Sumitomo JR-7 Thermal Stripper — the professional-grade heated jacket remover for single and ribbon fiber, trusted by FTTH contractors, data center technicians, and telecom engineers worldwide. Supports up to 12-fiber ribbons with battery and AC adapter included.
Why Choose the Sumitomo JR-7?
Sumitomo Electric is the global leader in fusion splicing technology, with decades of engineering expertise in fiber optic tools. The JR-7 is engineered for field professionals who demand consistent, damage-free stripping of UV-cured resin coatings — from single fibers to 12-fiber ribbon cables — without the micro-crack risk of mechanical cold-strip methods.
Key Features
- Compatible with 200 & 250 μm fiber ribbons (2–12 fibers) and single fibers
- LED lighting illuminates the heater area for dark environments
- Vibration notification signals precisely when to remove the coating
- IPx2 water protection and shock-resistant metal lid for field durability
- Field-replaceable blade (JR7-BL) and battery (BU-JR) for easy maintenance
- Wide, flat stage for easy fiber setting and cleaning
- 4-level temperature control (80–140°C) for different coating types
- Power-saving and auto power-off functions extend battery life
Ideal Use Cases
- FTTH / FTTx Deployment: Fast ribbon stripping for high-density drop cable terminations in residential and commercial fiber rollouts.
- Data Center Installations: Precise, clean stripping of ribbon fiber for MTP/MPO trunk cable preparation and patch panel terminations.
- Backbone & Feeder Networks: Reliable performance for 2–12 fiber ribbon splicing in underground vaults, manholes, and aerial closures.
- Field Repair & Maintenance: Battery-powered operation with LED lighting makes it ideal for low-light environments and remote locations.
Who Should Buy the JR-7?
The Sumitomo JR-7 is the right tool if you:
- Regularly splice ribbon fiber (2–12 fibers) and need consistent, repeatable stripping results
- Work in field environments (manholes, aerial, underground) where durability and battery operation matter
- Want to reduce fiber breakage caused by mechanical cold-strip methods
- Need a tool compatible with Sumitomo FH Series fiber holders and Q102 Series splicers
Applicable Fibers
- Coating Material: UV-cured resin
- Coating Thickness: Single fiber 200–400 μm, Ribbon fiber (2–12 fibers) 200–400 μm
- Cladding Diameter: 125 μm
- Max Removal Length: 1.38 in (35 mm)
Specifications
- Temperature Settings: 4 Levels (176–284˚F / 80–140˚C)
- Power Saving Function: Normal / Power Saving Mode
- LED Indicators: Battery level & temperature
- Vibration Function: Alerts when to remove coating (ON/OFF)
- LED Lighting: Illuminates heater section (ON/OFF)
- Fiber Holders: FH Series
- Removal Cycles per Battery: Approx. 600 (12-fiber ribbon, 100˚C, one ribbon per minute, SAVE mode)
- Dimensions: 1.81(W) × 4.57(D) × 1.48(H) in / 46 × 116 × 37.5 mm
- Weight: 253 g (including battery)
- Replacement Blade: JR7-BL
- Replacement Battery: BU-JR
Datasheet
| PROPERTY | SPECIFICATIONS |
| Temperature Settings | 4 Levels (Min. 80°C to Max. 140°C) |
| Power Saving Function | Normal mode / Power saving mode |
| LED Indicator | Battery level & Temperature |
| Vibration Function | ON/OFF switchable — notifies when to remove coating |
| LED Lighting | ON/OFF switchable — illuminates heater section |
| Fiber Holders | FH Series |
| Battery Cycles (Approx.) | 600 cycles (12-fiber ribbon, 100°C, 1 ribbon/min, SAVE mode) |
| Dimensions & Weight | 46(W) × 116(D) × 37.5(H) mm, Approx. 253 g (with battery) |
Ordering Information
| PART NUMBER | DESCRIPTION |
| JR-7 | Heated Jacket Remover with AC Adapter & Battery for Single & Ribbon Fiber |
| JR7-BL | Replacement Blade for JR-7 |
| BU-JR | Replacement Battery for JR-7 |
| PC-2 | Charging Cord for use with Q102 Series Splicers |
| PS-JR | AC Adapter and Power Cord |
Frequently Asked Questions – Sumitomo JR-7
What fibers is the Sumitomo JR-7 compatible with?
The JR-7 supports single fibers (200–400 μm coating) and 2–12 fiber ribbons with 125 μm cladding diameter and UV-cured resin coatings.
Is the Sumitomo JR-7 battery-powered?
Yes. The JR-7 includes a rechargeable battery (BU-JR) and AC adapter. It delivers approximately 600 stripping cycles per charge in power-saving mode.
What is the difference between the JR-7 and a mechanical fiber stripper?
The JR-7 uses controlled heat (80–140°C) to soften UV-cured resin coatings before removal, significantly reducing fiber breakage risk compared to mechanical cold-strip methods. It is the preferred choice for ribbon fiber splicing in FTTH and data center installations.
Does the JR-7 work in dark field environments?
Yes. The JR-7 features a built-in LED light that illuminates the heater area, making it suitable for underground vaults, manholes, aerial closures, and other low-light field conditions.
What is the replacement blade part number for the JR-7?
The replacement blade is JR7-BL. The replacement battery is BU-JR. Both are field-replaceable without tools.
How many fiber ribbons can the JR-7 strip per battery charge?
Approximately 600 stripping cycles on a single charge when operating at 100°C in Power Saving mode, stripping one 12-fiber ribbon per minute.
Is the Sumitomo JR-7 waterproof?
The JR-7 carries an IPx2 rating, providing protection against dripping water. It is also shock-resistant with a tough metal lid, making it suitable for demanding field environments.
What temperature settings does the JR-7 support?
The JR-7 offers 4 temperature levels ranging from 80°C to 140°C (176°F to 284°F), allowing adjustment for different fiber coating types and ambient conditions.
Is the JR-7 compatible with Sumitomo fusion splicers?
Yes. The JR-7 uses FH Series fiber holders and can be charged via the PC-2 charging cord when used alongside Sumitomo Q102 Series fusion splicers, making it a seamless addition to a Sumitomo splicing workflow.
What is the best thermal stripper for FTTH ribbon fiber splicing?
The Sumitomo JR-7 is widely regarded as one of the best thermal jacket removers for FTTH ribbon fiber splicing, offering precise heat control, vibration notification, and up to 600 cycles per charge — making it ideal for high-volume field deployments.