PM 300几乎完美地适合所有行业，可满足质量控制过程中对纯度、速度、出样细度和重现性的最高要求。由于其高达64倍重力加速度的巨大能量输入，PM 300也是机械化学反应（机械化学合成、机械合金化和机械催化）或纳米级超细胶体研磨等研究任务的完美选择。
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。
操作RETSCH行星式球磨机特别安全，配有安全挡片保护装置，确保只有研磨罐紧固后才能启动。太阳轮锁定设计可确保研磨罐定位准确、紧固安全。经过验证的机械系统比电子解决方案更不容易发生故障——用户可以随时轻松取放研磨罐。而当电子系统出现故障时，就可能无法解锁研磨罐。PM 300的另一个独特的安全特征是当紧固装置已达到所需的25Nm扭矩力固定时，设备会发出鸣笛声并在显示屏上通知。RETSCH提供了方便的紧固辅助扳手，当机器设定在600和800转/分之间的较高速度范围内运行时，这尤其需求。
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 video shows wet grinding in the Planetary Ball Mill PM 100.
该图显示了在PM 300中以650rpm和800rpm粉碎二氧化钛（TiO2）的结果和净处理时间。在800rpm下更高的能量输出时，颗粒尺寸减小得更快。然而，在800转/分的转速下增加的升温团聚效应也应该考虑在内，因为它们可能需要更长的间隔时间。
二氧化钛使用0.1mm研磨球和六偏磷酸钠分散剂的净研磨时间
不同行星式球磨仪在不同速度设置下可达到的加速度
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.
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 | ||||
| 12 ml | 直至 ≤5 ml | <1 mm | 50 | 15 | 5 | - | - | - | |
| 25 ml | 直至 ≤10 ml | <1 mm | 95 – 100 | 25 – 30 | 10 | - | - | - | |
| 50 ml | 5 – 20 ml | <3 mm | 200 | 50 – 70 | 20 | 7 | 3 – 4 | - | |
| 80 ml | 10 – 35 ml | <4 mm | 250 – 330 | 70 – 120 | 30 - 40 | 12 | 5 | - | |
| 125 ml | 15 – 50 ml | <4 mm | 500 | 110 – 180 | 50 – 60 | 18 | 7 | - | |
| 250 ml | 25 – 120 ml | <6 mm | 1100 – 1200 | 220 – 350 | 100 – 120 | 35 – 45 | 15 | 5 | |
| 500 ml | 75 – 220 ml | <10 mm | 2000 | 440 – 700 | 200 – 230 | 70 | 25 | 8 | |
RETSCH planetary ball mills are perfectly suitable for size reduction of, for example, alloys, bentonite, bones, carbon fibres, catalysts, cellulose, cement clinker, ceramics, charcoal, chemical products, clay minerals, coal, coke, compost, concrete, electronic scrap, fibres, glass, gypsum, hair, hydroxyapatite, iron ore, kaolin, limestone, metal oxides, minerals, ores, paints and lacquers, paper, pigments, plant materials, polymers, quartz, seeds, semi-precious stones, sewage sludge, slag, soils, tissue, tobacco, waste samples, wood, etc.
Our instruments are recognized as the benchmark tools for a wide range of application fields in science and research. This is reflected by the extensive citations in scientific publications. Feel free to download and share the articles provided below.
| 应用 | pulverizing, mixing, homogenizing, colloidal milling, mechanical alloying, mechanochemistry, co-crystal screening |
| 应用领域 | 农业, 化学, 医药, 地质/冶金, 工程/电子, 建筑材料, 环境/循环, 玻璃/陶瓷, 生物 |
| 样品特征 | 软性, 硬性, 脆性, 纤维质—干或湿 |
| 粉碎原理： | 撞击力，摩擦力 |
| 最大进样尺寸 | < 10 mm |
| 最终出料粒度 * | 用于胶体研磨，出样小于０.１微米 |
| 批次加料量* | max. 2 x 220 ml |
| 研磨平台数 (可接纳研磨罐数) | 2 |
| 转速比设定 | 1 : -2 |
| 太阳轮转速 | 50 - 800 min-1 |
| 有效太阳轮直径 | 180 mm |
| 重力 | 64 g |
| 研磨罐种类 | optional areation covers, safety closure devices |
| 研磨套件材料： | hardened stainless steel, 碳化钨, 玛瑙, 烧结刚玉, 氧化锆 |
| 研磨罐尺寸 | 12 ml / 25 ml / 50 ml / 80 ml / 125 ml / 250 ml / 500 ml |
| Stackable grinding jars | 12 ml / 25 ml / 50 ml / 80 ml |
| Adapter for single-use glas vials | 24 x 1.5 ml / 7 x 20 ml |
| 粉碎时间设定 | 数字式，00:00:01至99:59:59 |
| 间歇驱动 | 可以，反向转动 |
| 转动时间 | 数字设定 00:00:01 至 99:59:59 |
| 暂停时间 | 数字设定 00:00:01 至 99:59:59 |
| 可存储运行模式 | 12 |
| 可储存的循环方案： | 4 |
| 能力输入测定 | 是 |
| 串行接口 | USB, RASPI |
| 驱动 | 带变频器的三相交流电动机 |
| 驱动功率 | 2,5 kW |
| 电源数据： | 200-240 V, 50/60 Hz |
| 电源接头： | 单相 |
| 防护类型 | IP 20 |
| 接受功率 | ~ 3335 VA |
| 机体尺寸（宽x高x纵深） | 745 x 525 x 580 mm |
| 净重 | ~ 118 kg |
| 标准 | CE |
| 专利/实用专利 | 是 |
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想法，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。
保留技术变更和出错的权利
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