QUANZHOU, CHINA December 12th,2025. For manufacturers in emerging markets such as Africa, South America, and Southeast Asia, the stable operation of sanitary napkin production lines is directly related to production efficiency and product quality. However, due to factors such as unstable local power supply, uneven raw material quality, and lack of professional technical personnel, production lines often encounter various problems, which affect normal production and cause economic losses. As a professional manufacturer with 8+ years of experience in hygiene product equipment, WOMENG Intelligent Equipment summarizes the most common problems of sanitary napkin production lines and provides practical solutions, helping manufacturers in emerging markets solve operational troubles efficiently.
In the process of communicating with a large number of overseas clients, WOMENG found that the common problems of sanitary napkin production lines in emerging markets are highly similar, mostly concentrated in equipment operation, product quality, and environmental adaptation. "Many clients lack professional maintenance experience, and even small problems may lead to production suspension," said a senior technical engineer at WOMENG. "Mastering the basic troubleshooting methods can greatly reduce the impact of problems on production. At the same time, choosing equipment that is adaptable to local conditions is also the key to reducing fault occurrence."
Common Problems of Sanitary Napkin Production Lines & Corresponding Solutions
1. Uneven Absorbent Core Distribution: Affects Product Quality
Problem Performance: The absorbent core of the produced sanitary napkins is unevenly distributed, with local thickening or thinning, which reduces the water absorption capacity of the product and may cause side leakage. This problem is common in both semi-automatic and fully automatic production lines.
Causes: On the one hand, it is due to the uneven thickness of the raw materials (such as absorbent paper and non-woven fabric); on the other hand, it is caused by the unstable operation of the production line's material feeding mechanism or the improper adjustment of the pressing roller pressure.
Solutions: First, check the raw materials. It is recommended to choose raw materials with stable quality, and if the local raw materials are uneven, you can use a pre-screening device to filter out unqualified raw materials. Second, adjust the feeding mechanism: for WOMENG production lines, you can follow the operation manual to adjust the feeding speed and the tightness of the material guide roller to ensure uniform feeding. Finally, check the pressing roller: if the pressure is uneven, adjust the pressure regulating valve of the roller to make the pressure consistent on both sides. If the roller is worn, replace the roller in time (WOMENG provides universal standard rollers that can be quickly replaced).
2. Unstable Production Speed & Frequent Shutdowns: Reduces Efficiency
Problem Performance: The production line suddenly slows down during operation, or shuts down automatically frequently, which seriously affects production efficiency. This problem is particularly prominent in areas with unstable power supply.
Causes: The main reasons include unstable voltage, overheating of the motor, or blockage of the transmission mechanism. In emerging markets, unstable power supply is the primary factor leading to this problem; in addition, long-term continuous operation without regular maintenance can also cause wear of transmission parts and lead to failures.
Solutions: For voltage instability, it is recommended to configure a voltage stabilizer (WOMENG can provide matching voltage stabilizer recommendations according to the power of the production line) to ensure that the input voltage is within the range required by the equipment (110V/220V/380V, customizable). For motor overheating, stop the machine immediately to cool down, check whether the heat dissipation port of the motor is blocked, and clean the dust in time; if the motor still overheats frequently, contact the after-sales team to check the motor status. For transmission mechanism blockage, regularly add lubricating oil to the gears and chains (WOMENG's operation manual clearly specifies the lubrication cycle and oil type), and check whether there are foreign objects stuck in the transmission parts, and clean them in time.
3. Poor Sealing of Product Edges: Causes Leakage & Poor Quality
Problem Performance: The edges of the produced sanitary napkins are not sealed tightly, with gaps or loose edges, which easily lead to leakage during use and affect product sales.
Causes: This is mainly related to the temperature and pressure of the sealing device. If the sealing temperature is too low, the material cannot be fully fused; if the temperature is too high, the material will be scorched; if the pressure is uneven, the sealing effect will be inconsistent. In addition, the wear of the sealing roller will also lead to poor sealing.
Solutions: First, adjust the sealing temperature and pressure according to the material type. WOMENG's production lines are equipped with digital temperature and pressure control systems, which can be precisely adjusted. For example, for non-woven fabrics, the recommended sealing temperature is 120-150℃, and the pressure can be adjusted according to the material thickness. Second, check the sealing roller: if there is wear or damage, replace the roller in time. WOMENG provides original spare sealing rollers, which can be delivered to overseas markets quickly through the global spare parts supply network. Third, ensure that the material feeding is smooth, and avoid the influence of uneven material feeding on the sealing effect.
