Leveraging outstanding operational management and strong technical expertise, Flying Tiger KJ was honored withthe 28th Rising Star Award。This prestigious recognition affirms our excellence in product quality, management systems, and competitiveness in international markets.

Our equipment is trusted across industries, powering key plastic manufacturing processes such as Injection Molding, Blow Molding, Extrusion, and Compounding—the essential methods of how plastic is made.

Yes, we are committed to meeting international standards. For example, ourinnovative Infrared Rotary Dryer has officially obtained CE certification, ensuring compliance with the EU’s safety, health, and environmental requirements.

Yes, Flying Tiger KJ has a global network. We have agents and offices in Thailand, Vietnam, Mexico, and more, ensuring local support wherever you are. You can get assistance through our Service & Support department (service@tigerkj.com). We welcome manufacturers worldwide to join our production system network.

Please visit our Contact Us page and submit a form for any collaboration inquiries.

Dosing is the controlled process of feeding an exact quantity of plastic pellets or powders into the primary processing equipment. Even slight deviations in material quantity can lead to product defects, which is why precise dosing plays a vital role in ensuring consistent product quality.

Blending is the process of uniformly mixing different types and grades of plastic pellets or powders. Dosing Blender Series is a precision dosing and blending system designed to mix raw materials accurately and evenly, thereby enhancing the functionality and performance of the materials.

Dosing and blending equipment offer three key benefits:

1. Fast return on investment (ROI).
2. Improved cost efficiency: Prevents overproduction and raw material waste.
3. Enhanced product quality: Ensures precise formulation accuracy.

Dosing Blender enable accurate dosing of regrind and virgin resin blends (such as 20% regrind with 80% virgin material), maintaining consistent physical performance of the final product while optimizing material costs.

In plastic product manufacturing, even small deviations in material proportions can lead to reduced performance or visible defects. By guaranteeing precise dosing and homogeneous mixing, a dosing blender not only ensures that products meet quality standards but also helps companies reduce material waste, lower costs, and enhance competitiveness.

When the product formulation contains multiple raw materials (e.g., base resin + secondary resin + color masterbatch + additives), a blender equipped with multiple dosing units should be selected to precisely control the proportion of each component simultaneously.

Volumetric Dosing Blender operate based on volume measurement. They control the feeding device purely by time. Once calibrated, a volumetric system can deliver a relatively consistent volume of material per second.
Overall, volumetric dosing systems are simpler to set up, faster to install, and more cost-effective. Since they measure volume instead of weight, no special weighing equipment is required.
However, regular calibration is necessary to maintain satisfactory dosing accuracy.

For example, if your process requires very high accuracy, a Gravimetric Dosing Blender is the ideal choice. Conversely, if the material flow is relatively stable and/or the material's density variation is minimal, a Volumetric dosing blender is a more suitable option.

Loss-in-Weight systems control feeding by continuously monitoring the decrease in raw material weight over time. This design provides the highest level of accuracy and is ideal for micro-dosing, high-value materials, or continuous dosing operations requiring exceptional stability.

Gravimetric systems account for material density and offer higher accuracy than volumetric systems. However, since the material falls freely from the discharge gate to the weighing device, this can affect precision. Loss-In-Weight systems have a more precise design, allowing different weighing modules tailored to the material. They operate faster and begin measuring weight changes the moment the material leaves the scale, minimizing errors. Therefore, Loss-In-Weight systems provide more functions and higher accuracy.

Manufacturers should prioritize Gravimetric Dosing Blender when the process demands extremely strict control over final product color, structure, or additive ratios, and requires high accuracy along with automatic compensation for raw material density variations.

Gravimetric Dosing Blender often uses a vertical mixing design and dual-cone gates, which facilitate quick material changeover with minimal residue. This design also ensures precise ingredient dosing, thereby improving product consistency.

By using a precision screw or rotary design combined with a mixing device, the masterbatch is accurately dosed and evenly dispersed into the base resin, preventing color variations.

The core function of a chiller is to precisely control temperature. By efficiently removing heat, it allows molten plastic to solidify quickly and evenly, ensuring high molding quality. At the same time, a chiller shortens the production cycle and increases throughput; without it, cooling takes longer and productivity is reduced.

Chiller shortens the production cycle by accelerating the mold cooling phase. Since the cooling phase often accounts for more than half of the total cycle time, efficient heat removal allows the plastic to solidify faster, significantly increasing throughput.

When selecting a chiller, two key factors should be considered:

1. 1.Cooling method: Choose between air-cooled or water-cooled systems.
2. 2.Cooling capacity calculation: Provide the hourly material processing capacity (kg/hr), type of material, and the temperature difference between inlet and outlet water to accurately calculate the required cooling capacity in Kcal/hr or RT (Refrigeration Tons).

