PULVERISETTE 5/4 Classic Line Planetary Mill
The Planetary Mill PULVERISETTE 5 classic line with 4 working stations delivers fast and reliable, due to the particularly high-energy effect of the grinding balls, loss-free grinding results of hard, medium-hard, soft, brittle, tough and moist materials down to colloidal fineness. Depending on the desired final fineness, can the grinding be performed dry, in suspension or in inert gas.
Besides for comminution, the Planetary Mill can be utilized for mixing and homogenizing of emulsions and pastes or for mechanical activation and alloying in material research.
เครื่องบดลดขนาดตัวอย่าง Planetary ยี่ห้อ FRITSCH รุ่น PULVERISETTE 5/4 Classic Line
เครื่องบดลดขนาดตัวอย่าง เป็นเครื่องบดตัวอย่างความเร็วสูง ที่ใช้หลักการของ Planetary Ball Mill สำหรับบดตัวอย่างที่มีลักษณะแข็ง กึ่งแข็ง และเปราะ โดยสามารถทำการบดได้ทั้งสภาวะแบบแห้งและสภาวะแบบเปียกเพื่อบดตัวอย่างให้มีขนาดเล็กมากๆโดยใช้เทคนิคที่เกิดจากแรงเหวี่ยงอันเนื่องมาจากการเคลื่อนที่ของโถบด (Centrifugal Force) เป็นการบดด้วยลูกบอล โดยใส่ตัวอย่างและลูกบอล ลงในโถบด แล้วจึงเหวี่ยงโถบดดังกล่าว ด้วยความเร็วสูง เพื่อให้ตัวอย่างเกิดแรงกระแทกเสียดสีกับลูกบอล ทำให้ลดขนาดลงตามต้องการ
AT A GLANCE
- Fast comminution with rotational speeds up to 400 rpm
- Loss-free grinding even below 1 μm
- Uniform fine comminution of large sample amounts
- Safe tensioning of the bowls with Safe-Lock-System
- Useful capacity up to 4 x 225 ml
IDEAL FOR
- GEOLOGY AND MINERALOGY
- CERAMICS
- CHEMISTRY
- BIOLOGY
- PHARMACEUTICALS
- METALLURGY
- MATERIAL TECHNOLOGY
- SAMPLE PREPARATION FOR ANALYSIS
| Working principle | impact force |
| Optimal for material type | hard, medium-hard, soft, brittle, tough, moist |
| Number of working stations | 4 |
| Grinding tools | grinding bowls and grinding balls |
| Materials of the grinding tools | agate, sintered corundum, silicon nitride, zirconium oxide, hardened stainless steel, hardmetal tungsten carbide |
| Grinding bowl sizes | 80, 250, 500 ml |
| Grinding ball diameter | 0.1 – 40 mm |
| Max. feed size (depends on material) | 10 mm |
| Min. sample quantity | 10 ml |
| Max. sample quantity | 900 ml |
| Final fineness (depends on material) | < 1 µm |
| Typical grinding time down to analytical fineness | 4 min |
| Grinding process | dry/wet |
| Grinding in inert gas | yes |
| Gas pressure and temperature measurement | yes |
| Rotational speed of main disk | 50 – 400 rpm |
| Transmission ratio planetary disk / grinding bowl | i relative = 1 : -2.19 |
| Effective diameter of main disk | ~ 250 mm |
| Centrifugal acceleration (g = 9.81 m/s²) | 22 g |
| Interfaces | yes |
| Electrical details | 200-240 V/1~, 50 – 60 Hz, 1730 Watt |
| Instrument also available in the following voltage | 100-120 V/1~, 50-60 Hz, 1470 watt – order no. 05.5010.00 |
| Emission sound pressure level at the workplace according to DIN EN ISO 3746 (depending on the material to be ground, grinding bowls/balls, selected rotational speed) | up to approx. LpAd = 83 dB |
| Weight | 120 kg |
| Dimensions (W x D x H) | bench top instrument 58 x 67 x 57 cm |
Comminution according to the Planetary Principle
The comminution of the material to be ground takes place primarily through the high-energy impact of grinding balls. To achieve this, the grinding bowl, containing the material to be ground and grinding balls, rotates around its own axis on a main disk whilst rotating rapidly in the opposite direction. At a certain speed, the centrifugal force causes the ground sample material and grinding balls to separate from the inner wall of the grinding bowl. The grinding balls then cross the bowl at high speed and further grind the sample material by impact against the opposite bowl wall. In addition, impact between the balls themselves on the sample material adds to the size reduction process.
Due to the rotational speed of the main disk – up to 400 rpm – achieves the PULVERISETTE 5 classic line a centrifugal acceleration of up to 22 g.
- Fast comminution of laboratory samples with up to 400 rpm
- 4 working stations
- Simultaneous processing of up to 8 samples
- Useful capacity up to 4 x 225 ml
- Toothed belt drive for bowls provides constant transmission ratio
- Rotational speed regulated by microprocessor
- Digital display of the actual rotational speed of the supporting disk
- Programmable grinding and pause times and grinding sequences – for short-time operation adjustable down to the second
- Smaller grinding bowls also possible with an adapter
- RS232 interface for transmission of process parameters (validation)
- Reversing function
- Overload protection with automatic rotational speed adjustment and display
- Maintenance-free drive due to electronically regulated rotary current motor (1.5 kW) with frequency converter and permanently lubricated bearings
- Grinding chamber hood safety lock with stoppage monitoring
- Membrane keyboard
- Grinding chamber with forced air ventilation
- Gas pressured springs for easy opening of the cover
- Energy-save-function (electricity-saving mode)
- Extensive accessories for simplifying your daily work
VIEW EXTENSIVE ACCESSORIES
Reproducible grinding results and absolutely safe grinding bowl clamping
The constant transmission ratio, the regulated rotational speed and precision quartz timing, ensure exactly reproducible grinding results. The Safe-Lock System, which is delivered with a torque wrench, enables simple and safe clamping of the grinding bowls – absolutely risk-free.
GTM – Gas Pressure and Temperature Measuring System
The Planetary Mill PULVERISETTE 5 classic line can be combined with the GTM-System for measuring of the gas pressure and temperature during grinding. This turns your mill into an analytical measuring system.
Configure your Planetary Mill PULVERISETTE 5 classic line matching your specific application
The Planetary Mill PULVERISETTE 5 classic line with 4 working stations, operates with 4 respectively 8 grinding bowls of sizes 80, 250 or 500 ml, which turn with a transmission ratio of 1 : -2,19 relative to the main disk.
To achieve best grinding results, grinding bowls and grinding balls are available in various sizes and 6 different materials. Contamination of the samples due to undesired abrasion can be directly prevented. For grinding in inert gas, for mechanical activation and alloying are gassing lids recommended.
