Graco Inc.

LSR Nozzles and Color Injectors  for Liquid Silicone Rubber Applications

Graco Fluid Automation

Where to Buy

LSR Shutoff Nozzles

Models SN712, SN713 and SN714 - Double-Acting LSR Shutoff Nozzles

  • Sleek profile with no external actuating lever
  • Eliminates side forces and assures leak-free operation
  • Rear-located water-cooling ports provide exceptional clearance into platen and exceptional cooling when in contact with a heated mold
  • Standard nozzle tip design offers quick tip changes without the need to remove  assembly from machine
  • Diving tips offer a removable tip with a replaceable PTFE seal
  • Over 100 different nozzle adapter designs, in both flange & screw-in styles
  • Connect to most LSR injection molding machine barrels
  • Custom designs in either style also available
  • Use on 5 to 500-ton machines

Please refer to the bottom of this page for a Nozzle Selection Guide.

Special Adapters for most Injection Molding Machines. There are several Tip Styles and Lengths to choose from.
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Color Injectors

Model SN751 Color Injectors

  • Supplies a pulse of colorant material into the silicone material stream
  • Attaches to static mixer or manifold assembly
  • Requires only one-third the time necessary to change colors
  • Use with 6-ounce, 12-ounce, 3-quart and 3-gallon size feeds
  • Easily control the amount and frequency of material injected
  • Flexibility to achieve color ranges from tints to full hues

Specifications

  • Air cylinder dia: 1.25 in
  • Metering pin dia.: .1875 in
  • Pressure ratio: 44:1
  • Stroke adjustment: 0 TO .5 in
  • Shot volume: .226 cc max
  • Air requirement (feed tank): 25 TO 100 psi
  • Air requirement (injector): 25 TO 100 psi
  • Power requirement (4-way valve): 120 vac or 24 vdc

Accessories

040116 - 6-oz. cartridge pressure feed system

040486 - 12-oz cartridge pressure feed system
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K553 - 3-qt feed tank with pressure regulator and gage
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K560 - 3-gal feed tank with pressure regulator and gage
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A970-1a - 6-tank stand with flip-flop timer controller
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A971-1a - Single tank stand with flip-flop timer controller

Meter-mix PLC controlled units are factory installed

LSR Color Injector

Nozzle Selection Guide

Use the following information to identify the correct nozzle configuration for your application. Each section below provides configuration options with a specific number. Use the visual guide to reference the correct number quantity and placement for each section. When completed, the final nozzle configuration should include 13 individual numbers.

LSR nozzle selection guide

1. Nozzle Style

SN713 - Small Size (SN713 Series) Nozzle
0663, M0668, M0700 - Small Size (SN713 Series) Super Short Nozzle
SN712 - Medium Size (SN712 Series) Nozzle
M0707 & M0712 - Medium Size (SN712 Series) Super Short Nozzle
SN714 - Large Size (SN714 Series) Nozzle

2. Tip Style

1A - Standard Length 1/2” Radius Ball Nose (A, B, C)
2A - 12mm Diving Tip (B)
3A - Flat Tip (A, B, C)
4A - Extended Length 1/2” Radius Ball Nose (A, B, C)
6A - Shortened Length 1/2” Radius Ball Nose (A & B)
8A - 15mm Diving Tip, Screw-In Tip (A & B)
9A - 20mm Diving Tip, Screw-In Tip (A & B)
10A - 25mm Diving Tip, Screw-In Tip (A & C)
11A - Shortened Length 25mm Diving Tip, Screw-In Tip (A)
12A - Shortened Length 15mm Diving Tip, Screw-In Tip (A & B)
13A - Direct Cavity Shut-Off Nozzle Tip (B)
14A - Shortened Length 20mm Diving Tip, Screw-In Tip (B)
15A - Standard Length 10mm Radius Ball Nose (B)
16A - Extended Length 10mm Radius Ball Nose (B)
XSH - Super Short Length (D, E, F, G)

3. SPC

Special Modification
SN713 Series ONLY: Shortened Nozzle Base & Nozzle Pin

4. Outlet Hole Diameter

.078 - Standard Diameter Outlet (A, B & D)
.094 - Special Diameter Outlet (A, B & D)
.103 - Standard Diameter For Direct Cavity Shut-Off Tip (ONLY B)
.109 - Standard Diameter For Diving Tips (ONLY B & C)
.125 - Standard Diameter For Diving Tips (ONLY A & F)
.147 - Special Diameter Outlet (A, F, G)
.188 - Standard Diameter Outlet (C)
.210 - Special Diameter Outlet (C)

Availability Reference

A = SN712
B = SN713
C = SN714
D = M0663 & M0700
E = M0668
F = M0707
G = M0712