Search

行星式球磨仪 PM 100

报价详情
生成PDF

语言:

The Planetary Ball Mill PM 100 is a powerful benchtop model with a single grinding station and  an easy-to-use counterweight which compensates masses up to 8 kg. It allows for grinding up to 220 ml sample material per batch.

The extremely high centrifugal forces of Planetary Ball Mills result in very high pulverization energy and therefore short grinding times.


The PM 100 can be found in virtually all industries where the quality control process places the highest demands on purity, speed, fineness and reproducibility.

The mill is ideally suited for tasks in research like mechanochemistry (co-crystal screening, mechano-synthesis, mechanical alloying and mechanocatalysis), or ultrafine colloidal grinding on a nanometer scale, as well as for routine tasks such as mixing and homogenizing soft, hard, brittle or fibrous materials.

标准应用的理想球磨仪

  • 最高转速可达650rpm
  • 最大进料尺寸10毫米,最终出料粒度可达0.1微米(受样品材料性质和仪器配置/设定的影响而定)
  • 1个研磨工作位,可容纳12毫升至500毫升的研磨罐
  • 12毫升至80毫升的研磨罐可以两两堆叠
  • GrindControl套装可测量研磨罐内温度和压力
  • RETSCH可提供通气顶盖,用于球磨罐中保持特殊气氛的应用
  • 可储存标准操作流程和循环程序、5种用于干式和湿式研磨的研磨罐材料

"I use Retsch ball mill PM100 for preparing sample for hydrogen storage applications. This setup is very useful for the required materials."

Chhagan Lal

University of Rajasthan

"It was really simple and safe to use, easy to clean and it helped me with my thesis investigation. I would really recommend this product. "

Jenifer Sauzameda

Dermabon

"This is such an effective planetary ball mill. As an academic and active laboratory researcher, I would choose the best product to conduct my experiments and the PM 100 is a good example. "

Erkul Karacaoglu

Karamanoglu Mehmetbey University

"Absolutely good to use and easy to handle, long lasting compared to other brands. Highly recommended for regular users."

Md Shalauddin

University of Malaya

"It is a versatile instrument that cuts the grinding time by orders of magnitude."

Dragos Zaharescu

University of California, Davis

可靠的评估:

RETSCH行星式球磨仪最佳的互补设备是什么? 是RETSCH混合型球磨仪!

得益于完美符合人体工程学的操作同时,研磨效果也能做到相同的精细程度,出料细度可达纳米级。

配重

Planetary mills with a single grinding station require a counterweight for balancing purposes. In the planetary ball mill PM 100 this counterweight can be adjusted on an inclined guide rail to compensate for the different heights of the centers of gravity of differently-sized grinding jars and thus avoid undesired oscillations of the machine.

Safety Slider

Operation of the RETSCH planetary ball mills is particularly safe. They feature a robust Safety Slider which ensures that the mill can only be started after the grinding jar has been securely fixed with a clamping device. The self-acting lock ensures that the jar is seated correctly and securely. This proven solid mechanical system is less failure-prone than electronic solutions - the user has full access to the sample at any time. When the electronic system fails, it is not possible to unlock the jars, for example.

Wet grinding is used to obtain particle sizes below 5 µm, as small particles tend to get charged on their surfaces and agglomerate, which makes further grinding in dry mode difficult. By adding a liquid or dispersant the particles can be kept separated.

To produce very fine particles of 100 nm or less (nano-scale grinding) by wet grinding, friction rather than impact is required. This is achieved by using a large number of small grinding balls which have a large surface and many friction points. The ideal filling level of the jar should consist of 60 % small grinding balls.

For more details on jar filling, wet grinding and sample recovery watch the video.

The graphic shows the result of grinding alumina (Al2O3) at 650 rpm in the PM 100. After 1 h of size reduction in water with 1 mm grinding balls, the mean value of the particle size distribution is 200 nm; after 4 h it is 100 nm. 

Grinding of alumina in water with 1 mm grinding balls (left) after 1 hour (blue) and after 4 hours (green)

In another trial, the material was first pulverized for 1 hour with 1 mm grinding balls and then for 3 hours with 0.1 mm grinding balls. In this case, an average size of 76 nm was achieved.

Grinding of alumina with 1 mm grinding balls (1 hour) and then with 0.1 mm balls (3 hours) in water

The results show that planetary ball mills can produce particle sizes in the nanometer range. The choice of the right ball size, the type of liquid and the liquid/solid ratio (viscosity level) play a crucial role in this process.

行星式球磨仪 PM 100 EasyFit研磨罐使用效果极佳

研磨罐及配置研磨球尺寸的选择也决定了样品制备的表现和结果。EasyFit系列研磨罐专为极端工作条件而设计,即使在最高转速为800转/分长期试验、湿磨、高负载和机械合金化反应。新款研磨罐适用于所有RETSCH行星式球磨仪。 新的EasyFit研磨罐系列在50-500毫升罐子的底部具有一种称为高级防扭动(AAT)的结构。这确保了罐子被紧紧固定,即使在高速下也没有扭动的风险,并且大大减少了磨损。罐子的安全紧固装置更加容易操作:找到正确的紧固位置后旋转最大60°即可。 与以前的“comfort”型号相比,EasyFit 50毫升和250毫升罐的几何形状在直径上有所扩大,在高度上有所减小。这提供了两个优点:更好的研磨效果和可互换的盖子,因此整个研磨罐系列只有三个盖子直径尺寸。 研磨罐容量类别 容量1:12毫升和25毫升研磨罐 容量2:50毫升、80毫升和125毫升研磨瓶 容量3:250毫升和500毫升研磨罐

