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FRITSCH Knife Mill PULVERISETTE™ 11
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High-Performance Laboratory Knife Mill for Fast, Reproducible Sample Preparation
Specifications:
| Application | pharmaceutical, Analytical Chemistry, Food & Beverage, Sample Preparation | Warranty | 2 Years |
| Storage Temperature | Ambient | ||
| Product Type | Laboratory Mills | ||
| Product Brand | FRITSCH GmbH | ||
| Product Grade | Analytical grade | ||
The FRITSCH Knife Mill PULVERISETTE 11 is a powerful, industry-grade laboratory mill designed for rapid comminution, homogenisation, and mixing of a wide variety of sample types. Equipped with a 1250 W motor, advanced control system, and precision-engineered four-blade knife, it delivers highly reproducible results within seconds.
Engineered for both routine and demanding laboratory workflows, this versatile system efficiently processes moist, oily, fatty, fibrous, and dry materials. It is an essential solution for laboratories in food testing, pharmaceuticals, agriculture, biology, and chemistry.
Key Features
High-Speed Grinding Performance
- Up to 56,000 cutting processes per minute
- Typical grinding time of approximately 30 seconds
- Efficient processing of challenging materials
Reproducible Results
- Final fineness below 300 µm
- Homogeneous and representative samples
- Reverse mode for improved mixing
Flexible Operation
- Variable speed range from 2,000 to 10,000 rpm
- Turbo function up to 14,000 rpm
- Continuous, interval, and reverse operation modes
SOP Programming and Data Management
- Storage of up to 20 SOPs with custom naming
- Up to 15 programmable sequences per SOP
- USB interface for SOP transfer and report generation
Cryogenic Processing Capability
- Direct grinding with liquid nitrogen
- Suitable for elastic, heat-sensitive, or sticky samples
- Maintains sample integrity during processing
Hygienic Design
- Autoclavable sample-contact components
- Dishwasher-safe grinding vessel and accessories
- Quick removal of knife via bayonet locking system
Safety and Reliability
- Operation only when properly assembled
- Automatic speed limitation based on vessel type
- Overheating protection system
- Secure locking of protective hood during operation
Applications
- Food and beverage testing
- Animal feed analysis
- Agricultural and forestry materials
- Pharmaceutical sample preparation
- Biological and life science research
- Chemical and material testing
Working Principle
The PULVERISETTE 11 operates using a high-speed cutting mechanism. Curved blades generate rapid cutting action while the internal contours of the grinding vessel ensure continuous movement of the sample toward the center. Reverse operation enhances mixing, resulting in homogeneous samples with narrow particle size distribution. Each subsample taken is representative of the original material, ensuring analytical accuracy.
Technical Specifications
| Parameter | Specification |
|---|---|
| Power Supply | 200–240 V / 1~, 50/60 Hz |
| Motor Power | 1250 W |
| Speed Range | 2,000 – 10,000 rpm |
| Turbo Speed | Up to 14,000 rpm |
| Cutting Frequency | Up to 56,000 cuts/min |
| Max Feed Size | 40 mm |
| Final Fineness | < 300 µm |
| Grinding Capacity | Up to 1,400 ml |
| Reduced Volume (Vario-Lid) | ~540 ml |
| Grinding Time | ~30 seconds (material dependent) |
| SOP Storage | Up to 20 SOPs |
| Interface | USB |
| Standard Vessel | 1.4 L PC (autoclavable) |
Standard Delivery
- Knife Mill PULVERISETTE 11
- 1.4 L grinding vessel (autoclavable PC)
- Standard lid
- Stainless steel standard knife
Accessories and Ordering Information
Grinding Vessels
| Cat. No. | Description | Material | Capacity | Notes |
|---|---|---|---|---|
| 11.3151.16 | Standard grinding vessel | PC | 1.4 L | Autoclavable |
| 11.3280.00 | Grinding vessel | Stainless Steel 316L | 1.3 L | Suitable for cryogenic grinding |
| 11.3152.16 | Grinding vessel | Tritan Copolyester | 0.6 L | Chemical resistant |
| 11.3170.00 | Grinding vessel | Glass | 0.6 L | High chemical resistance |
Lids and Accessories
| Cat. No. | Description | Material | Application |
|---|---|---|---|
| 11.3203.15 | Standard lid | Silicone | General use |
| 11.3180.00 | Vario-Lid system with plunger | PP | Volume reduction and mixing |
| 11.3189.16 | Reduction sample pusher | Plastic | Dry samples |
| 11.3220.00 | Cryogenic lid with sieve insert | — | Liquid nitrogen grinding |
| 11.3224.00 | Sieve inserts (set of 10) | — | For cryogenic applications |
Knives (Standard and Advanced)
| Cat. No. | Description | Material | Application |
|---|---|---|---|
| 11.3204.00 | Standard knife | Stainless steel | General purpose |
| 11.3206.00 | Knife with truncated edges | Stainless steel | Hard samples |
| 11.3208.00 | Sickle knife | Stainless steel | Fibrous materials |
| 11.3210.00 | Sickle knife (serrated) | Stainless steel | Tough materials |
| 11.3215.00 | Sickle knife (serrated, TiN-coated) | Coated steel | High durability |
Knives for Glass Vessels
| Cat. No. | Description | Material |
|---|---|---|
| 11.3270.00 | Sickle knife | Stainless steel |
| 11.3271.00 | Sickle knife (serrated) | Stainless steel |
| 11.3272.00 | Sickle knife (TiN-coated) | Coated steel |
Single-Use and Multi-Use Systems
| Cat. No. | Description | Volume | Notes |
|---|---|---|---|
| 11.3230.00 | Adapter for vessels | — | Enables use of small vessels |
| 83.3280.00 | Single-use vessels (10 pcs) | 40 ml | PP |
| 83.3282.00 | Single-use vessels (100 pcs) | 40 ml | PP |
| 83.3285.00 | Single-use vessels (10 pcs) | 100 ml | PP |
| 83.3287.00 | Single-use vessels (100 pcs) | 100 ml | PP |
| 83.3283.00 | Multi-use vessel | 40 ml | PA with 316L insert |
| 83.3288.00 | Multi-use vessel | 100 ml | PA with 316L insert |
Software and Additional Items
| Cat. No. | Description |
|---|---|
| 11.3990.00 | P-11Control software (USB-based control and reporting) |
| 83.4075.00 | Scraper |
| 11.3205.16 | Replacement knife coupling |
| 96.0350.00 | IQ/OQ documentation |
Unique Advantages
- Rapid and efficient processing across diverse sample types
- High reproducibility for analytical accuracy
- Integrated SOP management and reporting capability
- Cryogenic grinding in a single workflow
- Extensive accessory range for application-specific configuration
- Laboratory-grade safety and durability
The FRITSCH PULVERISETTE 11 Knife Mill is a versatile and high-performance solution for modern laboratories requiring fast, reproducible, and flexible sample preparation. Its combination of power, precision, and adaptability makes it suitable for a broad range of applications across research, quality control, and industrial laboratories.