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- USA
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Ships within 48 hours · Estimated delivery Jul 8 - Jul 13
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Description
Frontier Rotor R-S4x250/4MI and AdaptersFrontier rotors extend the functionality of Frontier centrifuges by increasing the number of tubes of varied types and sizes that can be used in conjunction with each of the centrifuge models. Easy to clean and operate, the rotors are durably constructed to withstand demanding centrifugation. R S4x250 4MI Rotor Maximum Speed 4,500 rpm Maximum Relative Centrifuge Force (x g) 3,780 g Maximum Capacity (Rotor) 4 x 250 ml Tube diameter without adapter N A
Frontier rotors extend the functionality of Frontier centrifuges by increasing the number of tubes of varied types and sizes that can be used in conjunction with each of the centrifuge models. Easy to clean and operate, the rotors are durably constructed to withstand demanding centrifugation.
R-S4x250/4MI Rotor
| Maximum Speed | 4,500 rpm |
| Maximum Relative Centrifuge Force (x g) | 3,780 g |
| Maximum Capacity (Rotor) | 4 x 250 ml |
| Tube diameter without adapter | N/A |
| Outer/Inner Radius | 167 mm |
| Rotor Style | Swing out |
| Aerosol tight | Not applicable |
| Acceleration Time (sec) | 34 / 309 |
| Angle | 0-90° |
| Compatible Models | FC5816; FC5816R |
| Deceleration Time (sec) | 34 / 458 |
| Dimensions (LxØ) | 13.31 in (338 mm) |
| Maximum loading weight | 2,144 g |
| Multiple Maximum Speeds | No |
| Net Weight | 8.96 lb (4.06 kg) |
| Working Environment | -4°F – 122°F, 95%RH, non-condensing (Temperature: -20ºC – 50ºC, Humidity: < 95%) |
Available Adapters:
- 5x4-10ml D16mm Sar 2/pk Rack
- 7x5-7ml D13mm Vac 2/pk Rack
- 7x5-7ml D13mm RB 2/pk Rack
- 9x4.5ml D12mm FB 2/pk Rack
- 10x1.5ml D11mm 2/pk Rack
- 9x5-7ml D13mm RB 2/pk Rack
- 7x15ml D17mm RB 2/pk Rack
- 1x15ml D17mm Rim 2/pk Rack
- 2x15ml D17mm FA 2/pk Rack
- 1x25ml D25mm RB 2/pk Rack
- 1x30ml D25mm Rim 2/pk Rack
- 1x50ml D29mm Rim 2/pk Rack
- 1x50ml D29mm FA 2/pk Rack
- 1x50ml D29mm RB 2/pk Rack
- 1x50ml D34mm RB 2/pk Rack
- 1x85ml D38mm RB 2/pk Rack
- 1x100ml D46mm RB 2/pk Rack
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
4.6 ★★★★★
Based on 2127 reviews
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Product Reviews
★★★★★ 5
Works well
Size: 16 Ounce (Pack of 1), Style: SPF 50
Smells amazing! Doesn’t leave greasy finish. The spray goes on super smooth and cover a lot of area. Sad it isn’t reef friendly and new formula has more chemicals in it than it used to.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on August 1, 2025
★★★★★ 4
It works
Size: 16 Ounce (Pack of 1), Style: SPF 50
One of my favorite sunscreens. It actually works, smells good, but is very dufficult to shower off
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 18, 2026
★★★★★ 5
Works great
Size: 16 Ounce (Pack of 1), Style: SPF 50
This is my favorite sunscreen . Sprays on nicely . The scent isn’t overwhelming . It works great and the price is very reasonable .
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on September 13, 2025
★★★★★ 5
It Works!
Size: 16 Ounce (Pack of 1), Style: SPF 50
My favorite sunscreen.
Smells incredible. Reminds me of the beach every time I use it. Which is daily. Summers are brutal in the south and I don’t get paid enough for a farmers tan.
Alba has saved me. I’m hooked on it.
Also the price isn’t horrible either. Sunscreen can be so dang expensive. You get your moneys worth.
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Reviewed in the United States on June 22, 2025
★★★★★ 1
Defective item
Size: 16 Ounce (Pack of 1), Style: SPF 50
I requested a refund or replacement as one of the two bottles that arrived. Has an issue with spraying. When I put it in the unlocked position, it does not spray I requested from the seller, but the seller wants to meet to provide proof and requesting me to upload a video. When I explained the defect, they told me to move it to unlocked position. I buy this sunscreen all the time for my kids so I’m aware of how to lock and unlock a sunscreen Unfortunately through buyer/seller messaging you’re unable to leave a video so I will unfortunately have to leave a review here. I hope the seller will resolve this defective item.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on September 1, 2025