Yamato DC401A Freeze Dryer with 12-Port Flask Mounting Chamber Overview
The Yamato Scientific DC401 Freeze Dryer is a benchtop lyophilizer with a refrigerated cold trap reaching −45°C and roughly 4 L of internal capacity. LabSupplies.com, authorized dealer, ships this configured set with a 12-port flask mounting chamber and five 120 mL dry flasks. Procurement teams gain a complete, ready-to-run drying station for routine sample preservation.
A cylindrical stainless steel trap measuring Dia. 153 × H235 mm captures moisture, while a Pirani vacuum gauge monitors chamber pressure. The Hot Gas Bypass System refreezes and releases trap ice smoothly, eliminating manual scraping. Automatic safety vacuum venting blocks oil backflow on power-off or power failure, protecting samples from contamination.
Air-cooled refrigeration draws 400 W and runs on R404A refrigerant. Power options cover AC115V 12 A or AC220V 7 A at 50/60 Hz. External dimensions of 300 × 450 × 920 mm and a weight near 60 kg suit bench placement, and integrated casters keep the roughly 60 kg unit mobile. Made in Japan.
Key Features
- −45°C cold trap: reaches minimum temperature in about 50 minutes from 20°C, with 0.6 L dehumidifying capacity.
- Hot Gas Bypass defrost: trap ice is refrozen and removed smoothly without manual scraping.
- Contaminant-free venting: automatic safety vacuum venting prevents oil backflow on power-off or power failure.
- 12-port drying chamber: Dia. 195 × H303 mm chamber with 18.5 mm stopper ID, supplied with five 120 mL straight-joint dry flasks.
- Stainless steel trap: cylindrical trap (Dia. 153 × H235 mm) paired with a Pirani vacuum gauge for pressure monitoring.
- Layered safety devices: electric leakage breaker with overcurrent protection, refrigerator overload relay, back-flow prevention valve, and a safety valve linked to the vacuum-pump service receptacle.
How to Choose the Right Freeze Dryer
Selecting a lyophilizer comes down to matching trap performance, sample throughput, and site power to your workflow. Use these axes to confirm the DC401 set fits your bench and protocol.
- Trap temperature: a −45°C trap suits aqueous samples; verify your solvent freezing point falls within range.
- Dehumidifying capacity: the 0.6 L trap capacity defines how much moisture you can collect before defrosting.
- Port count and flask size: the 12-port chamber and 120 mL flasks set your simultaneous sample load per cycle.
- Voltage and power: confirm AC115V 12 A or AC220V 7 A service is available at the installation point.
- Footprint and mobility: 300 × 450 × 920 mm with casters determines bench fit and how easily the unit relocates.
- Safety and contamination control: automatic vacuum venting and back-flow prevention protect samples and the vacuum pump during outages.
Specifications
| Specification | Detail |
|---|---|
| Material | Glass |
| Type | Benchtop freeze dryer with refrigerated cold trap |
| Trap Cooling Temperature | -45°C |
| Time to Reach Minimum Temperature | 50 min (20°C to -45°C) |
| Dehumidifying Capacity | 0.6 L |
| Internal Capacity | ~4 L |
| Refrigeration System | Air cooling, 400 W |
| Refrigerant | R404A (300 g ±5 g) |
| Vacuum Gauge | Pirani vacuum gauge |
| Trap Defrost | Hot Gas Bypass System (ice refrozen and removed smoothly without manual scraping) |
| Contaminant-Free System | Automatic safety vacuum venting prevents oil backflow on power-off or power failure |
| Trap Material / Shape | Cylinder, stainless steel |
| Trap Dimensions | Dia. 153 × H235 mm |
| Exhaust Port | Dia. 17 mm (vacuum pump connection) |
| Operating Ambient Temperature | 5°C to 30°C |
| Safety Devices | Electric leakage breaker with overcurrent protection, refrigerator overload relay, back-flow prevention valve, safety valve linked with vacuum-pump service receptacle |
| Drain | Vacuum hose with stopper |
| Mobility | Highly mobile on casters |
| External Dimensions (W×D×H) | 300 × 450 × 920 mm |
| Weight | ~60 kg |
| Country of Origin | Japan |
| Included Accessories | Vacuum silicone grease, vacuum hose |
| Drying Chamber | 12-port flask mounting chamber (Dia. 195 × H303 mm; stopper ID 18.5 mm) |
| Included Glassware | 5 × 120 mL dry flasks with straight glass joint and cap |
| Power Source | AC115V 12 A / AC220V 7 A (50/60 Hz) |
Available Sizes and Configurations
| SKU | Configuration | Pack |
|---|---|---|
| DC-401A | SET | SET |
Documentation
More in This Series
- Freeze Dryer With Refrigerated Cold Trap Main Unit 4L . Trap Cooling Temp. -45°C
- Dc401 With Manifold A (8 Port) & 5 Pcs. Of 120mL Dry Flask With Straight Glass Joint And Cap
Why Buy From LabSupplies.com
LabSupplies.com is an authorized Yamato Scientific dealer, so you receive a genuine DC401 set backed by the manufacturer warranty. Order directly and ship from USA inventory.
- Authorized Yamato Scientific dealer: genuine unit with full manufacturer warranty.
- In stock: available now and ready to ship.
- Ships from USA inventory: direct dispatch to your lab.
- Lab-equipment specialists: dedicated support for spec and configuration questions.
Frequently Asked Questions
What trap temperature does the Yamato DC401 reach?
The DC401 cold trap reaches −45°C. It cools from 20°C to −45°C in about 50 minutes and offers a 0.6 L dehumidifying capacity.
How many samples can the 12-port chamber hold at once?
The 12-port flask mounting chamber holds up to twelve flasks at once. This set ships with five 120 mL dry flasks featuring straight glass joints and caps, and the chamber measures Dia. 195 × H303 mm with an 18.5 mm stopper ID.
What power supply does the DC401 require?
The DC401 runs on AC115V 12 A or AC220V 7 A at 50/60 Hz. Its air-cooled refrigeration system draws 400 W using R404A refrigerant.
What are the cold trap material and dimensions?
The cold trap is a stainless steel cylinder measuring Dia. 153 × H235 mm. A Dia. 17 mm exhaust port connects to the vacuum pump.
How is trap ice removed on the DC401?
Trap ice is cleared by the Hot Gas Bypass System, which refreezes and removes ice smoothly without manual scraping. Defrost runs without hand tools.
What are the external dimensions and weight of the DC401?
External dimensions are 300 × 450 × 920 mm (W×D×H) and weight is approximately 60 kg. Integrated casters keep the benchtop unit highly mobile. Made in Japan.