The R4045 is the RotoBot Programmable Rotator — larger sister of the RotoBot Mini at $1,212. $389 step-up over R4040 Mini ($1,212.00) for larger bundled holder set: 30 × 1.5 mL + 8 × 15 mL + 2 × 50 mL (vs Mini's 12 + 2 + 2 = 16 total positions; this chassis: 40 total positions = 2.5× more). Universal-voltage chassis (100–240 V single SKU).
Author confidence note (MEDIUM) — class inconsistency: Universe labels R4045 as accessory but its 230 V sister variant correctly as capital — staging-table inconsistency between the US and EU variant labels for the same chassis. Treating as capital (durable bench instrument); flagging FQ-class.
Voltage options: This unit can be ordered with European voltage requirements (230V/50Hz). Contact us to order.
Key Specifications
| SKU | R4045 |
| Type | Programmable tube rotator (larger-format chassis) |
| Voltage | 100–240 V, 50–60 Hz (universal-voltage single SKU) |
| Speed control | Variable + Programmable |
| Bundled holders | 30 × 1.5 mL + 8 × 15 mL + 2 × 50 mL = 40 total positions |
| Compatible rocking platform | R4045-RP2 (6 × 10" — larger than R4040-RP, $233) |
| List price | $1,212 |
When to Pick R4045 vs R4040 RotoBot Mini
| Feature | R4040 Mini | R4045 (this product) |
| Bundled 1.5 mL positions | 12 | 30 (2.5× more) |
| Bundled 15 mL positions | 2 | 8 (4× more) |
| Bundled 50 mL positions | 2 | 2 (same) |
| Total positions | 16 | 40 (2.5× more) |
| List price | $1,212.00 | $1,212 |
| Step-up cost | — | +$389 |
| Rocking-platform sister | R4040-RP (6 × 5.5", $186) | R4045-RP2 (6 × 10", $233) |
Pick the R4045 when:
- Production-scale rotator workflow — 2.5× the bundled-holder throughput vs Mini
- Multi-investigator shared facility — larger chassis serves more concurrent demand
- Method-development workflows — programmable + larger sample throughput
Stay with R4040 RotoBot Mini ($1,212.00) for bench-mini scale workflows at 16-position throughput.
Frequently Asked Questions
What tube holders are bundled with the R4045? 30 × 1.5 mL, 8 × 15 mL, and 2 × 50 mL positions — 40 total positions.
How does the R4045 compare to the R4040 RotoBot Mini? It is a $389 step-up over the R4040 Mini ($1,212.00) for roughly 2.5× the bundled-holder throughput (40 positions versus the Mini's 16).
What voltage does the R4045 run on? A universal-voltage 100–240 V single SKU.
Which rocking platform pairs with the R4045? The R4045-RP2 (6 × 10", $233), the larger platform matched to this chassis.
Ordering & Configuration
Confirm at quote: voltage / plug type, intended programmable workflow, holder inventory, and lead time.
Warranty: Per Benchmark Scientific standard capital-equipment terms.
RotoBot family: R4040 Mini ($1,212.00 16 positions) and R4045 (this product, $1,212, 40 positions). Pick by throughput requirement.
