ABS Engineering Plastic Twin Screw Extruder

This equipment is a high-performance twin screw extruder designed for precise processing of ABS (acrylonitrile butadiene styrene copolymer) and its alloy materials. As the core equipment for ABS modification, blending granulation, and masterbatch preparation, this model is positioned between general polyolefin production lines and high-end engineering plastic production lines, dedicated to helping users achieve high impact resistance, thermal stability, and excellent surface quality ABS engineering plastic granulation.

·High torque and free volume matching: Equipped with a high torque gearbox and co rotating twin screw, it provides precise shear control for ABS engineering plastic extrusion, ensuring sufficient dispersion of additives while avoiding material overheating and degradation.
·Corrosion resistant and wear-resistant configuration: Adopting bimetallic alloy liner barrel and nitride steel screw, specially strengthened for the abrasive components in mineral filled ABS formula, significantly extending equipment life.
·Precise temperature control system: segmented barrel design, combined with cast copper heater and closed-loop water cooling system, achieves precise control of the thermal process of amorphous ABS material, preventing melt fracture.
·Efficient devolatilization device: Integrated vacuum exhaust system effectively removes moisture, residual monomers, and low molecular weight volatiles, ensuring dense cutting of ABS engineering plastics and reducing screw carbon deposition.
·Modular screw combination: flexible screw component configuration, can quickly adapt to different ABS modification needs (flame retardant, reinforcement, toughening, etc.) without changing the host, greatly improving production flexibility.

Noted: Details depend on your requirements and need.

Why choose this ABS engineering plastic twin screw extruder instead of a regular plastic granulator?

Unlike conventional polypropylene and polyethylene extruders, this ABS twin screw extruder is designed with a larger free volume and special forced feeding threaded components to address the high bulk density fluctuations of ABS powder. This effectively solves the problems of bridging, unstable feeding, and poor plasticization that are prone to occur in ordinary extruders during the ABS "hard soft" phase transition process.

In terms of screw configuration, we fully consider the rheological properties of ABS and optimize the ratio of distributed mixing and dispersed mixing to ensure that impact modifiers (such as acrylic esters, EPDM, etc.) are evenly distributed without damaging the original toughness of the material. At the same time, the low shear melting section designed specifically for ABS engineering plastic granulation, combined with the high torque conveying section, significantly reduces the defect rate of downstream injection molded products - this is particularly important for high demand applications such as automotive interior parts and electronic and electrical casings.

·Automotive industry: used for producing high impact ABS or PC/ABS alloy materials such as instrument panels, interior parts, and grilles.
·Electronic appliances: flame retardant ABS granulation, used for TV casings, displays, and smart home device casings.
·Consumer goods: High gloss ABS engineering plastic extrusion, used for luggage, musical instruments, protective equipment, etc.
·3D printing consumables: Precision extrusion production of ABS wire, ensuring strict diameter tolerances and stable melt index.
·Customized color masterbatch: Using ABS as the carrier resin, produce high concentration color masterbatch.

We are well aware of the uniqueness of each ABS modified formula and provide comprehensive customized solutions for this purpose:
·Customized screw configuration: Design specialized screw component combinations for high filling (up to 80% calcium carbonate) or high glass fiber (30% -50%) ABS formulations.
·Feeding system optional: Volume or weight loss measuring scales can be selected to meet the precise feeding of ABS powder, granular materials, and liquid additives.
·Downstream auxiliary machine integration: According to the requirements of ABS cutting hardness and shape, it is equipped with a water tank, air knife, and high-speed cutting machine (for strip cutting or underwater cutting) to achieve integrated production line design.
·Control system upgrade: Provide PLC fully automatic control system, support remote diagnosis and real-time data acquisition, and meet the requirements of Industry 4.0 integration.

Q1: What are the main differences between this ABS twin screw extruder and a regular single screw extruder when processing ABS engineering plastics?
A: Single screw extruders are usually only suitable for simple melt extrusion, while twin screw extruders have irreplaceable advantages in blending modification and dispersion mixing. For the modification of ABS engineering plastics, such as adding flame retardants, glass fibers, or toughening agents, twin screw extruders can provide precise shear control and efficient distribution mixing, ensuring uniform dispersion of additives while effectively removing small molecule volatiles through the exhaust section. Single screw extruders are difficult to achieve the same level of mixing quality and exhaust effect.

Q2: How to avoid thermal degradation of ABS material during extrusion process?
A: ABS belongs to shear sensitive materials, and high temperature or strong shear can easily lead to degradation. Our twin screw extruder adopts a segmented barrel with independent temperature control for each section, and forms a "low shear melting zone" and a high torque conveying zone through a specially designed screw configuration. The closed-loop cooling water system can quickly remove excess frictional heat, stabilize the melt temperature within a safe window of 200 ℃ -240 ℃, and effectively avoid yellowing, carbonization, or odor problems during ABS engineering plastic granulation.

Q3: Can this equipment be used to produce fiberglass reinforced ABS (ABS+GF) without excessive wear and tear?
A: Okay. Under standard configuration, we use a bimetallic barrel and nitride steel screw, which can meet the processing requirements of conventional fiberglass reinforced ABS. If ABS engineering plastics with high glass fiber content (such as ABS+30% GF) are produced for a long time, we recommend upgrading them to high wear-resistant alloy screws (such as powder metallurgy materials) and fully wear-resistant barrel liners, which can significantly extend the life of key components. Nanjing Kelongwell Chemical Machinery Co., Ltd. can provide targeted wear-resistant solutions based on your fiberglass ratio.

Q4: What is the typical energy consumption of the ABS twin screw extruder production line?
A: Taking the KLWE-65 model as an example, when processing conventional ABS engineering plastic formulas, the energy consumption per ton of material is usually 180-220 kWh. Compared to traditional low torque models or old hydraulic driven extruders, our high torque gearbox has higher transmission efficiency and reduces energy consumption by about 15% -20%. Long term operation can significantly reduce production costs.

Q5: What is the delivery time for a customized ABS engineering plastic twin screw extruder production line?
A: The delivery cycle for standard models such as KLWE-35 and KLWE-50 is approximately 35-50 days. For fully customized ABS modified production lines that include special screw materials, specialized downstream pelletizing systems, or complex feeding configurations, the delivery cycle is generally 50-60 days. After the contract is signed, we will provide a detailed project schedule to ensure transparency and controllability in all aspects.