The SP VirTis Ultra 35L is a pilot lyophilizer with a single product chamber design, which allows for larger batches and product uniformity. Shelf counts run from 4 to 15, so capacity can be matched to the real throughput rather than the other way around.
Key features
- Compact design for easy installation
- Single product chamber design allows for larger batches and product uniformity
- Available with a Merlin or LyoS 2.0 control system
- Optional bottom-up hydraulic stoppering system
- Narrow, non-cleanroom configuration available
Specifications
| Item | Value |
|---|---|
| Lowest shelf temperature (50 / 60 Hz) | ≤ -67 °C / -70 °C |
| Shelf temperature control range | -55 to 65 °C (controlled within ± 0.5 °C) |
| Shelf pull-down from 20 °C to -40 °C | ≤ 40 minutes |
| Lowest condenser temperature (50 / 60 Hz) | ≤ -82 °C / -85 °C |
| Maximum condenser capacity | ≥ 35 L (surface area 750 in² / 4,838 cm²) |
| Maximum ice condensing capacity in 24 hours | ≥ 20 L (deposition rate ≥ 0.83 L/hour) |
| Condenser pull-down from 20 °C to -45 °C | ≤ 25 minutes |
| Number of compressors | 2 (1.5 + 1.5 hp) |
| Vacuum time to 100 mTorr | ≤ 30 minutes (rate of rise ≤ 30 mTorr/hour) |
| Lowest system vacuum | ≤ 15 mTorr |
| Temperature uniformity | ± 1.0 °C |
| Construction | 316L stainless steel shelves, product chamber and condenser chamber |
| Standard configuration (W × D × H) | 127 × 98 × 192 cm, max. weight 909 kg |
| Cleanroom configuration | 64 × 196 × 192 cm |
| Vapor port | 15.2 cm (6 in) |
| Stoppering | Bottom-up hydraulic |
Shelf configuration
| Shelves | Shelf area | Shelf clearance (bulk / stoppering) |
|---|---|---|
| 4 shelves | 5,686 cm² (6.12 ft²) | 214 mm (8.44 in) |
| 6 shelves | 8,528 cm² (9.18 ft²) | 139 mm (5.51 in) |
| 8 shelves | 11,371 cm² (12.24 ft²) | 102 mm (4.04 in) |
| 10 shelves | 14,214 cm² (15.3 ft²) | 79 mm (3.15 in) |
| 12 shelves | 17,057 cm² (18.36 ft²) | 65 mm (2.56 in) |
| 15 shelves | 21,331 cm² (22.96 ft²) | 50 mm (1.97 in) |
Shelf size (W × D): 274.3 mm × 520.7 mm.
SP VirTis Ultra 35L is available in Thailand from Thai Unique, with installation, calibration and after-sales service handled by our own team here in the country. For details and a quotation, call 0-2629-0191-6 or email customer.service@thaiunique.com.
All specifications are taken from the manufacturer’s own documentation and are based on units operating at an ambient room temperature of approximately 20 °C; SP recommends an operating range of 15-25 °C. SP VirTis reserves the right to change specifications without notice.
SP VirTis Ultra 35L in Thailand
Thai Unique supplies and supports the SP VirTis Ultra 35L, a pilot freeze dryer in Thailand for teams developing freeze-drying (lyophilization) cycles and scaling them from bench trials towards production, with one product chamber and shelf counts that can be specified from 4 to 15.
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Where a pilot freeze dryer is used in Thailand
Based on the specifications above, the Ultra 35L suits laboratories that:
- Need to dry a whole batch inside one chamber instead of splitting it across separate compartments, so every tray or vial in the run sees the same conditions.
- Work with formulations whose cycles depend on tight shelf control, holding anywhere from -55 to 65 °C within ± 0.5 °C and staying within ± 1.0 °C across the stack.
- Need condenser headroom for solvent-heavy runs, with at least 35 L of condenser capacity and around 20 L of ice collected over 24 hours.
- Want vials closed under vacuum without opening the chamber, using the optional bottom-up hydraulic stoppering system, and need the machine to fit a narrow or non-cleanroom room at 64 × 196 × 192 cm.
Service and support in Thailand
An analytical instrument does not end at delivery. Thai Unique supports yours from within the country.
- Installation and calibration — our engineers install the system, run performance verification and calibrate it for your actual workload
- Scheduled preventive maintenance — year-round cover under a Service Contract, with costs you can budget for
- Repairs with genuine spare parts — experienced technicians using original components from the manufacturer
- Operator training — classroom and hands-on training on your own instrument
- Sample testing and method verification — we run your real samples and verify the method before you commit
Frequently asked questions
How many shelves can the Ultra 35L be built with, and what does that do to the space between them?
The chamber can be specified with anywhere from 4 shelves (5,686 cm² of shelf area, 214 mm clearance) up to 15 shelves (21,331 cm², 50 mm clearance), so more capacity means less headroom per shelf. Talk to our team here if you want help matching a configuration to your container height.
Why buy SP VirTis Ultra 35L from Thai Unique rather than direct from the manufacturer?
Because the people who look after it are here. Installation, calibration, scheduled maintenance, repairs with genuine parts and operator training are all handled by our team in Thailand, without routing every request overseas.
Can we test our own samples before deciding?
Yes. Our sample testing and method verification service runs your real samples so you can see the results this pilot freeze dryer gives on your workload before you buy.
How much does it cost, and how do we request a quotation?
Pricing depends on the configuration, accessories and the scope of work in your laboratory. Tell our sales team what you need to analyse and how many samples you run per day, and we will propose a configuration together with lead time and service terms.
Request a quotation
Tell us what you need to analyse, how many samples you run per day and the sample types involved. Our team will propose the SP VirTis Ultra 35L configuration that fits your work, with lead time and service terms — use the Request Quote button below, or contact our team directly.