Choosing the Right Straw Extrusion Machine: 50mm vs 65mm Screw Comparison

When purchasing a high-quality straw extrusion machine, the most crucial decision to make is whether to opt for a 50mm or 65mm main screw extruder.

This guide is designed to help you understand the technical differences and make a good choice whether you want to enter straw manufacturing or are already a straw making machine manufacturer.

🧩 1. Purpose

This guide compares the 50 mm and 65 mm main screw extruders, focusing on:

• Production capacity

• Suitable straw diameter range

• Cost-efficiency

• Setup complexity

• Practical considerations for straw manufacturers

This article will guide you in selecting the ideal plastic straw machine for your factory, whether you're manufacturing traditional PP straws, biodegradable PLA straws, or require adjustable output volume.

⚙️ 2. Core Technical Comparison

Both options are compatible with plastic straw-making machines as well as PLA straw-making machines. The right screw size ensures optimized performance of your drinking straw extrusion machine.

🥤 3. Recommended Straw Diameter Range

✅ 50 mm Screw—Best for:

✅ 65 mm Screw—Best for:

For regular drinking straw production (3–8 mm), a 50 mm screw is ideal. For manufacturers producing thick or jumbo straws, opt for a 65 mm screw.

📉 4. Pros & Cons Summary

🔹 50 mm Screw Extruder

Pros:

• Lower energy and material use

• Ideal for startups or small/medium batches

• Easier maintenance and operation

• Fast ROI

Cons:

• Limited capacity for large-diameter straws

• May bottleneck in high-volume scenarios

🔸 65 mm Screw Extruder

Pros:

• Higher output capacity

• Better for large-diameter or multi-line production

• More scalable for mass production

Cons:

• Higher energy costs

• More complex setup and control

• Slower material changeover

• Higher initial investment

For those concerned about plastic straw making machine price, the 50 mm screw offers a more budget-friendly entry point, especially for first-time investors.

🔍 5. Selection Guide Based on Use Case

Whether you’re producing with a PP straw making machine or exploring newer biodegradable straw machines, aligning your machine choice with your production plan is crucial.

📦 6. Conclusion

For over 80% of plastic straw machine users targeting 3–8 mm diameter straws, the 50 mm screw offers the most balanced, efficient solution. As your production scales, the 65 mm becomes the preferred choice—especially for biodegradable straw making machine setups or multi-line output systems.

🔧 Looking to set up your own straw production line? We’re a trusted straw making machine manufacturer with full solutions, including:

• PLA straw making machines,

• PP straw making machines,

• Flexible straw bending machine,

• Individual straw packing machine,

• U-shaped straw packing machine

• Full consulting on equipment sizing and output optimization

📩 Contact us now to get a custom quote or consultation today!