UNI BRAZE ไม่ใช่ general induction heating machine — แต่เป็น brazing-specific solution ที่ eldec วิศวกรรมเฉพาะให้ตอบโจทย์ HVAC tube brazing · ต่างจาก UNI HEAT (general heating) และ ECO-LINE (heavy hardening) · บทความนี้ deep-dive: hardware architecture, frequency band, coil ecosystem, control system, eQC integration, ROI rationale ที่ทำให้ Tier-1 HVAC OEM กำลังเปลี่ยนมาใช้
What Makes UNI BRAZE Different
| Feature | Generic Induction Heater | eldec UNI BRAZE |
|---|---|---|
| Frequency Band | Single fixed band | 50-400 kHz adjustable |
| Coil Ecosystem | Custom one-off | Standard set 6-35 mm + custom |
| Brazing Cycle Profiles | Manual ramp/hold | Pre-programmed brazing recipes |
| Pyrometer Feedback | Optional add-on | Integrated optional |
| eQC Industry 4.0 | None | Native |
| Form Factor | Cabinet only | Mobile / cabinet options |
| Application Library | None | HVAC application notes |
| Service Network ASEAN | Limited | SHINRAI Bangkok local |
Hardware Architecture
Generator
UNI BRAZE ใช้ IGBT-based inverter (Insulated Gate Bipolar Transistor) — ไม่ใช่ SCR/Thyristor รุ่นเก่า · ข้อดี IGBT: efficiency 90-95% · fast switching · low THD · stable output · ดูบทความ IGBT vs SCR สำหรับรายละเอียด
Cooling System
- Closed-loop deionized water cooling
- Heat exchanger water-to-air (or water-to-water plant)
- Flow rate ~15-30 L/min depending on power
- Conductivity sensor protection
- Coolant ~200-400 L tank
Control Panel
- 7" or 10" HMI touchscreen
- Recipe library (save/load brazing programs)
- Cycle counter + parameter logging
- Ethernet + USB + optional OPC-UA
- Multi-language UI (English, Thai planned)
Coil Ecosystem — The Real Value
Coil คือ "the magic" ของ induction brazing · UNI BRAZE มาพร้อม standard coil set 6-35 mm tube OD · แต่ custom coil สำหรับ specific joint geometry คือสิ่งที่ทำให้ process ดีจริง
| Coil Type | Application | SHINRAI Capability |
|---|---|---|
| Hairpin Coil | Single tube straight braze | Standard stocked |
| Multi-Turn Cylindrical | Tube + fitting (elbow, tee) | Standard stocked |
| Saddle Coil | Header tube joint | Custom design |
| Split (Hinged) Coil | Multi-port simultaneous | Custom design |
| Internal Coil | End cap, internal joint | Custom + eldec consultation |
| Quick-Change Coil | Fast tube size swap | Standard option |
Frequency Selection — Adaptive Tuning
UNI BRAZE ปรับ frequency อัตโนมัติภายใน 50-400 kHz band เพื่อให้ resonant tank match กับ coil + workpiece · ความหมายคือ:
- Operator ไม่ต้อง manual tune ทุก coil change
- Optimum power transfer ในทุกจังหวะ
- Stable cycle time + Cpk
- Coil life ยาวขึ้น (less mismatch heating)
Brazing Cycle Recipe Library
HMI มี recipe library สำหรับ common HVAC applications:
- Cu-Cu Liquid Line (6-12 mm): 10-12 kW, 200-400 kHz, ramp 5s + hold 3s
- Cu-Cu Suction Line (12-22 mm): 15-20 kW, 100-200 kHz, ramp 7s + hold 4s
- Cu-Cu Header (22-35 mm): 20-25 kW, 50-100 kHz, ramp 10s + hold 5s
- Cu-Brass Service Valve (BAg): 15-18 kW, 100-200 kHz, ramp 6s + hold 4s
- Al-Cu Transition (BAlSi): 12-15 kW, 100-150 kHz, ramp 5s + hold 3s + careful temp
Operator save custom recipe สำหรับ specific tube ของ plant ตัวเอง — เก็บ + load ผ่าน HMI
Recommended HVAC Configuration
Configuration ที่ SHINRAI แนะนำเริ่มต้นสำหรับ Thai HVAC OEM
Range
Adaptive
Coverage
eQC Industry 4.0 Integration
UNI BRAZE option eQC = eldec Quality Control platform · Log + traceability per cycle:
- Power, Frequency, Time, Pyrometer Temp
- Coil ID + Recipe ID + Operator ID
- Joint serial / part ID barcode link
- Pass/Fail flag based on parameter window
- Export OPC-UA, MQTT, Ethernet/IP, REST API
- Connect to plant MES / ERP / quality DB
Use cases: IATF 16949 audit · warranty defense ("we have full traceability of joint #X") · process improvement (Cpk drift detection)
Why HVAC OEMs Are Switching — The Business Case
ทำไม Tier-1 HVAC OEM globally กำลังเปลี่ยนจาก torch มา UNI BRAZE:
- Cycle time 50-75% faster → throughput per line
- Cpk 1.33+ achievable → less rework + warranty
- Leak rate <100 ppm consistent → R32/HFO compliance
- No open flame → insurance + safety class change
- Less skilled labor required → labor shortage mitigation
- CBAM-friendly → EU export competitive
- Industry 4.0 ready → digital plant strategy align
- Service local (SHINRAI) → uptime + spare lead time
SHINRAI Service Offering
- Free process audit + ROI analysis ตาม volume ของท่าน
- Sample joint trial — ส่ง spec มา ทดลองที่ SHINRAI
- UNI BRAZE configuration consultation (power, coil, eQC)
- Quotation + lead time confirmation
- Pre-shipment inspection ที่ eldec Germany (optional)
- Commissioning + acceptance test ในไทย
- Operator training (eldec Dornstadt or on-site)
- Process Cpk validation
- Recurring service contract (PM, spare, coil)
- [email protected], 098-978-9952