.
  • 可选研磨罐容量: 12 ml / 25 ml / 50 ml / 80 ml / 125 ml / 250 ml / 500 ml
  • 创新性的高级抗震(AAT)功能确保研磨罐安全                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        
  • High flexibility thanks to suitability of three lid sizes for all seven jar sizes
  • Pressure-tight and dust-proof O-ring sealing prevents material spillage
  • Jars and balls available in 5 materials: hardened stainless steel, tungsten carbide, agate, sintered aluminium oxide, zirconium oxide
  • Stainless steel protective jacket for agate, sintered aluminum oxide, zirconium oxide and tungsten carbide grinding jars
  • A groove between jar body and lid allows for easy opening of the lid, e. g. with the help of a spatula, if there are underpressure effects inside the jar
EasyFit研磨罐使用效果极佳 - Planetary Ball Mill PM 300

特殊用途的研磨罐和盖子

  • 对于胶体或湿法研磨,建议使用带有锁紧装置的研磨罐。
  • 锁紧装置设计用于符合人体工程学的操作
  • Aeration lids are designed for working under inert atmosphere, for example if oxygen can influence the grinding process or the mechanosynthesis. The lids allow the introduction of gases like argon or nitrogen into the grinding jar.
  • Optional pressure and temperature measuring system PM GrindControl

通气顶盖和GrindControl现在都可以配备不同材料的盖子嵌件。因此,通过简单地更换嵌件,盖子可以配合用于例如不锈钢和氧化锆研磨罐。

特殊用途的研磨罐和盖子 - Planetary Ball Mill PM 300

Adapter for special applications

With a special adapter, co-crystal screening can be carried out in a planetary ball mill, using disposable vials such as 1.5 ml GC glass vials. The adapter features 24 positions arranged in an outer ring with 16 positions and an inner ring with 8 positions. The outer ring accepts up to 16 vials, allowing for screening up to 64 samples simultaneously when using the Planetary Ball Mill PM 400. The 8 positions of the inner ring are suitable to perform trials with different energy input, e.g. for mechanosynthesis research.

行星式球磨仪 PM 100 Recommended jar fillings

To produce optimum grinding results, the jar size should be adapted to the sample amount to be processed. The grinding balls are ideally sized 3 times bigger than the largest sample piece. Following this rule of thumb, the number of grinding balls for each ball size and jar volume is indicated in the table below. To pulverize, for example, 200 ml of a sample consisting of 7 mm particles, a 500 ml jar and grinding balls sized at least 20 mm or larger are recommended. According to the table, 25 grinding balls are required. 

Grinding jar
nominal volume
样品数量 最大进样尺寸 Recommended ball charge (pieces)
Ø 5 mm Ø 7 mm Ø 10 mm Ø 15 mm Ø 20 mm Ø 30 mm Ø 40 mm
12 ml 直至 5 ml <1 mm 50 15 5 - - - -
25 ml 直至 10 ml <1 mm 100 25 8 - - - -
50 ml 5 – 20 ml <3 mm 200 45 10 7 3 - -
80 ml 10 – 35 ml <4 mm 250 70 25 10 5 - -
125 ml 15 – 50 ml <4 mm 500 110 30 18 7 - -
250 ml 25 – 120 ml <6 mm 1200 220 50 45 15 6 -
500 ml 75 – 220 ml <10 mm 2000 440 100 70 25 8 4

The table shows the recommended charges (in pieces) of differently sized grinding balls in relation to the grinding jar volume, sample amount and maximum feed size.

韧性含纤维的
木头

40 g sample
500 ml stainless steel grinding jar
8 x 30 mm stainless steel grinding balls
5 min at 380 rpm

硬脆的:磁铁矿
磁铁矿

315 g sample
250 ml tungsten carbide grinding jar
15 x 20 mm tungsten carbide grinding balls
5 min at 500 rpm

中硬性:土壤
 土壤

45 ml sample
125 ml stainless steel grinding jar
7 x 20 mm stainless steel grinding balls
2 min at 400 rpm

含纤维的:干草
干草

200 ml sample
250 ml zirconium oxide grinding jar
15 x 20 mm zirconium oxide grinding balls
30 min at 480 rpm 

为了找到最好的解决方案,请访问我们的应用数据库。

行星式球磨仪的研磨罐位于底部太阳轮的偏心位置。研磨罐绕轴自转,与公共的太阳轮转动方向正好相反,太阳轮与研磨罐的转速比为1:-2。研磨罐中的球在于研磨罐一起运动时受到Coriolis力(即自转偏向力)的叠加影响。

研磨罐和研磨球的运动速度之差产生强摩擦力和撞击力,因而释放了大量的动能。这种撞击和摩擦的组合使得行星式球磨仪研磨时的粉碎度及高。 为了保持运动时的平衡,拥有一个研磨工位的行星式球磨仪需要配重。PM 100型行星式球磨仪的配重可在一条倾斜的导轨上调整。不同大小的研磨罐的不同重心高度由此得到精确的补偿,从而避免了仪器运行时的晃动和振荡。

剩余的振动可以通过仪器底座的微小自由运动(底座自由力补偿)得到补偿。这种新型的FFCS技术基于d’Alembert原理,允许机身作很小的回旋运动,自动完成质量补偿。实验桌面只受到仪器底座产生的微小摩擦力。

PM 100型行星式球磨仪运行时安静、安全,即使在罐内振动达到最大时仍能保证最优的振动补偿,因此可置于实验室桌面,无需监护。

保留技术变更和出错的权利