Chest freezer MR-DF-MW series

uprightlaboratoryventilated

Product Overview

• Upright or chest ultra-low temperature (ULT) cryogenic freezer with stainless-steel interior and painted steel exterior; on casters for mobility; upright versions include 3 stainless-steel shelves. Designed for biobanking, clinical and research laboratories.
• Rotatable assistant door handle and top door with key lock for controlled access.
• Two-stage foaming and double-seal construction with 155 mm VIP+ core insulation for improved thermal stability.
• Optional accessories: chart recorder, LN2 backup, storage racks/boxes, remote alarm system.

Control System

• Microprocessor-based temperature controller; settable range from -10°C to -105°C; control precision ±1°C; digital temperature display for monitoring.
• Keyboard lock and password-protected configuration; delayed start and safe-stop interval to protect samples during restart sequences.
• Audible and visual alarms: high/low temperature, power failure, low battery, door open, filter blocking, system fault.
• Built-in temperature printer (records 7 days of data). 72-hour battery backup for printer and controller display.
• Power supply standard 220V/50Hz single phase (configurable to 220V/60Hz or 110V 50/60Hz).

Structure Design

• Available as upright or chest type; interior in stainless steel for sample safety; painted steel exterior for durability.
• Security features: rotatable assistant door handle and top door key lock.
• Enhanced insulation: dual-foaming, double-seal design and 155 mm VIP+ core to minimize thermal loss.
• Optional accessories for laboratory workflows: chart recorder, LN2 back-up, storage racks/boxes, remote alarm system.

Refrigeration System

• Imported Danfoss compressor; EBM (Germany) fan motor for circulation.
• Unique refrigerant circulation with unipolar compressor oil-lubrication technology to ensure reliable operation.
• Uses patented refrigerant mixtures (examples: R134a, R404a, R23, R410A, N2); CFC-free.
• Certifications: ISO9001, ISO14001, ISO13485.

Specifications (table)
Model: MR-DF-MW138, MR-DF-MW328
Type: Chest, Chest
Capacity: 138 liters, 328 liters
Temperature recorder: Built-in printer, Built-in printer
External size (W×D×H) mm: 890×1320×1009, 890×2005×1009
Internal size (W×D×H) mm: 470×570×490, 470×1200×582
Input power: 1200W, 1800W
Weight (N.t / G.t): 230/250 kg, 300/320 kg


Technical Specifications

• Series name: MR-DF-MW Series (cryogenic ULT freezers to -105°C).
• Temperature range: settable down to -105°C (operational range -10°C to -105°C).
• Control & recording: microprocessor controller, digital display, built-in printer (7 days record) and 72 h backup for display/printer.
• Alarms: multi-function audible and visual alarms (temperature, power, battery, door, filter, system).
• Construction: stainless-steel interior; painted steel exterior; rotatable handle; key lock.
• Insulation: dual-foaming, double-seal, 155 mm thickness with VIP+ core.
• Refrigeration: imported compressors (Danfoss), EBM fans, patented refrigerant mixtures, oil-lubricated compressor technology.
• Power options: standard 220V/50Hz (configurable to 220V/60Hz or 110V 50/60Hz).
• Optional: LN2 backup, chart recorder, storage racks/boxes, remote alarm system.
• Certifications: ISO9001, ISO14001, ISO13485.
• Available models and key dims/capacities: MR-DF-MW138 (138 L, ext 890×1320×1009 mm), MR-DF-MW328 (328 L, ext 890×2005×1009 mm).