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COLO.Science · Shakers & Mixers · Sample preparation
STOLAB Laboratory Bag Blender — one series, three models
The STOLAB laboratory bag blender homogenizes food, cosmetic, pharmaceutical and tissue samples in disposable sterile bags for microbiological testing. Two stainless-steel paddles beat the bag against the closed door, so the sample never touches the instrument and nothing has to be washed between samples. The series has three models — choose the one that matches your workflow.
Three models — choose by function
Overview
Every STOLAB model works with the same sterile bags of 17 × 30 cm and the same volume range of 3–400 ml, so methods and consumables stay the same whichever model you choose. The difference is in control and hygiene: programs and UV disinfection of the chamber start with STOLAB100, chamber heating is available only with STOLAB200.
Key characteristics
- Volume: 3–400 ml per bag, sterile bags 17 × 30 cm.
- Paddle rate: 3–12 strokes/s (STOLAB100, STOLAB200); 6–9 strokes/s (STOLAB50).
- Time: 0.1 s to 99 min 59 s or continuous (STOLAB100, STOLAB200).
- Programs: 8 multi-step program groups, real-time display of the running status.
- Alarms: voice alarm for short circuit, open circuit and over-temperature; voice reminder at the end of the set time.
- UV disinfection: 253.7 nm lamp in the chamber, 5-minute cycle (STOLAB100, STOLAB200).
Suitable for
- Initial suspensions and decimal dilutions in food microbiology
- Microbial limit testing of cosmetics and non-sterile pharmaceuticals
- Gentle disaggregation of animal tissue and biological samples
- Environmental swabs, sponges and filters in a bag with diluent
Why a laboratory bag blender
A laboratory bag blender releases microorganisms from the surface and the inside of a solid sample without cutting it into a slurry and without heating it. The sample and the diluent stay in a closed sterile bag, so there is no cross-contamination between samples, no blender jar to wash and autoclave, and the suspension can be pipetted directly — through the filter side when filter bags are used.
Details that make daily work easier
- Sample stays in the bag: no contact with any part of the instrument and no cross-contamination.
- Safety door: mirror stainless-steel frame with tempered glass; a photoelectric sensor stops the paddles when the door is opened.
- Stainless-steel chamber: paddle box in stainless steel with anti-corrosion coating; strike plate with convex profile.
- Long runs: ventilation openings on three sides keep the instrument cool in continuous work.
- Easy cleaning: removable door handle; no utensils to wash or sterilize between samples.
Technical specifications
Homogenization (all models)
| Instrument category | Laboratory bag blender (paddle homogenizer) |
| Working principle | Two paddles beat the sample bag against the closed door |
| Volume per bag | 3–400 ml |
| Sterile bag size | 17 × 30 cm |
| Paddle box | Stainless steel with anti-corrosion coating |
| Paddle gap | Adjustable with a knob |
Supply, shipping and documents
| Sample contact | None — the sample stays in the sterile bag |
| Door | Mirror stainless steel, tempered glass, removable handle |
| Safety | Photoelectric door sensor with automatic stop; anti-trap function; voice alarm |
| Supply voltage | AC 220 V, 50 Hz |
| Shipping size · gross weight (STOLAB100) | 54 × 31 × 41 cm · 24.5 kg |
Model comparison
| Feature | STOLAB50 | STOLAB100 | STOLAB200 |
|---|---|---|---|
| Display and control | LCD, keypad | 4.3″ colour touch screen | 4.3″ colour touch screen |
| Paddle rate | 6–9 strokes/s | 3–12 strokes/s | 3–12 strokes/s |
| Time setting | 30, 180, 600 s or continuous | 0.1 s – 99 min 59 s or continuous | 0.1 s – 99 min 59 s or continuous |
| Program storage | — | 8 multi-step groups | 8 multi-step groups |
| Soft start · voice alarm | — | Yes | Yes |
| UV disinfection 253.7 nm | — | Yes, 5-min cycle | Yes, 5-min cycle |
| Chamber heating | — | — | RT to 60 °C |
Ordering and delivery
- STOLAB50: basic bag blender with fixed time settings.
- STOLAB100: touch-screen bag blender with programs, soft start, voice alarm and UV disinfection.
- STOLAB200: STOLAB100 functions plus chamber heating up to 60 °C.
- Standard delivery: main unit, power cord and a starter set of sterile bags.
- Optional: stainless-steel rack for sterile bags; sterile standard or filter bags 17 × 30 cm.
The delivered configuration for a specific order is the one confirmed in the COLO.Science quotation.
Knowledge base
Sample preparation, dilution series and plate counts in food and cosmetics microbiology are explained on COLO.Science, our knowledge base.
Safety and good laboratory practice
- Bag position: clamp the bag so that the open end stays above the door.
- Door: the instrument stops automatically when the door is opened.
- Sharp pieces: bones and hard particles can puncture the bag — use reinforced or filter bags.
- Biosafety: handle samples and used bags according to local laboratory rules.
- Spills: clean the stainless-steel chamber immediately after a bag leak.
- UV cycle: STOLAB100 and STOLAB200 can disinfect the chamber between runs.
Configuration notice
This page is provided for orientation and model selection. Power, dimensions and weight of each model, as well as the delivered configuration, are confirmed with the official COLO.Science quotation.
Sales and support for international customers
COLO Lab ExpertsPolje ob Sotli 4, SI-3255 Buče, Slovenia
Phone: +386 70 713 437 · Email: sales@colo.si · Web: colo.si
We supply laboratories across Europe directly and through partners. B2B prices are quoted net, excluding VAT.