• Air-Cooled: Uses ambient air and fans for cooling, requires no cooling tower, easy to install, but efficiency is affected by ambient temperature. Suitable for facilities with limited space and cooler environments.
• Water-Cooled: Relies on a cooling water tower, offers higher cooling efficiency, is unaffected by ambient temperature, and is ideal for large-scale operations requiring continuous and high cooling capacity. However, it has higher initial equipment costs and more complex installation and maintenance.

• Portable: Designed to cool one or a few machines, offering high flexibility and easy mobility.
• Central: Permanently integrated into the factory infrastructure, serving all machines and providing consistent and stable temperature control throughout the facility. Ideal for large-scale manufacturing environments.

Smart chillers are equipped with automation and digital controls that enable:

1. 1.Precise temperature control system: PLC logic control combined with multifunctional touch panels.
2. 2.Digital networking: Remote control and predictive remote diagnostics (e.g., Modbus, RS-485).
3. 3.Inverter-equipped compressors: The system can automatically adjust compressor speeds based on actual production heat loads, instead of traditional “on/off” operation.

By using inverters to control the compressor’s operating frequency, chillers can adjust their operation according to actual cooling demand, thereby reducing power consumption. Inverter models can save 15% and 30% of energy.

Energy-efficient chillers using eco-friendly refrigerants (R407C, R410A, R134) help manufacturers comply with increasingly strict environmental regulations and reduce the carbon footprint of production facilities.

Chillers minimize mold temperature fluctuations, ensuring consistent part dimensions, surface quality, and structural integrity across cycles. Stable cooling also protects molding equipment from thermal stress, reducing the risk of failures and downtime.

1. 1.Air-Cooled: Check if the condenser fins are clogged with dust (clean if necessary) and verify if the fan is malfunctioning.
2. 2.Water-Cooled: Check if the cooling tower is operating, inspect for scale buildup or blockages in the water circuit, and ensure the cooling water temperature is not too high.

1. 1.Refrigerant shortage: Check sight glass for bubbles or pressure gauge (leak check and refrigerant recharge needed).
2. 2.Overload: Production heat load exceeds the chiller’s design capacity.
3. 3.Compressor issues: Check inverter output or compressor operating current.
4. 4.High pressure too high:
   Air-Cooled: Condenser fins clogged with dust or poor ventilation; regularly clean condenser fins and ensure proper airflow around the unit.
   Water-Cooled: Cooling tower water temperature too high or insufficient flow; check cooling water pump operation and clean the cooling water system to remove scale buildup.。

It usually occurs when the set temperature is too low or the water flow is insufficient. Check if the chilled water setpoint is too low (close to 0–3 °C) and ensure that the water flow inside the evaporator is adequate to prevent internal icing and pipe rupture.

Poor or uneven mold temperature control during injection molding often results in defects including gas marks, sink marks, warping and short shots, which contribute to higher scrap rates and increased costs associated with rework.

Precise temperature control directly impacts cycle time, part quality, and production costs. Without accurate temperature regulation, manufacturers face higher scrap rates, longer cycle times, and increased operational expenses.

The primary consideration is your target operating temperature and process requirements:

1. 1.Water-based systems have excellent thermal conductivity, allowing rapid absorption and removal of mold heat, significantly improving heat exchange efficiency.
   -Operating temperature range: 120°C to 180°C.
   -Water is easy to source, low cost, clean, and environmentally friendly, making it ideal for production environments with high cleanliness standards (e.g., medical devices, electronic components).
2. 2.Thermal oil systems feature high boiling points and low vapor pressure, maintaining excellent system stability even at high temperatures.
   -Operating temperature range: 180°C to 350°C
   -Suitable for applications requiring very high temperatures (above 200°C), such as specialty engineering plastics (e.g., footwear manufacturing) or precision casting.

Heating power must be precisely calculated to meet process requirements. Factors such as required heater capacity, pump circulation capability, target operating temperature, mold size, and production cycle time are all considered to accurately determine the specifications.

When evaluating the technical performance of a temperature control unit (mold temperature controller), the key factors to consider include:

1. 1. Maximum inlet temperature.
2. 2. Heat transfer medium.
3. 3. Heating capacity.
4. 4. Cooling capacity.
5. 5. Pump capability (flow rate/pressure).
6. 6. Internal system structure.

The process is fully automatic and divided into three stages：

1. 1. Heating: Automatically heats at startup or when the temperature drops too low during production.
2. 2. Cooling: Automatically activates cooling when the temperature rises too high during production.
3. 3. Maintenance: Maintains heating during production pauses for quick temperature recovery. The system uses a three-step controller and pulse switching for precise temperature control.

