Product Description
This is the complete working rotary evaporator: the digital RE-202-A main unit, a 5 litre heating bath, and a full borosilicate glass set — condenser, rotary joint, evaporation flask, receiving flask, clamps, vacuum seal and insulation kit. Choose the bath and the glassware above and the system arrives ready to assemble; you supply only a vacuum pump and chilled water.
Two decisions matter, and they are the two the selector above asks you to make.
Water bath or oil bath. A water bath (BM-302-A) is cheaper, cleaner and right for almost everything — but it loses volume to evaporation above about 90 °C and cannot be pushed much past 100 °C. An oil bath (BO-302-A) reaches higher, which is what you need when the solvent is high-boiling even under vacuum, or when the residue must be held warm to stay pourable. Oil is messier and needs the right fluid; we can specify it.
Glassware A, B or C. These are not cosmetic variations:
- Glassware A — standard diagonal. The classic layout, condenser angled down and away. Lowest overall height (534 mm), which matters under a bench shelf. Suction port GL-14 at the lower position. This is the default choice for routine solvent removal.
- Glassware B — vertical, high boiling point. The condenser stands upright (overall height 745 mm) with a supporting bracket, and the suction port moves to the upper position. The vertical path gives vapour a longer, cooler run before it reaches the pump — the configuration for high-boiling solvents where a diagonal condenser lets vapour through.
- Glassware C — cold finger, vertical. A cold-finger condenser in the vertical arrangement. Use it where you want a dry-ice or chiller-fed finger rather than a jacketed flow condenser — very low-boiling solvents, or where cooling water supply is the constraint.
All three share the same double corrugated cooling tube with 0.143 m² of cooling surface, and all three accept 50–2000 mL evaporation flasks and 100–2000 mL receiving flasks.
Key Features
- Complete system — main unit, 5 L heating bath and full glass set in one order
- 5 to 315 rpm, digital display with control knob
- Evaporation capacity up to 23 mL/min
- Forward, reverse and auto-reverse rotation — auto-reverse helps with foaming and viscous residues
- Spring-loaded manual jack, 200 mm stepless travel with one-touch lock — lift the flask clear the instant a run bumps
- DC brushless motor (simple servo) holds speed under changing load
- Double corrugated condenser, 0.143 m² cooling surface
- Accepts 50–2000 mL evaporation flasks, 100–2000 mL receiving flasks
- Optional DIG-VPCM vacuum controller adds programmed pressure control across 0–1013 hPa
Technical Specifications
| Series | Yamato RE-202-A rotary evaporator complete set |
| Speed range | 5 to 315 rpm |
| Evaporation capacity | Up to 23 mL/min |
| Rotation modes | Forward / reverse / auto reverse |
| Speed display | Digital display with control knob |
| Jack | Spring-loaded manual balance, max. 200 mm, stepless, one-touch lock |
| Rotary motor | DC brushless (simple servo) |
| Cooling condenser | Double corrugated tube, cooling surface 0.143 m² |
| Condenser ports | Glassware A: suction GL-14 (lower) + ø10 nozzle. Glassware B/C: suction GL-14 (upper) + ø10 nozzle. Cooling: GL-14 × 2 (lower) + two ø10 nozzles |
| Compatible evaporation flask | 50–2000 mL (optional reducer for smaller flasks) |
| Compatible receiving flask | 100–2000 mL |
| Heating bath | BM-302-A water bath (5 L) or BO-302-A oil bath (5 L) — selected above |
| External dimensions | Glassware A: W719 × D324 × H534 mm (overall 744 × 365 × 534). Glassware B/C: W529 × D324 × H745 mm (overall 554 × 365 × 745) |
| Operating ambient temperature | 5 to 35 °C |
| Main unit weight | approx. 10 kg (22 lb), excluding bath and glassware |
| Power rating (50/60 Hz) | AC 100–115 V, 1 A — with plug |
| Country of origin | Japan |
Safety Features
- DC motor protection — overload, overvoltage, low voltage and rotation-speed sensor error
- AC adapter protection — internal short circuit, overcurrent, overvoltage
- One-touch jack lock for immediate flask removal from the bath
What's Included
Main unit: AC adapter (1), power cable (1), bath guide (1), rear cover (1), single-sided tape fastener roll (1), double-sided tape fastener roll (1).
Glass set (type A, B or C as selected): cooling condenser (1), rotary joint (1), evaporation flask (1), receiving flask (1), ball joint clamp (1), flask clip (1), vacuum seal (1), condenser insulation kit (1), condenser bracket (1) — types B and C only, hex wrench (1) — types B and C only.
Heating bath: 5 L water or oil bath as selected.
Not included: vacuum pump, vacuum tubing, chilled water source and bath fluid. See the N820G oil-free diaphragm pump kit and the CF-303Y cooling water circulator.
Installation Requirements
- Electrical: AC 100–115 V, 1 A, 50/60 Hz, supplied with plug. The heating bath draws separately; confirm both circuits.
- Vacuum source: required and not included. An oil-free diaphragm pump (N820GKIT) is the right choice for solvent work — a rotary vane pump will be destroyed by solvent vapour unless properly trapped.
- Cooling: the condenser needs chilled water. A recirculating chiller (CF-303Y) is far more effective than tap water and uses none.
- Height: glassware B and C stand 745 mm tall. Measure the clearance under your bench shelf before choosing.
- Bath fluid: for oil-bath configurations, the fluid is not included and the bath must never be run dry.
Compliance
Country of origin: Japan. One-year manufacturer warranty.
Pro Lab Supply Corp is an authorized Yamato Scientific distributor. Tell us your solvent and batch volume and we will confirm the bath, glassware, pump and chiller as a complete quotation.
