High Temperature Oil Heater Selection Guide 2026: ZL-OH Series 300°C Thermal Oil Heating System for Plastic Molding When plastic processing operations require mold surface temperatures above 120°C — as is common in the production of engineering plastics, optical components, aerospace composites, and certain packaging films — water-based mold temperature control is no longer sufficient. At temperatures above the boiling point of water, water-type mold temperature controllers (MTCs) cannot maintain stable temperature control without requiring pressure containment that introduces significant complexity, cost, and safety considerations. High temperature oil heaters — also known as thermal oil heating systems, oil-type MTCs, or导热油加热模温机 in Chinese manufacturing contexts — are the standard solution for mold temperature control applications requiring surface temperatures from 150°C up to 350°C. By using a thermal oil (also called heat transfer fluid or导热油) as the heating medium rather than water, these systems can achieve stable, precise, and safe temperature control at temperatures far above water's boiling point, without requiring pressurized systems at the mold side. ZILLION's ZL-OH series of high temperature oil heaters — which include both oil-type mold temperature controllers (operating to 180°C) and high temperature oil heating systems (operating to 300°C) — cover the full range of high-temperature mold heating requirements for plastic processing applications. This guide explains how thermal oil heating systems work, where they are used, how to size and select the right system, and how to operate and maintain them safely. How Thermal Oil Heating Systems Work Thermal oil heating systems operate on a closed-loop principle that is fundamentally different from water-based heating systems: Fluid heating: Thermal oil is heated in a pressure-free heater vessel by an electric immersion heater. Because the system operates at atmospheric pressure (or slightly above), there is no risk of steam formation or explosive pressure buildup even at temperatures approaching 350°C. Circulation: A magnetically coupled centrifugal pump (or in some designs, a positive displacement pump) circulates the heated thermal oil from the heater vessel through insulated piping to the mold cooling/heating channels. Heat transfer: The hot thermal oil transfers heat to the mold through the mold channel walls. As it cools, the oil returns to the heater vessel through the return piping. Temperature control: A PID controller monitors the oil temperature using a PT100 sensor in the heater vessel (or in the mold return line) and modulates the electric heater power to maintain the setpoint temperature precisely. Cooling: When the mold temperature exceeds the setpoint (for example, due to exothermic reaction heat from the plasticizing process), a solenoid valve opens to allow a small amount of cooling water to flow through a he...

Plastic Doser and Color Mixer Selection Guide 2026: Volumetric vs Gravimetric Dosing Systems for Injection Molding and Extrusion Precise material feeding and consistent color blending are among the most consequential operational variables in any plastic processing operation. Whether you are running an injection molding line producing consumer packaging, an extrusion line manufacturing profile or film products, or a blow molding operation for containers, the accuracy of your additive and color dosing system directly determines product quality consistency, raw material waste levels, and ultimately your cost per kilogram of finished product. This guide provides a systematic framework for selecting the right plastic doser and color mixer for your specific production requirements. It covers the two principal dosing technologies — volumetric and gravimetric — their respective advantages and limitations, the key selection criteria that matter in practice, and how to size and specify equipment for your particular application. What Is a Plastic Doser and Why Does It Matter? A plastic doser (also referred to as a color feeder, additive doser, or dosing machine) is a device that meters and feeds precise quantities of additives, colorants, masterbatch, or other processing aids into the main material stream of a plastic processing machine — typically an injection molding machine, extruder, or blow molding machine. The doser sits between the material feed hopper of the processing machine and the main material supply (usually a virgin resin or recycled material hopper). It draws a measured quantity of additive or color concentrate from its own hopper and mixes it into the main material stream at a precisely controlled rate, expressed as a percentage of the main material throughput or as an absolute mass flow rate. The quality of this dosing process matters for three reasons: Color consistency: Even small variations in the ratio of color concentrate to base resin — as little as 2-3% — can produce visible color differences between parts in the same production batch Additive performance: Many additives (UV stabilizers, flame retardants, impact modifiers) have effective concentration windows: below the minimum concentration they provide no benefit; above the maximum they represent unnecessary cost and may cause processing problems Material cost: In facilities running high volumes, even a 1% overdose of an expensive additive or color concentrate can represent tens of thousands of dollars in annual material cost waste Volumetric vs Gravimetric Dosing: Key Differences Volumetric Dosers: How They Work Volumetric dosers meter material based on the volume of additive drawn per unit time. The dosing mechanism is typically a rotating screw or piston inside a barrel — as the screw rotates at a set speed, it displaces a fixed volume of material per revolution. By calibrating the screw geometry and motor speed, the doser can be set to deliv...