Flying Tiger KJ provides standard piping configurations. The connection methods for water inlets/outlets and oil inlets/outlets, pipe diameter sizes, and fitting types can all be customized according to the customer's specific requirements.

Mold temperature controllers can typically be controlled by the main equipment. For better technical performance and reliability, it is recommended to use digital interfaces such as RS485. Through compatible data interfaces, production machines can directly monitor and adjust mold temperature controller parameters.

Only manufacturer-certified specialized heat transfer oils should be used. Qualified heat transfer oils, preferably synthetic oils, are required. Hydraulic oils or oils without specified should never be used, as they may cause equipment damage or safety hazards.

1. 1. Check the heater: The heating element may be damaged or coated with carbon deposits.
2. 2. Check the flow: Pipeline blockage or insufficient pump pressure causing slow circulation.
3. 3. Cooling solenoid valve: If it gets stuck in the “open” position, cooling water will continuously flow in, causing the heating process to fail.

1. 1. Electrical: Check the pump overload settings.
2. 2. Piping: Ensure mold piping is free of blockages and quick connectors are properly installed.
3. 3. Medium: For oil-type mold temperature controllers, check if the oil has deteriorated or thickened, or if hydraulic oil has been mistakenly used.

The shaft seal is a consumable part; long-term high-temperature rotation causes seal wear. If leakage is detected, it is usually recommended to replace the shaft seal directly and check for proper concentric installation.

Plastic raw materials are generally divided into two types:

1. 1. Hygroscopic materials (e.g., Nylon, TPU, PET): Moisture penetrates their molecular structure, requiring the use of dehumidifying dryers.
2. 2. Non-hygroscopic materials (e.g., PP, PE): Moisture only adheres to the surface, so standard hot-air dryers are usually sufficient.

Silver Streaks are often caused by moisture trapped in the resin. If hygroscopic resins (like PET, Nylon) are not properly dried using a Dehumidifying Dryer, the moisture turns into steam during injection, creating silver streaks on the surface.

"We provide specialized solutions for PET, including PET bottle preform molding, PET extrusion, and PET sheet recycling. We particularly recommend our innovative Infrared Rotary Dryer, which can dry recycled PET in a significantly shorter time. When combined with a downstream Vacuum Dehumidifying Dryer (KVD), it can achieve up to a 5% increase in intrinsic viscosity (IV)."

"To determine the dryer size, ensure that the dryer specifications (such as airflow and dehumidifying capacity) match the associated drying hopper. The Flying Tiger team assists in selecting the right model based on key data, including raw material type, hourly processing capacity (kg/hr), initial moisture content, and target moisture level."

Working principle: uses hot air convection circulation technology to transfer heat.

The process operates as follows：

1. 1.Air intake and filtration :A blower draws in ambient air, which passes through a filter to block dust.
2. 2.Heating： The air flows over the heater and is heated to the set temperature.
3. 3.Diffusion and drying： The hot air evenly dries the plastic raw materials inside the hopper.
4. 4.Moisture removal： As the hot air rises, it carries moisture away from the material surface, which is then discharged from the top or recycled for circulation.

It uses a desiccant with high affinity for water. Moist air passes through the desiccant, which adsorbs the moisture and dries the air. The desiccant requires periodic regeneration (heating to remove moisture) to restore its drying capacity.

It is a dual desiccant system that continuously switches between adsorption (drying) and regeneration modes, ensuring a constant supply of dry air. It has a long service life, but the molecular sieve (desiccant) will eventually need to be replaced.

It uses a continuous closed-loop design equipped with a rotating wheel (rotor). The rotor continuously rotates through three airflow zones—dehumidification, regeneration, and cooling—ensuring moisture is absorbed at a constant rate and providing stable low dew point air.

By using vacuum technology to lower the boiling point of water (below room temperature), it rapidly extracts water vapor from the pellets. This technology can cut production time by half and save up to 30% energy, making it especially suitable for temperature-sensitive materials.

Dew point is an indicator of air dryness. The standard dew point for dehumidifying dryers is typically below -40°C, which is critical for ensuring high molding quality of engineering plastics.

1. 1. Control initial moisture: Properly store raw materials to minimize air exposure.
2. 2. Set correct temperature: Adjust the drying temperature according to the material’s characteristics, and monitor moisture levels at the dryer’s inlet and outlet.
3. 3. Maintain a stable dew point: Keep the dew point consistently between -40°C and -60°C.

