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Q

What are the core products of Shuangqin Machinery? What materials are they mainly used for?

A

Core products include twin-screw extruders (SQM/SQS series), triple-screw extruders (SQJJ series), and double-stage kneading extruders (SQJS series), as well as various granulation systems (water-cooled strand, underwater pelletizing, etc.). Mainly applicable to flame-retardant, reinforced, filled, and co-blended processes of PA, PP, PE, ABS, LCP, TPR, and other plastics, covering areas such as masterbatch, cable materials, and medical materials.

Q

What are the main differences between a three-screw extruder (SQJJ series) and a twin-screw extruder?

A

The triple-screw extruder adopts a parallel, same-direction, and equal-diameter structure. It achieves mixing effects comparable to those of twin-screw extruders with much larger length-to-diameter ratios (40-52) at a smaller length-to-diameter ratio. This is especially suitable for high-fill applications (such as calcium carbonate ≥60%) and high-dispersion requirements (such as high-concentration black and white masterbatches). Mixing efficiency is increased by 25%, and energy consumption is reduced by 20%.

Q

How to choose extrusion equipment suitable for heat-sensitive materials (such as PVC)?

A

Recommended is the twin-stage kneading extruder unit (SQJS series), which combines "high-speed, high-intensity twin-screw kneading + low-speed, low-shear single-screw" to avoid material over-shearing and degradation. Temperature control accuracy reaches ±2℃, specifically designed for PVC cable materials, hot melt adhesives, medical materials, etc.

Q

What is the production capacity range of the equipment? What is the production capacity of small/large models?

A

Laboratory-scale model (SQM-20) has a capacity of 1-10kg/h, while the largest industrial model (SQM-135) has a capacity of 3000-5000kg/h. The high-torque SQS-75 model has a capacity of 396-660kg/h when processing masterbatches, and the three-screw SQJJ-75 has a capacity of 300-600kg/h when processing high-filler materials.

Q

What does the after-sales service include? How long is the warranty period?

A

After-sales service includes: 1-year free warranty (for the entire machine and parts quality issues); Lifetime tracking service: spare parts supply, technical consultation, process optimization; Quick response: On-site service within 48 hours for domestic failures, and response within 72 hours for overseas failures.

Q

Do you offer customized screw configuration services? Can it adapt to special process requirements?

A

Offers 20+ types of modular screw element customization. Screw combinations can be designed according to the process (such as fiberglass reinforcement, biodegradable masterbatch, reactive extrusion), for example, optimizing the shear block distribution for flame-retardant masterbatch and designing high-torque screw elements for carbon black dispersion.

Q

Does the electrical control system support automated production? What control methods are available?

A

The entire series comes standard with PLC touch screen control, with an optional PC integrated system supporting remote monitoring (screw speed, temperature curve), fault warning, and data export, compatible with Industry 4.0 standards. Control methods include: electrical control cabinet operation, PLC touch screen, PC software, and remote cloud management.

Q

How can overseas customers get technical support? Are there any localized services?

A

We have served customers in more than 20 countries in Southeast Asia, Europe, and other regions, providing English technical documentation, video debugging, and on-site services from local partner engineers. We plan to establish service centers in Vietnam and India in 2025 to achieve same-day response for 80% of international customers.

Q

How to choose a granulation system? What is the difference between water-cooled strand and underwater pelletizing?

A

Water cooling bar: Suitable for conventional materials, simple equipment structure, low cost, particles are cooled through the water tank to avoid particle adhesion; Underwater granulation: Used for low viscosity, high elasticity materials (such as thermoplastic elastomers) or micro-particle granulation, the granulation process is completed underwater, the particle uniformity is high, suitable for high-end applications.

Q

Can you provide a trial service? Do I need to make an appointment in advance to visit the factory?

A

Support customer-provided materials for on-site machine testing and process demonstration (such as PE filler masterbatch granulation, ABS flame-retardant blending). Factory visits require 3 working days' advance notice and can be arranged with a technical engineer to explain the production line operation and R&D center.
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Guangdong Shuangqin Machinery Co., Ltd.

Twin-screw manufacturing expert!

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Sales Hotline: +86-13923133444

Company Phone: +86-13951797222

East China Office: +86-13852569666

Email: 550807443@qq.com

Address: No. 27, Gaoxin East Road, Jianghai District, Jiangmen City, Guangdong Province, China

Website: www.sq-machinery.com

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