Low-Pressure PU Foaming Machine | Safety Shoes
Low-pressure PU foaming system for mass production of safety footwear with ultra-precise dosing and dual-density integrated molding
±0.3% Accuracy
Ratio precision
IoT Ready
Remote monitoring
30% Energy Save
vs.conventional
2-6 Components
Flexible config
Product Overview
Specially developed for mass production of labor protection safety footwear. Realizes one-step casting and molding of PU midsole & outsole for anti-impact, anti-penetration safety shoes.
This low-pressure PU foaming machine is developed for mass production of protective safety footwear, realizing one-step casting molding of PU midsole and outsole for impact-resistant and anti-penetration safety shoes. The highly automated line requires only 2–3 operators, with an optional robotic manipulator for automatic feeding and pouring. Raw material dosing accuracy reaches ±0.3%, guaranteeing stable hardness, abrasion, and impact resistance batch by batch. The low-pressure energy-saving design reduces wear of core spare parts for easier maintenance and longer service life. Built-in dual-density integrated molding is the key configuration for safety shoe mass orders. Compatible with solvent-free and water-blown PU formulas, it supports low-VOC closed-loop production meeting global environmental standards. It also produces PU soles for sandals, slippers, and beach shoes.
Operation Workflow
Raw Material Preparation
Prepare PU raw materials at the target mix ratio (A:B = 100:35-85); select the formulation per safety shoe sole requirements (hardness, abrasion, impact resistance).
Tank Loading & System Setup
Load materials into the 200 L tank system; configure the PLC control system for the specific safety shoe model, with an optional robotic manipulator for automated feeding and pouring.
Ultra-Precise Dosing & Low-Pressure Mixing
The PLC-controlled dosing system dispenses precisely; mixing head speed is adjustable at 4,000-10,000 r/min (pouring) or 10,000-18,000 r/min (injection), with dosing rate of 30-150 g/s.
Dual-Density Casting & Molding
The mixed PU material is cast into safety shoe molds for one-step midsole and outsole molding; dual-density integrated molding ensures stable quality for large-volume orders.
Technical Specifications
Standard configuration parameters for the safety shoe low-pressure PU foaming machine. Customizations including multi-component systems and robotic manipulator options are available.
| Technical Parameter | HF-LPM-1A1B-F |
|---|---|
| Dosing Rate | 30~150g/s |
| Mix Ratio | A:B = 100:35~85 |
| Tank Capacity | 200L |
| Power | 12kW |
| Mixing Head Speed | Adjustable range: 4,000 ~ 18,000 rpm |
| Dosing Accuracy | ±0.3% |
| Weight | 1000kg |
| Warranty | 1 Year |
| Certification | Confirm applicable documents for the quoted configuration |
| Brand | Haifeng |
Key Features & Advantages
Engineered for automation, precision, and production flexibility in safety footwear manufacturing.
High-Degree Automatic Operation
Only 2–3 operators are required for the full production cycle. Optional automatic robotic manipulator is available for unmanned feeding and pouring, with all running speeds adjustable for flexible production.
Ultra-Precise Raw Material Dosing Control
Dosing accuracy within ±0.3% ensures consistent hardness, abrasion resistance and impact resistance of finished safety shoe soles batch by batch.
Low-Pressure Energy-Saving Design
Core wearing parts suffer less abrasion, bringing easy daily maintenance and extended service life, reducing overall operating costs.
Professional Dual-Density Integrated Molding
The core configuration for safety shoe production, stabilizing finished product quality for large-volume orders with one-step midsole and outsole molding.
Low-VOC Eco-Friendly Production
Matches solvent-free and water-blown PU formula system, supporting low-VOC closed-loop production to meet international environmental emission standards.
Flexible Multi-Component Customization
Supports 2–6 components customizable configuration, enabling diverse formulation options for different footwear applications from safety shoes to daily footwear.
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