IMH supports plastic injection molds from initial design and build through repair and maintenance. We work on tools with hot runners, slides, lifters, unscrewing mechanisms, and complex collapsible cores to keep production parts running smoothly. Whether it’s a single cavity MUD unit tool or complex multi-cavity production tools, our team has the experience to handle your project. Services include new component manufacturing, replacement details, and shut-off repairs so molds stay in service longer.

As with metal stamping dies, plastic injection molds are a popular and effective manufacturing tool. IMH provides full-service plastic injection mold support from design through ongoing maintenance and repair.

Mold Design & Manufacturing

IMH designs and builds plastic injection molds from initial concept through final production. Our team works directly from your part CAD files or prints to develop molds appropriate for your application. We utilize CAD/CAM software to create detailed mold designs and generate CNC programs for efficient manufacturing.

We build molds ranging from simple prototype single-cavity tools through complex multi-cavity production molds. Our experience includes:

  • Single cavity and multi-cavity molds
  • Hot runner systems
  • Slides and lifters for undercut features
  • Unscrewing mechanisms for threaded parts
  • Collapsible cores for internal undercuts
  • Family molds producing multiple part numbers

Mold Manufacturing Capabilities

IMH manufactures injection molds using precision CNC machining, wire EDM, and traditional toolmaking techniques. Our capabilities include:

  • CNC machining centers for mold bases, cavities, and cores
  • Wire EDM for intricate cavity details and tight clearances
  • CNC turning for cylindrical components
  • Surface grinding for precise mating surfaces
  • Polishing and finishing services
  • Heat treatment coordination
  • Assembly and tryout capabilities

We manufacture mold components using appropriate tool steels selected based on production volume and application requirements. Our complete in-house capabilities mean faster turnaround and better quality control throughout the build process.

Hot Runner Systems

For molds requiring hot runners, IMH works with hot runner systems to keep plastic in the runner system molten between cycles. Hot runners eliminate runner waste and can reduce cycle time. We design and integrate hot runner systems including manifolds, nozzles, and temperature control appropriate for your application.

Slides and Lifters

Parts with undercuts or features perpendicular to the mold opening direction require slide mechanisms and lifter systems. IMH designs and builds these mechanisms to handle undercut features reliably. Our slides provide proper actuation and locking to ensure consistent operation throughout the mold’s production life.

Unscrewing Mechanisms

For parts with internal or external threads, we design and build unscrewing mechanisms using electric or hydraulic motors. Unscrewing molds produce threaded parts without requiring secondary operations, eliminating additional costs and handling.

Collapsible Cores

Parts with internal undercuts require collapsible or retractable cores. IMH designs these mechanisms to retract reliably without damaging molded parts. We build collapsible core systems appropriate for your part geometry and production requirements.

Mold Repair & Maintenance

IMH provides comprehensive mold repair services to keep your production running. Whether you’re experiencing part quality issues, mold damage, or normal wear, our toolmakers diagnose problems and implement solutions.

Component Replacement
Manufacturing replacement mold components is an everyday occurrence at IMH. We rebuild worn or damaged cores, cavities, slides, lifters, and other components. Whether working from original CAD files, prints, or reverse engineering damaged parts, we manufacture replacements that restore your mold to optimal operating condition.

Shut-Off Repairs
Shut-off surfaces where mold halves meet are critical for part quality. Flash at parting lines often indicates shut-off problems. We repair worn shut-offs through surface grinding, welding and refinishing, or manufacturing replacement components. Our repairs restore proper metal-to-metal contact and eliminate flash issues.

Core and Cavity Repair
Damaged or worn core and cavity surfaces affect part quality and dimensions. IMH repairs these critical surfaces through welding, machining, and refinishing. For severe damage, we manufacture complete replacement cores or cavity inserts.

Slide and Lifter Rebuild
Slides and lifters wear over time due to friction and contamination. We rebuild these mechanisms by replacing wear plates and actuating components, restoring smooth operation and eliminating part damage from binding or misalignment.

Hot Runner Service
Hot runner problems can shut down production quickly. IMH services hot runner systems including manifold repairs, nozzle replacement, and heater replacement. We work to get hot runner systems back into operation efficiently.

Reverse Engineering

When mold documentation is incomplete or unavailable, IMH specializes in reverse engineering injection mold components. We carefully measure and document existing tooling, then manufacture exact replacements. Our reverse engineering services are valuable for maintaining molds when prints are missing or for updating old tooling.

Preventive Maintenance

Regular mold maintenance prevents unplanned downtime and extends mold life. IMH provides scheduled maintenance services including:

  • Complete mold cleaning and inspection
  • Ejector pin replacement and refurbishment
  • Slide and lifter lubrication and adjustment
  • O-ring and seal replacement
  • Spring replacement
  • Gate area cleaning and polishing
  • Cooling line flushing
  • Shut-off surface inspection and minor repairs
  • Documentation of mold condition and recommendations

Industries We Serve

IMH manufactures and maintains injection molds for diverse industries including:

Automotive
Interior trim components, under-hood parts, electrical connectors, and other automotive applications requiring high-volume production and consistent quality.

Medical Devices
Diagnostic equipment housings, surgical instrument components, and device assemblies meeting strict quality requirements.

Consumer Products
Appliance components, power tool housings, toys, sporting goods, and other consumer items requiring cosmetic appearance and reliable performance.

Electronics
Enclosures, connectors, cable assemblies, and internal components for consumer electronics and industrial controls.

Industrial
Fluid handling components, pneumatic fittings, electrical enclosures, and equipment housings for manufacturing and automation.

Quality Standards

Every injection mold IMH manufactures undergoes quality inspection including dimensional verification, surface finish verification, and proper shut-off verification between mating components. We test slide and lifter operation and verify cooling systems before delivery.

Our ISO 9001:2015 certification ensures consistent processes and continuous improvement throughout every project.

Why Choose IMH

Complete In-House Capabilities
From design through manufacturing, repair, and maintenance, everything happens at IMH. This integration eliminates coordination delays and ensures quality control at every step.

Experienced Mold Makers
Our toolmakers combine traditional moldmaking skills with modern CNC and wire EDM technology. This blend delivers molds that perform reliably throughout their production life.

Responsive Service
Whether you need a new mold or emergency repair of production tooling, IMH responds quickly. Our complete capabilities allow us to move projects efficiently.

Getting Started

Ready to discuss your injection mold project? Contact IMH with:

  • Part CAD files or sample parts
  • Material specification
  • Annual volume requirements
  • Quality requirements
  • Existing mold documentation (if repair/modification)

Our team will review your application and provide a detailed quote including timeline and recommendations. Whether you need prototype tooling, production molds, or support for existing tools, IMH delivers the expertise your project demands.

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