CS / CSG Cup-Type Harmonic Reducers
CS / CSG Cup-Type Harmonic Reducers
Cup-type harmonic reducers for compact robot joints, servo axes and precision rotary mechanisms. CSG is the higher-rigidity option, while CS supports compact precision motion with multiple ratios.
Product Highlights
- Cup-type flexspline structure for compact axial installation.
- Ratio options commonly include 50, 80, 100 and 120 depending on frame size.
- CSG reference backlash is <=10 arcsec in the product manual.
- Suitable for robot joints, indexing axes, semiconductor equipment and precision automation.
Model and Ratio Selection
| Series | Frame sizes | Reduction ratios | Typical use |
|---|---|---|---|
| CS | 11 / 14 / 17 / 20 / 25 / 32 / 40 | 50 / 80 / 100 / 120 | compact precision axes |
| CSG | 14 / 17 / 20 / 25 / 32 / 40 | 50 / 80 / 100 / 120 | higher rigidity robotic and automation axes |
Performance Reference from Product Manual
Values below are representative series data extracted from the harmonic reducer product manual. Final selection should be confirmed by drawing, duty cycle, installation direction and written quotation.
| Model | Ratio | Rated torque ref. (Nm) | Peak torque ref. (Nm) | Input speed ref. (rpm) | Backlash | Life | Weight |
|---|---|---|---|---|---|---|---|
| CSG-14 | 50 / 80 / 100 | 6.7-9.5 | 21.9-34.2 | 8500 / 3500 | <=10 arcsec | 10000-15000 h | 0.52 kg |
| CSG-17 | 50 / 80 / 100 / 120 | 20-28 | 42-61 | 7300 / 3500 | <=10 arcsec | 10000-15000 h | 0.68 kg |
| CSG-20 | 50 / 80 / 100 / 120 | 35-49 | 73-108 | 6500 / 3500 | <=10 arcsec | 10000-15000 h | 1.00 kg |
| CSG-25 | 50 / 80 / 100 / 120 | 54-69 | 112-160 | 5600 / 3500 | <=10 arcsec | 10000-15000 h | 1.55 kg |
| CSG-32 | 50 / 80 / 100 / 120 | 90-135 | 250-347 | 4800 / 3500 | <=10 arcsec | 10000-15000 h | 3.10 kg |
Allowable Output Load Reference
| Model | Allowable moment (Nm) | Allowable axial load (N) | Allowable radial load (N) | Moment rigidity (x10^4 Nm/rad) |
|---|---|---|---|---|
| CS/CSG-14 | 41 | 1010 | 674 | 4.38 |
| CS/CSG-17 | 64 | 1130 | 758 | 7.75 |
| CS/CSG-20 | 91 | 1240 | 828 | 12.8 |
| CS/CSG-25 | 156 | 2050 | 1380 | 24.2 |
| CS/CSG-32 | 313 | 3210 | 2150 | 53.9 |
Selection Checklist
- Required output torque: rated torque, peak torque and duty cycle.
- Reduction ratio and input speed range.
- Backlash or transmission accuracy requirement.
- Motor flange, input shaft, output interface and available installation space.
- Operating temperature, lubrication condition, mounting direction and expected life target.
- CAD/PDF drawings can be prepared according to selected model and customer interface requirement.
MOQ, Samples and Delivery
MOQ can start from 1 piece for sample or project validation. Typical delivery time is 15-50 days depending on model, quantity, customization and stock status. OEM motor flange and interface adaptation are supported.
Source: WAVE TECH reducer product manual slides for CS/CSG performance and allowable load tables.
