Laboratory Rotary Evaporator, RV-21A
Special Price
R 30,475.00
Regular Price
R 34,635.93
- Rotation Speed: 20–300 rpm
- Ultimate Vacuum: 8 mbar
- Evaporating Speed: 22 ml/min
- Water Bath Range: RT+5–99°C
- Oil Bath Range (optional): RT+5–180°C
- Heating Power: 1 000 W
- Electrical Input: 220 V, 50/60 Hz
- Condenser: Snake-type, 0.15 m2 area
- Included Glassware: 1 L rotary bottle, 1 L collecting bottle
- Vacuum Seal: PTFE and Teflon coating
- Motor: DC brushless
- Standard Compliance: DIN 12880 (Class 2 independent temperature safety device)
- Vacuum Regulator: Available
- Recirculating chiller and vacuum pump: Available optionally
Need a customised solution?
Optional accessories are available for purchase separately. If your order needs a customised configuration, our technical specialists will follow up with full details before your order is finalised. Contact us via the enquiry form or sales@lasec.com.
Installation, training and special delivery
Some products require installation, training, or special delivery (such as tail-lift trucks, extra labour, or hazardous material packaging). If your order needs this, we'll contact you with the additional cost before dispatch, so your final invoice may differ from the listed price.
Ordering from outside South Africa
Online ordering is currently limited to South African customers, but our full range is still available. Log an enquiry or email international@lasec.com and our international sales team will assist you through our traditional sales channels.
DISCLAIMER: All product images are for illustrative purposes only. Actual products may vary slightly in colours, controls, and visible features.
Availability:In stock
Only 1 left
SKU
IBLPRV-21A
Product Overview
Rotary Evaporation System for Distillation and Separation Applications
The RV-21A is a rotary evaporator built for distillation and separation work in medicinal chemistry, pharmaceutical development, chromatography, and petrochemical laboratories. Evaporation is accelerated through three combined mechanisms: reducing system pressure to lower the solvent's boiling point, rotating the sample flask to increase its effective surface area, and applying controlled heat to the solution. The evaporated solvent then passes through a cooled glass condenser, where it recondenses for collection.
- Rotation Speed: 20–300 rpm
- Ultimate Vacuum: 8 mbar
- Evaporating Speed: 22 ml/min
- Water Bath Range: RT+5–99 °C
Key Features
- Single-handed operation: Simple design supports manual or automatic one-handed operation.
- PTFE sealing system: A dedicated PTFE seal provides thermal stability, reduces corrosion, and supports consistent day-to-day operation.
- Dual heating mode: The bath operates in water or oil mode, with overheat protection built in.
- PID controller: PID control with straightforward parameter entry and a large LCD display.
- Automatic lift: Motorised lift mechanism with LCD speed display and a control knob.
- DC brushless motor: The drive is powered by a DC brushless motor for smooth, consistent rotation.
- Vacuum regulator: A vacuum regulator is available for finer control of system pressure.
- Independent temperature safety device: Built to DIN 12880, Class 2, for an added layer of thermal safety during operation.
Reference performance conditions: a rotation speed of 120 rpm, water bath set to 40 °C, coolant set to 10 °C, and a 1 L rotary bottle charged with 500 ml water, at an ambient temperature of 20 °C and AC 220 V 50 Hz.
Application Areas
The RV-21A is suited to distillation and separation work across medicinal chemistry, pharmaceutical development, chromatography, and petrochemical laboratories.
| Performance | |
|---|---|
| Rotation speed | 20–300 rpm |
| Water bath temperature range | RT+5–99 °C |
| Oil bath temperature range (optional) | RT+5–180 °C |
| Evaporating speed | 22 ml/min |
| Ultimate vacuum | 8 mbar |
| Control and Drive | |
| Speed setting | LCD display with control knob |
| Lifting mode | Automatic |
| Motor | DC brushless motor |
| Sealing system | PTFE sealing system |
| Structure and Composition | |
| Condenser type | Snake-type condenser |
| Condensate area | 0.15 m² |
| Glassware included | 1 L rotary bottle, 1 L collecting bottle |
| Joints/clamps | TS 29/38 bottle clamp, ball joint S35/20 |
| Vacuum seal material | PTFE and Teflon coating |
| Vacuum regulator | Available |
| Heating Bath | |
| Interior water bath size | Ø 230 mm × 130 mm |
| Bath material | Stainless steel, corrosion-resistant coating |
| Heating power | 1 000 W |
| Electrical input | 220 V, 50/60 Hz |
| Overheat protection | Included |
| Compliance | |
| Standard | DIN 12880 |
| Safety device | Independent temperature safety equipment, Class 2 (DIN 12880) |
Frequently Asked Questions about the ULTRA-TURRAX® Tube Drive P Control Workstation
Q: How does the RV-21A rotary evaporator work?
A: Evaporation is accelerated by combining three effects: reducing pressure within the system to lower the solvent’s boiling point, rotating the sample flask to increase its effective surface area, and applying controlled heat to the solution. The resulting vapour then passes through a cooled glass condenser, where it recondenses for collection.
Q: What is the rotation speed range?
A: The RV-21A operates across a rotation speed range of 20–300 rpm.
Q: Can the unit be used with both water and oil baths?
A: Yes. The heating bath runs in a water mode across RT+5–99°C, and an optional oil mode across RT+5–180°C, with overheat protection.
Q: What is the ultimate vacuum achievable?
A: The RV-21A reaches an ultimate vacuum of 8 mbar.
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