Oil-Immersed Transformer Price List – Q3 2026 China Supplier Prices
Oil-Immersed Transformer — EXW / FOB Qingdao reference prices.
Copper-wound items are linked to the daily LME copper price (base ≈ $14,213.965/t, current $14,218.55/t). Copper-wound prices above are shown at today's copper price and refresh with the daily copper update.
Small ratings (below the 100 kVA list minimum). Prices for 10–80 kVA are obtained by extrapolating this list's own capacity-price curve backwards (P = P₁₀₀ × (S/100)^b, b fitted between the first and last published rating, clamped to 0.55–1.0). Unit price rises as the rating falls — tank, bushings, tap changer and routine-test cost are largely independent of capacity. The configurator (qdtb-transformer.com/configurator) uses exactly the same model, so the two never disagree.
Voltage class changes the price. 34.4 / 34.5 kV designs belong to the 36 kV insulation system (Um = 40.5 kV, 40.5 kV-class switchgear) and are priced with the 35 kV-class coefficient — currently +35% against the 10 kV class at the same kVA rating, before any impedance / vector-group / cooling premium. Do not compare a 34.5 kV quotation with a 10 kV one line-for-line.
S9 COPPER — per kVA
| Capacity (kVA) | Price (USD) |
|---|---|
| 10 | $546 |
| 15 | $712 |
| 20 | $860 |
| 25 | $996 |
| 30 | $1,122 |
| 40 | $1,356 |
| 50 | $1,570 |
| 63 | $1,827 |
| 80 | $2,138 |
| 100 | $2,475 |
| 160 | $3,178 |
| 200 | $3,603 |
| 315 | $4,769 |
| 400 | $5,721 |
| 500 | $6,682 |
| 630 | $8,306 |
| 800 | $9,572 |
| 1000 | $10,612 |
| 1250 | $13,001 |
S9 ALUMINUM — per kVA
| Capacity (kVA) | Price (USD) |
|---|---|
| 10 | $350 |
| 15 | $449 |
| 20 | $536 |
| 25 | $614 |
| 30 | $687 |
| 40 | $820 |
| 50 | $941 |
| 63 | $1,084 |
| 80 | $1,255 |
| 100 | $1,440 |
| 160 | $1,817 |
| 200 | $2,008 |
| 315 | $2,620 |
| 400 | $3,085 |
| 500 | $3,584 |
| 630 | $4,350 |
| 800 | $5,071 |
| 1000 | $5,801 |
| 1250 | $6,798 |
S11 COPPER — per
| Capacity (unit) | Price (USD) |
|---|---|
| 10 | $460 |
| 15 | $626 |
| 20 | $777 |
| 25 | $920 |
| 30 | $1,056 |
| 40 | $1,313 |
| 50 | $1,554 |
| 63 | $1,850 |
| 80 | $2,216 |
| 100 | $2,623 |
| 200 | $3,819 |
| 315 | $5,055 |
| 500 | $7,083 |
| 630 | $8,804 |
| 800 | $10,146 |
| 1000 | $11,250 |
| 1600 | $17,252 |
| 2000 | $21,135 |
| 3150 | $31,951 |
| 5000 | $48,646 |
| 6300 | $60,028 |
S11 ALUMINUM — per
| Capacity (unit) | Price (USD) |
|---|---|
| 10 | $340 |
| 15 | $443 |
| 20 | $534 |
| 25 | $618 |
| 30 | $696 |
| 40 | $840 |
| 50 | $971 |
| 63 | $1,129 |
| 80 | $1,319 |
| 100 | $1,526 |
| 200 | $2,128 |
| 315 | $2,777 |
| 500 | $3,799 |
| 630 | $4,611 |
| 800 | $5,375 |
| 1000 | $6,149 |
| 1600 | $8,588 |
| 2000 | $10,064 |
| 3150 | $13,899 |
| 5000 | $19,302 |
| 6300 | $22,748 |
S13 COPPER — per
| Capacity (unit) | Price (USD) |
|---|---|
| 10 | $487 |
| 15 | $661 |
| 20 | $822 |
| 25 | $973 |
| 30 | $1,116 |
| 40 | $1,387 |
| 50 | $1,642 |
| 63 | $1,955 |
| 80 | $2,342 |
| 100 | $2,772 |
| 200 | $4,035 |
| 315 | $5,341 |
| 500 | $7,484 |
| 630 | $9,302 |
| 800 | $10,720 |
| 1000 | $11,886 |
| 1600 | $18,228 |
| 2000 | $22,331 |
| 3150 | $33,760 |
| 5000 | $51,399 |
| 6300 | $63,426 |
S13 ALUMINUM — per
| Capacity (unit) | Price (USD) |
|---|---|
| 10 | $359 |
| 15 | $468 |
| 20 | $565 |
| 25 | $653 |
| 30 | $736 |
| 40 | $888 |
