Sopto SPTK-4108H — Single Optical Fiber Fusion Splicer

The Sopto SPTK-4108H is a handheld single-fiber fusion splicer designed for FTTH, telecom, and field fiber installation. Featuring auto ARC calibration, 8-second splice time, and 26-second tube heating, it supports SM/MM fibers (ITU-T G.652 & G.657). With its 4.3-inch LCD, USB port, and 5200 mAh battery, it delivers over 200 cycles per charge.

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Description

The Sopto SPTK-4108H is a professional-grade single optical fiber fusion splicer engineered for fast, reliable fiber jointing in FTTH, ISP, and enterprise optical networks. Compact and lightweight, it combines automatic splicing and heating functions with precise temperature and air-pressure ARC calibration for consistent splice quality.

Supporting SM, MM, DS, and NZDS fibers (ITU-T G.652 & G.657), it delivers typical splice loss as low as 0.02 dB and a return loss > 60 dB. The unit features dual CMOS cameras with 250×/125× magnification and a 4.3-inch color LCD, providing clear core alignment and real-time results.

Powered by a 5200 mAh Li-ion battery, the SPTK-4108H supports 200 splicing + tube-heating cycles on a single charge. It stores up to 4000 records and includes a USB 2.0 port for exporting splice data and firmware upgrades. The kit ships complete with fiber cleaver, stripper set, cooling tray, electrodes, and rugged carrying case — ready for immediate deployment in any fiber-installation environment.


Application

FTTH deployment, Telecom fiber splicing, Enterprise and Campus networks, ISP field maintenance, Fiber installation training and workshops


Key Features

  • ✅ Handheld, lightweight single-fiber fusion splicer

  • ✅ Supports SM/MM/DS/NZDS fibers (ITU-T G.652 & G.657)

  • 8 s splicing / 26 s tube heating for 60 mm & 40 mm sleeves

  • Auto ARC calibration via temperature and air pressure

  • 4.3″ color LCD monitor with dual CMOS cameras

  • ✅ Stores 4000 splice results and supports USB data export

  • 5200 mAh battery, 200 cycles per charge

  • ✅ Complete tool kit with cleaver, stripper set, and carrying case

Specifications

Specification Details
Brand Sopto
Model SPTK-4108H
Product Type Single Optical Fiber Fusion Splicer
Applicable Fiber SM/MM/DS/NZDS (ITU-T G.652 & G.657)
Fiber Count Single
Cladding Diameter 80–150 µm
Coating Diameter 160–900 µm
Typical Splice Loss SM: 0.02 dB / MM: 0.01 dB / DS,NZDS: 0.04 dB
Return Loss > 60 dB
Fiber Cleaved Length 10–16 mm (coating 250 µm / 1000 µm max)
Splicing Program 40 groups manual
Operation Mode Automatic with Auto-Heating
Typical Splicing Time 8 seconds
Tube Heating Time 26 seconds (60 mm & 40 mm sleeves)
Fiber View Magnification 250× (X or Y view), 125× (X and Y view)
Viewing System Dual CMOS cameras, 4.3″ color LCD
Storage Capacity 4000 splice results
Loss Evaluation / Tension Test Available / 1.8–2.2 N
Battery Capacity 5200 mAh Li-ion (≈ 200 cycles)
Power Supply AC 100–240 V (50/60 Hz) Adaptor
Electrode Life > 4000 ARC discharges (replaceable)
USB Port USB 2.0 (for data export and updates)
Operating Conditions Altitude 0–5000 m; Humidity 0–95 %; Temp –10 °C ~ +50 °C; Wind ≤ 15 m/s
Dimensions (L×W×H) 149 × 120 × 127 mm
Weight 1.9 kg (including battery)

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