Made-in-China.com lists 295+ wind turbine manufacturers and 885+ related SKUs as of 2026-07-17, with strong clustering in Jiangsu (Nantong, Wuxi, Changzhou), Shandong (Qingdao, Zhumadian-supplying), Tianjin and Zhejiang [S1].
Small-wind blades are the high-volume, low-cost end: PP-reinforced injection-moulded fan/rotor blades, FOB US$19-21 per piece at 1-piece MOQ for 350 mm axial-fan styles [S7]. Utility-scale blades are not visible on these catalogues — they are designed against NREL reference airfoils (DU/NACA64) for 126 m rotors and rated winds near 11.4 m/s [S2].
Where the supplier base actually sits
On Made-in-China.com, the wind-turbine category on 2026-07-17 carries 295 manufacturers and 885+ products, with Nantong R&X Energy (Jiangsu), Tianjin Galaxy Tech, Qingdao Greef New Energy, Wuxi Rexco Technology and Henan Xieyan New Energy anchoring the top of the result page [S1]. Qingdao Greef lists wind blades as an explicit main-product line alongside the turbine body, vertical-axis turbines, permanent-magnet generators and wind-solar hybrid systems [S1].
Geographic split is consistent: 6 of 7 audited suppliers on page 1 sit in the coastal manufacturing belt — Nantong, Tianjin, Qingdao, Changzhou, Wuxi — with Henan (Zhumadian) and Shandong (Qingdao) the inland standouts [S1]. Cross-checked on ArchiExpo, the small-wind supplier long-tail adds Aeolos, Fortis Wind Energy, Innoventum, New World Wind, Windside, Xunzel, Xzeres and Zhejiang WinPower Energy (8 companies, 49 SKUs), confirming a fragmented vendor pool outside the top 3-4 names [S6].
Blade product types, materials and price bands
Small-wind blades are dominated by injection-moulded PP-reinforced polypropylene, multi-wing centrifugal geometry, surface-finish polished, MOQ 1 piece, 1-year warranty, with main-line suppliers in Guangdong and Jiangsu holding ISO 9001 and ISO 9000 [S3]. A 500 mm axial-fan blade from a Zhejiang OEM (HanWas, est. 2010) lists US$19.21-20.81 per piece at 1-piece MOQ, AC 380 V 50 Hz three-phase external-rotor-motor class [S7].
Utility-scale and small-utility blades are sold as part of a kit. Tianjin Galaxy Tech prices its horizontal/vertical/variable-pitch sets at US$508-1,142.42 per set, MOQ 1 set; Wuxi Rexco at US$1,650-5,900 per set, MOQ 1 set; Nantong R&X Energy at US$210-6,607 per piece or per set, MOQ 1 piece/set [S1]. Qingdao Allrun New Energy lists 3-10 kW horizon-style "wind mill" generators at US$550-5,000 per set, MOQ 1 set, sold as a complete unit with generator and blades [S9].
Design drivers differ sharply by class. The MATLAB/Simulink reference workflow sizes a blade for a 126 m rotor at 11.4 m/s rated wind and tip-speed ratio 7, using the NREL 5-MW reference airfoil set: round root (Cd 0.35) at 0.11 R, DU40/DU35/DU30/DU25/DU21 from 0.17 R to 0.63 R, NACA64 at 1.0 R, all at aspect ratio 17 [S2]. That stack of airfoils and the 126 m rotor diameter are the working baseline any utility-class blade supplier must answer to.
Decision criteria when qualifying a blade supplier
Spec a small-wind or distributed blade supplier against four hard gates: blade material (PP-reinforced vs fibre-reinforced composite), manufacturing route (injection mould vs resin-transfer moulding vs prepreg autoclave), supplied surface finish (polished, gel-coated, painted), and declared warranty period (1 year is common on Made-in-China.com listings) [S3]. Sourcing volume matters: a 1-piece MOQ applies across most small-wind SKUs, while utility sets ship in 1-set MOQ at substantially higher unit values [S1].
