Flexible Silicone Funnel for Straining, Draining and Controlled Liquid Flow

This perforated silicone filter funnel features a stepped conical structure with multiple filtering zones on the top, side walls and lower section.

The distributed holes allow liquids to pass through while retaining larger particles, making the product suitable for draining, preliminary filtering, liquid transfer and other customized filtration applications.

Unlike rigid plastic or metal components, the flexible silicone body is less likely to crack when dropped or compressed. The funnel dimensions, wall thickness, silicone hardness, perforation diameter, hole distribution and connection structure can all be customized.

We provide OEM and ODM manufacturing services from design evaluation and mold development to sampling and volume production.

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Principais características

Stepped Conical Structure

The multi-level conical design provides several areas for customized perforation patterns.

Each section can be designed with a different diameter, wall angle, height and hole arrangement according to the required flow rate and filtration performance.

Custom Perforation Design

The top, side and bottom sections can be produced with different hole sizes and distributions.

Custom perforation options include:

• Small holes for finer preliminary filtration
• Medium holes for general straining
• Larger holes for faster draining
• Different hole sizes in separate filtering zones
• Round, slotted or custom-shaped openings
• Customized hole spacing and quantity

The appropriate design depends on the particle size, liquid viscosity and required flow rate.

Material de silicone flexível

The funnel can be manufactured from different silicone grades and hardness levels.

Soft silicone provides flexibility and convenient storage, while a firmer material can improve structural support and dimensional stability.

The recommended hardness should be selected according to the product size, wall thickness and installation method.

One-Piece Molded Construction

The funnel body and filtering sections are manufactured as one integrated silicone component.

The one-piece structure reduces unnecessary assembly joints and makes the product easier to rinse and maintain.

Rounded Edges

Smooth radii can be incorporated around the edges and transitions to reduce sharp contact points.

Available surface finishes include smooth, matte, fine-textured and other custom molded surfaces.

Cores personalizadas

The filter funnel can be produced in gray, white, black, blue, green, red or other custom colors.

Color matching is available according to Pantone references or approved physical samples.

Custom Connection Design

The upper or lower section may include a straight insertion area, retaining groove, sealing rib, anti-slip ring or other equipment-specific connection structure.

For equipment-mounted applications, customers should provide accurate mating dimensions and tolerances.

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Especificações do produto

Final dimensions, tolerances, materials, perforation patterns and inspection standards are subject to the approved drawing and sample.

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Aplicações típicas

The silicone filter funnel can be developed for:

• Kitchen food straining
• Ingredient draining
• Preliminary liquid filtration
• Sauce and beverage processing
• Liquid transfer
• Container filling assistance
• Food-processing equipment
• Household kitchen accessories
• Flexible filter inserts
• Custom equipment filtration components

The final silicone grade, hole size and product structure should be selected according to the actual material being filtered and the intended operating environment.

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Opções de personalização

Funnel Dimensions

The overall height, upper diameter, lower diameter, taper angle and individual step dimensions can be customized.

For products installed in a container or machine, please provide the mating inner diameter, outer diameter, insertion depth and tolerance requirements.

Hole Diameter

Hole diameter has a direct effect on both filtration performance and liquid flow.

Smaller holes retain finer particles but may reduce the flow rate. Larger holes increase drainage speed but allow larger particles to pass through.

We recommend providing the following information:

• Approximate particle size
• Liquid type
• Liquid viscosity
• Target flow rate
• Desired filtration result

Hole Quantity and Distribution

The hole quantity and arrangement can be modified according to the filtration area and required drainage speed.

Holes may be concentrated in one section or distributed across several stepped zones.

Dureza do silicone

A softer silicone is suitable when flexibility or compact storage is required.

A firmer silicone may be more appropriate for larger products or applications requiring better shape retention.

The final hardness should be evaluated together with wall thickness and product dimensions.

Espessura da parede

Wall thickness can be adjusted to balance flexibility, durability and structural support.

Thicker walls improve stiffness but may reduce flexibility. Thin walls provide easier deformation but require careful structural evaluation.

Correspondência de cores

Custom colors can be matched according to:

• Pantone references
• Amostras físicas de cores
• Amostras de produtos existentes
• Padrões de cor aprovados pelo cliente

A pre-production color sample can be prepared when strict color consistency is required.

Connection Structure

Custom connection options include:

• Straight plug-in section
• Ranhura de retenção
• Nervura de vedação
• Anti-slip ring
• Flanged edge
• Degrau interno
• Equipment-specific mounting structure

The mating component or equipment drawing should be provided for accurate evaluation.

