Retsch GmbH

The Emax is an entirely new type of ball mill for high energy milling. The unique combination of high friction and impact results in extremely fine particles within the shortest amount of time. The high energy input is a result of an unrivaled speed of 2000 min-1 and the optimized jar design. Thanks to the revolutionary cooling system with water, the high energy input is effectively used for the grinding process without overheating the sample. Due to the special grinding jar geometry, the sample is thoroughly mixed which results in a narrow particle size distribution.

Unlike other high energy ball mills, the Emax is capable of continuous grinding operation without interruptions for cooling down. This dramatically reduces the grinding time. The high energy input in combination with the unique cooling system provides perfect conditions for effective mechanical alloying or grinding down to the nanometer range.

A wealth of safety features such as the integrated safety closure of the grinding jar, temperature control with automatic start/stop system, and integrated imbalance controls make operation of the bench-top mill Emax very user-friendly.

Benefits:

• faster and finer grinding than any other ball mills
• speed of 2000 min-1 allow for ultra-fast pulverization of the sample
• water cooling permits continuous operation without cool down breaks
• temperature-controlled grinding
• narrow particle size distribution thanks to special jar design which improves mixing of the sample
• patented drive concept

The Jaw Crusher BB 500 XL is used for rapid, effective, crushing and pre-crushing of medium-hard, hard, brittle and tough materials. Its variety of materials offered, including heavy-metal free steel, and its efficiency and safety makes the BB 500 ideal for sample preparation in laboratories and industrial plants.

For small amounts of sample the BB 500 XL is used batch-wise; for larger amounts it can be operated continuously. Control of the gap width and zero-point adjustment allow for reproducible results.

The BB 500 XL with its steep crushing chamber and powerful drive provides for very effective crushing kinematics.

Benefits:

• high crushing ratio 50:1
• continuous gap width setting
• overload protection
• wide range of materials for contamination free grinding
• removable no-rebound feed hopper
• easy-to-clean crushing chamber
• continuous and batch-wise crushing
• connector for dust extraction
• central lubrication (optional)
• suitable for integration in automatic installations
• special version for grinding semi-conductor materials

www.retsch.com/bb500xl

Cutting Mill SM 400 XL

The Cutting Mill SM 400 XL is ideally suited for pre-cutting of large sample pieces of soft, medium-hard, elastic, or fibrous materials. Depending on the application, it may also achieve the required fineness in one step.

The high torque of the new 3 kW drive with flywheel mass allows for an exceptionally effective preliminary size reduction of heterogeneous mixtures, such as waste or electronic components.

The cutting mill is used successfully for a great variety of materials. The sample is only moderately warmed up during the grinding process so that the mill is perfectly suitable for grinding temperature-sensitive materials.  Due to the large open surface of the 240 mm x 240 mm bottom sieve, it is possible to grind large sample quantities and to increase the throughput.

Advantages

• powerful size reduction thanks to 3 kW drive
• optimum cutting effects
• accepts large feed sizes up to 170 mm x 220 mm
• quick and easy cleaning due to fold-back hopper, smooth surfaces
• defined final fineness due to bottom sieves with aperture sizes from 0.50 - 20 mm
  
  www.retsch.com/sm400xl

The Vibratory Disc Mill RS 300 XL is suitable for the extremely quick, loss-free and reproducible grinding of medium-hard, brittle and fibrous materials to analytical fineness. It is possible to process 1, 2, 3 or 4 samples simultaneously. Thanks to the robust universal drive shaft, which sets the grinding jar into a 3-D motion, this mill accepts grinding set weights of up to 30 kg. The closed grinding system guarantees complete processing of the sample.

Just like the RS 200, the RS 300 XL with its robust design has proven to be ideally suitable for applications in geology, mineralogy, metallurgy, as well as in the building materials sector (cement) and in power plants.

Due to the high end fineness and speed the RETSCH Vibratory Disc Mills are the perfect choice when it comes to preparing samples for spectral analysis.

Benefits:

• reproducible results and homogeneous samples thanks to universal drive shaft (3D vibration of grinding sets)
• speed: 912 min-1
• autoreverse function (left/right rotation)
• programmable interval function (start/ stop automatic)
• wide range of materials for contamination-free grinding
• grinding jar volumes from 100 ml up to 2,000 ml
• closed and noise-insulated grinding chamber
• pneumatic grinding-jar clamping (with air-pressure) for convenient and safe handling

www.retsch.com/rs300xl

The analytical sieve shakers of the series AS 200 are used in research & development, quality control of raw materials, interim and finished products as well as in production monitoring. The controllable electromagnetic drive offers an optimal adaption for every product. Sharp fractions are obtained even after very short sieving times. With its all-digital controls, up to 99 sieving programs and calibration certificate the sieve shaker AS 200 control is indispensable for all users who attach importance to precision and operational convenience and need to comply with the guidelines of the ISO 9001.

Advantages:

• up to 99 sieving programs
• low noise operation thanks to optimized control
• USB connection for use of EasySieve software
• suitable for dry and wet sieving
• excellent separation efficiency even with short sieving times

RETSCH is the leading solution provider for neutral-to-analysis sample preparation and characterization of solids. On the basis of more than 100 years of experience RETSCH develops innovative size reduction and sieving equipment which is characterized by excellent performance, operating convenience, safety and a long lifetime.