Sterile Sample Homogenizer for Food, Pharmaceutical & Microbiological Analysis
3–400 mL capacity
Adjustable homogenization speed
UV sterilization option
Heating option
Anti-pinch protection
8 programmable methods
Availability: In Stock
Stomacher Blender (Sterile Homogenizer / Laboratory Bag Mixer)
Description
Overview
Designed for microbiological sample preparation in food safety, pharmaceutical QC, environmental monitoring, and research laboratories.
Hawach Stomacher Blender (also known as Sterile Homogenizer or Laboratory Bag Mixer) enables rapid, reproducible, and contamination-free homogenization of solid, semi-solid, and liquid samples.
The sample is placed into a sterile disposable filter bag together with diluent. The instrument gently kneads the sample through controlled paddles, efficiently releasing microorganisms without direct contact between sample and equipment.
The resulting homogenate is immediately ready for microbial analysis, PCR testing, culture preparation, and other laboratory workflows.
- No cross-contamination – sample fully sealed in sterile bag
- No cleaning between runs – instrument never contacts sample
- High cell viability – gentle homogenization preserves microorganisms
- Compatible with standard 17 × 30 cm sterile filter bags
Applications
Applications in Food Microbiology Testing
Ideal for total plate count, pathogen detection (Salmonella, Listeria, E. coli), and shelf-life studies of:
- Meat and poultry
- Seafood
- Fruits and vegetables
- Dairy products
- Processed and ready-to-eat foods
Supports efficient microbiological sample preparation for routine food safety testing workflows.
Laboratory Bag Mixer for Pathogen Detection
Provides fast and reproducible homogenization for PCR-based and culture-based pathogen analysis.
The sealed sterile bag system eliminates cross-contamination between samples, ensuring reliable microbiological results in high-throughput laboratories.
Sterile Homogenizer for Pharmaceutical Microbiology
Suitable for GMP-compliant environments, including:
- Raw material testing
- Non-sterile product testing
- Microbial limit testing
- Environmental monitoring samples
Ensures consistent and reproducible sample preparation for regulatory compliance testing.
Additional Applications
| Industry | Applications |
| Biological & Clinical | Animal tissues, biological specimens, cell preparation, PCR workflows |
| Cosmetics | Creams, lotions, personal care products, preservative efficacy testing |
| Environmental | Soil, sludge, water filtration residues, environmental microbiology |
Key Benefits
Truly Contamination-Free System
- Sample remains sealed inside sterile disposable filter bag
- No direct contact between instrument and sample
- Eliminates cross-contamination risk
- Reduces cleaning workload and downtime
- Suitable for ISO, GMP, FDA microbiological workflows
Gentle Homogenization with High Cell Recovery
- Progressive kneading action instead of grinding
- Preserves bacterial viability and fragile cells
- No heat generation or sample degradation
- Ideal for microbiological recovery studies
Adjustable Homogenization Gap (0–50 mm)
Flexible paddle spacing enables optimal processing of:
- Soft samples (fruits, vegetables, tissues)
- Medium samples (meat, dairy)
- Hard or dense samples (frozen meat, powders)
Improves homogenization efficiency and prevents bag rupture.
Intelligent Touch Control System
- Widescreen LCD touch interface
- Adjustable time and speed settings
- Up to 8 programmable methods
- Real-time operation display
- Power-failure memory recovery
- Audible completion alarm
Hygienic Open Chamber Design
- Fully opening front door
- Transparent observation window
- 316 stainless steel chamber
- Leak collection tray for safety
Designed for easy maintenance and long-term durability.
UV Sterilization & Heating Options (LY-4M / LY-4RM)
- UV-C sterilization (253.7 nm) between runs for contamination control
- Heating function (RT–60 °C) improves homogenization of fatty or viscous samples
- Suitable for high-standard laboratory environments
Safety Protection System
- Automatic anti-pinch protection
- Soft start function
- Pause operation
- Voice alarm system
- Emergency stop response
Key Features at a Glance
| Category | Features |
| Control | Touch LCD, 8 programs, real-time monitoring |
| Performance | 3–12 strokes/sec, 0.1–99 min or continuous, 0–50 mm gap |
| Safety & Hygiene | Anti-pinch system, stainless steel chamber, leak tray, UV option |
| Operation | Soft start, pause function, alarm system |
| Design | Fully open door, transparent window, easy cleaning |
Model Comparison
| Parameter | LY-4 | LY-4M (UV) | LY-4RM (UV + Heating) |
| Sample volume | 3–400 mL | 3–400 mL | 3–400 mL |
| Homogenization speed | 3–12 strokes/sec | Same | Same |
| Adjustable gap | 0–50 mm | Same | Same |
| Program storage | 8 methods | 8 methods | 8 methods |
| UV sterilization | No | Yes | Yes |
| Heating function | No | No | Yes (RT–60 °C) |
| Chamber material | 316 stainless steel | 316 stainless steel | 316 stainless steel |
| Weight | 18 kg | 18 kg | 19 kg |
Technical Specifications
- Display: Touch screen LCD
- Sample volume: 3–400 mL
- Homogenization speed: 3–12 strokes/sec
- Time range: 0.1 min – 99 min 59 sec / continuous
- Gap adjustment: 0–50 mm
- Chamber: 316 stainless steel
- Power supply: 220V / 50Hz (110V optional)
- Power consumption: 200W
- Dimensions: 420 × 230 × 330 mm
- Weight: 18–19 kg
Ordering Information
| Cat. No. | Model | Description |
| 18071001 | LY-4 | Standard Stomacher Blender with adjustable speed |
| 18071002 | LY-4M | With UV sterilization function |
| 18071003 | LY-4RM | With UV sterilization + heating function |
All models include power cable, user manual, and starter sterile filter bags set.
Frequently Asked Questions
What is the difference between a Stomacher Blender and a Laboratory Bag Mixer?
They refer to the same category of equipment used for sterile sample homogenization in microbiology laboratories.
Does the sample contact the instrument?
No. The sample is fully sealed inside a sterile disposable filter bag throughout the process.
Can it process both solid and liquid samples?
Yes. It is suitable for solid, semi-solid, and liquid samples including food, tissues, pharmaceuticals, and cosmetics.
Do I need to clean the chamber after each use?
No routine cleaning is required unless a bag rupture occurs.
What is the effective sample volume range?
3 mL to 400 mL.
What is the benefit of adjustable gap?
It optimizes homogenization for different sample hardness levels and prevents bag damage.
Are UV and heating functions necessary?
UV improves decontamination between runs; heating improves processing of fatty or viscous samples.
What sterile bags are compatible?
Standard 17 × 30 cm sterile filter bags (filtered or non-filtered).
Can OEM service be provided?
Yes, OEM and private label services are available upon request.
What is the lead time?
Standard models ship within 3–5 working days; customized models require 15–20 working days.
The quality has a guarantee
Fast & safe shipping worldwide
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