Industrial Mixer Selection Guide 2026: How to Choose the Right Plastic Mixer In plastic processing, the quality of your raw material blending directly determines product consistency, color uniformity, and production efficiency. Whether you run an injection molding factory, an extrusion line, or a film production plant, selecting the right industrial mixer is one of the most important equipment decisions you will make. This guide covers everything you need to know to size and select a plastic mixer in 2026 — from understanding the difference between vertical and horizontal designs to interpreting key specifications and matching mixer capacity to your production line. What Is an Industrial Plastic Mixer? An industrial plastic mixer (also called a plastic blender or mixing chamber) is a machine designed to blend plastic raw materials — virgin resin, recycled material, color masterbatch, and additives — into a homogeneous mixture before processing. The mixer ensures that each pellet or granule is evenly coated and mixed, which is critical for consistent product quality in injection molding, blow molding, and extrusion. Vertical Mixer vs Horizontal Mixer The two main designs for industrial plastic mixers are vertical mixers and horizontal mixers. Each has distinct advantages depending on your production setup. Vertical Mixers How they work: Materials enter from the top and are mixed by a vertical screw or paddle that rotates from below Best for: Small-to-medium batch sizes, easy material changeovers, floor-space-constrained facilities Advantages: Compact footprint, easy to clean, simple material discharge, lower initial cost Typical capacity range: 50 kg to 500 kg per batch Horizontal Mixers How they work: A horizontal mixing chamber with a long shaft and multiple paddles provides continuous, intensive mixing Best for: Large-scale continuous production, highly intensive mixing requirements Advantages: Superior mixing homogeneity for large batches, better for sticky or difficult materials Typical capacity range: 500 kg to 3000 kg per batch For most injection molding and standard extrusion applications, vertical mixers are the preferred choice due to their versatility, ease of operation, and favorable cost-to-capacity ratio. Key Applications for Industrial Plastic Mixers Industrial plastic mixers serve a wide range of applications across multiple industries: Injection Molding: Pre-mixing virgin resin with recycled material, color masterbatch, and performance additives before feeding into the injection molding machine Film and Sheet Extrusion: Blending different resin grades and colorants for consistent film quality and color Pipe and Profile Extrusion: Ensuring uniform distribution of additives like UV stabilizers and pigments Blow Molding: Preparing evenly mixed material for consistent bottle and container production Recycling Operations: Homogenizing shredded recycled plastic before re-extrusion to improve pellet quality How to Size ...

  In the industrial production field, stable and precise temperature control is the key to ensuring product quality, and the water-type mold temperature machine has become an indispensable auxiliary equipment for various manufacturing industries. Our 6KW water-type mold temperature machine, with SGS-CE certification, fully complies with international quality standards, ensuring safe and stable operation in various production scenarios. Different from standard equipment, we focus on customization services to meet the diverse needs of different enterprises. Whether it is adjusting the temperature control range, optimizing the equipment structure, or adapting to different voltage standards, we can tailor the solution according to your actual production needs. The machine is designed to work stably at 120℃, which can perfectly match the temperature requirements of injection molding, die casting, rubber processing and other processes. -----------------------------   With ±0.1℃ precise temperature control, it avoids the quality problems caused by temperature deviation, effectively improving production efficiency and product qualification rate. The SGS-CE certification ensures that the equipment meets international safety and environmental protection standards, which can be smoothly used in global industrial sites and avoid compliance risks. Simple operation, reliable performance and customizable design make our water-type mold temperature machine an ideal choice for your industrial production. We are committed to providing professional customization services to solve your temperature control pain points and escort your production efficiency. ----------------------------- CONTACT US   Address: No. 2 (103B), Yian Industrial Zone, Fenggang Town, Dongguan City, Guangdong Province, China. Leika Li Tel / WhatsApp: +86 185 2053 2504Email: leika@gdzillion.cn Hendrix Lee Tel / WhatsApp: +86 156 0223 2700Email: hendrix@gdzillion.cn

