FST-18S

Tumtec Dust-proof Optical Fusion Splicer FST-18S

Key Features

Fast 6-Second Splicing Performance
5-Inch HD Display with 400X Magnification
Multi-Fiber Compatibility
Rugged Field-Ready Design with Long Battery Backup

Brand Tumtec

Category Fusion Splicer

Model FST-18S

Availability In Stock

Physical

Dimensions	130W × 160L × 145H (excluding rubber bumper) 140W × 165L × 145H (including rubber bumper)
Weight	2204g (with battery) 1824g (without battery)

Fiber Compatibility

Number of Fiber	Single
Applicable Fibers	SM (ITU‑T G.652 & G.657) MM (ITU‑T G.651) DS (ITU‑T G.653) NZDS (ITU‑T G.655)
Compatible Fiber/Cable	0.25 – 3.0 mm Indoor Cable
Cleaved Length	Fiber Diameter: 0.125 – 1 mm Cleave Length: 8 – 16 mm
Cladding Diameter	80 – 150 μm

Splicing Performance

Splicing Mode	Pre-set 41 splicing modes, max 100 modes
Typical Splice Loss	SM: 0.03 dB MM: 0.02 dB DS: 0.05 dB NZDS: 0.05 dB G.657: 0.03 dB (ITU‑T Standard)
Return Loss	≥ 60 dB
Splicing Time	Quick mode: 6 seconds
Estimated Splice Loss	Available
Tension Test	1.96 – 2.25 N

Heating Performance

Heating Mode	Pre-set 5 heating modes (20/30/40/50/60mm), max 100 modes
Heating Sleeve Length	20 – 60 mm
Heating Time	Quick heating time: 13 seconds Typical heating time: 30 seconds

Display Features

Lighting	3 White LEDs
Display	90° bi-directional view, 5” Color High Resolution Display
Fiber View & Magnification	X, Y, XY / 400X Magnification

Operation & System

Results Storage	20,000 latest records & 200 images
Operating Methods	Button / Touch Screen
Automatic Calibration	Automatic arc calibration by air pressure and temperature
Electrode Life	5000 arcs
Terminal	Mini USB 2.0

Environment

Operating Condition	Operating Altitude: 0 – 5000 m above sea level Humidity: 0 – 95% RH Temperature: -10°C to +50°C Max Wind Speed: 15 m/s
Storage Condition	Humidity: 0 – 95% RH Temperature: -40°C to +80°C

Power

Power Supply	AC Input: 100 – 240V DC Input: 12 – 15V
No. of Splice/Heating with Battery	5200mAh Typical 250 times (Splice + Heat)

Warranty & Support

Warranty

2 years of Service & Parts + 3 Years' service only. (After 2 Years Parts need Extra pay)

FST‑18S Fiber Fusion Splicer – High Performance Single Fiber Splicing Machine

The FST‑18S Fiber Fusion Splicer is a professional single-fiber splicing solution designed for telecom, FTTx, ISP, and fiber optic network installations. Engineered for accuracy and reliability, this fusion splicer delivers fast 6-second splicing performance with stable, low-loss results for modern communication networks.

High Precision Fiber Alignment for Reliable Splicing

The FST‑18S supports single fiber splicing and is compatible with SM (ITU‑T G.652 & G.657), MM (ITU‑T G.651), DS (ITU‑T G.653), and NZDS (ITU‑T G.655) fibers. With 41 pre-set splicing modes (up to 100 modes), it ensures flexible and accurate fiber alignment for different network requirements.

Fast 6-Second Splicing with Low Loss Performance

Featuring a quick splicing time of 6 seconds and heating time of 13 seconds (quick mode), the FST‑18S improves work efficiency in field operations. Typical splice loss performance includes SM: 0.03dB, MM: 0.02dB, DS: 0.05dB, NZDS: 0.05dB, and G.657: 0.03dB (ITU‑T Standard), with ≥60dB return loss for stable fiber connections.

5-Inch High Resolution Display with 400X Magnification

Equipped with a 5-inch color high-resolution display featuring 90° bi-directional view, the device provides clear fiber imaging with X, Y, XY viewing options and 400X magnification. Three high-brightness white LEDs ensure visibility even in low-light environments.

Long-Lasting 5200mAh Battery for Field Work

The removable 5200mAh battery supports approximately 250 splice and heat cycles per charge, making it ideal for long-term field operations. The unit supports AC input 100–240V and DC input 12–15V for flexible power options.

Durable Design for Harsh Working Conditions

The FST‑18S operates at altitudes up to 5000 meters, in temperatures ranging from -10°C to +50°C, and humidity levels up to 95%. It stores up to 20,000 latest records and 200 images, features automatic arc calibration by air pressure and temperature, and provides an electrode life of 5000 arcs for long-term reliability.

Why Choose FST‑18S Fiber Fusion Splicer?

Fast 6-second splicing performance
Low typical splice loss with ≥60dB return loss
5-inch HD display with 400X magnification
5200mAh battery supporting up to 250 splice & heat cycles