Blown Film Making Machine Guide & Solutions

Choosing a blown film machine that truly meets production needs is not simply a matter of checking a few boxes, but rather finding the optimal balance between raw material compatibility, plasticizing efficiency, and machine fault tolerance. Dexiang is a manufacturer with many years of practical experience in this field, producing high-pressure and low-pressure ultra-thin blown film machines. Their secret lies in using nitrided 38CrMoAl alloy steel screws. When processing LDPE, HDPE, and LLDPE materials, these machines achieve 15% higher plasticizing uniformity than the industry average. More importantly, they can achieve film thickness control from 0.004 to 0.1 millimeters – perfectly suited for both civil and industrial applications, such as food packaging or garbage bags.

How to Choose a Blown Film Machine that Meets Production Needs

Choosing equipment is not just a game of parameter comparison. You must start from the actual production scenario and work backward. For small and medium-sized food packaging factories, energy consumption and the ease of operation of fully automatic equipment should be the primary considerations. Large industrial packaging production lines, on the other hand, need to prioritize film thickness accuracy and stable continuous operation. We conducted a comparative test: under the same raw materials and process settings, Dexiang's blown film machine achieved an extrusion rate of 45 kg/hour – far higher than ordinary equipment. Moreover, it can control the film width error within ±2 millimeters, far superior to the industry standard of ±5 millimeters.

Dexiang's customized services also help address these specific pain points. For biodegradable film manufacturers, they can adjust the screw compression ratio and die head structure to adapt to the plasticizing characteristics of biodegradable materials. For food packaging companies, they can add a dedicated drying system to control the raw material moisture content below 0.3% – thus preventing water mist marks from damaging the film. A packaging factory in Zhejiang told us that after switching to Dexiang's customized solution, their film transparency defect rate dropped from 8% to 0.5%, and production efficiency increased by 30%. This is a truly revolutionary change.

Solving Common Blown Film Production Problems

Most production failures do not stem from poor equipment quality, but rather from a mismatch between the machine and the process flow. Based on thousands of customer cases, here are three common problems you can quickly solve with the right equipment features and process adjustments:

• 1. Poor film opening: In addition to adding anti-blocking agents, Dexiang's machines utilize a precise temperature control system to lower extrusion temperature and are equipped with a labyrinth-type air ring for uniform cooling. This reduces film sticking at the source – more effectively than traditional equipment, resulting in a 40% increase in efficiency.
• 2. Uneven thickness: Thanks to the hard chrome plating of the die head and the adjustable air ring, you can adjust the die gap and airflow distribution, and calibrate thickness deviations within 10 minutes. No more wasting time on trial and error.
• 3. Insufficient heat sealing performance: Optimized stretching ratio and dew point control result in more uniform film molecular orientation – ideal for high-frequency heat sealing applications such as vacuum bags.

Why Dexiang Stands Out in the Blown Film Equipment Industry

Dexiang's true advantage lies in directly linking equipment performance to production efficiency. With proper maintenance, they can last 8 to 10 years, far exceeding the industry average of 5 to 6 years. Furthermore, the entire machine uses well-known brands of inverters and torque motors, resulting in smoother winding, more stable speed, and reduced roll change time to just 3 minutes per cycle.

Authoritative certifications also provide peace of mind. The equipment has obtained ISO9001 quality system certification, and the electrical components comply with CE standards – so you can operate safely and compliantly in industrial environments. Their after-sales team is also highly reliable: providing on-site commissioning, process training, and troubleshooting support within 72 hours. No more being left helpless when problems arise.

Take the next step to optimize your film production line

Whether you are building a new film factory, purchasing your first set of equipment, or upgrading your existing production line, Dexiang can provide comprehensive services from start to finish – equipment selection, customized adjustments, after-sales service, and maintenance. Visit the Dexiang blown film machine product page today to get your customized equipment solution.