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Ruina Optoelectronic is a trusted supplier of the High-temperature Sterilizer with Adjustable Temperature – the professional choice for parents, tattoo artists, nail technicians, and lab workers seeking chemical-free, precise dry heat sterilization. This guide covers specifications, features, and expert answers.
A High-temperature Sterilizer with Adjustable Temperature provides reliable, chemical-free disinfection for both home and professional environments. Unlike fixed-temperature models, this unit allows precise temperature selection to match different items, ensuring effective sterilization without material damage.
| Parameter | Specification |
| Model | RN-HT12 |
| Brand | Ruina Optoelectronic |
| Temperature Range | 100°C – 180°C (adjustable in 5°C increments) |
| Sterilization Chamber Material | 304 stainless steel |
| Chamber Capacity | 12 liters (fits up to 6 standard baby bottles or 20 medical tools) |
| Timer Settings | 5 – 99 minutes, auto shut-off |
| Display | LED digital touch panel |
| Power | 800W, 220-240V, 50/60Hz |
| Dimensions (L×W×H) | 32cm × 22cm × 18cm |
| Weight | 3.2 kg |
| Safety Features | Overheat protection, dry-burn prevention, child lock |
- Adjustable temperature control – set exactly 120°C for plastic parts or 170°C for metal instruments
- Even heat distribution – dual heating elements eliminate cold spots
- Fast cycle – reaches 160°C in under 3 minutes
- Memory function – retains last used settings
- Low water indicator – alerts before drying out (for steam-assisted models)
| Material Type | Recommended Temperature | Maximum Safe Temperature |
| Silicone (pacifiers, teething rings) | 100-120°C | 180°C |
| Glass (bottles, jars) | 120-140°C | 200°C+ |
| Stainless steel instruments | 160-180°C | 200°C+ |
| Plastic (heat-resistant grades) | 100-120°C | 130°C (check label) |
| Ceramic tools | 140-160°C | 200°C+ |
| Feature | Dry Heat (This Model) | UV Sterilizer | Steam Sterilizer |
| Penetrates crevices | Yes | No (line-of-sight only) | Yes |
| Leaves no moisture | Yes | Yes | No (causes rust) |
| Kills heat-resistant spores | Yes (at 170°C+) | No | No (only ~100°C) |
| Cycle time | 20-40 minutes | 5-10 minutes | 6-10 minutes |
| Suitable for metal tools | Yes (rust-free) | Yes | No (rust risk) |
| Chemical residue | None | None | None |



A: Yes, you can safely sterilize silicone baby products using a High-temperature Sterilizer with Adjustable Temperature. Set the temperature between 100°C and 120°C.
Silicone generally withstands dry heat up to 200°C, but staying below 120°C extends product life. Avoid exceeding 150°C, as higher temperatures may cause discoloration or hardening over time.
Recommended settings for baby items:
| Item Type | Temperature | Time |
| Silicone pacifiers | 100-110°C | 15-20 min |
| Glass baby bottles | 120°C | 20 min |
| Plastic bottle parts (heat-resistant) | 100-110°C | 15 min |
| Teething rings (silicone) | 100-110°C | 15-20 min |
Always check the manufacturer's heat tolerance label on each item before sterilizing.
A: A High-temperature Sterilizer with Adjustable Temperature uses dry heat, not water or UV light.
Key differences:
| Aspect | Dry Heat (This Model) | UV Sterilizer | Steam Sterilizer |
| Sterilization method | Hot air circulation | Ultraviolet light | Moist heat/steam |
| Temperature | 100-180°C | Room temperature | ~100°C |
| Penetration | Deep (air circulates) | Surface only | Deep (steam penetrates) |
| Rust risk | None | None | High |
| Spore kill | Yes (at 170°C+) | No | No |
| Cycle time | 20-40 min | 5-10 min | 6-10 min |
Choose dry heat for:
- Metal instruments (scalpels, scissors, forceps)
- Glass items
- Items that cannot get wet
- Heat-resistant plastics and silicone
Choose UV for:
- Heat-sensitive electronics
- Items that cannot tolerate any heat
Choose steam for:
- Quick cycles on baby bottles (moisture okay)
A: Yes, a High-temperature Sterilizer with Adjustable Temperature can eliminate bacterial spores, but only when set correctly.
Most vegetative bacteria die at 70-80°C. Spores (such as Bacillus or Clostridium species) require 160°C or higher for at least 30 minutes.
Temperature-time guide for spore kill:
| Target | Temperature | Time | Result |
| Vegetative bacteria | 100-120°C | 15 min | 99.9% kill |
| Most viruses | 120°C | 20 min | 99.99% kill |
| Bacterial spores | 160°C | 30 min | 99.99% kill |
| Bacterial spores (full) | 170°C | 45 min | 99.9999% kill (6-log) |
| Fungal spores | 140°C | 30 min | 99.99% kill |
For routine disinfection:
- Baby bottles or utensils: 120°C for 20 minutes
- Medical/dental instruments: 170°C for 45 minutes
Always refer to the temperature-time guide provided with the device.
| User Type | Primary Application |
| Parents | Sterilizing baby bottles, pacifiers, teething rings |
| Tattoo artists | Sterilizing grips, needle holders, forceps |
| Nail technicians | Sterilizing cuticle nippers, pushers, drill bits |
| Dental professionals | Sterilizing mirrors, explorers, small instruments |
| Lab workers | Sterilizing glassware, metal tools, spatulas |
| Home crafters | Sterilizing precision knives, cutting tools |
1. Place on a level, heat-resistant surface – away from flammable materials.
2. Allow 10 cm clearance on all sides for proper ventilation.
3. Do not overload the chamber – leave space for hot air circulation.
4. Always clean tools before loading – remove visible debris.
5. Use the child lock when not in use to prevent accidental operation.
| Interval | Action |
| After each use | Wipe interior with a dry cloth (when cooled) |
| Weekly | Clean with 70% alcohol; check heating elements |
| Monthly | Inspect door seal for cracks or gaps |
| Every 6 months | Calibrate temperature sensor (professional service) |
| Annually | Professional inspection of wiring and heating elements |
Ruina Optoelectronic has been manufacturing professional sterilization equipment for over a decade. Every High-temperature Sterilizer with Adjustable Temperature undergoes rigorous quality control testing before shipping. As a trusted supplier, Ruina Optoelectronic offers:
- Bulk order discounts for clinics, hospitals, and distributors
- Custom branding options for resellers and private label programs
- Fast global shipping with tracking
- Responsive technical support for product inquiries
- Consistent quality across every batch with lot number traceability
- Replacement parts availability – heating elements, trays, and thermostats are long-term stocked
The High-temperature Sterilizer with Adjustable Temperature delivers precise, chemical-free dry heat sterilization for a wide range of applications. Its adjustable temperature range (100-180°C) makes it suitable for delicate silicone items as well as robust metal instruments.
Quick selection tips:
- For baby items and silicone: Use 100-120°C, 15-20 minutes
- For metal medical/dental tools: Use 170°C, 45 minutes
- For glass items: Use 120-140°C, 20-30 minutes
Invest in the High-temperature Sterilizer with Adjustable Temperature from Ruina Optoelectronic today and experience reliable, versatile sterilization that protects both your tools and your clients.
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