4. Material Jamming in the Production Process: Affects Continuity
Problem Performance: Raw materials such as non-woven fabrics and PE films are jammed in the feeding, cutting or folding process, resulting in production interruption. This problem is more common in semi-automatic production lines that rely on manual feeding.
Causes: The main reasons are improper manual feeding angle, uneven tension of the material roll, or excessive hardness of the raw material. In addition, the deviation of the material guide mechanism will also cause the material to deviate and get stuck.
Solutions: For semi-automatic production lines, strengthen the training of operators to ensure that the feeding angle is correct and the speed is consistent with the production line. For material roll tension problems, adjust the tension controller of the material roll to make the tension uniform. For raw materials with excessive hardness, it is recommended to choose materials with appropriate softness, or pre-process the raw materials (such as softening treatment). For the deviation of the material guide mechanism, adjust the guide roller to make the material move along the correct track. WOMENG's production lines are equipped with deviation correction devices, which can automatically adjust the material position and reduce jamming problems.
5. Abnormal Noise of the Production Line: Indicates Potential Failures
Problem Performance: The production line makes abnormal noises (such as squeaking, knocking) during operation, which is usually a signal of potential failures. If not handled in time, it may lead to more serious equipment damage.
Causes: Abnormal noise is mostly caused by loose fasteners, wear of transmission parts (such as gears, bearings), or lack of lubrication. In addition, the imbalance of the rotating parts may also cause vibration and noise.
Solutions: First, stop the machine immediately to check the equipment. Check whether the bolts, nuts and other fasteners are loose, and tighten them in time. Second, check the transmission parts: if the gears or bearings are worn, replace them with new parts; if there is a lack of lubrication, add the specified lubricating oil. For the imbalance of rotating parts, contact professional technical personnel to calibrate. WOMENG's after-sales team can provide remote guidance for noise troubleshooting, and if necessary, send engineers to the site for maintenance.
Preventive Measures: Reduce Faults from the Source
In addition to timely solving existing problems, taking preventive measures is more important to ensure the stable operation of the production line. The technical engineer of WOMENG put forward three key suggestions: First, do a good job in daily maintenance. Follow the operation manual to conduct regular inspections and maintenance (such as cleaning, lubrication, and fastener tightening) to find and solve potential problems in time. Second, choose equipment that is adaptable to local conditions. For example, WOMENG's sanitary napkin production lines are designed with voltage customization, dust-proof and anti-interference functions, which are suitable for the harsh working environment in emerging markets. Third, strengthen the training of operators and maintenance personnel. WOMENG provides free on-site training and Chinese-English bilingual operation and maintenance manuals to help clients' teams master basic operation and troubleshooting skills.
Up to now, WOMENG has provided technical support and maintenance guidance for hundreds of sanitary napkin manufacturers in emerging markets, helping them solve various production line problems and improve production efficiency. "We not only provide high-quality equipment, but also build a comprehensive after-sales service system to solve the worries of overseas clients," said the technical engineer. "For any problems encountered in the operation of the production line, clients can contact our 24/7 online technical support team, and we will respond and provide solutions within the shortest time."
About WOMENG Intelligent Equipment
Founded in 2016, Quanzhou WOMENG Intelligent Equipment Co., Ltd. is a professional manufacturer focusing on the R&D, production, and sales of intelligent equipment for hygiene products. The company's main products include semi-automatic/fully automatic sanitary napkin production lines, diaper production lines, and customized hygiene product production solutions. With rich export experience and professional technical strength, WOMENG is committed to providing cost-effective, stable, and easy-to-use equipment for global buyers, especially those in emerging markets. The company has passed CE and ISO certifications and has independent import and export rights, ensuring the quality and compliance of products and services. In addition, WOMENG has a professional after-sales team and a global spare parts supply network, providing comprehensive technical support and maintenance services for overseas clients.
For more information about WOMENG's sanitary napkin production lines and technical support services, please visit [Website URL] or contact via WhatsApp: [Phone Number] / Email: [Email Address].
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