EX-65QS Full Servo Straw Extrusion Line

High-Speed PP, PLA, PBS and PHA Straw Extrusion System

The EXTRUTEX EX-65QS Full Servo Straw Extrusion Line is a high-speed production system designed for manufacturing plastic and biodegradable drinking straws from PP, PLA, PBS, PHA and other compatible extrudable materials. The complete line combines precision extrusion, controlled heating, automatic feeding, forming, water cooling, blow drying, servo haul-off, take-up and synchronized cutting into one integrated production solution.

Equipped with a specially designed 65 mm screw with a 33:1 L/D ratio and a 30 kW servo motor, the EX-65QS provides stable extrusion performance and accurate production control. Depending on the straw diameter, wall thickness, length, material formulation and operating conditions, the line can achieve an extrusion output of approximately 50–65 kg/h and production speeds of up to 1,800 pcs/min.

PP / PLA / PBS / PHA 65 mm Screw 33:1 L/D 30 kW Servo Motor 50–65 kg/h Up to 1,800 pcs/min Full Servo Control

High-Speed Full Servo Straw Extrusion Technology

Modern straw manufacturers require more than basic extrusion equipment. High-volume production demands stable melt processing, accurate cooling, consistent traction and precise cutting. Even a small variation in extrusion speed or haul-off speed can affect the finished straw diameter, wall thickness and length. The EX-65QS has therefore been developed as a synchronized production system in which the major line functions work together under centralized PLC and servo control.

The main extruder uses a 65 mm screw with a 33:1 L/D ratio. This relatively long processing section provides controlled melting and conveying for different straw materials. The system is particularly suitable for PP, PLA, PBS and PHA formulations used in conventional, biodegradable and compostable straw products.

Servo drive technology provides accurate speed regulation and allows the extrusion, haul-off, take-up and cutting functions to be synchronized. This is especially important when producing thin-wall straws at high production speeds. The operator can monitor and adjust production parameters through the PLC touch-screen control system.

Key Features of the EX-65QS

EX-65QS Straw Extrusion Production Process

The complete EX-65QS production process is arranged as a continuous sequence from raw-material preparation to finished straw cutting. The following numbered diagram represents the basic process flow.

01 Raw material preparation → 02 Automatic feeding → 03 Servo extrusion → 04 Forming and water cooling → 05 Blow drying → 06 Servo haul-off and take-up → 07 Precision cutting.

Technical Specifications — EX-65QS

65 mm × 33:1 Servo Extrusion System

The extrusion section is designed around a specially configured 65 mm screw with a 33:1 L/D ratio. The long screw configuration provides sufficient processing length for controlled melting and conveying while maintaining stable output during continuous straw production.

A 30 kW high-efficiency servo motor drives the main extruder through a ZLY173 gearbox. Servo drive technology provides accurate rotational-speed control and allows the extrusion process to remain synchronized with downstream equipment.

This is particularly valuable for thin-wall drinking straws. When the extrusion rate, haul-off speed and cutting speed are correctly synchronized, the production line can maintain more consistent diameter, wall thickness and finished length.

Efficient Heating and Temperature Control

The EX-65QS uses far-infrared radiant heating with a total heating power of approximately 15 kW. Far-infrared heating is designed to provide efficient thermal transfer and rapid response during extrusion.

The machine incorporates six automatic temperature-control sets. Cooling fans assist the system when additional heat removal is required, helping maintain stable barrel temperatures during continuous operation. Stable temperature control is important for both conventional PP and biodegradable materials because changes in melt temperature can influence viscosity, extrusion pressure and final straw dimensions.

PP, PLA, PBS and PHA Straw Production

The EX-65QS is suitable for a range of straw materials. PP remains a widely used material for conventional plastic straws because of its processing stability and mechanical properties. For manufacturers targeting biodegradable or compostable products, PLA, PBS and PHA can be processed when the selected grade is suitable for extrusion.

Material selection directly affects production parameters. Screw speed, melt temperature, cooling conditions and haul-off speed should therefore be established according to the specific material formulation and the supplier's processing recommendations.

Forming and Water Cooling System

After leaving the extrusion die, the hot straw tube enters the forming and cooling section. Controlled water cooling rapidly removes heat from the extruded material and helps establish the final straw dimensions.

The water storage tank is manufactured using 304 stainless steel and has a specified length of approximately 3,600 mm. The cooling section can be connected to a chiller so that the water temperature remains stable during extended production.

Consistent cooling conditions are particularly important when producing thin-wall straws. Variations in water temperature can influence solidification and dimensional stability, which is why the cooling system should be operated within a controlled temperature range.

