UnionClay is a rotary evaporator manufacturer producing the RE series from 1L bench glassware to 50L pilot builds, in manual-lift and automatic-lift configurations. Parameter sheets cover RE-101, RE-201D, RE-301 and the RE-2000A/B/E group, and the factory matches each evaporator with the vacuum pump, chiller and bath it needs.
RE Series Coverage From Bench to Pilot
Six builds make up the current line, and they overlap on purpose: capacity bands repeat across lift types so a buyer chooses mechanics and budget tier separately from flask volume. Every product page below carries the same parameter-sheet data this page is built from.
| Build | Capacity span | Lift type | Product page |
|---|---|---|---|
| Compact bench unit | 1L–3L | Standard | Rotary Evaporator 1L-3L |
| Mid bench unit | 5L | Standard | Rotary Evaporator 5L |
| Automatic bench unit | 1L–2L | Automatic | Automatic Lift Rotary Evaporator 1L-2L |
| Manual pilot unit | 10L–50L | Manual | Manual Lift Rotary Evaporator 10L-50L |
| Automatic pilot unit | 10L–50L | Automatic | Automatic Lift Rotary Evaporator 10L-50L |
| Configured workstation | By application | By configuration | Rotary Evaporator System |
Parameter-Sheet Glassware Data for the RE Line
Glassware compatibility is where rotary evaporator orders go wrong most often, so here is the joint data exactly as the client parameter sheets list it. The detail worth noticing: RE-301 steps up to a 50# flange port on the rotary flask while the receiving side stays on the 35# spherical ground joint across the whole group — receiving glassware carries over between models, rotary flasks do not always.
| Specification | RE-101 | RE-201D | RE-301 | RE-2000A / B / E |
|---|---|---|---|---|
| Rotary flask capacity | 1L | 1L | 3L | 1L |
| Rotary flask joint | 24# ground joint | 24# ground joint | 50# flange port | 24# ground joint |
| Receiving flask capacity | 1L | 1L | 1L | 1L |
| Receiving flask joint | 35# spherical ground joint | 35# spherical ground joint | 35# spherical ground joint | 35# spherical ground joint |
| Condenser (dia. x length) | 85 x 270 mm | 85 x 270 mm | 85 x 270 mm | Vertical condenser, 85 x 270 mm |
Larger 10L–50L builds use scaled glassware confirmed per order; the bench-unit sheet above is the reference point for joint standards across the line.
Manual Lift or Automatic Lift — Picking the Right Build
Both lift types raise and lower the evaporating flask in and out of the bath; what you are paying for is how. Our honest take: at 1L–2L the automatic lift is a comfort feature, but at 10L–50L it becomes a handling decision — a loaded pilot-scale flask assembly is heavy, and motorized lift removes the most awkward manual step in the workflow.
| Decision factor | Manual lift | Automatic lift |
|---|---|---|
| Available builds | 10L–50L pilot units | 1L–2L bench and 10L–50L pilot units |
| Flask handling | Operator raises and lowers assembly | Motorized raise and lower |
| Best fit | Budget-led pilot installations with trained operators | Frequent batch changes, heavy flasks, single-operator labs |
| Reference pages | Manual 10L-50L | Automatic 10L-50L |
A Complete Evaporation Station From One Factory
A rotary evaporator without vacuum and cooling is a rotating flask. The system-level build sheet defines what a working station includes, and because UnionClay also manufactures the support equipment, the matching happens inside one factory instead of across three suppliers.
| System area | What the build sheet specifies |
|---|---|
| Process scope | Rotary evaporation, vacuum concentration and solvent recovery |
| Heating options | Water bath or oil bath by temperature requirement |
| Control | Digital temperature and rotation control options |
| Support equipment | Vacuum pump, chiller and condenser matching |
| Selection data | Bottle volume, solvent, bath temperature, vacuum and recovery rate expectations |
The two pairings we configure most: a vacuum pump sized to the flask volume and solvent, and a recirculating chiller holding the condenser cold enough to keep recovery rates honest. The DLSB chiller line on this site is built in the same plant and shares the inquiry process.
Solvent Recovery Jobs the RE Line Runs
Solvent Recovery
Pulling process solvent back out of a mixture under vacuum — the core duty the line is specified around, from 1L research batches to 50L pilot recovery.
Sample Concentration
Concentrating extracts and reaction products gently at reduced pressure, where bath temperature and vacuum level matter more than raw speed.
Evaporation Under Vacuum
Routine distillation-style evaporation work where the condenser and cooling source decide throughput.
Pre-Distillation Preparation
Reducing volume ahead of fine separation on distillation equipment downstream.
The Pre-Quotation Review Our Engineers Run
Before any RE-series quotation goes out, the factory walks one checklist drawn from the selection basis on the product sheets. Six points, no exceptions: flask volume, condenser type, vacuum pump, cooling source, bath temperature, and lift mode — all read against your solvent’s characteristics. If a buyer cannot answer one of the six yet, we flag it rather than quote around it; an evaporator matched to the wrong solvent profile wastes everyone’s quarter. Factory background and inspection practice are documented on the quality and factory page.
Buyer FAQ for the RE Series
Which rotary evaporator capacity should I start with?
Match the rotary flask to your largest routine batch, not your largest imaginable one. The 1L–3L and 5L bench builds cover research work; move to the 10L–50L pilot units only when batch volume genuinely demands it, because glassware, bath and support equipment all scale with the flask.
What is the practical difference between manual and automatic lift?
Mechanically, only how the flask assembly is raised from the bath. Practically, automatic lift earns its place on 10L–50L builds where the loaded assembly is heavy and batch changes are frequent; on 1L–2L units it is a convenience choice.
Do I need a vacuum pump and chiller with the evaporator?
For solvent recovery, yes — the build sheet lists vacuum pump, chiller and condenser matching as standard system scope. UnionClay supplies both from the same factory so capacities are matched before shipment rather than discovered on site.
What flask joints does the RE series use?
Per the parameter sheets: 24# ground joints on the rotary flask for RE-101, RE-201D and the RE-2000 group, a 50# flange port on RE-301, and a 35# spherical ground joint on the receiving flask across all listed models.
What should I confirm before requesting a quotation?
The six review points: flask volume, condenser type, vacuum pump, cooling source, bath temperature and lift mode, plus the solvent you run. Send those and the factory can answer with a specific configuration instead of a range. General purchasing terms are on the FAQ page.
Tell Us Your Solvent, Flask Volume and Cooling Source
That one sentence is enough to start. Send it through the contact form or by email, and the reply will name a build from the table above — with the matching pump and chiller if you want the full station from one supplier.
Glassware and system data on this page are parsed from the RE-series parameter sheets published on the UnionClay rotary evaporator product pages. Configurations are confirmed per order before quotation.