The SAP Sheet Making Machine is an industrial equipment designed for the continuous production of highly absorbent composite materials. Its core function is to combine fluff pulp, SAP superabsorbent polymer, and non-woven fabrics, airlaid paper, and other materials into a multi-layered structure with precise quantitative forming. It is widely used in the manufacturing of the core layer of sanitary products. This equipment is typically used as a front-end or core module in diaper making machine production systems, directly determining the thickness uniformity, gram weight accuracy, and absorption performance stability of the absorbent core layer. The entire machine utilizes fully automatic control logic, enabling automatic material metering, uniform spreading, precise compounding, and stable winding, meeting the needs of continuous, large-scale, and highly consistent production. It is suitable for industrial scenarios requiring high absorption performance and structural stability.

1. High-Precision Spreading

The SAP Sheet Making Machine utilizes a servo metering and closed-loop control system in the absorbent material spreading process, allowing for stable control of SAP spreading quantity within the range of 20–120 g/m², with a single-layer spreading deviation controlled within ±2.5%. This level of precision is crucial for the consistency of the absorbent core, especially under the high-speed production conditions of diaper making machines, significantly reducing leakage or absorption failure problems caused by uneven local basis weight.

2. Stable Operating Speed

While ensuring spreading accuracy, the equipment can maintain a stable operating speed of 20–100 m/min for extended periods, with a maximum design speed of up to 120 m/min. Through multi-section tension control and independent drive structures, the SAP Sheet Making Machine maintains stable material flow at high speeds, preventing SAP shifting, accumulation, or layering.

3. Multi-Layer Structure Composite

This machine supports a 5-layer composite design, allowing for flexible combination of materials such as fluff pulp, SAP, non-woven fabric, and airlaid paper to achieve different absorbent structure solutions. Composite accuracy directly affects the rewet rate and core stability.  Through optimization of the pressing and guiding systems, the equipment controls the interlayer displacement within ≤1 mm, ensuring that the final SAP sheet does not delaminate or deform during subsequent processing in the diaper making machine.

4. Intelligent Winding System

The winding section supports a maximum winding diameter of Φ1200 mm and is equipped with an automatic tension adjustment and edge alignment system, ensuring flat and neat winding of the finished SAP sheet. Tension fluctuations are controlled within ±3%, reducing problems such as loose winding and edge collapse during storage, transportation, and subsequent processing, providing reliable support for continuous feeding to the diaper making machine.

5. Industrial-Grade Control

The entire machine uses an industrial-grade PLC and touch-screen human-machine interface. Key parameters such as spreading quantity, line speed, and tension values can be monitored and recorded in real time. The system supports continuous 24-hour stable operation, adapting to large-scale production environments. For hygiene product production lines centered around diaper making machines, this control system helps unify process parameters, reduce the risk of human intervention, and improve overall yield.

1. Diaper Core Layer

In diaper production, the SAP Sheet Making Machine is primarily used to manufacture high-absorbent core layers. The finished product can be directly fed into the Diaper Making Machine for cutting, shaping, and lamination. Stable SAP distribution significantly improves the absorption capacity and water retention per unit area, reducing the probability of leakage, and is particularly suitable for mid-to-high-end diaper products with high absorption performance requirements.

2. Adult Care

Adult incontinence products typically require higher absorption capacity and structural strength. This equipment can achieve a core layer structure with higher liquid absorption by increasing the SAP spreading weight and using multi-layer lamination. When used in conjunction with a Diaper Making Machine, it can support thick core or high gram weight solutions to meet the long-term use needs of adult care products.

3. Sanitary Napkin Materials

In the manufacturing of sanitary napkin cores, the SAP Sheet Making Machine can precisely control the gram weight distribution of the thin absorbent layer, avoiding localized thickening or uneven absorption. By adjusting the spreading parameters, SAP sheets of different absorption levels can be produced, adapting to various sanitary napkin machine systems.

4. Medical Absorbent Pads

Medical-grade absorbent pads have strict requirements for absorption speed and stability. This equipment can form a uniform absorbent structure through low-deviation spreading and stable lamination, suitable for disposable nursing pads, post-operative pads, and other products. It can operate independently or be integrated with relevant Diaper Making Machine structural modules.

5. Industrial Customized Materials

In addition to hygiene products, this equipment can also be used in the manufacturing of other composite materials requiring liquid absorption functions, such as industrial absorbent pads and laboratory absorbent layers. By changing the raw material combination and parameter settings, the SAP Sheet Making Machine can be extended to various non-traditional Diaper Making Machine application scenarios.

Q: Is the SAP Sheet Making Machine required to be used in conjunction with a Diaper Making Machine?

A: This equipment can be used as a core front-end module connected to a Diaper Making Machine, or it can operate independently to produce SAP sheets. For customers with existing main production lines, integrated use improves efficiency; for multi-line feeding or customized needs, independent operation offers greater flexibility.

Q: Can the SAP dispensing amount be quickly switched between different specifications?

A: Yes. The equipment uses parametric control to adjust the SAP dispensing amount online, without needing to replace core mechanical structures.  Switching between different gram weight specifications usually takes only 5–10 minutes, suitable for multi-model Diaper Making Machine production on the same line.

Q: How adaptable is the equipment to raw materials?

A: The SAP Sheet Making Machine is compatible with various SAP particle sizes and fluff pulp types, with flexible requirements for material flowability.  It uses flow guidance and anti-clogging designs to reduce dust accumulation and has good compatibility with variations in raw material batches.

Q: Does prolonged high-speed operation affect accuracy?

A: Within the rated speed range, the equipment is designed for continuous operation, and the spreading accuracy and tension control will not significantly degrade due to prolonged operation. This is particularly crucial for synchronous operation with a Diaper Making Machine.

Q: Do you support OEM/ODM customization?

A: Yes. We can customize the spreading width, layer configuration, and control logic based on the customer's Diaper Making Machine line speed, width, and product structure requirements to match the overall production plan.