Servo Haul-Off, Take-Up and Precision Cutting

The haul-off system provides controlled traction after the cooling section. Depending on the required product configuration, the haul-off can be supplied with a belt or roller arrangement.

The take-up section uses two 1.3 kW servo motors for synchronized movement. The servo-controlled system helps maintain accurate linear speed and supports precise coordination with the cutting mechanism.

The cutting unit can be configured for 90°, 60° or 45° cutting angles. The synchronized cutting process is designed to produce repeatable straw lengths without relying on manual timing.

Auxiliary Equipment

PLC Touch-Screen and Automatic Operation

The EX-65QS is equipped with a PLC touch-screen control system that provides centralized operation of the extrusion and downstream functions. Operators can monitor the production process and adjust relevant machine parameters through the control interface.

Full servo control reduces timing differences between the extruder, haul-off, take-up and cutting sections. Automatic diameter and length adjustment functions further simplify product changes and help improve production repeatability.

The system is designed for stable operation, low operating noise and efficient energy consumption. Its stainless-steel construction in key production areas also supports long-term operation in a demanding industrial environment.

EX-65QS-2 Full Servo Two-Color Straw Extruder

For manufacturers requiring two-color drinking straws, EXTRUTEX also provides the EX-65QS-2 Full Servo Two-Color Straw Extruder. This configuration extends the EX-65QS platform for two-color straw production while maintaining the same 65 mm main screw and 33:1 L/D concept.

The two-color system is suitable for PP, PLA, PBS, PHA and other compatible formulations. Depending on the straw diameter, length, material and production configuration, the EX-65QS-2 can operate at approximately 500–830 pcs/min.

Applications of the EX-65QS Straw Extrusion Line

The EX-65QS is designed for industrial manufacturers producing a wide range of drinking straw products. Its servo synchronization and flexible material capability make it suitable for both conventional plastic and biodegradable straw production.

• PP drinking straws
• PLA biodegradable drinking straws
• PBS biodegradable straws
• PHA-based sustainable straws
• Single-color drinking straws
• Two-color drinking straws
• Thin-wall straws
• High-volume beverage straws
• Food-service drinking straws
• Custom-length straw products

Advantages for Industrial Straw Manufacturers

One of the main advantages of the EX-65QS is the integration of the complete process into one coordinated production line. Instead of operating independent extrusion, haul-off and cutting machines, the full servo system coordinates these functions to create a continuous manufacturing process.

The 65 mm × 33:1 extrusion system provides a strong processing platform, while servo technology improves speed synchronization. Efficient far-infrared heating and automatic temperature control contribute to stable thermal conditions, and the controlled cooling section helps establish consistent product dimensions.

The result is a production system focused on repeatability, high output, simplified operation and reduced manual intervention. The system can also be configured around specific customer requirements, including material selection, straw dimensions, production speed and cutting configuration.

EXTRUTEX — Austrian Design, Manufacturing in China

EXTRUTEX develops extrusion and polymer-processing equipment based on Austrian engineering design principles, with manufacturing in China including production resources in Nanjing and Shanghai. This combination brings together engineering know-how, industrial manufacturing capability and practical extrusion experience.

The EX-65QS reflects this engineering approach by combining a robust extrusion platform with modern servo control and a complete downstream production system. The equipment can be configured according to the customer's target materials, product dimensions, output requirements and factory conditions.

Before final machine configuration, EXTRUTEX engineers can evaluate the target straw diameter, wall thickness, length, material grade, production speed and required cutting configuration. This ensures that the extrusion screw, die, cooling system, haul-off and cutting system are selected as one coordinated production solution.

EX-65QS Technical Summary

Complete Servo Straw Extrusion Solution

The EXTRUTEX EX-65QS Full Servo Straw Extrusion Line provides a complete high-speed solution for PP, PLA, PBS and PHA straw manufacturing. Its 65 mm × 33:1 screw, 30 kW servo drive, efficient far-infrared heating, automatic temperature control, controlled water cooling, servo take-up and synchronized cutting system are designed to work together as one production platform.

With production capability of approximately 400–1,800 pcs/min and an extrusion output of approximately 50–65 kg/h, the EX-65QS can support high-volume straw production while maintaining accurate control over product dimensions. The optional drying and feeding system is particularly useful for PLA production, while a chiller can help maintain stable cooling conditions.

For manufacturers requiring two-color products, the EX-65QS-2 provides a dedicated full servo two-color configuration with a 65 mm main screw, 33:1 L/D ratio and production speeds of approximately 500–830 pcs/min.

With Austrian design and manufacturing in China, including Nanjing and Shanghai, EXTRUTEX provides an integrated engineering platform for modern straw extrusion production. The final configuration can be adapted to the customer's material, straw dimensions, production speed and product requirements.