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Technical specifications P-7 premium

Technical specifications P-7 premium
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Technical specifications P-7 premium

Product catalog summary
Technical Specifications

Technical Data:
The P-7 premium Planetary Mill operates on the principle of impact force and is suitable for processing hard, medium-hard, soft brittle, tough, and moist materials. It is applicable in fields such as biology, chemistry, ceramics, geology, metallurgy, material research, mechanical alloying, nanotechnology, and pharmaceuticals. The mill features two grinding stations and uses grinding tools made from materials like agate, hardened stainless steel, hardmetal tungsten carbide, sintered corundum, zirconium oxide, and silicon nitride. Grinding bowl sizes range from 20 ml to 80 ml, with grinding ball sizes from 0.1 to 20 mm. The initial feeding size is a maximum of 5 mm, and the sample quantity ranges from 2 to 70 ml. The final fineness can be less than 0.05 µm for colloidal grinding. The grinding process can be conducted dry or wet, and in inert gas, with gas pressure and temperature measurement capabilities. The mill operates at an RPM of 150–1,100 for the main disk and 2,200 for the relative bowl speed. It has a power consumption of 1,200 W and operates at 100–120 V / 200–240 V, 50/60 Hz. The emission sound pressure level is 80 dB, and it has a safety class of IP21.

Accessories:
The P-7 premium comes with various accessories, including grinding bowls and balls made from different materials such as agate, sintered corundum, zirconium oxide, hardened stainless steel, hardmetal tungsten carbide, and silicon nitride. The mill also supports the EASY-GTM system for gas pressure and temperature measurement, and software for automatic control and validation of the grinding process. Additional accessories include gassing lids for grinding in inert gas, special emptying devices, counterweights, and replacement seal rings.

Application Examples:
Examples of applications include milling ceramics with zirconium oxide grinding balls at 850 rpm for 1 minute, basalt with hardened stainless steel grinding balls at 700 rpm for 1 minute, and fly ash with zirconium oxide grinding balls at 1100 rpm for 30 minutes. The document provides a particle size distribution graph for fly ash after milling.

For further consultation or test grinding, contact FRITSCH GmbH.
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Catalog excerpts

Technical specifications P-7 premium-2

Content Technical data . . . . . . . . . . . . . . . . . . . . . . . page 3 Accessories . . . . . . . . . . . . . . . . . . . . . . . . . page 5 Application examples . . . . . . . . . . . . . . . . . page 13

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Technical specifications P-7 premium-3

P-7 premium | Technical specifications | Technical data Technical data P-7 premium – Planetary Mill Working principle Impact force Hard, medium-hard, soft brittle, tough, moist Biology Chemistry Ceramics Geology and mineralogy Metallurgy Material research Mechanical alloying Nanotechnology Pharmaceuticals Grinding station Grinding tools Grinding stations + balls Materials grinding tools Agate, hardened stainless steel, hardmetal tungsten carbide, sintered corundum, zirconium oxide, silicon nitride Grinding bowl sizes Grinding ball sizes Initial size / feeding size max. Sample quantity Final fineness...

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Technical specifications P-7 premium-4

P-7 premium | Technical specifications | Technical data Transmission ratio planetary disk / grinding bowl Effective diameter of main disk Power consumption Electrical details Emission sound pressure level at the workplace acc. to DIN EN ISO 3746 (workplace related) Safety class

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Technical specifications P-7 premium-5

P-7 premium | Technical specifications | Accessories Accessories P-7 premium – Planetary Mill Order no. Instrument without grinding bowls and balls, incl. SelfLOCK clamping system 07.5000.00 for 100–120 / 200–240 V/1~, 50–60 Hz, 1,200 W Voltage, indicated by customer is set. Grinding bowls for Planetary Mill P-7 premium Grinding bowls with lid and seal ring Grinding bowls 80 ml volume for P-7 premium 50.9620.00 Agate, with steel casing Sintered corundum (99.7 % Al2O3), with steel casing Zirconium oxide, with steel casing Hardened, stainless steel, with steel casing Hardmetal tungsten carbide,...

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Technical specifications P-7 premium-6

P-7 premium | Technical specifications | Accessories Grinding bowls 20 ml volume for P-7 premium 50.9820.00 Agate, with steel casing Sintered corundum (99.7 % Al2O3), with steel casing Zirconium oxide, with steel casing Hardened, stainless steel, with steel casing Hardmetal tungsten carbide, with steel casing Silicon nitride, with steel casing Accessories for Planetary Mill P-7 premium Software 83.5605.00 Software MillControl for Windows For automatic control of the mill and validation of the grinding process Certification for P-7 premium IQ/OQ documentation (Questionnaire format - implementation...

