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Sprue Bushing / Single Nozzle SB15

Sprue Bushing / Single Nozzle SB15
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Sprue Bushing / Single Nozzle SB15

Product catalog summary
Overview: The Synventive SB15 hot sprue bushings are designed for high capacity and high-quality melt transfer in injection molding, suitable for large shot sizes and viscous materials. They feature a flush-mounted design with heater band protection, requiring only one heater band for operation. Spare heater bands and thermocouples are included for models with an 'A' length greater than 200mm.
Specifications:
  • Max Operating Pressure: 20,000 psi (1400 bar)
  • Max Operating Temperature: 650°F (345°C)
  • Mode of Operation: Horizontal
  • Heater: 44.5 mm I.D. x 50mm, 750 W, 120 or 240 V
  • Heater Clearance Diameter: 82.5mm
Ordering Information:
  1. Select bushing based on mold depth ('A' dimension).
  2. Specify desired tip style and additional requirements such as material type and orifice diameter.
  3. Special orders available for 420 SS bushings for corrosive materials.
Tip Styles:
  • CV-10: Gate/Full Flow
  • CV-11: Gate/Cone
  • CV-20: Open/Full Flow
  • CV-21: Open/Cone
Material Compatibility: The bushings are compatible with a wide range of materials, including ABS, Acetal, Acrylic, Nylon, Polycarbonate, Polyester, Polyethylene, Polypropylene, and more. Specific recommendations are provided for glass-reinforced and other specialized materials.
Accessories: Synventive offers temperature control systems and replacement parts such as band heaters and thermocouples.
Maintenance Procedures: Detailed instructions are provided for tip and insert removal and replacement, including torque specifications and the use of specialized tools to ensure proper installation and heat transfer.
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Catalog excerpts

Sprue Bushing / Single Nozzle SB15-1

Hot Sprue Bushings Products/Technical Guide >

 Open the catalog to page 1
Sprue Bushing / Single Nozzle SB15-2

1.Cold bushing length must allow for thermal expansion to fit specified mold length.Allow .003 x ("A") for thermal expansion of bushing.2.All dimensions are in mm. 3.420 SS bushings are available on special order for processing PVC or other corrosive materials. >

 Open the catalog to page 2
Sprue Bushing / Single Nozzle SB15-3

Tip StyleDescription > SB15 Cad Library Drawings Tip StyleDrawing CV-10SB15CV10 (section) CV-11SB15CV11 (section) CV-20SB15CV20 (section) CV-21SB15CV21 (section)Nozzle StyleDrawingA=106-200SB15200S (section)SB15T (top)A=201-330SB15330S (section)SB15T (top)A=331-380SB15380S (section)SB15T (top) CV-10Gate/Full Flow CV-11Gate/Cone CV-20Open/Full Flow CV-21Open/Cone TipSphericalTipTip RunnerTip Style > a RadiusExtensionRadiusOrifice .500 or.750 (12.7 or 19mm)(8mm)(0-4.7mm) CV-10YesYesYesNo > b CV-11YesYesNoYes > c CV-20YesNoNoNoCV-21YesNoNoNo > When gating into a runnerCV-20 or -21 tip styles are...

 Open the catalog to page 3
Sprue Bushing / Single Nozzle SB15-12

MATERIALSynventive Hot Sprue BushingsUSB5*,SB5*,USB8,SB8,SB13,SB15 & SB24** > GR-Glass ReinforcedNR-Not Recommended for Most ApplicationsRecommended Tip/Bushing1.Most Suitable 2.Suitable with some reservations: e.g.Gate Control,etc. (Not as good as category 1) See page 24 for correct Orifice Sizing*USB5 & SB5 Bushings are NR-For Glass Filled Materials.**SB24 Bushings are available with CV-10 & CV-20 tips only.***See Orifice Diameter Requirements,page 24. Synventive Tip Styles > CV-10CV-11CV-20CV-21 ABS1111 ABS GR ***1212 ACETAL (POM)NR1NR1 ACETAL GR1212 ACRYLIC1111 LCPNR1NR1 PPO1111 NYLON 6 ***NR1NR1...

 Open the catalog to page 12
Sprue Bushing / Single Nozzle SB15-13

This is the most widely used tip. This tip style is used primarily to provide Vestige height is equal to orifice diameter. reduced vestige height,0.4- 0.9mm high Provides best gate control for for all materials. most materials. Cone Point adds heatto center of orifice for Open flowbore provides lowpressure drop. nylon,acetal and PBT. Tramp metal can usually flow through tip. Orifice adjustment requires added Orifice is increased by simple straight reaming of diameter. machining to hold land length at0.08/0.13mm. > Same as CV-10 except gate orifice is > Same as CV-11 except gate orifice is machined...

 Open the catalog to page 13
Sprue Bushing / Single Nozzle SB15-14

Single Zone 15 Amp Temperature Controller includes one thermocouple connector (80-M2MJ)CatalogAmp/Voltage Input OutputNumberconnectorconnector Catalog No.*Catalog No.*80-PIM1A1515A/240V80-AC1524F 80-AC1524M (NEMA 6-15)(NEMA 6-15)80-PIM1A15115A/120V80-AC1512F 80-AC1512M(NEMA 5-15)(NEMA 5-15) > Synventive offers a complete line of single and multi-zone temperature control systems.For details,see Temperature Control SystemsDesign Manual. 14 of 15 size="-2">

 Open the catalog to page 14
Sprue Bushing / Single Nozzle SB15-15

Tip Removal > 1.Place a 27mm 6 point deep socket wrench over split wrench.Torque off tipwith wrench assembly.See Figure 1.2.Tips are usually removed at room temperature.If tip does not break free,heat bushing to operating melt temperature. Insert Removal > 1.The conductive BeCu insert should only be removed if it is to be replaced by a new insert.Reinstallation of the same insert may affect the heat transfer from the steel body to the BeCu insert.2.Using an 8.9mm dia.drill,machine into the center of the insert for a depth of 15mm,and then thread using a M10 tap.3.After the insert is tapped,thread...

 Open the catalog to page 15

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