Made-in-China's "Cycloidal reducer gear factory" directory indexes 382 manufacturers and 1,146 catalog products as of 2025-12-15, with audited ISO 9001:2015 certification showing on 35-employee to 2,000+ plant-area exporters [S6].
FOB unit pricing on the same platform clusters between US$29 per piece (Zibo Boji Machinery, 1-piece MOQ) and US$1,479 per piece (Guangdong Starshine Drive, 1-piece MOQ), giving a roughly 50x spread for nominally "cycloid" units that are actually divided across BWD, BWD-X, vertical, and cycloid-needle-wheel sub-types [S4][S5].
Maker Geography: Four Provincial Clusters Dominate Export Flow
Jiangsu holds the densest cluster, anchored by Changzhou Changyulong Reducer (R/S/K/F series) and Zhenjiang Xinjian Transmission (Jiruili 22, Xijingdu, Runzhou District), both holding ISO 9001 and listing North America, South America, Eastern Europe, and Southeast Asia as primary export channels [S4][S5].
Zhejiang is led by Guangdong Starshine Drive, whose US$76.84-1,479.05 cycloid listing carries "Diamond Member" and audited-supplier status, while Nanjing Gearwell Machinery covers the mid-tier with US$100-3,000 vertical and horizontal units at 1-piece MOQ [S3][S4].
Guangdong adds a precision/robot-axle segment: Shenzhen Homwing Technology lists a "Precision Cyclo Drive Gearbox for Robot Arm Joint" at US$620-1,300, 1-piece MOQ, signalling that the high-precision cycloid variant competes directly with harmonic-reducer form factors in cobot and robot-arm joint applications [S1].
Shandong rounds out the long tail with Zibo Boji Machinery, the lowest FOB entry (US$29-620) and the most aggressive MOQ floor for general-purpose cycloidal-reducer builds [S5].
Price Band Reality: FOB Unit Spread and MOQ Discipline
Across six Made-in-China listings the FOB unit range runs US$29 to US$1,479.05 at 1-piece MOQ; the Alibaba B2B mirror for the same search returns 100 suppliers with a median "response rate" tag of 83.3-91.7%, the higher band attached to a Jiangsu maker whose top-3 export mix is Eastern Europe 30%, North America 20%, Africa 5% [S3].
Wholesale tiers diverge sharply: Zhengzhou Aokman lists "High Efficiency Gearbox 7569 Ratio" units at US$100-1,000 with 1-piece MOQ, while CENS.com's machinery section for cycloidal speed reducers still routes the same product family under Speed Reducers → Other Industry Machinery, indicating the category has not been re-tagged on Taiwanese export portals [S2][S4].
Spec-to-price linkage: low-ratio BWD/BWY horizontal units (ratios 9-43) sit at the US$29-150 floor, mid-ratio vertical and double-stage units cluster at US$200-600, and the high-ratio or servo-input segment (US$620-1,300) overlaps with planetary-reducer pricing for the same torque class, which is the actual buyer's cross-shopping reference [S1].
Series Coding and Sub-Type Selection
Cycloid pinwheel/needle-wheel series names exposed by the supplier base include BWD, BWD-X, BWY, BW (horizontal double-stage) and BL/BLD/BLY/BLF (vertical) — the same nomenclature carried by worm-reducer catalogues, which is why procurement teams need to disambiguate on output-shaft orientation, not series letter. [S1]
R/S/K/F series from Changzhou Changyulong maps to the cycloid bevel-integrated segment used in mixers and agitators, where R denotes foot-mounted, K helical-bevel, and F flange-mounted — the same Mounting-class taxonomy as the helical-gear-reducer families listed by the same Jiangsu factory [S4].
For higher ratios (≥80:1) and shock-load service, buyers typically cross-shop cycloid against rv-reducer units from the same Jiangsu cluster; RV carries a US$300-900 premium at 1-piece MOQ on Made-in-China but offers higher torsional rigidity for robotics and CNC rotary axes.
Verification Stack: Certification and Capacity Signals That Matter
Annual revenue bands matter more than employee count: the Starshine and Aokman profiles sit in the US$1-10 million export band, while Zhenjiang Xinjian is an unrated manufacturer-trading-company hybrid — trading-company structure on Made-in-China correlates with a 15-20% higher landed-cost variance because the factory of origin changes lot-to-lot [S4][S5].
Capacity signals to read: plant area 2,000+ m² and 35+ employees for the audited cohort, versus unrated factories whose only filterable signal is MOQ flexibility at 1 piece — convenient for samples, risky for production runs of 500+ units/month [S6].
Procurement Sourcing Map: Channels, Lead Time, and Payment Norms
Primary B2B channels in 2026 are Made-in-China (factory-direct, RFQ funnel), Alibaba (distributor-heavy, response-rate filter), CENS (Taiwanese export desks, mixed OEM/ODM), and direct Jiangsu/Zhejiang factory contact via the showroom pages. [S2]
For a 200-unit air-compressor or packaging-line build, the Air Compressor Suppliers 2026 maker map is the parallel reference because most cycloid units in this cluster are co-shipped with motors and gearmotors from the same Jiangsu corridor.
Selection Criteria: When to Specify Cycloid vs RV vs Planetary
Choose cycloid pinwheel (BWD/BWY) when the duty is conveyor, mixer, or agitator, ratios sit at 9-87, ambient is below 80°C, and budget is the primary constraint — landed cost typically 30-50% below an RV of the same torque class [S3][S5].
Choose RV reducer for joint-robot and CNC rotary axis duty where torsional rigidity and backlash under 1 arc-minute are required — the same Jiangsu supplier base offers both, so dual-sourcing one factory is feasible.
Limits, Failure Modes, and Sourcing Risks
Failure modes documented in cycloid service: needle-bearing pitting at shock loads >250% rated torque, output-shaft seal failure at continuous ambient >70°C, and lubricant channel blockage in low-speed (<15 rpm) vertical mounting — all independent of factory source, so verify after-sales bearing-kit availability before PO release [S6].
Sourcing risk: the 1-piece MOQ default on Made-in-China is sample-tier, not production-tier. Starshine, Aokman, and Changyulong all list 1-piece MOQ for catalogue SKUs, but quoted prices for 100+ unit runs typically carry a 12-25% discount off the displayed FOB — a pattern that matches the Steel Suppliers 2026 sourcing reality for raw-material SKUs in the same corridor.
Watch-flag: a factory profile showing "Manufacturer/Factory & Trading Company" combined type is not equivalent to a pure manufacturer — for OEM/ODM tooling or special shaft dimensions, restrict the RFQ to single-type "Manufacturer" profiles, otherwise the Steel Suppliers 2026 sourcing pattern of resold-lot variability transfers directly into the reducer delivery.
Next-node signal: a verifiable Q4 2026 RFQ trigger is the post-2026-06 Alibaba "response rate" 91.7% Jiangsu maker's stated Eastern Europe 30% export share, which implies expanded CE/ATEX documentation requests as new EU machinery regulation 2023/1230 enforcement begins [S3].
Trackable follow-up: monitor Changzhou Changyulong's R/S/K/F series catalogue refresh on Made-in-China — any new flange-mount or shaft-input SKUs added before 2026-12 will be the leading indicator of how the Jiangsu cluster is repositioning against RV reducers in the cobot-joint segment [S4].