The BT30 is the Orbi-Blotter — a specialty orbital shaker optimized for membrane / blot workflows in the BT family, sold at $1,040. Distinct from the BR family 2D platform rockers (also blot-optimized but with single-axis tilt motion) — the Orbi-Blotter delivers gentle orbital motion for blot processing on a 14×12" non-slip rubber mat platform. Provides an alternative motion technology for facilities that prefer orbital agitation over tilt rocking for membrane wash / hybridization / immunostaining workflows.
Author confidence note (MEDIUM): No specific BT30 brochure in available corpus. Specs sourced from universe label. Confirm exact orbital throw (typically lower than flask shakers — gentler motion for blot workflows), RPM range, motor specifications, and EU plug variant availability with Benchmark Scientific technical support.
Voltage options: This unit can be ordered with European voltage requirements (230V/50Hz). Contact us to order.
Key Specifications
| SKU | BT30 |
| Type | Specialty orbital shaker for membrane / blot workflows |
| Platform dimensions | 14" × 12" |
| Mat type | Non-slip rubber mat |
| Motion type | Orbital (gentle — optimized for blot workflows) |
| Voltage | 115 V or 230 V, 50–60 Hz (discrete variants) |
| Plug type | US Plug (this SKU); EU Plug variant — confirm at order |
| Sister BT family chasses | BT1011 XL flask shaker ($3,875), BT3001 standard flask shaker ($1,949), BT1502 microplate shaker ($1,221) |
| Sister BR family blot rocker | BR1000 BenchBlotter 2D rocker ($586 — alternative motion technology for blot workflows) |
| List price | $1,040 |
Orbital vs Rocker for Blot Workflows — Motion-Type Comparison
| Feature | Orbi-Blotter (BT30, this product) | BenchBlotter 2D rocker (BR1000) |
| Motion | Orbital (circular horizontal) | Single-axis tilt ("see-saw") |
| Motion technology | Gentle orbital | Tilt rocking |
| Platform | 14" × 12" rubber mat | 12" × 12" flat mat |
| List price | $1,040 | $586 |
| Best for | Orbital-agitation blot workflows; sweep-style liquid coverage | Tilt-rocking blot workflows; back-and-forth liquid coverage |
The $454 differential between BT30 ($1,040) and BR1000 ($586) reflects the orbital chassis complexity vs the simpler tilt rocker mechanism. Pick by motion preference:
- Orbital motion delivers circular sweep across membrane — uniform liquid coverage with continuous flow direction
- Tilt rocking delivers back-and-forth liquid coverage — alternating direction with brief liquid-pause between cycles
For standard membrane / blot workflows, both motion types produce acceptable results. Orbital may be preferred for time-sensitive incubations where continuous liquid motion matters; rocking for gentle / sensitive membranes where alternating direction reduces shear stress.
Application Profile
Western blot membrane processing — wash / blocking / antibody incubation cycles with orbital motion.
Southern / Northern blot processing — membrane prep, hybridization, wash workflows.
Immunostaining tray workflows — IHC / IF slide staining at orbital motion.
Multi-membrane simultaneous processing — 14×12" platform supports moderate multi-membrane throughput.
Pharmaceutical / biotech bench standardization on orbital motion for blot workflows.
Multi-investigator shared facility — orbital alternative to BR rocker family.
Cell-culture facility procurement — adherent cell culture in flask format requiring gentle orbital motion (between flask-shaker BT1011/BT3001 and microplate BT1502 use cases).
Frequently Asked Questions
Q: What makes the BT30 different from a blot rocker? A: The BT30 Orbi-Blotter uses gentle orbital (circular) motion, rather than the single-axis tilt of the BR1000 2D rocker or the 3D tilt of the B3D1308.
Q: What platform and mat does the BT30 have? A: A 14×12" platform with a non-slip rubber mat.
Q: How does its price compare to the BR1000 rocker? A: The BT30 lists at $1,040 vs the BR1000 rocker at $586; the $454 difference reflects the orbital chassis complexity vs the simpler tilt mechanism.
Q: When should I choose orbital over rocking for blots? A: Orbital may be preferred for time-sensitive incubations needing continuous liquid motion; rocking for gentle or sensitive membranes where alternating direction reduces shear.
Q: Is a 230V version available? A: Yes — 115V/230V chassis; a 230V/50Hz configuration is available by special order.
Ordering & Configuration
Confirm motion-type fit. Orbital vs rocker — confirm workflow preference; orbital is the BT30's distinguishing feature.
Confirm orbital throw / RPM range. Blot-optimized orbital throw is typically gentler than flask-shaker orbital throw.
Confirm voltage and plug type. 115 V / 230 V chassis; confirm EU plug variant availability if international procurement.
Confirm at quote: voltage and plug type, intended membrane / blot workflow context, motion-type preference (orbital vs rocker), and lead time.
Warranty: Per Benchmark Scientific standard capital-equipment terms.
Blot workflow chassis options across motion technologies:
- BT30 Orbi-Blotter (this product) — Orbital motion ($1,040) — gentle orbital blot processing
- BR1000 BenchBlotter 2D rocker — Tilt motion ($586) — single-axis tilt blot processing
- B3D1308 BlotBoy 3D rocker — 3D tilt motion ($602) — multi-axis tilt blot processing
Pick the Orbi-Blotter when orbital motion is preferred for blot workflows; sister BR1000 / B3D1308 cover tilt-motion alternatives at lower cost. See BT1011 anchor for full BT family motion-type decision.
