Differences and Analysis Between Pneumatic and Hydraulic Sprayers

                               In-Depth Analysis of Pneumatic and Hydraulic Spray Machines: From Model Specifications to Application Scenarios

As core equipment for spraying polyurethane, polyurea and similar materials, spray machines are categorised into pneumatic and hydraulic types based on their drive mechanisms. Significant differences exist between models in material compatibility, power performance and suitable applications, necessitating selection based on specific requirements.

Pneumatic spray machines are characterised by their portability and flexibility, making them suitable for small to medium-sized projects.

For instance, the CNMC-E3 supports polyurethane spraying exclusively, featuring a multi-voltage design (110V/220V/380V), 7.5kW heating capacity, material output of 2-12kg/min, and maximum output pressure of 17MPa. Its pneumatic booster unit is compact and lightweight, equipped with multiple leakage protection mechanisms and simple operation, making it particularly suitable for small to medium-scale construction such as building insulation.

The Winterboy-A25 offers greater versatility, capable of spraying both polyurea and polyurethane. It requires an air supply of 0.5-0.8MPa and ≥1.2m³/min, also utilising pneumatic drive. This makes it suitable for scenarios requiring both waterproofing and insulation, such as roof waterproofing and small cold storage insulation.

Hydraulic sprayers are renowned for their stable high pressure and robust power, making them suitable for large-scale projects.

The CNMC-500L prioritises high precision, featuring a lateral pressure design for more uniform spraying. With a maximum output pressure of 35MPa and compatibility with both 220V and 380V three-phase voltages, it is widely used in applications demanding high spraying accuracy, such as tank corrosion protection and water park installations.

Whether selecting pneumatic or hydraulic sprayers, comprehensive consideration of material type (polyurethane/polyurea), project scale (small/large), and voltage requirements is essential to maximise equipment performance.