Interscience Automatic Spiral plater

The Interscience easySpiral® series represents a suite of automated surface plating instruments designed to streamline microbial enumeration by replacing manual pipetting and plating with precision-driven, spiral-based techniques. These instruments apply a microbiological sample in a logarithmic Archimedean spiral across a Petri dish, significantly reducing the need for serial dilutions, increasing accuracy, and ensuring full traceability in regulated environments.

The easySpiral range includes:

• easySpiral (essential entry-level model)
• easySpiral Pro (fully programmable with advanced traceability)
• easySpiral Pro Milk (tailored for dairy and milk testing)
• easySpiral Dilute (integrated dilutor and plater for full automation)

Spiral Plating Technology Overview

The spiral plating technique is a standardized surface inoculation method that enables:

• Continuous deposition of sample in decreasing volume from the center to the edge
• Up to 4 dilution factors on a single plate
• Quantitative analysis without prior serial dilution
• Standardization of the Pasteurian method across laboratories

Comparative studies (e.g., RAEMA) confirm that the Spiral method offers results equivalent to classical surface plating (R² = 0.989), while offering superior efficiency and reduced variability.

Model-Specific Overview

1. easySpiral – Compact and Essential

Reference: 412 000

CFU Range: 300 to 1.3 × 10⁵ CFU/mL

Dispensed Volumes: 50 µL and 100 µL

Plating Modes: Exponential (spiral), Circle

Traceability: Export to Excel™, LIMS, dataLink

The easySpiral is the base model in the series, ideal for laboratories looking for a cost-effective, automated solution for high-precision plating. It is fully compliant with ISO 7218 and ISO 4833-2, FDA BAM, and AOAC 977.27.

Best for: General food microbiology, teaching labs, and QC labs requiring essential automation.

2. easySpiral Pro – Programmable and Traceable

Reference: 413 000

CFU Range: 100 to 1 × 10⁷ CFU/mL

Dispensed Volumes: 50 µL, 100 µL, 200 µL (programmable from 10–1000 µL via USB)

Plating Modes: Exponential, Constant, Circle

Traceability: Full digital traceability, USB connectivity, LIMS-compatible

The easySpiral Pro is designed for regulated labs and advanced microbiology facilities requiring programmable precision, broader CFU ranges, and audit-ready traceability.

Best for: Pharmaceutical microbiology, advanced food safety labs, and high-throughput research centers.

3. easySpiral Pro Milk – Optimized for Dairy Industry

Reference: 413 090

CFU Range: 100 to 1 × 10⁷ CFU/mL

Sample Intake: From tubes (80 × 35 mm)

Plating Modes: Exponential, Pour, Circle

Traceability: USB connectivity, Excel™, LIMS, and dataLink export

This model is engineered specifically for milk payment laboratories and dairy industry quality control. It enables fast, standardized sample processing with optional pour plating for viscous or complex samples.

Best for: Raw milk testing, milk quality analysis, and dairy processing plants.

4. easySpiral Dilute – Fully Integrated Dilutor + Plater

Reference: 414 000

CFU Range: 30 to 1 × 10¹² CFU/mL

Dilution Capability: Up to 5 serial 1/10 dilutions per cycle

Plating Modes: Exponential, Constant, Circle, Pour

Dispensed Volumes: Programmable 10–1000 µL

Traceability: Full LIMS/export compliance

The easySpiral Dilute combines a gravimetric dilutor and automatic plater in a single unit, allowing fully automated dilution and plating of high-density samples without manual intervention. It drastically improves productivity and eliminates errors from manual dilution steps.

Best for: Central microbiology labs, dairy and food production testing, and high-volume industrial labs.

Compliance & Traceability

All models comply with:

• ISO 7218 – Microbiology of food and animal feeding stuffs
• ISO 4833-2 – Horizontal method for the enumeration of microorganisms
• FDA BAM – Bacteriological Analytical Manual standards
• AOAC 977.27 – Aerobic plate count compliance

Traceability Features:

• Export to Excel™, LIMS systems, and dataLink
• Programmable filling and disinfection cycles
• Audit-ready logs (on Pro and Dilute models)

Specifications

The Interscience easySpiral® series delivers a scalable solution for automating surface plating and dilution in microbiological workflows. Whether you're a routine food testing lab seeking efficiency, a regulated pharmaceutical QA team requiring traceability, or a dairy lab processing thousands of milk samples, there is an easySpiral model to match your specific workflow.

By enabling direct plating from the mother sample, programmable volume control, and automated traceability, these instruments streamline operations, reduce labor, minimize human error, and standardize results across teams and sites.