection points Flow analysis...

Nozzle Series Selection System Selection GuideTypical Flow Length Ratios (L/t) Material All flow lengths greater than this must be considered thin wall and the nozzle series selected accordingly. Nozzle Flow Rates Use the table below to select the correct nozzle series based on the flow rate required and the material category. If the material is a blend material (for example Medium-Difficult or Easy-Medium) always select the higher category to ensure the part can be filled. T Additives, flow length and thin wall sections all reduce the effective flow rate and shot weight. To counter the reduced...

System Selection Guide Tip Grade Selection Easy material? Minimum gate vestige or long life required? Yes Difficult material or long life? Yes For best gate: Use minimal gate land (q) and gate diameter (G) Go toTip Style Selection Tip Grades Tips are manufactured in various grades designed for different applications and wear resistance. Tip Grade Manufactured Material Default grade suitable for easy materials Beryllium Copper with Nickel coating Long life tip suitable for easy unfilled materials Beryllium Copper tipped with Steel, Nickel coating Long life tip suitable for difficult and abrasive...

System Selection Guide Tip Style Selection Tip Style Selection If gating onto a cold runner and it is suitable to follow the guidelines of “Plastic Material and Tip and Nut Suitability” on page 21, then OT is the preferred choice. Gating direct onto part? Valve Gate? Crystalline material? (i.e. narrow moulding window?) Valve Gate? Cosmetic gate required? Is Valve Gate an option? Is material sensitive to separation Yes No Crystalline material? (i.e. narrow moulding window?) Yes Long fibre filled material? © Copyright Mastip Technology Limited. Information subject to alteration. V3.23 www.mastip.c...