ROI ของการเปลี่ยน torch → induction ไม่ได้มาจาก single metric — แต่เป็น combined savings 8 categories: cycle time, warranty, insurance, gas, energy, CBAM, labor, throughput · 1 station induction (~EUR 80K) สามารถ payback ใน 12-24 เดือน ที่ volume 100K-500K joints/year · บทความนี้ build full financial model
Capex Investment Breakdown
| Item | Range (per station) | Note |
|---|---|---|
| UNI BRAZE generator | EUR 35,000-70,000 | 10-25 kW |
| Coil set (initial) | EUR 5,000-15,000 | 4-6 sizes |
| Custom coil per product | EUR 2,000-8,000 | Per design |
| Fixture per product | EUR 5,000-15,000 | Mass production |
| Installation + commissioning | EUR 10,000-15,000 | SHINRAI on-site |
| Operator training | EUR 5,000 | 3-5 days |
| eQC integration (optional) | EUR 8,000-12,000 | Industry 4.0 |
| Total Typical | EUR 60,000-100,000 | Per station |
*ค่าประมาณ — actual ขึ้นกับ configuration, volume discount, automation level. ติดต่อ SHINRAI สำหรับ detailed quote
Savings — 8 Categories Quantified
1. Cycle Time → Throughput
- Torch 90 sec → induction 25 sec = 3.6x throughput
- 1 line 100 unit/shift → 360 unit/shift
- Labor saving: 2 op × USD 15K = USD 30K/year per station
- หรือ avoid Capex new line ($500K-1M)
2. Warranty Cost → Brand Protection
- Field failure 1-3% (torch) → 0.3-0.5% (induction)
- 1 point reduction × 1M unit/year × USD 500/unit = USD 5M/year
- Per-station portion: USD 50-500K depending on volume share
3. Insurance Premium → Direct Annual
- Open-flame area = higher insurance class
- Premium uplift 10-20% สำหรับ torch area
- Saving USD 50-200K/year per plant typical
4. Gas Cost → Direct Recurring
- Acetylene + oxygen ~USD 0.05-0.10/joint
- Eliminate cylinder rental + transport license
- 500K joint/year = USD 25-50K saving
5. Energy Cost → Smaller but Adds Up
- Induction electricity ~USD 0.02-0.04/joint
- Net energy saving USD 0.03-0.06/joint
- 500K joint = USD 15-30K/year
6. CBAM Avoidance → EU Export
- ~70 g CO₂ saving/joint (torch direct emission)
- 1M unit × 50 joints × 70g = 3.5 kt CO₂/year
- EU ETS 100 EUR/t × phase-in 25% (2030) = USD 100K direct
- Full phase 2034: USD 350K-500K direct + brand premium
7. Labor Skilled → Cost + Availability
- Skilled torch brazer salary +30-50% vs unskilled
- Recruitment + training time
- Induction = recipe-controlled = lower skill requirement
- USD 5-10K/year per operator differential
8. Fume Extraction Infrastructure
- Torch flux + filler vapor → ducted exhaust required
- HEPA filter + scrubber maintenance
- Avoided maintenance USD 5-15K/year
ROI Calculator — 3 Scenarios
| Scenario | Volume (joints/yr) | Total Saving/yr | Payback |
|---|---|---|---|
| Tier-3 component maker | 50,000 | USD 30-50K | 20-30 months |
| Mid-size HVAC OEM | 250,000 | USD 150-250K | 6-12 months |
| Tier-1 HVAC plant | 1,000,000+ | USD 600K-1.5M | 3-6 months |
Reality Check: Tier-3 component makers ใน Thailand ที่ volume <50K joint/year — induction ROI marginal · Tier-1 OEM (Daikin, Mitsubishi) volume 1M+ — ROI ชัดเจน, payback < 6 เดือน · Gradual rollout: 1-2 station ก่อน → expand เมื่อ savings ยืนยัน
Volume Threshold — Where it Makes Sense
- <50K joint/year: ROI marginal, manual/torch อาจ OK · ใช้ induction เฉพาะ critical joint (R-32, EU export)
- 50K-200K: ROI clear, single-station + manual load
- 200K-500K: Multi-station + semi-automation
- 500K-1M: Full automated cell + robot
- 1M+ (Tier-1): Multi-cell + recipe library + eQC + MES
Financial Model — Sample Tier-1 Plant
Plant assumption: 1M unit/year × 50 joints/unit = 50M joints/year · 10 station required (5M joints/station capacity) · Capex EUR 80K × 10 = EUR 800K (~USD 880K)
Annual Savings
- Cycle time / throughput: USD 300K (avoid 1 new line Capex)
- Warranty: USD 4M (1% × 1M × USD 500 - 0.3% × 1M × USD 500 = USD 3.5M, but new failures avoided)
- Insurance: USD 150K
- Gas + energy: USD 75K
- Labor skilled: USD 100K
- CBAM (2030 phase): USD 100K
- Fume infrastructure: USD 30K
- Total: USD 4.75M/year
Payback
Capex USD 880K / Saving USD 4.75M = ~2.2 months · Conservative scenario (warranty saving 50% of model): payback ~6 months · IRR > 100% · NPV positive year 1
ROI BENCHMARK · TIER-1 HVAC PLANT
Typical Financial Performance
1M unit/year EU-export HVAC plant — full induction conversion
USD 880K
Capex
10 stations
10 stations
USD 4.75M
Annual
Savings
Savings
2-6 mo
Payback
Period
Period
Implementation Roadmap
- Month 1-2: Audit + pilot study (1 station Tier-3 simple line)
- Month 3-4: Pilot validation + Cpk + savings confirmation
- Month 5-8: Phase 2 expansion (multi-station main line)
- Month 9-12: Full automation + eQC integration
- Month 12-18: CBAM documentation + optimization
- Month 18+: Continuous improvement + cycle time push
SHINRAI ROI Analysis Service
- Plant audit + baseline cost (existing torch)
- Induction process modelling + cycle time
- Capex quote ตาม configuration
- Savings calc ทุก category
- Payback + IRR + NPV analysis (Excel + executive summary)
- Implementation roadmap
- Financing option consult (eldec lease, partner)
- [email protected], 098-978-9952