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Description
ROGER TECHNOLOGY R21 Motor - 230vProduct Overview: R21 230v electromechanical irreversible underground motor. Ideal for swing gates with leaf up to 3,5m. Standard version with 2 m cable in regular and SUB edition. 10m cable double bearing version available SUB Submersible version is available and it allows water resistance. Key Features: 230V Irreversible Swing gate leaf up to 3,5m 2m cable Water resistant (optional) Specifications: Specification R21 351 R21 362 R21 351SUB Water
Product Overview:
R21 230v electromechanical irreversible underground motor. Ideal for swing gates with leaf up to 3,5m. Standard version with 2 m cable in regular and SUB edition. 10m cable double bearing version available
SUB Submersible version is available and it allows water resistance.
Key Features:
- 230V
- Irreversible
- Swing gate leaf up to 3,5m
- 2m cable
- Water resistant (optional)
Specifications:
| Specification | R21/351 | R21/362 |
R21/351SUB Water resistant |
|---|---|---|---|
| Power line supply | 230V AC - 50Hz | 230V AC - 50Hz | 230V AC - 50Hz |
| Motor power supply | 230V AC | 230V AC | 230V AC |
| Power rating (W) | 200 | 200 | 200 |
| Frequency of use (%) | 30% | 30% | 30% |
| Torque (Nm) | 300 | 300 | 300 |
| Operating temperature range (°C) | -20 to +55 | -20 to +55 | -20 to +55 |
| Protection level | IP67 | IP67 | IP67 |
| Reducer Type | Irreversible | Irreversible | Irreversible |
| Manoeuvre speed (RPM) | 1.2 | 1.2 | 1.2 |
| Opening time (seconds) | 19 | 19 | 19 |
| Motor thermal protection (°C) | 150 | 150 | 150 |
| Limit switch | Mechanical stoppers | Mechanical stoppers | Mechanical stoppers |
| Encoder | Optional as an accessory | Optional as an accessory | Optional as an accessory |
| Maximum opening | 105° | 105° | 105° |
| Power supply cable length | 2m | 10m | 2m |
| Bearing on main shaft | Standard | Double bearings | Standard |
| Maximum dimension product (L x W x H in mm) | 345 x 224 x 144 | 345 x 224 x 144 | 345 x 224 x 144 |
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.7 ★★★★★
Based on 29 reviews
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Product Reviews
★★★★★ 5
Quality
Works very well, I also have the 11 in 1 green mac mini m4 docking hub with s 1Tb external drive installed. So f a r I'm impressed we with the quality of green products and their competitive pricing. Will be purchasing green cables in the near future. Ugreen has become my new go to company for accessories.
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Reviewed in the United States on May 18, 2026
★★★★★ 5
One cable does it all, rock solid Ethernet and great 4K output
This hub has simplified my desk setup considerably. I plug it into my MacBook and instantly have Ethernet, 4K HDMI, two USB-A ports, and 100W charging all from one connection. The Ethernet is Gigabit and the speeds are as fast as plugging directly into the router. The 4K HDMI output to my monitor is clean with no flickering. It runs slightly warm during extended use but nothing alarming. Build quality feels solid and UGREEN has been consistently reliable in my experience. Worth every penny if you need to expand a USB-C only laptop.
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Reviewed in the United States on May 5, 2026
★★★★★ 4
Nothing Special
Works as intended. I bought it mostly for the Ethernet adapter which was plug and play with the latest installation of Fedora Linux and uses an AX88179 Gigabit Ethernet chipset. The Ethernet portion does not have activity lights. A bit of a lazy omission.
Port locations are smartly placed with the HDMI output and power input at the back facing one direction, and the Type A USB peripheral ports facing the other. This is great for cable routing. The single Type C port is only for power delivery. It will not work for data to connect other peripherals.
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Reviewed in the United States on June 5, 2026
★★★★★ 5
UGREEN
Very useful and compact USB-C hub. It easily expands connectivity with HDMI, USB ports, and fast charging support. The 4K HDMI output works well for presentations and streaming, and the 100W power delivery keeps devices charged without issues. Build quality feels solid, and it’s perfect for travel or daily use. Great value for the price.
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Reviewed in the United States on April 11, 2026
★★★★★ 5
Compact and useful.
It's small and light enough to fit in my bag easily. My computer uses a USB-c charger, and there's only one port, but I was able to use it for ethernet, and pass the charging through the same port. I've had issues with my computer not recognizing charging from some sources before, so this was great.
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Reviewed in the United States on May 28, 2026