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Technical specifications P-7 premium-7

P-7 premium | Technical specifications | Accessories Gassing lids for Planetary Mill P-7 premium Accessories for grinding in inert gas and for mechanical alloying Gassing lid with valves and seal ring for grinding bowls 80 ml, 45 ml, 20 ml 50.9627.00 Agate, with steel casing Sintered corundum (99.7 % Al2O3), with steel casing Zirconium oxide, with steel casing Hardened, stainless steel, with steel casing Hardmetal tungsten carbide, with steel casing Silicon nitride, with steel casing Gassing lids with Swagelok valves are available on request. EASY-GTM – Gas pressure and temperature measuring...

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Technical specifications P-7 premium-8

P-7 premium | Technical specifications | Accessories 50.9090.00 Grinding bowl made of silicon nitride with special lid and transmitter 50.9040.45 Grinding bowl made of agate with special lid and transmitter 50.9080.45 Grinding bowl made of sintered corundum (99 .7 % Al203) with special lid and transmitter 50.9070.45 Grinding bowl made of zirconium oxide with special lid and transmitter 50.9050.45 Grinding bowl made of hardened, stainless steel with special lid and transmitter 50.9060.45 Grinding bowl made of hardmetal tungsten carbide with special lid and transmitter 50.9090.45 Grinding bowl...

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Technical specifications P-7 premium-9

P-7 premium | Technical specifications | Accessories Mahlkugeln für Planetenmühlen Grinding balls 20 mm dia. for grinding bowls 80 ml 55.0200.05 Agate, polished Zirconium oxide Hardened, stainless steel Hardmetal tungsten carbide Silicon nitride Grinding balls 15 mm dia. for grinding bowls 80 ml, 45 ml Agate, polished Zirconium oxide Hardened, stainless steel Hardmetal tungsten carbide Silicon nitride Grinding balls 10 mm dia. for grinding bowls 80 ml, 45 ml, 20 ml Agate, polished Zirconium oxide Hardened, stainless steel Hardmetal tungsten carbide Silicon nitride

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Technical specifications P-7 premium-10

P-7 premium | Technical specifications | Accessories Grinding balls 5 mm dia. for grinding bowls 80 ml, 45 ml, 20 ml 55.0050.05 Agate, polished (100 pieces weigh approx. 17 g)1) Sintered corundum (99.7 % Al2O3) (100 pieces weigh approx. 48 g)1) Zirconium oxide (100 pieces weigh approx. 38 g)1) Hardened, stainless steel (100 pieces weigh approx. 52 g)1) Hardmetal tungsten carbide (100 pieces weigh approx. 97 g)1) Silicon nitride (100 pieces weigh approx. 48 g)1) The number of balls required for each grinding bowl can be determined by weighing them using the weight specifications. Grinding balls...

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Technical specifications P-7 premium-11

P-7 premium | Technical specifications | Accessories * At www.fritsch.de, you will find the standard analyses with detailed information on the materials directly next to the respective grinding bowls and balls.

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Technical specifications P-7 premium-12

P-7 premium | Technical specifications | Accessories Grinding balls with a diameter of 3 mm and smaller must be weighed. The above table shows the reguired weight per grinding cup. The usable capacity depends on the type of material. The specified ball filling per cup Is the minimum Quantity; depending on the material behaviour, it may need to be increased. In exceptional cases, the Quantity of grinding balls can be reduced by up to 15 %. In order to achieve consistent grinding results in line with our recommendations, a longer grinding time is necessary, which may result in increased abrasion....

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Technical specifications P-7 premium-13

P-7 premium | Technical specifications | Application examples • 25 x 10 mm zirconium oxide grinding balls • 5 x 20 mm hardened, stainless steel grinding balls

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Technical specifications P-7 premium-14

P-7 premium | Technical specifications | Application examples Sample 3: Fly ash Milling: • 100 g 0.5 mm zirconium oxide grinding balls • 1100 rpm • 30 min Particle size after milling 10

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Technical specifications P-7 premium-15

Contact person: Contact us now for a non-binding consultation or individual test grinding to identify your ideal device configuration and optimal grinding parameters. Version number: V01_2026 | Subject to technical changes.

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*Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.