Market Forge STM-E Manual Autoclave
High-capacity manual autoclave with fixed-temperature steam sterilization.
The Market Forge STM-E Manual Autoclave is a simple, dependable steam sterilizer designed for facilities that need consistent 250°F (121°C) sterilization without digital complexity. Built with the same high-capacity chamber as Market Forge’s advanced models, the STM-E delivers exceptional throughput in a compact footprint, outperforming many tabletop autoclaves by up to five times in usable capacity.
With fixed-temperature operation, analog monitoring, and automatic safety controls, the STM-E is ideal for users who value reliability, ease of training, and long-term durability over programmable features.
Key Benefits
- Fixed-Temperature Reliability
Maintains a constant 250°F (121°C) sterilization temperature for consistent results. - High Capacity, Compact Design
3 cu. ft. (85.5 L) chamber offers significantly more usable space than typical tabletop units. - Manual, Straightforward Operation
Analog gauges and timer reduce complexity and minimize user error. - Built-In Safety Systems
Low-water cutoff, safety valve, pressure monitoring, and automatic pressure exhaust at cycle end. - Durable Commercial Construction
Polished stainless steel exterior and welded aluminum chamber designed for heavy use.
Standard Features
Automatic temperature control
- Fixed sterilization temperature: 250°F (121°C)
Analog gauge display
- Thermometer range: 180°–300°F (82°–149°C)
- 0–30 lb steam pressure gauge
- 0–60 minute mechanical timer
- Safety valve and low-water cutoff
Thermostatic steam trap
- Signal light for operation status
- Flat perforated steam baffle for even steam distribution
- Manual water fill
- Removable pan supports
- Adjustable 4”–6” bullet feet
Door Design & Safety
- Self-sealing stainless steel door prevents opening until pressure is fully exhausted
- Heavy-duty 12-gauge stainless steel door
- Tool-free door removal for easy cleaning
- One-piece molded door gasket, replaceable without tools or adhesives
Sterilizing Chamber
- 3/16” wall welded aluminum cylinder
- Internal dimensions: 16” diameter x 26” length
- Door opening: 13.5” wide x 11” high
- Total capacity: 3 cu. ft. (85.5 liters)
- Designed for efficient steam circulation and consistent heat distribution
Operation
- The STM-E features a fully automatic, time-controlled sterilization cycle with built-in temperature regulation at 250°F (121°C). All operating controls are conveniently located on the top front panel for easy access.
- At the end of each cycle, pressure is automatically exhausted and power is shut off for safety. A slow exhaust option is available for sterilizing liquids and heat-sensitive media.
Electrical Requirements
- Rated at 12 kW at 236V
Configurable for:- 208 or 240V, 3-wire, 1-phase, 60 Hz
- 208 or 240V, 4-wire, 3-phase, 60 Hz
Applications
Well-suited for facilities that require consistent sterilization with minimal training:
- Teaching and academic laboratories
- Research facilities
- Clinical and medical environments
- Industrial and quality control labs
- General laboratory sterilization of instruments, glassware, and media
