Product Description
LIGHT LABS is proud to offer 50mL Polypropylene Conical Bottom Centrifuge Tubes with CentriStar™ Cap, Bulk Packed (Cat # 430829) — the premium 50mL centrifuge tube in LIGHT LABS' lineup, featuring the advanced CentriStar™ cap technology that represents a significant engineering leap forward over traditional plug seal cap designs. The CentriStar™ cap incorporates a revolutionary plug feature that virtually eliminates all seepage when used under recommended conditions — addressing the most common failure point of conventional centrifuge tube caps. The easy-on/easy-off flat top design with wider knurls and roll-over edge provides advanced ergonomics for faster, more comfortable cap operation — particularly valuable in high-throughput labs where opening and closing hundreds of tubes per session causes hand fatigue.
The 430829 also delivers superior centrifugation performance vs. the plug seal 430291 — with a maximum RCF of 17,000 x g (vs. 15,500 x g for the plug seal 430291), making it the preferred choice for applications requiring higher centrifugation speeds. The wide temperature range of -80°C to +120°C enables use across all standard laboratory workflows from -80°C frozen storage through standard autoclave sterilization. These tubes have a 5-year shelf life guarantee and certified quality standards (RNase-/DNase-free, heavy-metal-free color concentrate, medical grade PP, nonpyrogenic, sterile) make the 430829 the most comprehensively validated 50mL centrifuge tube available. LIGHT LABS is your trusted source for CentriStar centrifuge tubes.
KEY FEATURES
- CentriStar™ cap with revolutionary plug feature — virtually eliminates all seepage when used under recommended conditions; addresses the #1 failure point of conventional plug seal caps
- Advanced ergonomics — wider knurls and roll-over edge design on the easy-on/easy-off flat top cap for faster, more comfortable cap operation and reduced hand fatigue during high-throughput workflows
- Higher maximum RCF: 17,000 x g — 10% higher than the plug seal 430291 (15,500 x g); preferred for higher-speed centrifugation applications
- Wide temperature range: -80°C to +120°C — suitable for -80°C frozen storage AND standard autoclave sterilization (121°C)
- 5-year shelf life guarantee — industry-leading shelf life
- Clear accurate graduations from 5 to 50 mL (2.5 mL intervals) and large white marking spots for easy sample identification and labeling
- Manufactured from clear virgin medical-grade polypropylene (PP) for excellent visibility and strength
- Heavy-metal-free color concentrate cap (polyethylene) — safe for sensitive biological and analytical applications
- Certified RNase-/DNase-free, nonpyrogenic, sterile
- Bulk packed 25 tubes per resealable sleeve for economical, contamination-controlled access
- EcoChoice™ product — manufactured at facilities 100% covered by renewable energy
- Tube dimensions: 29.1 mm x 114.4 mm; cap diameter approximately 34.7 mm
- Fisher Scientific Catalog No. 05-538-60
SPECIFICATIONS
| Attribute | Detail |
|---|---|
| Catalog Number | 430829 |
| Fisher Scientific Catalog No. | 05-538-60 |
| Volume | 50 mL |
| Tube Bottom Style | Conical |
| Tube Material | Clear polypropylene (PP) — virgin medical-grade |
| Cap Type | CentriStar™ cap (advanced plug feature) |
| Cap Material | Polyethylene (heavy-metal-free color concentrate) |
| Cap Diameter | ~34.7 mm |
| Maximum RCF | 17,000 x g |
| Temperature Range | -80°C to +120°C |
| Shelf Life | 5 years |
| Sterility | Sterile |
| Certifications | RNase-free, DNase-free, nonpyrogenic, heavy-metal-free |
| Graduations | 5–50 mL (2.5 mL intervals); clear, accurate printed graduations |
| Marking Area | Large white marking spot |
| Tube Dimensions | 29.1 mm x 114.4 mm |
| Packaging | 25 tubes/resealable sleeve; 20 sleeves/case |
| Quantity | 500 tubes/case |
| Sustainability | EcoChoice™ — renewable energy manufacturing |
APPLICATIONS
- High-speed centrifugation of biological samples up to 17,000 x g
- Cell culture sample processing and cell pellet preparation
- Sample concentration and clarification requiring higher centrifugation speeds
- Blood serum and plasma processing
- Molecular biology and genomics sample preparation
- Protein precipitation and isolation at high speed
- -80°C long-term sample storage
- Clinical and research biobanking requiring extended shelf life tubes
- Any application requiring premium, leak-proof 50mL centrifuge tubes with advanced cap ergonomics
