If you're looking for a versatile, robust, and safe immersion blender for your laboratory, the Heidolph RZR 1 immersion blender is an excellent choice, especially if you're considering purchasing a used machine. This model is particularly popular in the pharmaceutical, chemical, cosmetic , and food for its reliability and high performance, even under continuous operation.

What it looks like visually

The Heidolph RZR 1 stands out for its compact and functional design. Aesthetically understated yet solid, the body generally has a metallic gray finish, with intuitive controls on the front panel. It features a vertical structure that houses the stirring shaft, while the motor is enclosed in a robust casing that ensures protection from overheating or overload. This is a compact yet powerful overhead stirrer that is easy to install on any laboratory bench.

Main components and measurements

The Heidolph RZR 1 mixer consists of:

• Powerful and reliable motor : designed to withstand continuous use.
• Adjustable stirring rod : Supports different types of stirrers, adapting to various samples and viscosities.
• Simple and precise controls : the front panel allows for easy speed adjustment, with a wide range for diverse applications.

The mixer is compact, measuring approximately 500 mm , making it ideal for positioning on laboratory tables without taking up too much space. Its weight, approximately 5 kg , makes it stable yet easily portable.

Mechanical characteristics and use

One of the distinguishing features of the Heidolph RZR 1 is its adjustable speed , which allows for wide application versatility. With a speed range of 280 to 2200 rpm for the main attachment and 35 to 250 rpm for the perpendicular attachment, this mixer is ideal for samples with varying viscosities. This feature makes it perfect for use in a variety of applications, both for low-viscosity preparations and denser samples.

The 77 W motor , powered by 230 V and 50 Hz , is powerful enough to handle large sample volumes, up to 20 liters , without overheating. This allows for continuous operation, ensuring smooth and reliable operation even under heavy load.

Usage procedure

Heidolph RZR 1 to use . Once the stirrer is secured to the workbench using a support bracket, the stirring rod can be inserted into the sample. The control panel allows you to select the desired speed based on the specific needs of the sample. Thanks to the electronic speed control, the operator can gradually adjust the parameters until reaching the optimal setting for uniform stirring.

Matching accessories

One of the strengths of the Heidolph RZR 1 is its compatibility with a wide range of accessories stirring rods can be combined depending on the type of sample being processed. Furthermore, there are adjustable supports and fixing plates, ideal for ensuring stability and safety during use.

Mathematical formulas for optimal use

To get the most out of your mixer, it's important to consider the stirring speed in relation to the sample's viscosity and volume. For example, you can use the following formula to determine the correct number of revolutions per minute (rpm):

Coefficient of Resistancerpm = \frac{Volume}{Viscosity \times Coefficient\ of\ Resistance} r p m = Viscos i t a ˋ × C oe ff i c i e n t o  f  R e s i s t e n c a V o l u m e

This allows for optimized mixing without overloading the engine.

Maintenance

To ensure long-lasting operation, regular maintenance of the Heidolph RZR 1 . After each use, it is advisable to thoroughly clean the stirring rod and the machine body to avoid the accumulation of residues that could compromise the efficiency of the device. Furthermore, it is important to periodically check the condition of the motor and ensure that the cooling fans are free from obstructions.

Safety and Compliance Regulations

The Heidolph RZR 1 complies with the main safety standards for laboratory equipment, even when used. If there are no specific CE , the machine can be adapted to current regulations by installing additional safety devices, such as automatic shut-off switches in the event of overheating or overload.

How to evaluate a good used one

When considering purchasing a used Heidolph RZR 1 , it is essential to check:

• Engine condition : It must operate without abnormal noises or excessive vibrations.
• Condition of the rods and accessories : check that they are intact and do not show signs of excessive wear.
• Control system : Make sure the speed is precisely adjustable and the mixer reaches the required rpm without difficulty.

Sectors of use

The Heidolph RZR 1 immersion blender is used in a variety of industries, thanks to its ability to handle various types of samples and applications:

• Pharmaceutical industry : preparation of solutions and mixing of compounds.
• Chemical industry : synthesis processes and reagent agitation.
• Cosmetics industry : preparation of creams and lotions.
• Food industry : mixing of liquid and semi-solid solutions.

Why buy used?

Buying a used Heidolph RZR 1 is an excellent investment for those seeking reliable equipment at a reasonable price. This model maintains high performance even after years of use and requires minimal maintenance. Choosing a well-maintained used model allows you to save money without sacrificing quality, making it a convenient solution for laboratories of all sizes.