ARROW MIXING PRODUCTS

Arrow air-powered propeller mixers typically feature a 1/4 in male NPT inlet for compressed air supply, a clamp or stand mounting system, and either a 3-blade or 4-blade propeller. Models such as the A-12, A5-18, G-12, A5-12, G-24, A-24, 750-12, and G-18 share these characteristics. The blade count affects flow pattern and shear; 3-blade propellers generally produce higher flow with lower shear, while 4-blade propellers provide more shear for dispersing or suspending solids. Mounting type determines how the mixer attaches to tanks, drums, or laboratory stands. When specifying, confirm the model number, inlet size, blade count, and mounting configuration to match your application.

Both the Arrow Model A-12 and Model G-12 are air-powered propeller mixers with a 1/4 in male NPT inlet, clamp/stand mounting, and a 4-blade propeller. The primary difference lies in the specific model designation, which may correspond to variations in shaft length, propeller diameter, or gear ratio. Without manufacturer documentation, the exact dimensional differences are not specified here. For replacement or new installations, use the model number stamped on the existing unit or consult the original specification sheet. 3G Electric can provide model-specific data on request.

Air-powered Arrow mixers do not use electric motors, which reduces the risk of ignition from electrical sparks. This makes them suitable for use in areas where flammable vapors or dust may be present, provided the compressed air supply is clean and the mixer materials are compatible with the process fluid. However, the user is responsible for verifying that all wetted materials, seals, and lubricants are appropriate for the specific hazardous classification and chemical exposure. Arrow mixers are not certified as explosion-proof by themselves; they are air-driven, which inherently avoids electrical ignition sources. Always follow local safety codes and site-specific requirements.

Arrow air-powered propeller mixers are designed for low-to-medium viscosity fluids. Typical applications include blending, stirring, suspending, and dispersing in laboratory vessels, small tanks, and drums. They are not intended for high-viscosity materials, heavy slurries, or dry powders. For viscous fluids, a gear-drive or direct-drive electric mixer with higher torque may be required. The 3-blade and 4-blade propeller options allow adjustment of flow and shear to suit the fluid. If you are unsure about compatibility, provide the fluid viscosity, specific gravity, and batch size to 3G Electric for a model recommendation.

To select a replacement propeller or shaft for an Arrow mixer, identify the mixer model number and the existing propeller's blade count, diameter, and bore size. Arrow propellers are available in 3-blade and 4-blade configurations, and shafts vary in length and diameter by model. The model number is typically stamped on the mixer housing or on a nameplate. If the original markings are illegible, measure the shaft diameter, shaft length, and propeller diameter, and note the mounting type. 3G Electric can cross-reference these dimensions to the correct Arrow part number and provide a quotation.

Arrow air-powered propeller mixers require a compressed air supply connected to the 1/4 in male NPT inlet. The required air pressure and flow rate depend on the specific model and the desired mixing intensity. Typical laboratory models operate at pressures up to 100 psi, but always refer to the manufacturer's specifications for the exact model. The air supply should be clean, dry, and lubricated if the mixer's air motor requires lubrication. A filter-regulator-lubricator unit is often recommended to protect the motor and ensure consistent performance. Consult the model-specific data sheet or contact 3G Electric for details.