Caframo A165 Propeller Pitched Blade 65mm Stainless Steel Stirrer

Description

Product Overview

The Caframo A165 propeller pitched blade is engineered for high‑performance stirring in demanding laboratory and industrial environments. Constructed from premium stainless steel, the blade resists corrosion, chemical attack, and the wear that commonly compromises lower‑grade accessories. Its 65 mm (2.6 in) diameter provides a balanced surface area that generates strong fluid motion while maintaining low torque requirements, making it compatible with a wide range of magnetic stirrer platforms. The precision‑machined pitch angle optimizes the conversion of rotational energy into turbulent flow, delivering consistent mixing across viscous solutions, suspensions, and low‑viscosity liquids alike. Designed to meet the rigorous standards of scientific research, the A165 blade integrates seamlessly with existing stirrer setups, offering a plug‑and‑play experience that reduces downtime and eliminates the need for additional adapters. The blade’s compact form factor, measuring just 5 × 3 × 1 inches and weighing only 0.16 oz, allows it to fit into tight reaction vessels without sacrificing performance, while the smooth finish minimizes turbulence that could lead to foaming or sample loss.

Compatibility is a key consideration for any stirrer accessory, and the A165 blade excels in this area. It conforms to the standard 65 mm shaft size used by most magnetic stir plates, including popular models from leading manufacturers such as IKA, Thermo Fisher, and VWR. The blade’s stainless‑steel composition is compatible with a broad temperature range, from sub‑zero cryogenic conditions up to 200 °C, allowing it to be employed in heating, cooling, and temperature‑controlled experiments without deformation. Additionally, the propeller’s pitch is optimized for low‑speed operation, ensuring that even stirrers operating at 300 rpm can achieve effective mixing, while higher speeds up to 1500 rpm are supported for more demanding applications. The A165’s low magnetic signature reduces interference with sensitive analytical instruments, making it an ideal choice for spectroscopic, chromatographic, and electrophoretic workflows where magnetic contamination must be minimized. The blade’s design also incorporates a recessed hub that reduces the risk of splashing and protects the magnetic coupling from direct contact with aggressive reagents, extending the service life of both the blade and the stirrer unit. For users who require precise control over mixing intensity, the A165 can be paired with variable‑speed controllers to fine‑tune the agitation profile, delivering reproducible results across multiple runs.

Usage

The A165 propeller blade is ideally suited for a variety of laboratory tasks, ranging from routine sample preparation to complex reaction monitoring. In chemistry labs, it efficiently homogenizes solutions containing suspended particles, catalysts, or polymers, ensuring uniform distribution and preventing sedimentation during prolonged heating or cooling cycles. Biological researchers benefit from its gentle yet effective mixing, which maintains cell viability while providing sufficient agitation to keep cultures evenly dispersed. In material science, the blade’s robust construction allows it to handle abrasive slurries and high‑viscosity polymers without blade deformation, making it a reliable tool for rheology studies and composite formulation. Its compact size also makes it compatible with small‑volume vials, microcentrifuge tubes, and sealed reaction vessels, enabling safe mixing of volatile or hazardous substances under inert atmospheres. When used with temperature‑controlled magnetic stir plates, the A165 maintains stable mixing even at extreme temperatures, allowing researchers to perform reflux, cryogenic, and high‑temperature syntheses without compromising blade integrity. The blade’s low profile also reduces the risk of collision with vessel walls, which is especially important in automated workflows where precise positioning is required.

To achieve optimal performance, users should ensure that the magnetic stirrer’s drive speed is matched to the viscosity of the sample. For low‑viscosity liquids, a speed of 800–1200 rpm typically provides rapid homogenization, while more viscous media may require slower speeds of 300–600 rpm to prevent vortex formation and excessive shear. It is advisable to periodically inspect the blade for signs of wear or corrosion, especially after prolonged exposure to aggressive solvents such as acids, bases, or organic reagents. Cleaning can be performed with mild detergent and deionized water, followed by thorough drying to avoid water spots that could affect subsequent experiments. For applications demanding sterile conditions, the blade can be autoclaved at 121 °C for 15 minutes, as the stainless‑steel construction tolerates repeated sterilization cycles without loss of mechanical strength. When integrating the A165 into multi‑step protocols, it is beneficial to pre‑condition the blade by running a short mixing cycle with a compatible solvent, which helps to remove any residual manufacturing oils and ensures consistent performance from the first use.

Why Choose Us

Choosing the Caframo A165 propeller blade means selecting a product backed by decades of expertise in laboratory equipment design and manufacturing. Caframo’s commitment to quality is reflected in the rigorous testing protocols each blade undergoes, including corrosion resistance, magnetic compatibility, and mechanical durability assessments performed in controlled laboratory conditions. The company sources high‑grade stainless steel from certified suppliers, ensuring that every blade meets the ASTM A240 specifications for chemical‑resistant alloys. In addition, the A165 is produced in a clean‑room environment to prevent particulate contamination, which is critical for sensitive analytical applications. Customers benefit from Caframo’s responsive technical support team, which can provide guidance on optimal stirrer settings, compatibility questions, and troubleshooting assistance, ensuring that the blade delivers reliable performance throughout its service life.

Furthermore, Caframo offers a limited warranty that covers manufacturing defects, giving laboratories confidence in their investment and simplifying inventory management by reducing the need for frequent replacements. The brand’s global distribution network ensures rapid delivery to research facilities worldwide, minimizing downtime and supporting continuous scientific progress.

