Comprehensive Service for Injection Molding Machines & Plastics Equipment

DPSS provides specialized repair, maintenance, and upgrade services for injection molding machines and auxiliary plastics equipment ranging in size from 30-4000 tons. With extensive electrical and hydraulic troubleshooting expertise and OEM-level experience, we support manufacturers across North America with reliable, technically sound service.

Our services are designed to reduce downtime, extend equipment life, and support in-house maintenance teams with practical expertise.DPSS provides specialized repair, maintenance, and upgrade services for injection molding machines and auxiliary plastics equipment ranging in size from 30-4000 tons. With extensive electrical and hydraulic troubleshooting expertise and OEM-level experience, we support manufacturers across North America with reliable, technically sound service.

Our Services

Industrial control panel with screen displaying settings, surrounded by pipes, wiring, and tools in an industrial environment.

Injection Molding Machine Repair

DPSS delivers expert troubleshooting and repair for injection molding machines, addressing complex electrical, hydraulic, and control system issues.

Our services include:

  • Electrical troubleshooting and repair 

  • Hydraulic system troubleshooting and repair

  • Mechanical troubleshooting and repair 

  • Screw and barrel diagnostics and replacement

  • Root cause failure analysis

We focus on identifying the underlying cause of issues — not simply replacing parts — to help prevent repeat failures and unnecessary downtime.

Industrial machinery with a large black cylindrical component, various pipes, wires, and control panels in a factory setting.

Preventative Maintenance Programs

Regular preventative maintenance is essential for maintaining performance and protecting high-value capital equipment. 

DPSS offers:

  • Scheduled preventative maintenance services

  • Annual, quarterly, and customized PM programs

  • Electrical and hydraulic system inspections

  • Support for quality and production compliance requirements

  • Maintenance planning assistance

We work alongside your internal maintenance team to strengthen existing programs or supplement limited resources.

Industrial machine with a control panel in a warehouse setting, surrounded by shelves and miscellaneous equipment.

Retrofits & Equipment Upgrades

Modernizing injection molding equipment can significantly improve reliability, efficiency, and long-term viability.

DPSS provides:

  • Controller retrofits

  • Servo pump retrofits

  • Electrical system upgrades

  • Screw and barrel diagnostics and replacement

  • Support for legacy and out-of-support equipment

Upgrading aging equipment allows manufacturers to extend the life of their machines without the cost of full replacement.

Industrial machine with yellow and green parts, various pipes and cables connected, situated in a warehouse or factory setting.

Auxiliary Equipment Service

In addition to injection molding machines, DPSS services a wide range of plastics processing support equipment critical to maintaining stable production, including:

  • Robots and part removal systems

  • Dryers

  • Loaders and material handling systems

  • Grinders

  • Industrial chillers

  • Thermolators

Because these systems are electrically and hydraulically integrated into the overall production environment, we evaluate connected equipment to ensure reliable, coordinated operation across your facility.

A person working on an electronic device with a multimeter, screwdriver, and other tools on a workbench.

Training & Technical Support 

DPSS offers on-site training and technical support for plant maintenance personnel, including:

  • Electrical and hydraulic troubleshooting techniques

  • Reading and interpreting machine prints

  • Preventative maintenance best practices

  • System diagnostics guidance

Our goal is to strengthen your internal capabilities while providing dependable technical backup when needed.

Exterior view of the Engel building with landscaped garden in the foreground and a parking lot to the side.

Engel & Multi-Brand Equipment Specialists

DPSS has extensive experience servicing Engel injection molding machines, including legacy models and equipment that may no longer be supported by the original manufacturer. Our familiarity with Engel controls, electrical systems, and hydraulic architecture allows us to diagnose issues efficiently and support long-term equipment reliability.

In addition to Engel machines, we provide service and technical support for a wide range of major injection molding manufacturers, including HPM, Van Dorn, JSW, Haitian, and Krauss Maffei. We support both current-production and legacy equipment across these platforms.

We understand the importance of protecting long-term capital investments and maintaining equipment that remains critical to production.

Request Service

If you need expert support for your injection molding equipment, contact DPSS to schedule service or discuss your facility’s needs.