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We specialize in the R&D and manufacturing of LED chip heating plates & constant temperature hot plates, being one of the earliest manufacturers in this industry with top-tier quality. Widely applied for PCB preheating, electronics glue dispensing & potting, LED aluminum substrate soldering & chip rework, mold core preheating and all heating processes for electronic components. The whole chassis is laser-cut SUS304 stainless steel, equipped with original Yudian brand temperature controllers, professionally wired by certified electricians. We provide premium products and full after-sales service, welcome new and regular customers to choose our ETOOL hot plates.
ET Series High Precision Digital Constant Temperature Heating Plate
1. Factory Introduction & Structural Advantages
ET series digital heating plates are divided into integrated and split types. We are the direct manufacturer with fully independent R&D and production, no middleman resale, so quality and after-sales service are fully guaranteed.
Modular design for easy maintenance: SUS304 stainless steel enclosure, one-piece 20mm thick machined solid aluminum heating panel, original Yudian PID temperature controller, Taiwan imported heating tubes, Yangming solid state relays, and all stainless steel screws. We adopt top-grade industry components with 12 years of production experience, stable quality and support continuous 24-hour non-stop operation.
2. Product Characteristics
- Original domestic Yudian AI PID intelligent digital temperature control system, high precision, safe, simple and intuitive operation.
- High-quality solid state SSR relay with service life 100 times longer than ordinary mechanical contact relays; fast response, high reliability, silent operation, shock & mechanical impact resistance, excellent moisture-proof, mildew-proof and anti-corrosion performance.
- Multiple premium stainless steel heating tubes filled with nichrome heating wire, ultra-high thermal conductivity, easy maintenance and ultra-low failure rate.
- Solid pure aluminum heating plate with outstanding thermal conductivity and uniform heat distribution; heating efficiency 5–6 times higher than conventional ovens, free of deformation under long-time high temperature operation.
- Full SUS304 stainless steel housing.
3. Technical Specifications & Model List
- Power Supply: AC220V 50Hz
- Temperature Range: Ambient ~ 350℃; High temp model: Ambient ~ 450℃; Ultra-high temp model: Ambient ~ 500℃
- Temperature Control Accuracy: ±1~2%
- Structure Type: Integrated (height 150mm); Split (height 65mm)
| Model | Heating Panel Size (mm) | Max Power | Net Weight |
|---|---|---|---|
| ET-1010 | 100×100×20 | 400W | 3.5Kg |
| ET-1515 | 150×150×20 | 600W | 5Kg |
| ET-2020 | 200×200×20 | 800W | 5Kg |
| ET-3020 | 300×200×20 | 1200W | 7Kg |
| ET-3030 | 300×300×20 | 1800W | 9Kg |
| ET-3625 | 360×250×20 | 1500W | 9Kg |
| ET-4020 | 400×200×20 | 1500W | 8Kg |
| ET-4030 | 400×300×20 | 1800W | 11Kg |
| ET-4040 | 400×400×20 | 2200W | 13Kg |
| ET-5050 | 500×500×20 | 3500W | 20Kg |
| ET-6020 | 600×200×20 | 2200W | 11Kg |
| ET-6030 | 600×300×20 | 2500W | 16Kg |
| ET-6040 | 600×400×20 | 3200W | 22Kg |
| ET-6050 | 600×500×20 | 3800W | 25Kg |
All integrated standard models are in permanent stock. Custom non-standard sizes and temperature grades are available with separate quotation and 2–5 working days lead time.
4. Application Range
- LED industry: aluminum substrate soldering, LED chip welding & rework repair
- Screen repair: LCD & mobile touch screen repair, cable disassembly, touch panel adhesive removal
- Laboratory heating equipment for temperature testing; essential tool for biological, genetic, medical, environmental, biochemical, analytical and university teaching labs
- Drying & baking of test samples across all industrial sectors
- Electronics manufacturing: component preheating, SMD disassembly & rework
- Constant temperature heating for glue dispensing & potting in all electronics industries
- Mold factory mold core preheating
5. Fault Detection & Troubleshooting
Fault 1: No power when switching on
Check whether the fuse is blown, and verify power cord & wall socket connection.
Fault 2: Heating switch turned ON but aluminum plate fails to heat
- Step 1: Test heating tubes
Cut off total power supply first, set multimeter to resistance mode, disconnect each heating tube wire separately for measurement. Normal resistance ranges from tens to 200 ohms. Infinite resistance or near-zero resistance indicates damaged tube, which needs replacement.
- Step 2: Test heating switch
Disconnect main power, switch multimeter to continuity buzzer mode, toggle the power switch and probe both terminals. Continuity on both circuits means the switch is intact; otherwise replace the switch.
- Step 3: Test solid state relay (SSR) – CAUTION: Risk of electric shock!
Power on the hot plate and turn on heating switch. If SSR indicator light lights or flashes, input circuit works normally. If no light, measure DC 12V across SSR terminals 3 & 4; no voltage means faulty temperature controller. Switch multimeter to 750V AC range and measure AC voltage across SSR terminals 1 & 2. Constant 220V AC output without switching indicates shorted SSR, replace immediately.
- Step 4: Test temperature controller
Power on the unit and activate heating mode. If display operates normally, set multimeter to 20V DC range and measure terminals 3 & 4 of SSR. Absence of 12V DC control signal confirms defective temperature controller for replacement.
Fault 3: Temperature reading inaccurate
- Flashing “At” code on SV window: Accidental long press of decimal shift key activated PID auto-tuning function. To cancel, hold decimal shift key for 3 seconds then release; the flashing “At” will disappear automatically, or the controller will auto-terminate tuning within 30 minutes.
- PV window shows code 1312 and SV window displays “oral”: Temperature sensor circuit open circuit, sensor needs replacement.
