Lenasia: CNC Toolmaker Lenasia

About the Role

The CNC Toolmaker is responsible for diagnosing, repairing, modifying, and maintaining all moulds and tooling, as well as designing and manufacturing new tools when required. The role also supports the Toolroom Head of Department by assisting with planning, staff coordination, workflow management, and improving overall toolroom efficiency.

Key Responsibilities

• CNC Machining Programming, setting up and operating CNC machines
• Proper cutter selection for specific machining applications
• Minimise CNC machine idle time
• Cutting tool management and ensuring availability of correct cutters at all times
• Tooling and Mould Manufacturing: Manufacture, design, maintain and modify existing moulds; Manufacture and develop new tools as required
• Provide support during mould start-up to ensure: Correct operation Product quality compliance QC approval before release
• Mould Inspections During Production Including but not limited to: Cleaning shut-off faces Checking wear pad screws and shims Inspecting stripper plate screws Inspecting tamper slides, handle hole slides and all moving components Inspecting ejector couplings Checking nozzle-to-sprue bush contact for leaks Verifying mould temperature controller operation and settings Greasing wear pads, guide pins and moving parts Updating date stamps
• Tool Maintenance Between Production Runs: Complete stripping of moulds Cleaning of all components and plates Replacement of: O-rings Cap screws Springs Inspection of: Hot runners (leaks, loose tips, etc.) Shut-off faces Wear pads and shims Repairing damaged plates or components Repairing or replacing broken mould parts Testing: Air valves Core tip air Support air systems Lubrication of all moving components Correct mould assembly Functional testing of: Water circuits Air circuits Hot runners Basic mould functions
• Breakdown and Production Support: Respond promptly to machine stoppages including: Heater faults Water leaks Loose or broken screws Flashing Venting issues Ejector problems Off-centre moulding
• Product Quality Support: Assist in resolving quality issues such as: Burn marks Flashing Water marks Poor surface finish Uneven filling Off-centre products Failed functional tests (drop tests, lid fitment, handle suspension, etc.)
• Toolroom Operations: Organise raw materials, tooling and cutter requirements Program and operate conventional machines including: Lathes Milling machines Surface grinders Spark eroders Drill presses Bench grinders Maintain housekeeping standards in the toolroom Monthly machine cleaning and routine inspections
• Technical & Management Support: Provide expertise on product and mould development Repair and maintain toolroom machines Assist with work planning and job prioritisation Meet departmental KPIs and objectives Liaise with sales and quality departments on customer complaints Conduct root cause analysis on: Product defects Performance failures Customer complaints Implement and maintain the Toolroom Mandate Ensure moulds and products remain within specification after repairs or modifications
• Identify and address safety concerns Conduct visual spot checks on manufactured products Complete all reports as required by management Perform proper shift handovers Train and mentor staff Assist other departments when required Maintain strict health and safety compliance

Requirements

• 3 years experience in a similar role
• 3 years experience in plastic injection moulding
• CNC programming (Edgecam essential)
• CNC setup and operation
• 2D and/or 3D CAD design
• Strong mechanical aptitude
• Excellent planning and prioritisation skills
• Strong communication (verbal and written)
• Analytical thinking and sound judgement
• Basic mathematical skills
• High attention to detail
• Strong time management Ability to work independently and in teams
• Health and Safety knowledge

Qualifications

• Minimum 3 years experience in plastic injection moulding
• No restraint of trade