| 50 | $1,026 |
| 63 | $1,193 |
| 80 | $1,395 |
| 100 | $1,613 |
| 200 | $2,249 |
| 315 | $2,934 |
| 500 | $4,014 |
| 630 | $4,872 |
| 800 | $5,680 |
| 1000 | $6,497 |
| 1600 | $9,074 |
| 2000 | $10,634 |
| 3150 | $14,686 |
| 5000 | $20,394 |
| 6300 | $24,035 |
S20 COPPER — per
| Capacity (unit) | Price (USD) |
|---|---|
| 10 | $587 |
| 15 | $797 |
| 20 | $990 |
| 25 | $1,172 |
| 30 | $1,345 |
| 40 | $1,672 |
| 50 | $1,979 |
| 63 | $2,356 |
| 80 | $2,823 |
| 100 | $3,341 |
| 200 | $4,865 |
| 315 | $6,437 |
| 500 | $9,021 |
| 630 | $11,213 |
| 800 | $12,922 |
| 1000 | $14,327 |
| 1600 | $21,971 |
| 2000 | $26,917 |
| 3150 | $40,692 |
| 5000 | $61,954 |
| 6300 | $76,452 |
S20 ALUMINUM — per
| Capacity (unit) | Price (USD) |
|---|---|
| 10 | $433 |
| 15 | $564 |
| 20 | $681 |
| 25 | $787 |
| 30 | $887 |
| 40 | $1,070 |
| 50 | $1,237 |
| 63 | $1,438 |
| 80 | $1,681 |
| 100 | $1,944 |
| 200 | $2,711 |
| 315 | $3,537 |
| 500 | $4,838 |
| 630 | $5,872 |
| 800 | $6,846 |
| 1000 | $7,831 |
| 1600 | $10,937 |
| 2000 | $12,817 |
| 3150 | $17,701 |
| 5000 | $24,582 |
| 6300 | $28,971 |
S22 COPPER — per
| Capacity (unit) | Price (USD) |
|---|---|
| 10 | $673 |
| 15 | $915 |
| 20 | $1,137 |
| 25 | $1,346 |
| 30 | $1,545 |
| 40 | $1,920 |
| 50 | $2,272 |
| 63 | $2,706 |
| 80 | $3,241 |
| 100 | $3,836 |
| 200 | $5,585 |
| 315 | $7,391 |
| 500 | $10,357 |
| 630 | $12,874 |
| 800 | $14,837 |
| 1000 | $16,449 |
| 1600 | $25,226 |
| 2000 | $30,905 |
| 3150 | $46,721 |
| 5000 | $71,133 |
| 6300 | $87,778 |
S22 ALUMINUM — per
| Capacity (unit) | Price (USD) |
|---|---|
| 10 | $497 |
| 15 | $648 |
| 20 | $781 |
| 25 | $904 |
| 30 | $1,018 |
| 40 | $1,228 |
| 50 | $1,420 |
| 63 | $1,651 |
| 80 | $1,930 |
| 100 | $2,232 |
| 200 | $3,112 |
| 315 | $4,061 |
| 500 | $5,555 |
| 630 | $6,742 |
| 800 | $7,860 |
| 1000 | $8,992 |
| 1600 | $12,558 |
| 2000 | $14,716 |
| 3150 | $20,324 |
| 5000 | $28,224 |
| 6300 | $33,263 |
What drives the price
- Capacity / rating — price scales sub-linearly with rating; unit cost falls as capacity rises.
- Material & winding — aluminium windings cut cost 15–25% versus copper but raise load losses.
- Efficiency grade — higher efficiency classes cost more up front but cut no-load loss.
- Certification & tests — CE/CB/UL and third-party witness tests add cost and lead time.
- Copper price — copper-wound units track the daily LME copper price.
Frequently asked questions
Is this price list final or indicative?
These are EXW / FOB Qingdao reference prices, updated to reflect current material and copper costs. A firm quote requires a formal enquiry with your exact specifications and quantity.
What is the lead time?
Standard units ship in 4–8 weeks; custom configurations, certifications and third-party inspection add 1–3 weeks.
Do prices include freight and import duty?
No — prices are EXW/FOB Qingdao. Freight, insurance, import duty and local delivery are additional.
Is there a bulk discount?
Yes — tender/bulk quantities qualify for tiered pricing. Send an enquiry for a firm quotation.
How does the copper price affect the price?
Copper-wound items track the daily LME copper price; a ±10% copper move shifts cost roughly ±5–7%.
Request a firm quote
Send your specifications and quantity for a formal quotation.
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