Hydraulic PU Spray Rig | Cold Storage Insulation
A mobile hydraulic PU spray package with heated hose delivery for site-applied cold-storage insulation and access-specific layouts.
High-Elevation Seamless Polyurethane Spraying for Massive Cold Stores
A mobile hydraulic PU spray package with heated hose delivery for site-applied cold-storage insulation and access-specific layouts.
A mobile hydraulic PU spray package with heated hose delivery for site-applied cold-storage insulation and access-specific layouts.
Hydraulic proportioning skid, heated hose, spray gun, drum feed and controls; vehicle, generator, access platforms, substrate preparation and site services are configuration interfaces.
Vertical lift, hose length and gun pressure require a complete loss calculation; hydraulic drive does not eliminate hydrostatic or friction losses. Coverage requires thickness, density, material use, overspray and actual spraying duty. A 2,550 m²/day area at 150 mm thickness is 382.5 m³/day before overspray; reconcile this with 14 kg/min maximum output and the supplied foam density. Foam fire classification and installation acceptance are separate from equipment delivery.
Concept illustration: Generated concept illustration for process discussion; not a photograph of the specified machine, a customer facility or a delivered project.
Material Flow and Working Principle
Substrate Preparation & Surface Priming
Concrete or metal building walls are dry-cleaned, and an airless polyurethane bonding primer is applied across masonry profiles to ensure interfacial tensile adhesion exceeds 0.2 MPa.
High-Power Anti-Crystallization Heating
Polyol and polymeric isocyanates are drawn directly from 200 L drums through 18 kW multi-stage cast-aluminum instant heaters, maintaining process temperatures at 45–55°C without crystal fouling.
High-Elevation Hydraulic Pumping
Coaxial hydraulic cylinders displace components at a fixed 1:1 volumetric ratio, sustaining 18.0 MPa fluid pressure across a 60-meter vertical hose umbilical.
High-Pressure Impingement Spraying
The components impinge inside a ceramic chamber at 120 m/s and atomize through a self-cleaning air-purge gun, applying progressive 30 mm layers that cream in 3 seconds to form a seamless 150 mm envelope.
In-Situ Core Inspection & Leveling
The rigid polyurethane foam cures within minutes, achieving compressive strengths over 180 kPa; robotic or manual scrapers level high spots to hold surface variance under 5 mm.
Model and Technical Parameters
Supplied HF-SPR60-MOB configuration references, pending original calibration and acceptance documents. Material, finished-part and project outcomes are separate from equipment ratings. Vertical lift, hose length and gun pressure require a complete loss calculation; hydraulic drive does not eliminate hydrostatic or friction losses. Coverage requires thickness, density, material use, overspray and actual spraying duty. A 2,550 m²/day area at 150 mm thickness is 382.5 m³/day before overspray; reconcile this with 14 kg/min maximum output and the supplied foam density. Foam fire classification and installation acceptance are separate from equipment delivery.
| Technical Parameter | HF-SPR60-MOB |
|---|---|
| Components | 2 Components (1:1 Fixed Volumetric Ratio) |
| Output Range (g/s) | 4.0 to 14.0 kg/min (Continuous spray output) |
| Mixing Ratio Range | 1:1 Fixed (Volumetric ratio) |
| Ratio Accuracy | ±1.0% (Under fluid pressure differential < 1.0 MPa) |
| Power Supply | 380V, 3-Phase, 50Hz (Optional 35 kW generator) |
| Working Pressure | 15.0 to 18.0 MPa (Hydraulic fluid delivery lines) |
| Tank Capacity (L) | Direct drum feed (Pneumatic transfer pumps from 200 L drums) |
| Weight | 1,450 kg (Main proportioning skid and hose reel) |
| Dimensions (L×W×H) | 2400 mm x 1500 mm x 1750 mm |
| Vertical Pumping Lift | Up to 60 meters (Vertical delivery hose run); Operating at 16.5 MPa line pressure; supplied reference pending original configuration or test records |
| Cured Foam Compressive Strength | ≥ 180 kPa (ASTM D1621 at 10% deformation); Core foam test specimen; supplied reference pending original configuration or test records |
| Daily Spraying Coverage | ≥ 2,500 m²/day (Single machine double-shift); 100 mm thickness envelope build; supplied reference pending original configuration or test records |
| Primary Heaters Heating Power | 18 kW (9 kW per individual component); Cast-aluminum instant heating blocks; supplied reference pending original configuration or test records |
Key Equipment Features
Hydraulic proportioning skid, heated hose, spray gun, drum feed and controls; vehicle, generator, access platforms, substrate preparation and site services are configuration interfaces.
60-Meter Vertical Delivery Lift
Supplied configuration reference: Continuous 18 MPa hydraulic pressure sustains atomization patterns on high cold room roofs without ground repositioning. Actual capability requires material and tooling validation.
≥ 180 kPa Compressive Strength
Supplied configuration reference: High-density closed microcellular matrix resists heavy structural wind and live maintenance loads. Actual capability requires material and tooling validation.
Anti-Crystallization Fluid Path
Supplied configuration reference: High-capacity instant inline heaters prevent isocyanate precipitation during cold-weather field operations. Actual capability requires material and tooling validation.
2,500 m² Daily Field Productivity
Supplied configuration reference: High-flow continuous delivery allows a single crew to coat over 2,500 m² of exterior wall area per shift. Actual capability requires material and tooling validation.