For utility-scale, the question is whether the supplier can deliver a blade that holds the NREL DU/NACA64 airfoil distribution on a 126 m rotor at rated 11.4 m/s and tip-speed ratio 7 [S2]. A 5-MW-class blade that is not engineered against that reference is, for the process engineer writing the spec, a different procurement exercise entirely from a small-wind blade. Related drivetrain context — and where blade loads feed the gearbox — is covered in wind turbine gearbox sourcing specs 2026.
Failure-mode input for blade QA is the acoustic-emission / SVM classification route used in published blade-defect work, where high-wavelet features feed a support-vector-machine classifier to flag leading-edge and trailing-edge damage on operational blades [S8]. Spoiler geometry, in turn, measurably changes vertical-axis-turbine aerodynamic performance per peer-reviewed CFD studies, so a supplier that ignores spoiler design is a spec-risk on VAWT skids [S8].
Who this supplier list is for, and who it is not for
The Made-in-China.com 295-supplier pool is built for distributed-wind, telecom-tower, hybrid wind-solar and small-commercial 1-20 kW buyers: prices are quoted per piece or per set at 1-piece/set MOQ, the named main-product is usually "wind turbine" rather than "blade", and blade geometry is fixed-product rather than engineered-to-order [S1]. It is also a reasonable secondary source for replacement blades on the 49-SKU small-wind ecosystem indexed on ArchiExpo (Aeolos, Fortis Wind, New World Wind, Windside, Zhejiang WinPower) [S6].
It is not a usable procurement list for offshore monopile- or jacket-foundation wind farms. The vessels, foundation gates and offshore spec envelope for that segment are defined in offshore wind foundation 2026, and the blades feeding that segment ship in volumes, lengths and QA packages that this catalogue does not expose.
Engineering workflow and process controls behind the catalogue
Blade-element momentum (BEM) theory with wake rotation is the standard academic and pre-CFD step for blade twist and chord distribution; the Simulink test harness cited in research material drives that workflow with rotor diameter 126 m, rated wind 11.4 m/s, target TSR 7, and an iterative twist/chord optimiser that lifts output from 4.3 MW to 5.9 MW on the reference 5-MW NREL turbine [S2]. The harness runs in Fast Restart with rotor inertia simplified, a 5-second spin-up ramp, and a Velocity Source absorbing generated power so the loop converges stably during parameter sweeps [S2].
Process-side QA: BEM gives chord and twist, CFD then resolves the stall-regulated behaviour and the spoiler-induced VAWT penalty — both subjects of active Chinese academic work in 2025-2026 [S5][S8]. Acoustic-emission-based defect recognition on operational blades is the field-service input; wavelet-feature + SVM classifiers are the published baseline [S8]. Specifying a blade supplier without naming which of these three steps (BEM, CFD, AE-SVM) they validate against is the easiest way to buy a cosmetic airfoil, not an engineered blade.
Limits, failure modes and what to track next
Three constraints are hard: (1) the 295-supplier figure is catalogue-wide, not blade-specific — only a subset of those factories actually mould or laminate blades, and only some of those are utility-capable [S1]; (2) the small-wind SKUs on the platform are largely injection-moulded PP at 1-piece MOQ and 1-year warranty, so a buyer needing 25-year fatigue life must move past this catalogue [S3]; (3) supply-chain risk for utility-class projects is dominated by cell allocation for any hybrid wind-plus-storage skid, so the energy-storage supply risk 2026 read is a relevant cross-input even for a wind-only purchase.
Trackable signals: confirmed audited supplier count on Made-in-China.com (the page currently shows 295 wind-turbine manufacturers); the 49-product small-wind index on ArchiExpo; and the NREL 5-MW airfoil stack (DU40-DU21 + NACA64, 126 m rotor, 11.4 m/s rated wind, TSR 7) which is the de facto engineering baseline any new 5-MW-class blade design is being judged against [S1][S2][S6]. The next check worth running is the wind turbine blade supply chain 2026 read to confirm how the spec bands and failure modes are moving on utility-scale platforms between this catalogue and the OEM procurement tier.
For component-level specifications, see turbine flowmeter, pressure transmitter, and flow meter.