Low-Pressure PU Foaming Machine | TPU Production
High-precision three-component pouring system for TPU production with ±0.3% metering accuracy
Discharge Flow Rate
240～720 kg/h
Mix Ratio (A:B:C)
100 : 15‑60 : 4‑15
Metering Accuracy
±0.3%
Temperature Control
±1°C
Product Overview
This machine manufactures linear block copolymer products composed of soft segments of oligomer polyol and hard segments of isocyanate chain extenders.
This PU pouring machine is purpose-built for manufacturing linear block copolymer products, including high-end shoe soles, industrial casters, lightweight automotive parts, sealing components, medical supplies, sports equipment, wear-resistant parts, flexible hoses, cables, airbags, waterproof membranes, and electronic packaging films. Advanced heat exchangers and buffer systems maintain stable ratios and precise temperature control for liquid raw materials (polyol, MDI, BDO), ensuring consistent reaction speed and highly uniform polymer molecular chains. Multi-point independent PID regulation with a three-layer tank structure keeps temperature deviation within ±1℃. The multi-tooth high-shear mixing head ensures full homogeneous blending, while a built-in vacuum degassing system eliminates macro bubbles for improved compactness and mechanical properties. The oven-style structure delivers high thermal efficiency, and PLC + touch screen central control enables intelligent production management.
Operation Workflow
Raw Material Loading & Preparation
Load polyol into Tank A (250 L), MDI into Tank B (120 L), and BDO/chain extender into Tank C (50 L); liquid crystal level gauges support automatic material feeding.
Temperature & Ratio Parameter Setting
Set multi-point independent PID temperature regulation with a three-layer tank structure (deviation ≤±1℃); adjust mix ratio via touch screen (A:B:C = 100:15-60:4-15).
High-Precision Metering & High-Shear Mixing
The servo-driven metering system (accuracy ±0.3%) dispenses precisely; the multi-tooth high-shear mixing head operates at 2,000-6,000 rpm for full homogeneous blending.
Vacuum Degassing & Pouring
The built-in vacuum degassing system eliminates macro bubbles; the discharge flow rate of 240-720 kg/h supports continuous pouring with a floating mechanical seal preventing backflow.
Technical Specifications
Standard configuration parameters for the TPU production pouring machine. Modular upgrades (e.g., 2 to 4 components) are available upon request.
| Technical Parameter | HF-LPM-TPU |
|---|---|
| Discharge Flow Rate | 240–720 kg/h |
| Raw Material Mix Ratio (A:B:C) | 100:15–60:4–15 (adjustable) |
| Tank Capacity (A / B / C) | A: 250 L / B: 120 L / C: 50 L |
| Total Motor Power | 20.5 kW |
| Mixing Head Rotational Speed | 2,000–6,000 rpm |
| Metering Accuracy | ±0.3% |
| Warranty Period | 1 year |
| Net Weight | 2,200 kg |
| Certifications | Confirm applicable documents for the quoted configuration |
| Brand Name | Haifeng |
Key Features & Advantages
Engineered for precision metering, temperature stability, and intelligent automation in TPU production.
Metering Accuracy ±0.3% for Consistent Molecular Structure
Advanced heat exchangers and buffer systems maintain stable ratios and precise temperature control for liquid raw materials (polyol, MDI, BDO), ensuring consistent reaction speed and highly uniform polymer molecular chains.
Multi-Point Independent PID Temperature Control
Three-layer oil‑jacket tank structure with temperature deviation ≤±1℃. Actual material temperature fluctuation at mixing head outlet ≤±1℃, reliably guaranteeing stable reaction activity and consistent product quality.
Excellent Mixing & Pouring Performance
Multi‑tooth high‑shear mixing head ensures full homogeneous blending. Floating mechanical sealing structure effectively prevents material backflow and ensures a clean, stable pouring process.
Bubble‑Free Finished Products with Superior Quality
Built‑in vacuum degassing system eliminates macro bubbles in molded parts, improving product compactness and mechanical properties for demanding applications.
Energy‑Saving Design with Modular Construction
Oven‑style structure delivers high thermal efficiency and remarkable power savings. Components can be flexibly expanded (e.g., 2‑component to 4‑component) to match changing market demands.
High Automation & Easy Operation
PLC + touch screen central control displays real‑time parameters (pressure, temperature, speed, flow rate, pouring, cleaning). Full‑process monitoring and fault alarm functions enable intelligent production management.
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