With more precise mixing in manufacturing liquid silicone rubber products you end up with less wasted material and a better end product meaning more savings and happier customers. The F4-5 and F4-55 machines have one the most precise abilities to meter material flow to an almost microscopic level. It's helical gear contains multiple gear teeth to measure flow in incredibly small increments.

The F4-5 and F4-55 are ideal solutions for highly precise on-ratio manufacturing projects in the following industries:

LSR Injection Molding for Medical Device Manufacturing

LSR Injection Molding for Infant Care Item Manufacturing

LSR Injection Molding for Consumer Product Manufacturing

LSR Injection Molding for Automotive Applications

LSR Injection Molding for Industrial Part Manufacturing

LSR Injection Molding for Wearables Manufacturing

Features

Increased Precision: High-resolution ratio control offers more assurance the machine will remain on-ratio

Better Color Control: Mix two additive streams at a ratios ranging from 0.5 to 6%.

Easy Setup and Operation: Proprietary Graco Control Arhitecture (GCA) is user friendly, providing easier operation and troubleshooting.

Maintains Material Integrity: Stainless steel components meet he standard for clean room applications to prevent contamination, and cure inhibition and discoloration of material.

Less Material Waste: Individual pump drive cylinders and optional sensors allow for automatic ratio control minimizing waste.

Easy Maintenance: Quick-disconnect pump removal mechanic simplifies the cleaning process.

Cleanroom Convenience: A smaller footprint and casters (optional on F4-55) allow for system movement and maintenance.

Specifications

Viscosity Range: 50,000 to 500,000,000 Centipoise (cps)

Flow Rate: Minimum: 10 g/min to Maximum: 5lb/min @ 500,000 cps

Max. Output Pressure: 3,000 psi

Ratio: 1:1

Pigment Ratio Range: 0.5% to 6%

Air Requirements: 80-100 psi

Power Requirements: 95-264 VAC, 50/60 Hz, 4 A single phase

Superior mixing, air-powered cylinders, a variable viscosity range and low-level material shut off switches to maintain ratio and save expensive material waste, the Model S4 series LSR pumps are ideal for liquid silicone rubber product molding.

The 8-S-5M and 8-CS4-5M are ideal solutions for highly precise on-ratio manufacturing projects in the following industries:

LSR Injection Molding for Medical Devices

LSR Injection Molding for Consumable Manufacturing

LSR Injection Molding for Electronic Manufacturing

8-S4-5M Features

Continuous Flow: Eight-inch pneumatic drive cylinder keeps material flowing at a consistent rate.

Easy Setup and Material Changes: 5-gallon follow plates allow you to dispense out of straight-sided pails.

Better Flow Control: Separate material ram controls allow individual pressure control on each pail for better flow control.

Superior Quality Mixing: Use the standard 12-element static mixer to blend A and B material, or the optional 32-element static mixer to improve product quality.

8-CS4-5M Features

Improved Color Depth: Pigment ratio is adjustable from 1-5 percent to help you achieve precise color depth.

Variable Pump Sizes for Flexibility in Applications: Pumps ranging from 1 to 40% of total A and B volume for pigment and other additives.

Improved Safety: The high-pigment pressure safety shutoff circuit and pneumatic main air shutoff valve (CS4-5 version only) offer added safety against excessive pressure or hose rupture on the third-stream line.

Caster wheels and water-cooling plates for staic mixer and optional

Specifications

Viscosity Range: 50,000 to 2,500,000 Centipoise (cps)

Flow Rate: 2 to 3lb/min @ 500,000 cps

Max. Output Pressure: 3,700 psi

Ratio: 1:1, Fixed

Pigment Ratio Range: Up to 40 percent

Air Requirements: 10 cfm @ 100 psi, range based on third stream pump selection

Power Requirements: (CS4-5) 120 vac/50-60 cycle/single phase

The single acting design of the mountable Model 622 maintains consistent, accurate pressure, removing any possibility of pressure variations affecting shot sizes. Its high level of ratio accuracy and ability to add a third and fourth stream makes it ideal for small-shot LSR product manufacturing.

The Model 622 is an ideal solution for highly precise on-ratio manufacturing projects in the following industries:

LSR Injection Molding for Medical Device Manufacturing

LSR Injection Micro-Molding Manufacturing

Model 622 Features

Space-Saving: Mount where it is most convenient or use as a stand-mount or tabletop model.

Cost-Saving: A reduced number of components and fewer valves than most designs lowers the cost of cleaning maintenance

Increased Precision, Less Waste: Single-acting design with closed-loop control provides repeatable pressures and elminates shot-size variations, thereby reducing waste.

Flexible Feeding System: Feed material using cartridges, pressure feed pots or feed pumps.

Increased Efficiency: For small shots, program the 622 to refill after multiple shots rather than after each individual one.

Third and Fourth Stream Options: Add color or silicone fluid through the standard third-stream program.

Corrective Mechanisms: Valves are independently controlled and thus can be adjusted if different feed pressures or viscosities exist.

Hoses, mixer and manifold are optional.

Specifications

Cartridge Feed: 12 oz. and 20 oz.

Shot Size: 40 cc maximum (20 cc per cylinder)

Mixed Material Volume: Total system volume with full plungers and 1 ft hose, 80cc

Ratio: 1:1, Fixed

Feed Pressure: 3000 psi maximum at barrel inlet

Controls: PLC

The Model 633 comes with double-acting plungers being driven by a common cylinder to ensure that material is delivered at a consistent 1:1 ratio. The larger shot size capacity and ability to feed material to multiple locations makes this LSR machine a preferred choice for high-productivity manufacturing environments.

The Model 633 is an ideal solution for highly precise on-ratio manufacturing projects in the following industries:

LSR Injection Molding for Medical Device Manufacturing

LSR Injection Molding for Consumable Manufacturing

LSR Injection Molding for Electronic Manufacturing

Model 633 Features

Flexible: Programmable feed pressure makes it possible to utilize a common tandem feed station for one or more locations. Use the third stream option to simultaneosly feed different mixes.

Cost-Saving: A reduced number of components and fewer valves than most designs lowers the cost of cleaning maintenance.

Consistent Refills, Less Waste: The pneumatic proportional air-driven cylinders keep material refilling at a consisent rate.

Material Saving: With ratio tied to the A and B transducers, and an audible and visible refill alarm, the possibility of drawing a vacuum and wasting material is very low.

Time-Saving Operation: A quick refill time of only three seconds at 3000 psi pump pressure keeps manufacturing running at a quick pace.

Wider Variability in Mold Sizes: With a maximum shot size of 150 cc, Model 633 is capable of handling a wide range of manufacturing jobs.

Hoses, mixer and manifold are standard.

Specifications

Feed Stations: 657, 657-4 and 659

Shot Size: Up to 150 cc (75 cc per cylinder)

Additives: Third stream option

Ratio: 1:1, Fixed

Feed Pressure: 3000 psi maximum

Controls: PLC