The Process Behind the Precision

Tehnoplast has built its manufacturing infrastructure and engineering expertise incrementally over decades — expanding capacity, developing new departments and production lines, and introducing automation at each stage of growth. That steady progression has led to partnerships with major international brands and an active presence in markets worldwide.

Our toolroom operates a full spectrum of precision CNC machining, EDM wire and sink cutting, polishing, and laser welding — functioning as an integrated production facility. Each stage is managed by engineers who maintain direct oversight of the tooling workflow and provide technical guidance to machine operators throughout production.

Electrical Discharge Machining

Certain mold features cannot be reached by a rotating cutting tool. Sharp internal corners, deep narrow slots, intricate cavity textures, hardened steel sections that would destroy conventional tooling — these are the conditions where EDM becomes essential.

Our sinker EDM removes material through controlled electrical discharge, allowing us to erode geometry directly into hardened steel with a surface finish and dimensional accuracy.

Wire EDM extends into precise profile cutting — slicing through hardened tool steel along any programmed path. For punches, inserts, slides, and split-line geometry, wire cutting delivers edge sharpness and dimensional accuracy that feeds directly into mold fit and function.

Capabilities:

• Sinker EDM for cavity and core detail
• Wire EDM for profile and insert cutting
• Hardened steel processing
• Fine surface finish without secondary operations

Integration of design and efficiency

Injection mold tooling involves dozens of interdependent decisions — steel grade, machining sequence, heat-treatment timing, cavity finish, parting-line geometry.

Our design team works with one simple principle: a well-designed product has to perform on every level. That means aesthetic appeal and functional efficiency are developed together. Proportions, surface finishing, and visual coherence are considered alongside material selection, structural performance, and production cost.

Every design that leaves our team is expected to meet the same set of criteria — useful, durable, cost-effective to manufacture, and built with long-term sustainability in mind.

Capabilities:

• Integrated design and tooling engineering
• Steel grade selection and machining sequence planning
• Heat-treatment and cavity finish specification
• Parting-line and mold geometry design
• Combined aesthetic and functional product design
• Material selection for structural and cost performance
• Design optimized for manufacturability and sustainability

Measurement Runs Parallel to Machining

Dimensional verification is built into the machining sequence so critical features are measured in-process, at defined stages, before the next operation begins. Deviations are identified and corrected while the workpiece is still in setup, which is an important, cost and time-saving step.

When the finished tool does enter first-article production, the pilot part is subjected to full dimensional inspection and functional assessment. Cavity fill, surface quality, dimensional conformance to part drawing, and ejection behavior are all evaluated before the mold is released for serial production.

If the result doesn't meet the specification, the tool goes back for adjustments, usually by laser welding, until all control boxes are checked.

Capabilities:

• In-process dimensional verification
• CMM measurement
• First-article inspection protocol
• Surface finish assessment
• Pre-production functional validation

Fine Detailing

Once machining and quality control are complete, molds are handed to our toolmakers for final assembly and detail work. As tolerances are measured in hundredths of a millimeter, manual adjustment is necessary to turn machined components into a fully functional tool. A shower press is used during this stage to clean tool surfaces and ensure all components seat correctly within the assembled tool set.

Finished molds are polished to specification and stored under controlled conditions, ready for production deployment.

Capabilities:

• Manual tolerance adjustment at hundredths of millimeter precision
• Full mold assembly and component fitting
• Shower press surface cleaning and component seating
• Final polish to surface specification
• Controlled mold storage and production-ready preparatiom

Our in-house laboratory validates every enclosure before serial production begin

Enclosures produced at Tehnoplast undergo laboratory testing and approval before serial production is authorized. Our in-house testing facility runs a controlled sequence of assessments in which operatives replicate the environmental conditions and mechanical stresses the product will face in its intended application.

The testing protocol covers water pressure resistance, leakage integrity, dust ingress protection, impact resistance, and hot wire testing. No enclosure enters the production line without passing this full sequence.

Test results determine the applicable certification markings for each product. The markings are listed in the technical specifications included with each enclosure. These provide a clear, verified reference for proper installation and confirm the enclosure is suitable for its intended use.

Before being placed on the market, our enclosures undergo official EU quality testing and certification.

Capabilities:

• In-house testing laboratory
• Water pressure and leakage resistance testing
• Dust ingress protection assessment
• Impact resistance testing
• Hot wire testing
• Compliance-based certification marking
• Published technical specifications per product

When ideas come to life

Based on product specifications, we source and process high-grade granulates for their performance, stability, and long-term durability under operating conditions.

Once the molded products are produced, our operators conduct quality checks and refine any rough edges.

The products are then organized according to their intended use; some are prepared for immediate packing, while others await the gasketing and completion of the assembly process.

Capabilities:

• High-grade granulate processing
• Multi-material specification compatibility
• Dimensional stability and long-term durability assurance
• Integrated quality control throughout serial production

Structured line operations delivering tens of thousands units per day

Finished enclosure components are transferred directly to the assembly facility following production, with each part batch pre-sorted and vacuum-sealed where required to maintain component integrity.

Assembly operations are structured around operator stations, each responsible for a defined stage in the sequence. The process covers instruction sheet insertion, DIN rail and mounting plate fitting, terminal installation where specified, and final door mounting. Completed units are labeled according to product specification and packed into cardboard boxes for dispatch.

Packaging is made from recycled cardboard with minimal print coverage, reflecting our approach to minimizing waste across the production chain without compromising protection or presentation standards.

Capabilities:

• Pre-sorted and vacuum-sealed component handling
• Dedicated operator station assembly sequence
• DIN rail and mounting plate installation
• Terminal fitting to product specification
• Instruction sheet and labeling per unit
• Recycled packaging with reduced print waste