In the plastic processing and recycling industry, excessive noise, strict environmental regulations, and production efficiency have long been major challenges for enterprises. Traditional crushers often produce noise over 90 decibels, which not only harms workers’ health but also puts factories at risk of environmental rectification.   Our low-noise plastic crusher focuses on silent and efficient performance, integrating advanced crushing technology with eco-friendly design. It provides a one-stop solution for plastic recycling, suitable for recycling scraps in injection molding workshops, large-scale processing in recycling centers, and crushing plastic parts from electronics, automobiles, and other fields. ----------------------------- Core Advantage: Ultra-Low Noise, Quiet Operation   We adopt a full-chain noise reduction system to minimize noise from the source:   Optimized structure with high-precision balanced cutter shaft and integrated cutter box, greatly reducing vibration Double-layer soundproof cover and shock-absorbing base to block noise transmission Stable low-speed high-torque transmission for smoother operation   Tested by third-party authorities, the idling noise is as low as 52 decibels, and the working noise is controlled between 55–65 decibels, far lower than the national industrial noise standard. Workers can communicate normally without ear protectors, creating a healthier workshop environment. ----------------------------- High Efficiency & Strong Adaptability   Silent operation does not mean reduced efficiency. Our crusher delivers powerful performance:   Equipped with SKD-11 high-hardness alloy blades, which are wear-resistant and durable, easily crushing ABS, PC, PP, POM, PE films, plastic trays and other materials Variable frequency motor that automatically adjusts speed, saving 12%–18% energy compared with traditional models Intelligent overload protection, automatically stopping when metal impurities are detected to protect the machine   The fully sealed structure and dust removal system effectively control dust emissions, meeting international environmental standards such as CE and RoHS, making it ideal for export to Europe, America and other markets.   Wide Application Scenarios   This crusher is widely used in various industries:   Injection molding workshops: Real-time crushing and material recycling, reducing waste and labor costs Plastic recycling bases: Large-scale processing with low noise, complying with environmental requirements Electronic waste recycling: Precise crushing of small and precision plastic parts Automobile parts recycling: Capable of crushing high-strength plastics such as battery shells Medical plastic waste treatment: Sealed and low-vibration, avoiding secondary pollution     Easy Maintenance & Reliable Service   We prioritize convenient operation and after-sales support:   User-friendly design fo...

Sprue Specialized Shredder: Dedicated for Injection Molding Hard Scrap Recycling Machine Description This is a specialized shredding device tailored for hard material processing: 1.1 Adopts high-hardness SKD-11 blades, configured with 18 moving blades + 2 fixed blades; features strong cutting force and wear resistance, stably satisfies hard material shredding needs   1.2 Equipped with 22KW (30HP) high-power motor, maintains stable output speed of 480r/min; efficiently shreds injection molding hard blocks, avoids jamming and incomplete shredding   1.3 Hopper inlet size reaches 340410mm, accommodates large-volume injection molding sprues; machine weight is about 1000kg, ensures stable operation   1.4 Overall dimensions are 17501840*1950mm, fits layout of most injection molding workshops; supports 380V industrial voltage (50HZ), complies with standard factory electrical specifications, enables quick production startup after connection -----------------------------   Core Applications   2.1 Designed for injection molding production scenarios, targets hard wastes including sprues, solidified hard material blocks and production scraps, realizes fast and uniform shredding   2.2 Shredded materials can directly enter pelletizing process and be reused in injection molding production; helps enterprises achieve raw material recycling, reduce waste and cut production material costs ----------------------------- CONTACT US   Address: No. 2 (103B), Yian Industrial Zone, Fenggang Town, Dongguan City, Guangdong Province, China. Leika Li Tel / WhatsApp: +86 185 2053 2504Email: leika@gdzillion.cn Hendrix Lee Tel / WhatsApp: +86 156 0223 2700Email: hendrix@gdzillion.cn

