Description
The Cress C133 and C136 are precision-engineered benchtop furnaces designed for demanding industrial and laboratory use. Equipped with auto-tuning microprocessor PID control, side-mounted iron‑aluminum alloy elements, and safety-integrated door switches, these units deliver reliable performance up to 2250 °F (2000 °F continuous).
Both models feature heavy-gauge steel construction with counter-balanced doors and rope seals that ensure operator safety and thermal efficiency. The C133 includes a floor-mounted refractory hearth for extra durability, while the C136 has raised side elements to protect against spillage damage.
Each furnace offers convenient 3 kW power via 240 V (with 208 V or 480 V options), is plug-ready with cord included, and comes backed by a 1-year warranty. Their compact size (~200 lb) and high-performance output make them essential tools in toolrooms, labs, jewelry, metallurgy, and materials testing applications.
Key Features
- Max Temp: 2250 °F intermittent / 2000 °F continuous
- Chamber Dimensions:
- C133: 11.5″ W × 13″ L × 8″ H
- C136: 10.5″ W × 13″ L × 8″ H
- Power: 3 kW at 240 V (208/480 V optional)
- Elements: Side-wall iron-aluminum alloy; C133 adds floor element; C136 has raised elements to prevent spillage damage
- Safety: Dual door-limit switches with zero-voltage relay cut-off
- Construction: Heavy gauge steel with firebrick backed by 1800 °F block
- Controller: Auto-tuning PID microprocessor
- Portability & Size: ~200 lb; compact benchtop design
- Warranty: 1-year limited
Model Variations & Specs
| Model | Chamber (W×L×H) | Elements | Power / Voltage |
|---|---|---|---|
| C133/PM3T | 11.5″ × 13″ × 8″ | Side & bottom with hearth | 3 kW, 240 V (208/480 V optional) |
| C136/PM3T | 10.5″ × 13″ × 8″ | Side-wall raised 1.75″ above chamber floor | 3 kW, 240 V (208/480 V optional) |





