Plastic Injection Mould

Electronic Components & Special Shaped Parts | 3C Product Customized Tooling

Product Overview

We specialize in the design and manufacturing of precision plastic injection moulds for electronic components and special-shaped plastic parts, widely used in 3C consumer electronics.

Electronic components and irregular structural parts require more than basic molding capability. They demand:

• High-dimensional accuracy

• Stable structural integrity

• Reliable assembly compatibility

• Consistent cosmetic quality

Our customized 3C product injection moulds are developed strictly according to customer 3D data and production requirements, covering mold design, machining, assembly, and trial validation.

Application Areas

This plastic injection mould solution is commonly used for:

• Electronic component housings

• Connector plastic parts

• Sensor covers and structural supports

• Special-shaped plastic components

• 3C customized structural parts

• Precision consumer electronic enclosures

These applications typically involve compact structures, complex geometry, and tight tolerances.

Key Engineering Focus

Injection moulds for electronic components and special-shaped parts present unique engineering challenges.

1) Complex Geometry & Special Shaped Part Design

Irregular shapes often include:

• Thin ribs and internal undercuts

• Snap-fit or locking structures

• Small internal cavities

• Multi-directional draft requirements

Mold design must ensure:

• Proper parting line strategy

• Controlled ejection system

• Accurate shut-off structure

• Balanced filling to prevent short shots

Complex geometry increases the importance of structural validation during mold design.

2) Material Compatibility (ABS / TPU / TPR)

Different 3C products require different material characteristics:

• ABS for rigid electronic housings

• TPU for flexible protective parts

• TPR for soft-touch components

Runner layout, gate position, and cooling system are optimized according to material shrinkage and flow behavior.

3) Dimensional Precision & Assembly Stability

Electronic components must integrate precisely with metal parts or PCBs.

• Shrinkage compensation is built into the mold design

• Tolerance control for mating features

• Stable mold alignment system

• Controlled warpage through cooling design

Dimensional stability ensures consistent assembly performance.

4) Surface Quality & Appearance Control

Many 3C parts are visible or semi-visible components.

• Controlled gate placement to reduce weld lines

• Optimized cavity polishing or texture finishing

• Flash prevention through precision fitting

• Balanced injection pressure distribution

Surface consistency directly affects product perception.

Mold Specifications

• Product Type: Plastic Injection Mould for 3C & Electronic Components

• Product Materials: ABS / TPU / TPR / customized plastics

• Gate Type: Side gate / Sub gate / Pin point gate / Fan gate / Direct gate

• Runner System: Hot runner or Cold runner

• Mold Steel: 1.2343 ESR / NAK80 / S136 or equivalent

• Mold Base: LKM / HASCO / DME / FUTABA

• Mold Life: Up to 1,000,000 cycles

• Supported Drawing Formats: STP / STEP / IGS / PRT / X_T

• MOQ: 1 Set

Manufacturing Capabilities

We manufacture single-cavity and multi-cavity molds according to project requirements.

• Maximum mold size: 2500 × 2000 × 1500 mm

• Machining precision: ±0.005 mm

• Injection precision: ±0.03 mm

• Lead time: 25–45 days, depending on complexity

In-house precision equipment includes:

• CNC machining centers

• EDM and mirror EDM

• Wire cutting machines

• Coordinate Measuring Machine (CMM)

Each mold undergoes dimensional inspection and trial molding before shipment.

Project Development Process

1. 3D data review and DFM analysis

2. Mold structure design confirmation

3. Precision machining and EDM processing

4. Mold assembly and fitting

5. Trial molding and structural validation

6. Optimization and final approval

This process helps reduce risk when producing special-shaped parts.

Why Choose SENLAN

• Experience in precision molds for electronic components

• Capability to handle complex and irregular plastic parts

• Stable machining accuracy and structured quality control

• Support for customized 3C product mold development

• Efficient manufacturing with controlled lead time

• One-year after-sales technical support

Our focus is on delivering reliable tooling solutions for electronic and 3C applications.

Technical FAQ

Q1: Can you handle complex special shaped plastic parts?
Yes. Mold structure is optimized for undercuts, thin walls, and complex geometry.

Q2: Is multi-cavity mold design supported?
Yes. Single or multi-cavity configurations can be developed based on production volume.

Q3: How is dimensional accuracy controlled?
Through precision machining (±0.005 mm), stable mold alignment, and trial molding verification.

Q4: Can you support flexible materials like TPU or TPR?
Yes. Mold design and runner layout are adjusted according to material characteristics.

Q5: Do you provide injection molding production after mold completion?
Yes. Production service can be arranged depending on customer requirements.

Request a Quotation

To receive a quotation for a Plastic Injection Mould for Electronic Components or Special Shaped Parts, please provide:

• 3D product files

• Material specification

• Surface finish requirements

• Estimated production volume

• Target lead time

Our engineering team will review your data and provide a detailed mold proposal.