EXTRUTEX Mold Temperature Controller Series
Precision PID Temperature Control for Injection Moulds

Introduction to the EXTRUTEX Mold Temperature Controller

In injection moulding, the temperature of the mould is one of the most critical process variables. Too low a temperature can cause incomplete filling, surface defects, or longer cooling times. Too high a temperature can lead to warpage, extended cycle times, or degradation of the polymer. The EXTRUTEX Mold Temperature Controller series was developed to give processors precise, reliable control over mould temperature so that every shot is produced under optimal thermal conditions.

Rooted in Austrian engineering principles that prioritise accuracy, safety, and ease of use, the machines are manufactured in modern facilities in Nanjing and Shanghai, China. This combination delivers European-level performance at a competitive global price point. The range covers maximum temperatures from 95 °C (water) up to 300 °C (oil), heating powers from 6 kW to 24 kW, and both single- and dual-zone configurations, making it suitable for a wide variety of moulds and materials.

Every EXTRUTEX MTC is built around a PID microcomputer controller that continuously compares the actual fluid temperature with the set point and adjusts heating or cooling accordingly. Overload protection on the pump, low-level alarms, phase-reverse protection, and multi-fault indicator lamps work together to keep the system safe and to help operators diagnose issues quickly. The heating barrel is fabricated from stainless steel for long life and easy cleaning, and an optional air-blowing function can be used to clear residual moisture or debris from the mould channels.

Whether you are running high-volume packaging moulds, technical automotive parts, or precision medical components, an EXTRUTEX Mold Temperature Controller provides the thermal stability needed for consistent quality and efficient production.

Performance Characteristics

Eight core performance features define the EXTRUTEX Mold Temperature Controller range. Each has been engineered to solve real production challenges.

PID control is the heart of accurate temperature management. Unlike simple on/off thermostats, a PID algorithm continuously calculates the difference between the set point and the measured temperature and adjusts the heating power (and cooling if required) in a proportional, integral, and derivative manner. The result is minimal overshoot and very stable temperature, which is essential for tight-tolerance moulding and for materials that are sensitive to thermal history.

Pump overload protection is particularly important when circulating oil at elevated temperatures or when the system encounters restrictions in the mould channels. By limiting current, the protection circuit prevents motor burnout and reduces the frequency of pump replacement. The low liquid level alarm adds another layer of safety: if the circulating medium drops below a safe threshold, the system alerts the operator before the heater or pump can be damaged.

Electrical safety is addressed through a CE-compliant main power switch and phase-reverse protection. Incorrect phase sequence can cause the pump to run backwards or create other hazards; the reverse-phase detection circuit prevents the machine from starting under these conditions. Multi-fault indicator lamps further simplify troubleshooting by showing at a glance whether the problem is related to temperature, level, phase, overload, or another monitored parameter.

The stainless-steel heating barrel resists corrosion from water treatment chemicals and from thermal oil, and its smooth surface is easy to clean during routine maintenance or when changing media. The optional air-blowing function is a practical feature for processors who need to dry mould channels after water circulation or remove residual particles before a colour or material change.

Working Principle and System Integration

The EXTRUTEX Mold Temperature Controller circulates a heat-transfer medium (water or oil) through the channels of the injection mould. A circulating pump draws the medium from the tank, passes it through the heating elements (and cooling exchanger if required), and delivers it to the mould. Return fluid comes back to the tank, completing the loop.

Temperature is measured by a sensor in the fluid circuit. The PID controller compares this value with the operator-set target and modulates the heater power (and cooling valve if present) to maintain the set point. In water models the maximum temperature is typically 95 °C; in oil models it can reach 160 °C or 300 °C depending on the series.

Cooling is achieved either by direct injection of cooling water into the circuit (direct cooling) or by means of a heat exchanger (indirect cooling). Direct cooling is simple and effective for lower temperatures; indirect cooling keeps the process medium separate from the plant cooling water and is preferred for higher temperatures or when contamination of the process fluid must be avoided.

Dual-zone models (suffix -2D) contain two independent temperature-control circuits, allowing the fixed and moving halves of the mould (or two different moulds) to be controlled at different temperatures. This is especially useful for complex moulds or for sequential valve-gate applications where thermal balance is critical.

The unit is typically connected to the mould with flexible hoses terminated in standard mould couplings (3/8″, 3/4″, etc.). Cooling-water inlet and outlet ports are provided for the heat-exchange or direct-cooling function, and a drain port allows the system to be emptied for maintenance or media change.

Typical Applications

EXTRUTEX Mold Temperature Controllers are used across the full spectrum of injection moulding and related processes:

• Commodity packaging – High-volume thin-wall containers, caps, and closures that require fast, stable cooling.
• Automotive components – Technical parts with tight dimensional tolerances and surface-finish requirements.
• Medical & healthcare – Precision components where thermal consistency directly affects biocompatibility and dimensional accuracy.
• Consumer electronics – Housings and connectors that demand excellent surface quality and low warpage.
• Engineering plastics – Materials such as PA, PBT, POM, and high-temperature resins that need elevated mould temperatures for proper crystallisation and residual-stress control.
• Multi-cavity and family moulds – Dual-zone units help balance temperature between different cavities or mould halves.

In all of these applications the combination of accurate PID control, robust safety features, and reliable circulation delivers measurable improvements in part quality, cycle-time consistency, and mould longevity.