"These products are CE certified. Specifically designed for PET recycled pellets or PET chips, it uses infrared technology to rapidly penetrate materials from the inside out for drying and crystallizing. This not only significantly reduces drying time but also saves over 30% energy. When combined with a downstream dehumidifying dryer, it can increase intrinsic viscosity (IV) by approximately 5%, greatly enhancing the quality of recycled materials. "

We offer complete cooling systems, dehumidifying dryer and loading systems to ensure PET material reaches extremely low moisture content before entering the injection machine. This is key to producing high-transparency, high-strength preforms.

PET extrusion (such as films and sheets) is extremely sensitive to moisture. Our Crystallizer prevents hydrolysis of the material inside the extruder screw, ensuring bubble-free sheets with uniform thickness.

Recycled PET flakes are usually in an amorphous (non-crystalline) state, and direct heating can cause them to clump together. The Crystallizer converts them into a crystalline state first, preventing sticking during drying and improving their physical properties.

Infrared technology heats materials from the inside, drying in just 8–20 minutes. Traditional hot-air methods take 2–4 hours. Energy use is cut by 30%–50%, making it faster and more efficient.

1. 1. Regeneration system: Check if the regeneration heater is faulty (insufficient temperature prevents desiccant regeneration).
2. 2. Filter: Inspect the return air filter for blockage that may cause insufficient airflow.
3. 3. Rotor / Cooling water: Check if the rotor belt is broken, or if the cooling water temperature is too high.

1. 1. Insufficient airflow: The inlet filter is heavily clogged with dust.
2. 2. SSR/Contactor: The heating relay sticks, which may cause continuous heating.
3. 3. Temperature sensor: The sensor is damaged or has shifted from its proper position.

It depends on usage frequency and material contamination. Generally, replacement is recommended every 2-3 years, or when the dew point cannot be lowered to -40°C and regeneration does not improve performance.

By using a closed conveying system, it significantly reduces dust in the workshop, lowers noise levels, and eliminates the heavy labor and spillage risks associated with manual material handling, thereby enabling modernized factory management.

When planning, you should consider the factory layout and total material consumption. Our system’s core is the central conveying unit, which uses vacuum suction technology combined with the Material & Powder Loader Series to transfer raw materials from storage to point of use. This enables long-distance, dust-free, automated conveying.

It primarily uses vacuum conveying (also known as negative pressure conveying) technology. The core equipment is the Central Loader, which generates negative pressure to suck raw materials from the storage point and transport them to the point of use.

1. 1. Auto-Cleaning Vortex Cyclone: Removes dust during production, protects the main unit, and ensures material cleanliness.
2. 2. Suction Box With Piping-Purge Device: Automatically closes the material source when feeding stops and clears residual material from the pipeline.

By using the purge function. After each conveying cycle, the Suction Box With Piping-Purge Device introduces air to clear all remaining pellets from the pipeline into the hopper, ensuring the pipeline is clean and preventing mixing of different materials.

Auto Loader is mainly used to convey granular raw materials; a Auto Powder Loader is specially designed with filtration and sealing structures to handle airborne powder, preventing dust leakage.

1. 1. Vacuum leakage: Check sealing of pipeline joints.
2. 2. Filter blockage: The central dust collector filter element needs auto cleaning or replacement.
3. 3. Suction Box With Piping-Purge Device: Inspect the operation of the suction box.
4. 4. Bridging: Material bridging at the bottom of the storage bin causing no discharge.

1. 1. Set purge time: Ensure the system’s purge duration is sufficiently long.
2. 2. Check suction box: Confirm that the cylinder of the piping‑purge device operates smoothly and that the valve properly closes the material source when feeding stops.

1. 1. Clogged filter: Inlet airflow is restricted, which may cause overload.
2. 2. Worn bearings: Check for abnormal noises from blower bearings.
3. 3. Blocked exhaust: Inspect if the exhaust silencer is clogged with dust.

Yes, we are not only equipment manufacturers but also experts in turnkey solutions. We offer comprehensive services from central material conveying, electrical and plumbing planning, to equipment installation, specifically for injection molding, extrusion, and PET recycling industries.

Yes. During PET recycling and conveying, dust can increase the black spot rate in finished products. Our system integrates Auto-Cleaning Vortex Cyclone and Static Eliminator to ensure raw material cleanliness.

1. 1. Power supply: Check if the 24V power supply inside the control cabinet is functioning properly.
2. 2. Connection cables: Inspect the communication cables between the screen and the PLC unit for any looseness.
3. 3. Hardware failure: If the power is normal but no display appears, the screen’s backlight panel or mainboard may be damaged.
4. 4. PLC configuration: If applicable, reprogramming or resetting the PLC may be required.

1. 1. Check power supply: Confirm voltage is normal.
2. 2. Inspect cooling water: Ensure no debris in the cooling tower water.
3. 3. Manual test: First, manually start the pump or blower. Confirm there is no jamming or abnormal noise before switching to automatic mode.