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STIR-PAK

STIR-PAK is a brand of overhead stirrer components, including shafts and impellers, designed for laboratory and industrial mixing applications. The brand is recognized for its stainless steel construction, which provides corrosion resistance and durability in chemical, pharmaceutical, and food processing environments. STIR-PAK products are typically used with overhead stirrer motors to agitate liquids, suspensions, and slurries in vessels ranging from small beakers to larger tanks. The product line includes shafts in various lengths (e.g., 18 in, 24 in, 30 in) with a standard 3/8 in shaft diameter, and radial propellers with three blades and blade diameters such as 2 in. These components are manufactured to precise specifications to ensure compatibility with common stirrer drives and to maintain consistent mixing performance. The stainless steel material (often 304 or 316 grade, though not explicitly stated in the available data) offers resistance to a wide range of chemicals and allows for easy cleaning. STIR-PAK impellers feature a radial blade shape, which generates flow patterns suitable for mixing, dispersion, and heat transfer applications. The brand does not typically include motors or controllers; instead, it focuses on the wetted parts that come into contact with the process fluid. 3G Electric supplies STIR-PAK shafts and impellers as individual components, allowing engineers and maintenance managers to replace or upgrade parts without replacing the entire stirrer assembly. The availability of multiple shaft lengths and impeller sizes enables customization for different vessel depths and mixing requirements. STIR-PAK components are designed for straightforward installation, typically using a chuck or collet system on the stirrer motor. The brand's emphasis on stainless steel construction aligns with industry standards for hygiene and chemical resistance, making it suitable for cleanroom or sanitary environments. While STIR-PAK does not publish extensive technical documentation on its website, the product specifications (shaft diameter, length, blade count, blade shape, material) provide sufficient data for procurement and engineering decisions. 3G Electric stocks these items for global shipment, supporting maintenance and production needs without requiring minimum order quantities or long lead times. For plant engineers and procurement specialists, STIR-PAK offers a reliable source of replacement parts for overhead stirrers, with the assurance of dimensional consistency and material quality.

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About STIR-PAK

STIR-PAK is a brand of overhead stirrer components, including shafts and impellers, designed for laboratory and industrial mixing applications. The brand is recognized for its stainless steel construction, which provides corrosion resistance and durability in chemical, pharmaceutical, and food processing environments. STIR-PAK products are typically used with overhead stirrer motors to agitate liquids, suspensions, and slurries in vessels ranging from small beakers to larger tanks. The product line includes shafts in various lengths (e.g., 18 in, 24 in, 30 in) with a standard 3/8 in shaft diameter, and radial propellers with three blades and blade diameters such as 2 in. These components are manufactured to precise specifications to ensure compatibility with common stirrer drives and to maintain consistent mixing performance. The stainless steel material (often 304 or 316 grade, though not explicitly stated in the available data) offers resistance to a wide range of chemicals and allows for easy cleaning. STIR-PAK impellers feature a radial blade shape, which generates flow patterns suitable for mixing, dispersion, and heat transfer applications. The brand does not typically include motors or controllers; instead, it focuses on the wetted parts that come into contact with the process fluid. 3G Electric supplies STIR-PAK shafts and impellers as individual components, allowing engineers and maintenance managers to replace or upgrade parts without replacing the entire stirrer assembly. The availability of multiple shaft lengths and impeller sizes enables customization for different vessel depths and mixing requirements. STIR-PAK components are designed for straightforward installation, typically using a chuck or collet system on the stirrer motor. The brand's emphasis on stainless steel construction aligns with industry standards for hygiene and chemical resistance, making it suitable for cleanroom or sanitary environments. While STIR-PAK does not publish extensive technical documentation on its website, the product specifications (shaft diameter, length, blade count, blade shape, material) provide sufficient data for procurement and engineering decisions. 3G Electric stocks these items for global shipment, supporting maintenance and production needs without requiring minimum order quantities or long lead times. For plant engineers and procurement specialists, STIR-PAK offers a reliable source of replacement parts for overhead stirrers, with the assurance of dimensional consistency and material quality.

Common Applications

  • Chemical mixing — STIR-PAK stainless steel shafts and radial impellers for blending reagents in laboratory reactors
  • Pharmaceutical compounding — STIR-PAK 3/8 in shafts and 2 in impellers for suspending active ingredients in small batches
  • Food processing — STIR-PAK overhead stirrer components for mixing sauces, syrups, or emulsions in stainless steel vessels
  • Environmental testing — STIR-PAK shafts and propellers for agitating water samples during analysis
  • Paint and coating formulation — STIR-PAK radial impellers for dispersing pigments in solvent-based mixtures
  • Biotechnology — STIR-PAK stainless steel stirrer parts for cell culture media preparation in cleanroom settings

Frequently asked questions

Common questions about STIR-PAK from 3G Electric.

What materials are STIR-PAK shafts and impellers made from?

STIR-PAK shafts and impellers are constructed from stainless steel. The specific grade (e.g., 304 or 316) is not listed in the available product data, but stainless steel provides general corrosion resistance and mechanical strength suitable for many laboratory and industrial mixing applications. The material choice supports use with aqueous solutions, mild acids, and bases, though compatibility should be verified for aggressive chemicals.

What shaft diameters and lengths are available for STIR-PAK overhead stirrer shafts?

STIR-PAK shafts have a standard shaft diameter of 3/8 in. Available lengths include 18 in, 24 in, and 30 in, as represented by SKUs 8MWX6, 8MWX7, and 8MXN0 respectively. These lengths accommodate different vessel depths and mixing requirements. The 3/8 in diameter is common for many overhead stirrer motors, ensuring compatibility with standard chucks or collets.

What is the blade configuration on STIR-PAK impellers?

STIR-PAK impellers feature a radial blade shape with three blades. The blade diameter is 2 in for models such as SKU 8YA69 (MPN 04552-50). The radial design generates flow outward from the impeller, promoting mixing and dispersion in the vessel. The three-blade configuration balances mixing efficiency with low vibration at moderate speeds.

Are STIR-PAK shafts and impellers interchangeable with other brands?

STIR-PAK components are designed with a 3/8 in shaft diameter, which is a common size for many overhead stirrer systems. However, compatibility depends on the motor's chuck or collet capacity and the impeller mounting method. STIR-PAK impellers are typically secured with a set screw or similar mechanism. It is recommended to verify the shaft diameter and attachment style before ordering.

Can STIR-PAK components be used in food or pharmaceutical applications?

STIR-PAK components are made from stainless steel, which is generally acceptable for food and pharmaceutical environments due to its cleanability and corrosion resistance. However, the brand does not provide explicit certifications such as FDA or USP Class VI. Users should assess the specific material grade and surface finish against their industry's regulatory requirements.

Does 3G Electric supply STIR-PAK products?

Yes — 3G Electric (S) Pte. Ltd. supplies STIR-PAK products. We stock the STIR-PAK catalog and supply genuine factory-original products with full manufacturer warranty and technical support.