Main Components and Construction Features

A typical EXTRUTEX Mold Temperature Controller includes:

• PID microcomputer controller – Operator interface with set-point entry, temperature display, and alarm status.
• Heating elements – Immersion heaters sized according to the model’s power rating (6–24 kW).
• Circulating pump – High-temperature capable pump with overload protection.
• Stainless-steel heating barrel / tank – Corrosion-resistant vessel for the process medium.
• Cooling circuit – Direct or indirect cooling arrangement with water inlet/outlet ports.
• Level sensor and low-level alarm – Protects against dry running.
• Phase-reverse and main-power isolation – Electrical safety features.
• Multi-fault indicator lamps – Visual diagnostics for rapid troubleshooting.
• Mould connection ports – Standard threaded or quick-coupling connections sized to the model.
• Optional air-blowing circuit – For mould channel cleaning.
• Mobile frame with casters – Easy positioning next to the injection machine.

All product-contact surfaces in the heating circuit are designed for durability and cleanability. Electrical components are housed in a protected enclosure, and the overall construction is intended for continuous industrial duty in a moulding environment.

Technical Specifications

The table below summarises the standard EXTRUTEX Mold Temperature Controller range. Custom powers, dual-zone configurations, and special media options are available on request.

Why Choose EXTRUTEX – Austria Design, China Manufacturing

EXTRUTEX brings together Austrian design discipline—focused on precision temperature control, operator safety, and long-term reliability—with efficient manufacturing in Nanjing and Shanghai. The result is a range of mold temperature controllers that perform at a European technical standard while remaining competitively priced for global moulders.

Key advantages include:

• Accurate PID control – Stable temperatures that improve part quality and reduce scrap.
• Comprehensive safety package – Overload, low-level, phase-reverse, and multi-fault indication protect both equipment and operators.
• Durable construction – Stainless-steel heating barrels and robust pumps for continuous industrial duty.
• Application flexibility – Water and oil models, single- and dual-zone versions, and a wide power range cover most moulding needs.
• Easy maintenance – Cleanable stainless-steel tanks and clear diagnostic indicators minimise downtime.

Every unit is functionally tested before shipment, including verification of temperature control accuracy, pump performance, and safety interlocks.

Installation, Operation and Maintenance

Installation is straightforward. The controller is positioned next to the injection machine on its casters. Flexible hoses connect the supply and return ports to the mould channels. Plant cooling water is connected to the cooling inlet and outlet. Electrical supply is connected according to the nameplate, taking care to observe correct phase sequence (the phase-reverse protection will prevent start-up if the sequence is wrong).

Typical start-up sequence:

1. Fill the tank with the appropriate medium (clean water or thermal oil as specified).
2. Open the mould isolation valves and check for leaks.
3. Switch on the main power and set the desired temperature on the PID controller.
4. Start the circulating pump and allow the system to reach the set point.
5. Once temperature is stable, begin moulding production.

Routine maintenance includes periodic checking of fluid level and condition, cleaning of the stainless-steel tank when changing media, inspection of hoses and couplings, and verification that all alarm functions operate correctly. Pump seals and heating elements should be inspected according to the maintenance schedule in the manual.

Safety Features in Detail

Operator and equipment safety are engineered into every EXTRUTEX Mold Temperature Controller:

• PID control with over-temperature protection.
• Pump overload protection.
• Low liquid level alarm and interlock.
• CE-compliant main power isolation switch.
• Phase-reverse detection and protection.
• Multi-fault indicator lamps for rapid diagnosis.
• Stainless-steel construction that resists corrosion and is easy to clean.

These features help maintain both process reliability and a safe working environment around the moulding cell.

Customization and Options

While the standard range covers most requirements, EXTRUTEX can supply:

• Dual-zone configurations for independent control of fixed and moving mould halves.
• Higher-temperature oil units (up to 300 °C).
• Special flow rates or connection sizes.
• Air-blowing circuits for mould cleaning.
• Communication interfaces for integration with machine or plant control systems.
• Custom colours or branding for OEM partnerships.

Customers are encouraged to provide details of mould size, required temperature range, medium preference (water or oil), and any special process needs so that the optimal model can be recommended.

Quality Assurance

EXTRUTEX manufacturing facilities operate under rigorous quality-management systems. Critical components are inspected, electrical assemblies are tested, and every finished controller undergoes a functional run-test that includes temperature control accuracy, pump performance, and verification of all safety interlocks and alarms. CE documentation is prepared as standard.

Total Cost of Ownership Advantages

Beyond the purchase price, the EXTRUTEX Mold Temperature Controller delivers ongoing economic benefits:

• Improved part quality – Stable mould temperature reduces scrap and rework.
• Shorter, more consistent cycle times – Faster return to production after start-up or mould change.
• Extended mould life – Controlled temperature and optional air-blowing reduce thermal stress and contamination.
• Lower maintenance – Overload protection and robust construction reduce pump and heater failures.
• Energy efficiency – Accurate PID control avoids unnecessary overheating.

When evaluated over several years of continuous production, these factors make a high-quality mould temperature controller a highly cost-effective investment.

Conclusion – Precise, Safe, Reliable Mould Temperature Control

The EXTRUTEX Mold Temperature Controller series provides injection moulders with accurate PID temperature regulation, comprehensive safety protection, and durable construction. From compact water units for general-purpose moulding to high-temperature oil controllers for engineering resins, every model is designed to Austrian standards and manufactured with care in Nanjing and Shanghai.

Whether you need a single-zone unit for a standard mould or a dual-zone system for complex multi-cavity tools, EXTRUTEX can supply a solution that delivers stable temperatures, protects your equipment, and supports consistent part quality.

Contact the EXTRUTEX team with your mould requirements, temperature range, and process details. Our engineers will recommend the most suitable model and options so that you can start benefiting from precise mould temperature control as quickly as possible.