Filler: Flow Rate Range 0.1-50 cm³/s, Temperature Range 20-80°C

Component Specifications

Definition

A precision-engineered component in liquid silicone rubber (LSR) injection molding systems responsible for controlled introduction of filler materials (such as pigments, reinforcing agents, or functional additives) into the silicone polymer stream. It ensures homogeneous dispersion and maintains material properties during the injection molding process.

Working Principle

Operates using a precision metering mechanism (typically piston or screw-driven) that draws filler material from a reservoir and injects it into the main LSR stream at a controlled rate. The system synchronizes with the main injection unit to maintain proper filler-to-polymer ratios, often utilizing feedback loops from flow sensors and pressure transducers.

Materials

Stainless steel (316L or 17-4PH) for corrosion resistance, hardened tool steel for wear surfaces, PTFE or PEEK seals for chemical compatibility with LSR and fillers, ceramic coatings on critical wear components.

Technical Parameters

Parameter	Typical range	Notes & selection driver
Repeatability	±0.2%
Connection Size	DN10 to DN25
Flow Rate Range	0.1-50 cm³/s
Maximum Pressure	250 bar
Control Interface	Digital (EtherCAT/Profibus)
Metering Accuracy	±0.5% of set volume
Temperature Range	20-80°C

Ranges are indicative industry figures for RFQ preparation, not a supplier commitment. Confirm every value and standard with the legal manufacturer before ordering.

Standards

ISO 9001, ISO 14001, DIN 16780, DIN EN ISO 10993

Parent Products

This component is used in the following industrial products

Liquid Silicone Rubber

A two-part, platinum-catalyzed silicone elastomer that cures at elevated temperatures to form durable, flexible rubber parts.

View Product Details

Engineering Analysis

Risks & Mitigation

Material contamination from improper cleaning
Wear from abrasive fillers reducing accuracy
Seal degradation from chemical exposure
Inconsistent filler dispersion affecting product quality

FMEA Triads

Trigger: Abrasive filler particles
Failure: Excessive wear on metering surfaces
Mitigation: Use hardened surfaces/coatings, implement particle size limits, regular inspection schedule

Trigger: Seal chemical incompatibility
Failure: Leakage and contamination
Mitigation: Material compatibility testing, scheduled seal replacement, secondary containment

Trigger: Control system calibration drift
Failure: Inaccurate filler ratios
Mitigation: Automated calibration routines, redundant sensors, statistical process control monitoring

Industrial Ecosystem

Compatible With

Interchangeable Parts

Compliance & Inspection

Tolerance

±0.5% volumetric accuracy, ±0.2% repeatability

Test Method

ISO 9001 quality management, DIN 16780 for rubber processing machinery, material compatibility per ISO 10993

Procurement Evaluation Criteria

A practical evidence checklist for RFQ preparation and supplier evaluation.

Technical documentation

Request current drawings, revision history, and a signed specification sheet.

Manufacturing capability

Verify equipment lists, process limits, capacity, and representative production evidence.

Inspection readiness

Confirm test methods, calibrated equipment, sampling plans, and traceable reports.

Supplier transparency

Check the legal entity, factory address, ownership, certifications, and direct contacts.

CNFX does not score or rank suppliers. Buyers must verify all claims and documents with the legal manufacturer before ordering.

Manufacturers of Filler

Manufacturer profiles associated with Filler.

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Related Components

Mold Release Coating

Specialized coating applied to molds to facilitate easy release of silicone seal rings during manufacturing.

Silicone Polymer Base

Silicone polymer base is a high-temperature resistant polymer material used as the foundational component in silicone rubber compounds for industrial applications.

Reinforcing Filler

Reinforcing filler is a material added to silicone rubber compounds to enhance mechanical properties, thermal stability, and durability in high-temperature applications.

Processing Aids

Processing aids are specialized additives used to improve the manufacturability and performance of high-temperature silicone rubber compounds during industrial processing.

Frequently Asked Questions

What types of fillers can this component handle?

Designed for various fillers including pigments, reinforcing fibers (glass/silica), conductive particles, and thermal additives. Material compatibility depends on particle size (typically 1-100μm) and abrasiveness.

How is filler ratio controlled during operation?

Through precision servo-driven metering with real-time feedback from flow sensors. The system adjusts injection rate based on main LSR flow to maintain consistent filler concentration (±0.5%).

What maintenance is required for filler components?

Regular cleaning to prevent material buildup, seal replacement every 6-12 months depending on usage, calibration verification quarterly, and wear inspection on metering surfaces annually.

Data Basis

Editorial classification, named public sources where available, and source-reviewed manufacturer records. See the editorial policy.

Preliminary Technical Classification

This page supports structured research, RFQ preparation, and supplier evaluation. It does not replace buyer-led supplier qualification, standards review, or technical approval.

Filler