PU Cast Unit for PU Seals
Precision casting system for industrial polyurethane seals, supporting MOCA/BDO dual formulas with small-flow precise metering
Product Overview
Specially designed for large-scale production of industrial polyurethane seals, widely suitable for casting of general seals in industrial equipment, hydraulic systems, construction machinery.
This PU cast unit is purpose-built for the precision production of industrial polyurethane seals. The 1A1B independent temperature control system supports one-key switching between MOCA high-strength and BDO hydrolysis-resistant dual formulas, enabling a single machine to cover the production process of various seals. Dynamic full-range ultra-high precision metering ensures products without bubbles and burrs, delivering stable sealing performance without leakage. The small flow capability is precisely tailored for small sealing molds, resulting in low raw material loss and effectively improving product yield. With simple and stable operation, the machine is ideally suited for small-batch, multi-specification flexible seal production, meeting the core production needs of static/dynamic sealing, oil resistance, wear resistance a
Operation Workflow
Raw Material Preparation
Prepare CPU prepolymer and chain extender (MOCA or BDO) according to the target mix ratio. Select the appropriate formula based on seal application requirements (static/dynamic, oil resistance, etc.).
Tank Loading & Independent Temperature Setting
Load prepolymer into Tank A and chain extender into Tank B. The 1A1B independent temperature control system allows precise setting: Tank A at 30–80°C, Tank B according to selected formula (MOCA: 90–115°C; BDO: 25–50°C).
Vacuum Defoaming
Activate the vacuum defoaming system to achieve vacuum level ≤-0.095MPa, thoroughly removing bubbles to ensure bubble-free seal products with stable sealing performance.
Precision Metering, Mixing & Small-Flow Casting
The PLC-controlled dynamic metering system (accuracy ≤±0.3% full range) dispenses materials precisely. The mixing head operates at 8000–12000 r/min for homogeneous blending. The pouring rate is precisely controlled within 20–500 g/s, specially designed for small sealing molds to minimize raw material loss.
Request a Customized PU Seal Casting Solution
Get a QuoteTechnical Specifications
Standard configuration parameters for the PU seal cast unit. Customizations are available upon request.
| Technical Parameter | HF-CPUE-1A1B-Seal-PU |
|---|---|
| Pouring Rate | 20～500 g/s |
| Raw Material Ratio | MOCA: 100:8~13; BDO: 100:3~6 |
| Tank Capacity | 50 / 100 / 150 L |
| Mixing Head Speed | 8000～12000 r/min |
| Dynamic Metering Accuracy | ≤±0.3% (Full range) |
| Tank Configuration | 1A1B two-component independent temperature control |
| Material Temperature Control | Tank A: 30~80℃; Tank B: MOCA(90~115℃)/BDO(25~50℃) |
| Vacuum Defoaming | Vacuum ≤-0.095MPa |
| Cleaning System | Automatic circulation + air purge cleaning |
| Power | 5.5～7.5 kW |
| Control System | PLC + touch screen + multi-formula storage |
| Applicable System | CPU Prepolymer + MOCA/BDO Chain Extender |
| Warranty | 1 year |
| Certifications | CE, ISO9001 |
Key Features & Advantages
Engineered for precision, flexibility, and efficiency in multi-specification seal production.
One-Key MOCA/BDO Dual Chain Extender Switching
Supports one-key switching between MOCA and BDO dual chain extenders, enabling a single machine to cover the production process of various seals.
Dynamic Full-Range Ultra-High Precision Metering
Delivers products without bubbles and burrs, ensuring stable sealing performance without leakage across the full metering range.
Small Flow Precision for Sealing Molds
The small flow capability (20–500 g/s) is precisely tailored for small sealing molds, resulting in low raw material loss and effectively improving product yield.
1A1B Independent Temperature Control
Simple and stable operation with independent temperature control for each component, ideally suited for small-batch, multi-specification seal flexible production.
Vacuum Defoaming (≤-0.095MPa)
Ensures bubble-free products with consistent density and mechanical properties, critical for reliable sealing performance in demanding applications.
Intelligent PLC Control with Multi-Formula Storage
PLC + touch screen interface with multiple formula memory simplifies operation, reduces errors, and enables rapid changeovers between formulations for different seal types.
Enhance Your Seal Production Line with Precision Casting
Our engineering team specializes in flexible multi-specification seal production. Contact us to discuss your specific seal types, formula requirements, and production capacity needs.
Application Scenarios
Specially designed for large-scale production of industrial polyurethane seals, widely suitable for casting of general seals in industrial equipment, hydraulic systems, construction machinery. Compatible with MOCA high-strength and BDO hydrolysis-resistant dual formulas, meeting the core production needs of static/dynamic sealing, oil resistance, wear resistance and leakage prevention, suitable for precision manufacturing of multi-specification small seals.
Ready to discuss your project?
Request Specs & PricingComplete Your Production Line
Integrate the product with our full range of auxiliary equipment for a turnkey polyurethane processing system.
Epoxy Pourer for Printing Roller
Low Pressure Polyurethane Machine
Hydraulic Seal PU Casting Machine
Elastomer Polyurethane Machine
Monomer Cast MC Nylon Casting Machine
Elastomer Polyurethane Machine
Roller PU Casting Machine for Cold Rolling
Elastomer Polyurethane Machine