Logótipo moldado

Brand names, model numbers, cavity numbers and identification marks can be molded directly into the silicone surface.

Embossed and debossed options are available.

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Design Considerations

Particle Size

The required hole diameter should be smaller than the particles that need to be retained.

For materials with irregular particle sizes, a sample filtration test is recommended before mass production.

Liquid Viscosity

High-viscosity liquids generally require larger holes, more filtering area or a steeper funnel angle.

Flow Rate

A larger number of holes can increase the total flow capacity, but the spacing between holes must be sufficient to maintain product strength.

Structural Support

Large silicone funnels may require thicker walls or a higher silicone hardness to prevent excessive deformation during use.

Temperature Requirements

Please provide the normal operating temperature, maximum short-term temperature and cleaning conditions so that a suitable silicone material can be evaluated.

Food-Contact Requirements

For food-contact applications, the required market, material standard, testing method and documentation should be confirmed before tooling and production.

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Fabrico de silicone OEM e ODM

We support the complete development of custom silicone filtration components.

Os nossos serviços incluem:

• Avaliação da estrutura do produto
• Design-for-manufacturing review
• Seleção de materiais
• Silicone hardness recommendations
• Perforation design evaluation
• Confirmação de desenhos em 2D e 3D
• Conceção e fabrico de moldes
• Produção de protótipos e amostras
• Correspondência de cores
• Inspeção dimensional
• Volume production
• Embalagem personalizada

Customers may provide a completed drawing, an existing physical sample, reference images or the dimensions of the mating container or equipment.

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Processo de Fabrico Personalizado

1. Apresentação dos requisitos

The customer provides the application, drawings, samples, hole requirements and estimated quantity.

2. Avaliação técnica

We review the funnel dimensions, wall thickness, silicone hardness, perforation pattern, connection structure and manufacturing feasibility.

3. Drawing and Quotation Confirmation

The product drawing, tooling plan, material, color and quotation are confirmed.

4. Fabrico de moldes

The mold is manufactured after all structural and dimensional details are approved.

5. Produção de amostras

Initial samples are produced for dimensional, flow, filtration and assembly testing.

6. Sample Testing and Approval

The customer checks the hole size, filtering result, flow rate, hardness, fit and appearance.

7. Produção em massa

Volume production begins according to the approved drawing and sample.

8. Inspeção e embalagem

Os produtos acabados são inspecionados e embalados de acordo com os requisitos acordados.

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Informações necessárias para a elaboração de um orçamento

To prepare an accurate quotation, please provide:

1. A 2D or 3D product drawing
2. Overall funnel dimensions
3. Upper and lower connection dimensions
4. Required hole diameter
5. Hole quantity or distribution requirements
6. Type of liquid or material being filtered
7. Approximate particle size
8. Silicone material requirements
9. Preferred silicone hardness
10. Pantone color reference
11. Requisitos relativos ao logótipo
12. Quantidade estimada da encomenda
13. Required testing or documentation
14. Requisitos de embalagem
15. Calendário de entregas previsto

When a complete drawing is unavailable, detailed photos, key dimensions and an explanation of the intended application can be used for an initial evaluation.

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Perguntas frequentes

Can you manufacture the funnel according to our existing sample?

Yes. You may send us a physical sample for dimensional and structural evaluation. For equipment-mounted products, please also provide the mating component.

Can the hole diameter be customized?

Yes. The hole diameter, quantity, shape, spacing and distribution can all be customized according to the required filtration and flow performance.

Can different sections use different hole sizes?

Yes. The top, side walls and lower sections can be designed with different hole diameters and patterns.

Can you use food-contact silicone?

Silicone materials can be selected according to the application and requested standard. Please confirm the target market, testing requirements and required documentation before quotation.

Can the silicone hardness be adjusted?

Yes. The hardness can be modified according to the product size, flexibility, wall thickness and structural support requirements.

Can you match our brand color?

Yes. Please provide a Pantone number or approved physical color sample.

É possível adicionar o nosso logótipo?

Yes. Embossed or debossed logos, product numbers and identification marks can be incorporated into the mold.

Do you provide samples before mass production?

Yes. Samples are produced after tooling so that the customer can test the dimensions, flow rate, filtration result, hardness and assembly performance.

Qual é a quantidade mínima de encomenda?

The MOQ depends on the product size, material, number of colors, tooling structure and packaging requirements.