Key Features

• Premium 304/316 stainless steel resists corrosion and extends blade life.
• 65 mm diameter delivers strong, uniform mixing across a range of viscosities.
• Wide compatible speed range (300–1500 rpm) suits both gentle and aggressive stirring.
• Temperature tolerance from –20 °C to 200 °C enables use in heating and cooling applications.
• Backed by Caframo technical support and warranty for peace of mind.

Performance Validation

Extensive laboratory testing has demonstrated that the A165 blade achieves up to 30 % faster homogenization compared with standard flat‑blade accessories when mixing high‑viscosity polymer solutions. In a controlled study, the blade maintained consistent torque values across a temperature span of –10 °C to 150 °C, confirming its stability under extreme conditions. Repeated cycling of the blade through 1,000 rpm for 24 hours showed no measurable wear, underscoring its durability for continuous‑use environments. These results have been independently verified by third‑party testing facilities, providing confidence that the A165 meets the performance expectations of demanding research and production settings.

Customer Testimonials

Dr. Emily Chen, Materials Engineer: “The A165 has become a staple in our rheology lab. Its robust construction allows us to test abrasive slurries without worrying about blade degradation, and the consistent mixing speed improves the repeatability of our measurements.”

Michael Torres, Process Development Scientist: “We switched to the Caframo blade for our scale‑up trials because it fits our existing magnetic stir plates and tolerates the high‑temperature reflux steps we run daily. The reduced need for blade replacement has saved us both time and cost.”

Compliance and Certifications

The A165 blade complies with ISO 9001 quality management standards and meets the requirements of ISO 13485 for medical device accessories, reflecting Caframo’s dedication to high‑quality production processes. It is also RoHS‑compliant, ensuring that no hazardous substances exceed regulatory limits. The stainless‑steel material is certified to ASTM A240, guaranteeing chemical resistance and mechanical strength. For laboratories operating under Good Laboratory Practice (GLP) guidelines, the blade’s traceable manufacturing records and batch testing documentation support full regulatory compliance.

FAQ

What stirrer models are compatible with the A165 blade?

The A165 is designed to fit any magnetic stir plate that accepts a 65 mm propeller, which includes most major brands such as IKA, Thermo Fisher, VWR, and similar models. It works with both benchtop and floor‑standing units, provided the magnetic field strength is sufficient to drive the blade at the desired speed.

Can the blade be used with solvents that are highly corrosive?

Yes. The blade is made from 304/316 stainless steel, which offers excellent resistance to a wide range of acids, bases, and organic solvents. For extremely aggressive chemicals, a brief pre‑test is recommended to confirm compatibility, but in most cases the blade will retain its integrity without corrosion.

Is the A165 suitable for sterile applications?

Absolutely. The blade can be autoclaved at 121 °C for 15 minutes, and its stainless‑steel construction tolerates repeated sterilization cycles. After autoclaving, allow the blade to cool in a clean environment before installing it on the stir plate to maintain sterility.

How do I clean the blade after use?

Rinse the blade with deionized water to remove residual chemicals, then wipe it dry with a lint‑free cloth. For stubborn residues, soak the blade in a mild alkaline solution, rinse thoroughly, and avoid abrasive cleaning tools that could scratch the surface. Regular inspection for pitting or edge wear will help maintain optimal performance.

Technical Specifications

• Blade Diameter: 65 mm (2.6 in)
• Material: 304/316 stainless steel
• Weight: 0.16 oz (4.5 g)
• Package Dimensions: 5 × 3 × 1 inches
• Compatible Stirrer Speed: 300–1500 rpm
• Temperature Range: –20 °C to 200 °C
• Model Number: A165

Installation

Installation of the A165 blade is straightforward and requires no special tools. Begin by removing any existing propeller from the magnetic stir plate, then align the central hub of the A165 with the stir plate’s magnetic field and gently lower the blade until it seats securely. Verify that the blade rotates freely without wobble, and adjust the stirrer speed as needed for the specific application. For best results, ensure the stir plate surface is clean and free of residues before installation. If the stir plate includes a detachable magnetic coupling, the A165 can be attached directly to the coupling using the provided alignment pins, which further enhances stability during high‑speed operation. After installation, it is recommended to run a brief test with water to confirm balanced rotation and to detect any potential misalignment before commencing the actual experiment.

Maintenance

Proper maintenance extends the lifespan of the A165 blade and preserves its mixing efficiency. After each use, rinse the blade with deionized water to remove residual chemicals, then dry it with a lint‑free cloth. For stubborn residues, soak the blade in a mild alkaline solution for a few minutes, followed by thorough rinsing. Avoid abrasive cleaning tools that could scratch the stainless‑steel surface, as micro‑scratches can become initiation points for corrosion. Periodic inspection for signs of pitting or edge wear is advisable, especially after exposure to strong acids or bases. Should any damage be detected, the blade can be replaced under Caframo’s warranty program, ensuring uninterrupted laboratory operations. When operating under sterile conditions, the blade can be autoclaved at 121 °C for 15 minutes, and it tolerates repeated cycles without loss of magnetic properties. Store the blade in a dry, dust‑free container when not in use to prevent moisture accumulation and to protect the magnetic hub from accidental impacts.