Technical Specifications

The Gentle Rocker GR 200i is an automated sample recovery device from Copley Scientific, built to promote easy and fully repeatable dissolution of drug from NGI Collection Cups and ACI Collection Plate surfaces following APSD sampling. It applies a consistent, defined agitation pattern to the impactor collection trays—gentle back-and-forth rocking along a central longitudinal axis—to ensure well-controlled and complete drug dissolution every time . The specifications below cover the standard unit; trays, covers, and qualification documentation are selected separately.

Model/Part Number: GR 200i (Catalogue No. 5932)

Compatibility

• NGI Collection Cups

• ACI Collection Plates (with ACI Collection Plate Tray & Cups, Cat. No. 5933, purchased separately)

Recovery Performance

• Agitation speed: 10–60 RPM (±1 RPM)

• Agitation pattern: gentle rocking back and forth along a central longitudinal axis

• Run time: timer function with fixed rocking speed

• Tilting functionality: convenient tilting to facilitate effective solution sampling post drug recovery

User Interface and Connectivity

• User interface: touchscreen

• Connectivity: USB A, USB B, and RS-232

Physical Specifications

• Dimensions (W x D x H): 590 x 320 x 235 mm (main unit); 590 x 320 x 250 mm per Chinese page

• Dust cover: included as standard

• Optional: Low Evaporation Cover with seals to minimise solvent loss where evaporation is a particular problem

Qualification and Maintenance

• Comprehensive IQ/OQ/PQ documentation package and toolkit available

• Qualification tools for GR, IC, and IGi series available

• Re-calibration of qualification tools available

• Extended warranty available

Standard Accessories Included:

• GR 200i base unit

• Dust cover

• Power cable

• Operating manual

Items Excluded:

• NGI Collection Cup Tray (supplied with the NGI, not the GR 200i)

• ACI Collection Plate Tray & Cups (Cat. No. 5933, required for ACI compatibility)

• Low Evaporation Cover (optional, for solvent evaporation minimisation)

• IQ/OQ documentation (Cat. No. 5925)

• Qualification tools (Cat. No. 5926)

• Extended warranty options

• Calibration certificates

Pre-installation Requirement:
Place the GR 200i on a level bench with clearance for the 590 x 320 mm footprint and access to all sides for loading and removing trays. Connect the unit by USB A, USB B, or RS-232 for control and data. If ACI plates are to be recovered, fit the ACI Collection Plate Tray & Cups (Cat. No. 5933) before the first run. Confirm the unit rocks freely through its full range before loading a sample tray.

---

Why This System Belongs in an APSD Testing Lab

Drug recovery from cascade impactor collection surfaces is the step that turns a sampling run into an assayable result, and it is also the step most dependent on analyst technique. Solvent is dispensed onto each surface, then agitated until the drug dissolves. How much agitation, how consistent the motion, and how long it runs all affect recovery completeness—and in a multi-operator lab, those variables are hard to control by hand.

The GR 200i automated sample recovery rocker standardises that step. It rocks the collection tray gently back and forth along a central longitudinal axis at a set speed from 10 to 60 RPM with ±1 RPM accuracy . The same motion is applied to every cup and plate in a study, which removes the analyst-to-analyst variation that manual agitation introduces. The result is specific, reproducible drug recovery and easier method transfer between sites .

The tilting functionality matters for the step after recovery. Once the drug has dissolved, the analyst needs to sample the solution from each cup or plate. The GR 200i tilts to facilitate effective solution sampling, which reduces the awkward handling that leads to spills and lost sample .

Compatibility with both NGI cups and ACI plates is the feature that makes this a single-instrument solution for labs running both impactor formats. ACI users, who have largely been doing recovery by hand, get the same repeatability that NGI automation has offered .

For buyers sourcing through OS4U, the configuration questions are whether the ACI Collection Plate Tray & Cups (Cat. No. 5933) is needed for ACI use, whether the Low Evaporation Cover should be included for volatile solvents, and whether IQ/OQ documentation is required for your quality system. The Copley Scientific GR 200i product page lists the current configuration options.

---

Key Benefits

Reproducible recovery without manual variability

The GR 200i automated sample recovery rocker applies the set agitation speed and pattern identically to every collection surface. The recovery condition does not depend on how an analyst shook the tray by hand, which removes a known source of assay variability.

Gentle rocking that does not damage the sample

The GR 200i rocks back and forth along a central longitudinal axis rather than shaking or vortexing. This gentle motion dissolves the drug without the mechanical stress that could damage the collection surface or introduce artefacts into the sample .

Covers NGI and ACI in one unit

NGI Collection Cups and ACI Collection Plates are both compatible, with the ACI Collection Plate Tray & Cups (Cat. No. 5933). A lab running both formats does not need two recovery systems or two sets of procedures .

Tilting for easier solution sampling

The convenient tilting functionality positions the tray for effective solution sampling after recovery, reducing awkward handling and the risk of spills .

Frees the analyst for other work

With a timer function and consistent motion, the analyst loads the tray, starts the run, and steps away. The instrument handles the agitation while the analyst attends to other tasks .

Evaporation control available

The optional Low Evaporation Cover, fitted with seals, minimises solvent loss where evaporation is a particular problem. This is relevant for volatile solvents or extended recovery runs .

Qualification documentation available

A comprehensive IQ/OQ/PQ documentation package and toolkit are available for labs that need to qualify the instrument under GxP. Extended warranty options are also available .

---

Solving the Problems That Slow Drug Recovery Down

Struggling with inconsistent recovery between analysts? The agitation speed and pattern are set digitally and applied identically to every tray. The recovery condition does not depend on manual technique.

Worried about recovery damaging the deposited drug? Gentle rocking along a central longitudinal axis dissolves the drug without the mechanical stress of shaking or vortexing.

Running both NGI and ACI formats? One unit is compatible with both collection cup and plate formats, with the appropriate tray.

Losing sample during solution recovery? The tilting functionality positions the tray for effective sampling, reducing spills and lost sample.

Losing analyst time to manual agitation? The timer function and consistent motion free the analyst for other work while the recovery run proceeds.

Concerned about solvent evaporation? The optional Low Evaporation Cover with seals minimises solvent loss where evaporation is a problem.

Needing to qualify the instrument under GxP? IQ/OQ/PQ documentation and qualification tools are available as separate catalogue items, along with extended warranty options.

---

Warranty & Support

We provide a 1-year manufacturer’s warranty covering parts and labor. Technical support, installation assistance, and operational training are also available. Replacement parts and consumables are available throughout the product’s service life.

Request a Quotation or Technical Datasheet

Contact us for more information, customized configurations, and solutions tailored to your specific requirements.