PP
Polypropylene
Excellent flow and low density make PP well suited to high-volume multi-cavity production.
Shrinkage1.0 to 2.0%
Temperature−20°C to 80°C
Tensile Strength25 to 40 MPa
Ideal ForContainers, consumer products, high-volume parts
Family & Multi-Cavity Molding
More parts.Every cycle.
Produce multiple parts in each molding cycle for higher output, better efficiency, and scalable production.
2-64Cavity Formats
CostReduction
HighVolume Output
FamilyMold Systems
Independently Certified
Engineering Workflow
From cavity planning to higher output
We plan the cavity layout, develop balanced tooling, validate each cavity, and refine the process to achieve consistent parts and efficient production.
01
DFM Review
Reviewing the layoutWe review part sizes, cavity arrangement, filling, runner layout, cooling, and parting lines before tooling. Required changes help achieve balanced and efficient production.
Cavity LayoutRunner BalanceParting LineCooling Layout
Deliverables
- DFM Report
- Cavity Layout
- Mold Recommendations
02
Production Tooling
Building the moldOnce the layout is approved, the mold is developed with the required cavity count, runner system, cooling, and ejection features.
Cavity CountRunner SystemCooling LayoutEjection System
Deliverables
- Production Mold
- Tool Validation
- Trial Ready
03
T1 Sampling
First cavity samplesThe first parts from each cavity are inspected to confirm balanced filling, dimensions, appearance, and consistency across the mold.
Cavity InspectionFill BalanceDimensional CheckFitment Testing
Deliverables
- T1 Sample Parts
- Inspection Report
- Production Approval
04
Quality Control
Checking each cavityParts from each cavity are checked during production to maintain consistent dimensions, appearance, and performance across the complete mold.
Cavity VerificationDimensional InspectionVisual StandardsMaterial Check
Deliverables
- Quality Report
- Batch Verification
- Approved Parts
05
Full Production
Manufacturing at scaleAfter approval, production runs with the validated cavity layout and process. Finished parts are inspected, separated, packaged, and prepared for delivery.
Production RunCavity OutputFinal InspectionPackaging
Deliverables
- Finished Components
- Quality Documentation
- Shipment Ready
Material Selection
Multi-cavity thermoplastics
Choose materials based on flow, shrinkage, cooling, dimensional stability, and production requirements. The right material helps maintain consistent results across cavities.
ABS
Acrylonitrile butadiene styrene
Reliable processing and good dimensional performance for consistent multi-cavity production.
Shrinkage0.4 to 0.7%
Temperature−20°C to 80°C
Tensile Strength40 to 50 MPa
Ideal ForEnclosures, consumer products, automotive parts
PC
Polycarbonate
High strength and impact resistance for demanding components produced across multiple cavities.
Shrinkage0.5 to 0.7%
Temperature−40°C to 120°C
Tensile Strength55 to 75 MPa
Ideal ForHousings, safety components, industrial products
PA66
Polyamide 66 (nylon)
High strength and wear resistance for mechanical parts requiring consistent production.
Shrinkage0.7 to 1.5%
Temperature−30°C to 150°C
Tensile Strength80 to 100 MPa
Ideal ForGears, brackets, mechanical components
POM
Polyoxymethylene (acetal)
Excellent dimensional stability and low friction for precision components.
Shrinkage1.8 to 2.2%
Temperature−40°C to 90°C
Tensile Strength60 to 70 MPa
Ideal ForGears, bushings, precision assemblies
TPE
Thermoplastic elastomer
Flexible material for multi-part designs requiring soft-touch or sealing features.
Shrinkage1.5 to 2.5%
Temperature−30°C to 100°C
Tensile Strength5 to 25 MPa
Ideal ForSeals, grips, flexible components
PBT
Polybutylene terephthalate
Strong, dimensionally stable engineering polymer with good electrical and thermal performance.
Shrinkage1.5 to 2.0%
Temperature−40°C to 150°C
Tensile Strength50 to 70 MPa
Ideal ForConnectors, electrical parts, automotive components
PEEK
Polyether ether ketone
High-performance polymer for multi-cavity components exposed to extreme temperatures and loads.
Shrinkage1.0 to 1.3%
Temperature−50°C to 250°C
Tensile Strength90 to 110 MPa
Ideal ForMedical devices, aerospace, high-heat components
Production Capabilities
What multi-cavity molding delivers
Multi-cavity molding increases parts per cycle while maintaining controlled filling, consistent quality, and efficient production for higher-volume requirements.
01
2 to 32+
Cavity Options
Multiple cavities increase output per cycle, with cavity count selected around part size, machine capacity, and production demand.
02
Multiple
Part Configurations
Produce repeated components or related parts within the same mold based on the required production configuration.
03
High
Production Output
Multiple cavities increase parts produced per cycle, improving throughput and overall production efficiency.
04
Custom
Cavity Balancing
Runner, gate, and cavity design are developed to achieve balanced filling and consistent molding conditions across the mold.
05
Medium to High
Production Volumes
Best suited to repeat production where higher output and lower cost per component are important.
06
Optimized
Cycle Times
Cooling, runner design, ejection, and process parameters are optimized for efficient cycles and consistent part quality.
Typical values shown are general industry guidelines. Actual results may vary depending on material selection, part geometry, tooling design, and processing conditions.
Surface Finishes
Every finish has a purpose.
Family and multi-cavity molding requires consistent surface finishes across every cavity to maintain uniform part quality. The right cavity finish helps ensure consistent appearance, texture, and surface characteristics across different parts and production cavities.
SPI A1
High Gloss
FinishRa 0.012 to 0.025 µm
ProcessDiamond Polish
Ideal ForElectronics, medical, optical
SPI B1
Semi Gloss
FinishRa 0.05 to 0.10 µm
ProcessFine Stone Polish
Ideal ForAppliances, automotive, consumer
SPI C1
Matte
FinishRa 0.35 to 0.40 µm
ProcessStone Polish
Ideal ForIndustrial, controls, equipment
VDI 24
Textured
FinishRa 1.60 to 3.20 µm
ProcessMold Texturing
Ideal ForAutomotive, tools, outdoor
Global Applications
Where family and multi-cavity molding performs.
From consumer products and electronics to medical, automotive, industrial, and IoT applications, family and multi-cavity molding supports efficient production of multiple or high-volume components across diverse product categories.
Consumer Products
Multiple related components produced efficiently within one tooling strategy.
Electronics & Enclosures
High-volume housings, covers, bezels, and related components.
Medical Components
Consistent production of multiple precision plastic components.
Automotive Components
Higher-volume production of repeatable interior and functional components.
Industrial Assemblies
Multiple related components produced with consistent dimensional quality.
IoT & Connected Devices
Efficient production of compact housings, covers, mounts, and related parts.
FAQ
Questions we hear before every project
What is the difference between family and multi-cavity molding?
Family molding produces different related parts in one mold, while multi-cavity molding produces multiple copies of the same part in each cycle.
Is family and multi-cavity molding suitable for my product?
It can be a good option when you need multiple related components or higher production output. We can review your parts and quantities to recommend the appropriate approach.
Can multiple different parts be produced in one mold?
Yes. Family molding can combine related components in one tool when their production requirements can be appropriately matched.
Will using multiple cavities reduce my production time?
Multiple cavities can increase the number of parts produced per molding cycle, which can improve production efficiency for suitable higher-volume requirements.
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Ready to build?
Let’s move your multi-cavity mold into production
From mold design and cavity planning to tool development, sample validation, cavity balancing, quality inspection, and production, we provide complete family and multi-cavity molding support for projects of every scale.