Laifual FSG-20-100 High-Torque Cup-Type Strain-Wave Reducer
Laifual · MPN FSG-20-100 · Maglev ID ac-laifual-fsg-20-100
CN Maker in China, factory not confirmed unknown VERIFIED
Size-20 100:1 high-torque cup-type harmonic reducer (+30% torque vs FSS) from Laifual, China's number-two strain-wave maker; 0.96 kg (FSG-I/II).
Specifications
| Ratio | 100:1 |
|---|---|
| Rated torque | 52 N·m at 2,000 rpm input |
| Peak torque (repeated / momentary) | 107 N·m repeated (start/stop) / 191 N·m momentary |
| Backlash | ≤20 arcsec |
| Outer diameter | unknown |
| Hollow shaft | no (cup type) |
Who makes it
MakerZhejiang Laifual Drive Co., Ltd. (浙江来福谐波传动股份有限公司, HKEX 3952)
Based inChina
RoleBrand owner
Need a different shaft, connector, firmware or enclosure, or a price at 1,000 units? Maglev takes the catalog part to the factory and comes back with a custom version and one fixed price.
Landed cost in the US
CN
40%
TW
10%
VN
15%
IN
12.5%
JP
12.5%
KR
12.5%
DE
10%
MX
12.5%
US
0%
Total US duty on this part by where it is made (2026-10-29). Mexico shown before USMCA preference; qualifying goods enter duty free. Your factory choice, not the shipping port, sets the origin.
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Compliance
| HTS classification | 8483.40.50.10 |
|---|---|
| NDAA | unknown |
| Blue UAS | unknown |
| FCC | n/a |
| Notes | Existing catalog entry ac-laifual-fsg-17 covers size 17. |
Equivalents from other makers
Sources
- https://www.laifualdrive.com/fsg/FSG rating table: size 20, ratio 100, backlash, weight
Record confidence: VERIFIED. VERIFIED means the maker's own documents; REPORTED means a credible third party; UNVERIFIED means a single weak source. Anything we could not confirm says unknown.