Precision Electrical & Electronic Components Molding Solutions
From fine multi-pin connector housings and flame-retardant terminal blocks to metal insert-molded components and electrical enclosures, ARLEX tailors injection unit sizing, screw design, and automation cells to meet your critical tolerances and engineering resin requirements.
Request Precision Machine RecommendationPrecision Sizing Beyond Tonnage Alone
Matching screw diameter to small shot sizes prevents excessive resin residence time and degradation.
Optimized screw profiles for glass-fiber reinforcement, V-0 flame retardants, and high-flow polymers.
Integrated low-pressure mold protection, precise insert positioning, and robot loading automation.
Stable injection rate and repeatable V/P switchover across high cavity counts.
Electrical Component Applications
Connectors & Plugs
Terminal housings, wire connectors, multi-pin bodies, sockets, sensor plugs.
- Fills thin walls and deep terminal slots without flash or thermal degradation.
- Matches total multi-cavity shot weight with appropriate barrel capacity.
Terminal Blocks & Insert Molding
Insert-molded contacts, terminal carriers, relay bases, busbars.
- Prevents metal insert displacement during high-pressure filling.
- Advanced mold protection guards sensitive tool features against misloaded inserts.
Electrical Housings & Enclosures
Junction boxes, power supply covers, adapter bodies, circuit breaker cases.
- Focuses on projected area, platen tie-bar clearance, and dimensional stability.
- Ensures precise alignment for clip-fits, screw bosses, and mating surfaces.
Sensors & Technical Components
Bobbins, coil carriers, sensor housings, internal technical supports.
- High repeatability for critical tolerances and tight assembly interfaces.
- Handles engineering thermoplastics (PA66, PBT, POM, PC/ABS, LCP).
Engineering Sizing Warning: Avoid Oversized Injection Units
Selecting an oversized injection unit simply to get "extra machine capacity" is a frequent mistake in electrical parts molding. If a small shot uses only a fraction of the barrel, material stays heated over too many cycles, leading to thermal degradation, color shifting, or lost mechanical properties.
ARLEX Electrical Machine Selection Flowchart
Discuss Your Electrical Component Project
Send us your component drawings, exact resin grade, filler percentage, cavity count, and insert requirements for a tailored engineering proposal.