The PU-20F Full-auto Casting Machine is a high-precision industrial solution engineered for the automated pouring of polyurethane (PU) seal packing in filter element production. Specifically designed to eliminate manual errors, this machine ensures a leak-free, uniform seal that is critical for the performance and durability of automotive and industrial air and oil filters. By integrating intelligent dosing and pneumatic control, it guarantees consistent material distribution and structural integrity across every unit produced.
As a core component of the Leiman Filter Solution Group's advanced manufacturing line, the PU-20F optimizes the entire sealing process—from temperature-controlled mixing to precise X-Y axial positioning. Whether producing round, square, or custom-shaped seals, this machine enhances production throughput while significantly reducing waste. Its robust industrial design ensures stable, continuous operation, making it an indispensable asset for manufacturers aiming for global quality standards in the filtration industry.
| Overall Output | 5~15g/s | Mixture Ratio (A:B) | 100: 25~35 |
|---|---|---|---|
| Nozzle Shift Extent | 450mm | Max Quadric Size | 400×300(L×W)mm |
| Max Circular Size | Φ350mm | Travel Speed | 2-10m/min |
| Overall Power | 8kw | Power Supply | 380V/50Hz |
| Machine Weight | 1000kg | Machine Dimensions | 1500×2000×2100mm(L×W×H) |
High-accurate flow-control pumps and digital displays ensure stable measurement and consistent PU mixing ratios.
From automatic constant temperature preservation to pneumatic nozzle switching, reducing manual labor and errors.
The X-Y axial revolving table supports round, square, and special-shaped seal packs for various filter types.
Computer-screen managed temperature, pressure, and pouring volume for repeatable high-quality output.
Innovative three-position switching (pouring, inversing, flushing) prevents lagging and ensures clean operation.
Stainless-steel three-layer bucket construction designed for heavy-duty, continuous industrial production cycles.
Automatic temperature-preservation and stirring for PU components to ensure material homogeneity.
Digitally-displayed gage units allow real-time monitoring of pouring volume and pressure.
Precise flow-inversing structures prevent bubbles and uneven thickness in the PU seal.
Integrated program control handles the sequence from pouring to automatic nozzle flushing.
Adjustable workbench settings to accommodate different filter element sizes and geometries.
Exclusive 24/7 lifetime service providing technical assurance for uninterrupted production.
| Comparison Metric | Manual Casting Process | PU-20F Automated System |
|---|---|---|
| Production Efficiency | Low / Labor Intensive | High / Fully Automated |
| Sealing Consistency | Variable / Human Error | High Precision / Repeatable |
| Material Waste | Significant (Overflow/Leaks) | Minimal (Precision Dosing) |
| Labor Costs | High (Multiple Operators) | Low (Single Supervisor) |
| Product Defect Rate | Moderate to High | Extremely Low |
The PU-20F is primarily used to automatically pour polyurethane (PU) seals for automotive air filters, oil filters, and various industrial filtration elements, ensuring a perfect, leak-proof seal.
It utilizes high-precision flow-control pumps, a constant temperature-preservation system, and an advanced nozzle design to ensure uniform thickness, tight adhesion, and zero leakage.
Yes, it features an X-Y axial revolving workbench that can accommodate round, square, and custom-figured seal packs, with adjustable casting parameters for various sizes.
The nozzle features an automatic three-position switching system for pouring, flow inversing, and flushing, which eliminates advancing/lagging and prevents material buildup.
The design mixture ratio is A:B = 100: 25~35, which is digitally controlled to maintain the chemical properties and structural strength of the polyurethane seal.
Leiman Filter Solution Group provides exclusive lifetime 24/7 professional technical support and service to ensure long-term operational reliability for all direct customers.