Rotary Evaporator

Rotary Film Evaporator

Name: Rotary Film Evaporator
Brand: Lata Scientific
SKU: rotary-evaporator
Availability: InStock

LSRE series, 1 L to 100 L rotating flask

Thin-film rotary evaporator for gentle solvent recovery under full vacuum — eight models from a 1 L bench unit to a 100 L pilot unit, with a PTFE vacuum seal and IP-55 protected drive.

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At a glance
Product type	Rotary film (thin film) evaporator
Model range	LSRE1 to LSRE100 — eight models
Rotating flask capacity	1 L to 100 L
Rotating speed	0–80 rpm to 20–230 rpm, depending on model
Electric motor rating	0.25 HP to 0.5 HP
Condenser cooling surface area	0.10 m² to 1.0 m²
Receiver flask capacity	0.5 L to 20 L
Bath rating	2 kW to 8 kW

Product overview

What it does, and where it fits.

The rotary film evaporator is essentially a thin-film evaporator. The rotating flask continuously covers a large surface area with a thin film, which is ideal for rapid heat transfer. The film also ensures uniform heat distribution without local heating, so the batch never sees a hot spot at the wall.

The facility to work the unit under full vacuum further assists evaporation at as low a temperature as possible. These features combined render the rotary film evaporator ideally suited to evaporation of heat sensitive material. It is equally successful for evaporation of suspension in crystallization processes, drying of powder and granules, and similar duties.

The range runs from LSRE1 through LSRE100 — a 1 L rotating flask on a 0.25 HP drive at the small end, to a 100 L flask with a 1.0 m² condenser and an 8 kW bath at the pilot end. Everything on the range runs on a single-phase 230 V / 50 Hz supply.

Features

Built into every unit.

Table top model — sleek, compact, with minimum footprint
Continuous feed tube, and a high-efficiency vertical condenser for maximum recovery rates
Provision for reflux distillation through a reflux valve as an additional feature
Total recovery of product condensate to the recovery flask
Designed specially for solvent separation — miscible and immiscible — and for crystallization
Control panel on the front of the unit, keeping the operator away from the hot water bath
Heating bath with non-slip handles for safe up and down movement; operable manually at the time of power failure
Vacuum seal constructed in PTFE, which extends seal life and reduces down time
Indigenously developed PTFE vacuum seal mechanism
IP-55 insulation protection against dust and fumes

Benefits

Why it earns its place in the line.

Thin rotating film gives rapid heat transfer over a large surface area
Uniform heat distribution — no local overheating of the batch
Full vacuum operation drops the boiling point, so heat sensitive product is not degraded
Suited to crystallization suspensions and to drying powders and granules, not just clean solvents
PTFE seal runs unlubricated and does not contaminate the distillate
One supply specification across the whole range — 230 V, 50 Hz

Applications & industries

Where it is specified.

Typical applications

Solvent recovery and stripping after reaction or extraction
Concentration of heat sensitive material at low temperature under vacuum
Separation of miscible and immiscible solvents
Evaporation of suspensions in crystallization processes
Drying of powders and granules
Reflux distillation, using the optional reflux valve

Industries served

Pharmaceutical
Chemical processing
Fine chemicals & dyes
Research & development
Pilot plant
Food & flavours
Essential oils
Distillation & solvent recovery

Technical data

Specification for Rotary Film Evaporator.

Figures below are for this product only — every item in the range carries its own dimension table.

Rotary Film Evaporator — technical specification
Product type	Rotary film (thin film) evaporator
Model range	LSRE1 to LSRE100 — eight models
Rotating flask capacity	1 L to 100 L
Rotating speed	0–80 rpm to 20–230 rpm, depending on model
Electric motor rating	0.25 HP to 0.5 HP
Condenser cooling surface area	0.10 m² to 1.0 m²
Receiver flask capacity	0.5 L to 20 L
Bath rating	2 kW to 8 kW
Power supply	230 V, 50 Hz
Vacuum seal	PTFE
Ingress protection	IP-55, against dust and fumes
Catalogue reference	LSRE series

Assembly schematic of a rotary film evaporator with heating bath, rotating flask, drive head, condenser and receiver flask — Dimension references — letters match the table.

Rotary Evaporator — technical information for the LSRE range

Model	Rotating flask capacity (ltrs)	Rotating speed (rpm)	Electric motor rating (HP)	Condenser cooling surface area (m²)	Receiver flask capacity (ltrs)	Power supply (Volt / Hz)	Bath rating (kW)
LSRE1	1 L	20–230	0.25	0.10	0.5	230 V / 50 Hz	2
LSRE2	2 L	20–230	0.25	0.10	1	230 V / 50 Hz	2
LSRE3	3 L	20–230	0.25	0.15	1	230 V / 50 Hz	2
LSRE5	5 L	15–150	0.25	0.20	2	230 V / 50 Hz	2
LSRE10	10 L	0–80	0.25	0.20	6	230 V / 50 Hz	4
LSRE20	20 L	0–80	0.5	0.30	10	230 V / 50 Hz	4
LSRE50	50 L	0–80	0.5	0.50	20	230 V / 50 Hz	6
LSRE100	100 L	0–80	0.5	1.0	20	230 V / 50 Hz	8

Transcribed exactly from the catalogue's technical information table. Condenser figures are cooling surface area in m². The catalogue page publishes no vacuum level or bath temperature range for this table — send us your duty and we will confirm it.

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Available on request

Reflux valve for reflux distillation
Continuous feed tube
Manual bath lift operation during power failure

FAQ

Questions we are asked about this item.

Two things. The rotating flask spreads the batch into a thin film over a large surface, so heat transfers quickly and evenly with no local overheating; and the unit runs under full vacuum, which drops the boiling point. Together they let heat sensitive material be concentrated without degrading it.

PTFE. The catalogue calls this out specifically — it is an indigenously developed mechanism, and PTFE is what extends seal life, cuts down time and keeps the distillate uncontaminated.

Yes. The catalogue states it is equally successful for evaporation of suspension in crystallization processes and for drying of powder and granules.

230 V, 50 Hz across the whole range. Bath rating rises from 2 kW on LSRE1 to 8 kW on LSRE100.

Size on the rotating flask: LSRE1 to LSRE5 are bench units, LSRE10 and LSRE20 sit between lab and pilot, and LSRE50 and LSRE100 are pilot scale. Tell us the batch volume and the solvent and we will confirm the model and the condenser duty.