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
