Fujikura CB-08 Replacement Blade for CT-50 Fiber Optic Cleaver – 48,000-Cleave Life, Genuine AFL Part
The Fujikura CB-08 is the genuine replacement blade for the Fujikura CT-50 (CT50) precision fiber optic cleaver. With a rated service life of 48,000 fiber cleaves, the CB-08 is the correct blade to restore your CT-50 cleaver’s cutting performance when the blade becomes dull — delivering the clean, low-angle end-faces required for low-loss fusion splices and fast connector terminations.
A worn cleaver blade is one of the most common causes of poor cleave quality in the field: high cleave angles, lip defects, hackle marks, and fiber end-face chips all increase splice loss and connector insertion loss. Replacing the CB-08 blade at the recommended interval restores the CT-50’s cleave quality to factory specification.
Key Specifications
| Parameter | Specification |
|---|---|
| Part Number | CB-08 |
| Compatible Cleaver | Fujikura CT-50 / CT50 |
| Blade Life | 48,000 fiber cleaves |
| Condition | Brand new, genuine OEM |
| Manufacturer | Fujikura / AFL |
| Quantity per Package | 1 blade |
Compatible Cleaver Models
| Cleaver Model | Compatibility |
|---|---|
| Fujikura CT-50 | ✓ Compatible |
| Fujikura CT50 | ✓ Compatible (same model, alternate designation) |
| AFL CT-50 | ✓ Compatible |
If you are unsure whether the CB-08 is compatible with your specific cleaver model, please contact us before ordering. For the Fujikura CT-08 cleaver, the correct blade is the CB-07.
Why Cleaver Blade Replacement Matters for Splice Quality
- Increasing cleave angle: A dull blade produces higher cleave angles. IEC standards require cleave angles below 0.5° for singlemode fusion splicing — a worn blade frequently exceeds this threshold, causing high splice loss
- Lip and hackle defects: Dull blades produce lip defects and hackle marks, both of which increase splice loss and connector insertion loss
- Fiber end-face chips: A worn blade may chip the fiber end-face rather than producing a clean fracture, causing splice failures and wasted fiber
- Increased fiber breakage: A dull blade requires more scoring force, increasing the risk of fiber breakage during the cleave cycle
Signs Your Fujikura CT-50 Cleaver Needs a New Blade
- The cleaver’s blade position indicator has reached the end of its rotation range
- Cleave angles are increasing — consistently above 0.5°
- Splice loss is increasing on fiber types that previously spliced well
- Lip or hackle defects are visible on fiber end-faces
- Fiber breakage during cleaving is occurring more frequently than expected
CB-08 vs. CB-07: Which Fujikura Cleaver Blade Do You Need?
| Part Number | Compatible Cleaver | Blade Life |
|---|---|---|
| CB-08 (this listing) | Fujikura CT-50 / CT50 | 48,000 cleaves |
| CB-07 | Fujikura CT-08 | 48,000 cleaves |
Always verify your cleaver model before ordering. The CT-50 and CT-08 are different cleaver models requiring different blades — the CB-08 and CB-07 are not interchangeable.
Frequently Asked Questions
Q: What is the Fujikura CB-08?
A: The Fujikura CB-08 is the genuine OEM replacement blade for the Fujikura CT-50 (CT50) precision fiber optic cleaver. It is rated for 48,000 fiber cleaves.
Q: Which cleaver is the CB-08 compatible with?
A: The CB-08 is compatible with the Fujikura CT-50 / CT50 fiber optic cleaver. It is not compatible with the Fujikura CT-08, which uses the CB-07 blade.
Q: How many cleaves does the CB-08 blade last?
A: The CB-08 blade is rated for 48,000 fiber cleaves.
Q: How do I know when to replace the CB-08 blade?
A: Replace the blade when the CT-50’s blade position indicator has reached the end of its rotation range, when cleave angles consistently exceed 0.5°, when lip or hackle defects appear on fiber end-faces, or when fiber breakage during cleaving increases.
Q: What is the difference between the CB-08 and CB-07?
A: The CB-08 is for the Fujikura CT-50 cleaver. The CB-07 is for the Fujikura CT-08 cleaver. They are not interchangeable — always verify your cleaver model before ordering.
Q: Is the CB-08 a genuine Fujikura / AFL part?
A: Yes. The CB-08 is a genuine Fujikura / AFL OEM replacement blade.
Q: For support or bulk orders?
A: Contact us at sales@opticfibertool.com for B2B pricing, volume orders, or technical support.
Package Contents
- Fujikura CB-08 Replacement Blade ×1