iER6-500-SR vs SA4A-4/0.40
Estun Automation vs SIASUN Robot & Automation Co., Ltd. — specs, price, and data-backed comparison.
QUICK TAKE
- iER6-500-SR offers the higher payload (6 kg vs 4 kg).
- iER6-500-SR offers the longer reach (500 mm vs 400 mm).
SPECIFICATIONS COMPARED
| iER6-500-SR | SA4A-4/0.40 | |
|---|---|---|
| Company | Estun Automation | SIASUN Robot & Automation Co., Ltd. |
| Category | Industrial-Robot | Industrial-Robot |
| Price: | Not announced | Not announced |
| Released: | 2025 | — |
| Payload | 6 kg | 4 kg |
| Reach | 500 mm | 400 mm |
| Degrees of Freedom | — | 4 |
FREQUENTLY ASKED QUESTIONS
What is the difference between the iER6-500-SR and the SA4A-4/0.40?
iER6-500-SR is made by Estun Automation, while SA4A-4/0.40 is made by SIASUN Robot & Automation Co., Ltd.. Both are industrial-robots, so the differences come down to price and specifications.
Which has the higher payload, the iER6-500-SR or the SA4A-4/0.40?
The iER6-500-SR has the higher payload at 6 kg, compared to 4 kg for the SA4A-4/0.40.