A Compliant Choice for Food Production Cooling: 4 Core Advantages of 50 HP Air-Cooled Chillers In food production processes, temperature control is directly related to product safety, quality stability, and production compliance. Excessively high or fluctuating temperatures can easily lead to food spoilage, microbial growth, and may also affect the compliance of production processes. With targeted design and performance, 50 HP air-cooled chillers have become the preferred cooling equipment for food production workshops and warehouses. Their core advantages directly address industry pain points, building a solid temperature defense line for production links. Precise Temperature Control, Meeting Strict Food Production Standards Food processing, fresh-keeping and other links have extremely high requirements for temperature accuracy. Most scenarios need to maintain a constant range of 0-25℃. Equipped with a high-precision temperature control system, 50 HP air-cooled chillers can control temperature fluctuation within ±1℃, effectively avoiding product spoilage, poor taste and other problems caused by temperature imbalance. At the same time, the equipment supports on-demand adjustment of wind speed and cooling intensity, adapting to the cooling needs of different food production scenarios such as baking, refrigeration, and cooked food processing. Energy-Efficient and High-Performance, Reducing Production and Operation Costs Food production is often accompanied by 24/7 continuous operation, and the energy consumption of cooling equipment directly affects enterprise operating costs. 50 HP air-cooled chillers adopt high-efficiency compressors and optimized air duct design, with cooling efficiency 15%-20% higher than traditional equipment. They can save a lot of power consumption under the same cooling effect. Their intelligent start-stop function can also automatically adjust the operating state according to the workshop temperature, avoiding invalid energy consumption. Long-term use can significantly reduce production costs for enterprises and improve profit margins. ----------------------------- Safe and Compliant, Adapting to Hygiene Requirements of the Food Industry The food production industry has strict regulations on equipment hygiene and safety. 50 HP air-cooled chillers use food-grade environmentally friendly refrigerants, which are non-toxic, odorless, and non-polluting to food materials, complying with national food safety standards. The equipment body is made of corrosion-resistant and easy-to-clean 304 stainless steel, with a smooth surface without dead corners, which can effectively avoid bacterial growth and facilitate daily cleaning and disinfection. It meets the hygiene management requirements of food production workshops and helps enterprises pass compliance audits. Stable and Durable, Ensuring Uninterrupted Continuous Production The food production process is continuous, and the stability of cooling equipment directly affects pro...

  In manufacturing industries such as injection molding, die casting, and extrusion, mold temperature controllers, as core equipment for controlling mold temperature, typically account for 15%-30% of the total production energy consumption. With the continuous rise in energy costs, energy-saving transformation of mold temperature controllers has become an important breakthrough for enterprises to reduce costs and increase efficiency. This article will share 3 practical and verified energy-saving transformation schemes for mold temperature controllers, helping enterprises significantly reduce energy consumption while ensuring production quality.   Scheme 1: Replace with High-Efficiency Heating Elements to Reduce Heat Loss Traditional mold temperature controllers mostly use ordinary metal heating tubes, with a heat conversion efficiency of only 70%-80%, and a large amount of heat is lost through the shell during the heating process. The first step in energy-saving transformation is to replace the heating elements with ceramic heating tubes or electromagnetic heating coils. The heat conversion efficiency of ceramic heating tubes can reach more than 90%, and they have the characteristics of fast heating speed and small thermal inertia; electromagnetic heating makes the metal barrel heat itself through electromagnetic induction, avoiding heat conduction loss, and the thermal efficiency can even reach 95%. At the same time, adding high-temperature resistant insulation cotton to insulate the heating chamber and pipelines of the mold temperature controller can further reduce heat loss. After replacing ceramic heating tubes and adding insulation transformation, an injection molding enterprise reduced the daily power consumption of a single mold temperature controller from 80 kWh to 55 kWh, saving 750 kWh of electricity per month, with a significant energy-saving effect. --------------占位---------------   Scheme 2: Install Waste Heat Recovery System for Secondary Utilization of Waste Heat During the cooling cycle of the mold temperature controller, a large amount of high-temperature waste heat is generated (such as high-temperature oil after cooling of oil temperature machines and hot water discharged by water temperature machines). If this waste heat is directly discharged, it not only wastes energy but also increases the cooling load of the workshop. Installing a waste heat recovery heat exchanger is an effective way to solve this problem. Specifically, a plate heat exchanger can be connected in series in the cooling circuit of the mold temperature controller to transfer the waste heat to the cold water in the cold water tank. The preheated cold water then enters the heating chamber of the mold temperature controller, reducing energy consumption during the heating stage; in addition, the recovered waste heat can also be used for workshop heating, preheating of employees' domestic water and other scenarios. After installing a waste heat reco...