The Yamato LTF-901U is an Upright (vertical, front-opening) low-temperature freezer delivering a guaranteed operating range of 0°C to -40°C (+32°F to -40°F) with 28 cu.ft. (792 L) of usable storage. Every LTF freezer is fully tested for 7 days, and the constant ultra-low setpoint is guaranteed even in warm (+30°C) ambient environments. Built in the USA, the LTF-901U pairs a single-stage hermetic compressor with digital dual-display control and a battery-backed audible/visual alarm for dependable sample protection in clinics, research labs, small laboratories, hospital rooms, and medical clinics. This is capital equipment — freight-delivered and quote-based.
Key Specifications
| SKU | LTF-901U |
| Style | Upright (vertical, front-opening) |
| Temperature range | 0°C ~ -40°C / +32°F ~ -40°F |
| Capacity | 792 L (28 cu.ft.) |
| Rack capacity | 30 racks |
| Shelving | 4 adjustable (5 compartments) |
| Internal dimensions | 38" x 25" x 51.25" (96 x 63 x 130 cm) |
| External dimensions | 54" x 37" x 79.5" (137 x 93 x 201 cm) |
| Temperature control | Digital control with two temperature displays (one shows set temperature, one shows actual chamber temperature) |
| Alarm system | Battery-operated audible + visual alarm; over- and under-temperature settings; alarm-silencing switch; battery-test switch; relay for remote alarm hook-up |
| Refrigeration | Single-stage system with one hermetic compressor; CFC- & HCFC-free refrigerants |
| Construction | Chamber: 14-ga. zinc-coated galvanized steel. Exterior: 16-ga. steel, powder-coated cool-gray finish |
| Defrost | Manual defrost |
| Voltage | 115V / 208V / 230V, 60Hz, 1-phase; 220V, 50Hz or 60Hz, 1-phase (specify at order) |
| Origin | Made in the USA |
| Optional accessories | Chart recorder; CO₂ and LN₂ back-up system; racks; cold-safety gloves |
| List price | $24,650.00 |
Application Profile
The LTF-901U's 28 cu.ft. / 792 L working volume and 30-rack capacity suit labs needing reliable -40°C storage without ULT (-80°C) cost. Per the LTF Series brochure, primary uses include:
- Clinics and medical clinics — reagent, control, and specimen storage at a validated cold setpoint
- Research laboratories — sample, enzyme, and biological-material storage in the 0°C to -40°C band
- Small laboratories — primary cold storage where footprint and simplicity matter
- Hospital rooms and cold-chain sample storage — continuous -40°C hold with battery-backed alarm and remote-alarm capability for excursion protection
The upright (vertical, front-opening) format with 4 adjustable (5 compartments) organizes inventory into discrete, browsable compartments — favoring frequent-access workflows and a smaller floor footprint than an equivalent-capacity chest.
Design Architecture
Refrigeration. A single-stage refrigeration system with one hermetic compressor drives the 0°C to -40°C range using CFC- and HCFC-free refrigerants — a simpler, more serviceable mechanical package than cascade ULT systems, matched to a -40°C lowest guaranteed setpoint.
Control and monitoring. Digital control with two temperature displays shows the set temperature and the actual chamber temperature simultaneously, so operators verify both target and real conditions at a glance. The battery-operated alarm system issues an audible and visual signal on mechanical or electrical failure, provides over- and under-temperature limits, an alarm-silencing switch, and a battery-test switch. A relay for remote-alarm hook-up lets the freezer tie into facility monitoring or building alarm systems.
Construction. The interior chamber is 14-ga. zinc-coated galvanized steel; the exterior is 16-ga. steel with a powder-coated cool-gray finish for durability in demanding lab and clinical environments.
Validation and envelope. Every LTF unit is fully tested for 7 days and holds its ultra-low setpoint even in warm (+30°C) ambient environments. Confirm doorway, elevator, and floor-load clearances against the 54" x 37" x 79.5" external footprint before delivery.
Frequently Asked Questions
What temperature range does the LTF-901U hold? 0°C to -40°C (+32°F to -40°F), and it maintains its setpoint even in warm +30°C ambient environments. Every unit is fully tested for 7 days before shipping.
What is the storage capacity? 792 L (28 cu.ft.), holding up to 30 racks across 4 adjustable shelves (5 compartments).
Is this an upright or chest freezer? Upright — a vertical, front-opening cabinet that organizes inventory into browsable compartments with a smaller floor footprint than an equivalent-capacity chest.
What voltage does it require? 115V / 208V / 230V at 60Hz, or 220V at 50Hz or 60Hz, single-phase — specify the required voltage and plug type at order.
Does it use manual or automatic defrost? Manual defrost, driven by a single-stage hermetic compressor using CFC- and HCFC-free refrigerants.
Ordering & Configuration
The LTF-901U ships as a complete, factory-tested upright-style low-temperature freezer with digital dual-display control, battery-backed alarm, remote-alarm relay, and 30-rack capacity across 4 adjustable (5 compartments). Optional accessories — chart recorder, CO₂/LN₂ back-up, racks, and cold-safety gloves — are configured on the quote.
Confirm at quote (freight, quote-based): select the electrical service (115V / 208V / 230V at 60Hz, or 220V at 50/60Hz, single-phase) to match facility power; plan freight logistics and doorway/elevator clearance against the 54" x 37" x 79.5" external footprint; specify a CO₂ or LN₂ back-up strategy for critical inventory; arrange remote-alarm relay tie-in to facility monitoring and a chart recorder if continuous documentation is required; and confirm rack quantity and cold-safety gloves for the intended tube/box format. Lead time and warranty are confirmed on the formal quote per Yamato standard capital-equipment terms.
Request a quote for the LTF-901U. As freight-delivered capital equipment, this freezer is configured and priced on a formal quote — tell us your voltage, placement, backup, and monitoring requirements and we'll confirm delivered price and lead time. List price: $24,650.00.
Voltage options: Multiple electrical configurations are published for the LTF line (115V / 208V / 230V at 60Hz; 220V at 50Hz or 60Hz, single-phase). Specify required voltage and plug type at order.
