Labels as Components: How a Label Feeder Works

A label feeder sits in a feeder slot and presents labels the same way a tape feeder presents parts. The placement machine keeps its own program, nozzle and vision settings; the feeder just makes sure there is a label waiting at the pick position when the head arrives. Here is what happens inside one machine cycle, and which numbers decide whether a given feeder fits your line.

From reel to nozzle: one cycle

Because the label arrives on a fixed pitch, the placement program treats it as a part: one feeder position, one nozzle, one pick coordinate. Sheet label feeders work the same way, with a 2–3 s cycle instead.

Specs that decide whether it fits

• Placement accuracy ±0.2 mm, angle ±0.5° — the same figures apply across the reel-fed range, so a label lands where the program puts it.
• Position adjustment by fiber sensor plus touch screen — you trim the pick position from the panel instead of moving the feeder body.
• Servo motor drive — the feed is driven, not sprung, so pitch stays stable across a full reel.
• Label width and lanes: the model carries a width range, not a single figure. LFSID-100S runs 5–98 mm wide labels with 1–8 fiber sensors and 1–8 material lanes; LFFUJI-100 is the Fuji build and runs 2–58 mm. The sheet line covers wider formats: the PLF-300 peels up to 300 mm.
• Reel size: inner diameter 76.2 mm, outer diameter 200 mm — this sets how much label stock you can load at once.
• Power: DC 24 V, 80 mA average and 1 A peak, supplied by a power source rated above 2 A — the average tells you running cost, the 2 A rating tells you what the machine cabinet has to provide. They are different numbers and both matter.
• Multiple columns supported — one feeder can carry several label columns at once, which is how a board with several labels is handled without adding feeder slots.

Where these labels end up

The application side decides what goes on the reel. In EMS plants the label is usually a serial or traceability label applied to the board; in consumer electronics and appliances it is a rating or compliance label on the housing; in automotive electronics the label carries part data that has to stay readable for the life of the vehicle; on FPC and flexible board work the same slot feeds stiffener steel sheets, mylar patches and dust mesh. All of those come on carrier tape, so all of them can be presented at the pick position the same way.

That shift is visible in the equipment market as well: market surveys published in 2026 put automotive electronics ahead of consumer electronics as the largest single source of SMT equipment demand. Work that used to be a manual operation after reflow has moved onto the placement line, where it shares the machine’s accuracy and its traceability records.

Does the machine need modifying?

Usually not. Three wiring modes cover the common installations:

If your placement machine can already control a tape feeder, the green-wire mode makes the label feeder look like one.

Picking the model

Two questions set the code:

1. Which placement machine family? The model segment names it — LFFUJI for Fuji, LFJUKI for JUKI, LFPANA for Panasonic, LFYAMAHA for Yamaha, LFSUMSUNG for Samsung/Hanwha, LFSIX for ASM X series, LFS for the classic body, LFSID for the standard body with an upward-facing screen, LFHZXB for the retract-stripping version.
2. What label width do you run? The number in the code gives the size class, and the specification page carries the exact range. LFSID-100S covers 5–98 mm with up to 8 lanes; LFFUJI-100 covers 2–58 mm and mounts on Fuji NXT machines.

The full range is on the label feeder line page, and each model has its own specification page — for example LFSID-100S.

What we need to confirm a match

Send the placement machine model, the label size (width × length) and how many columns you run, the label material, and whether the machine can spare a feeder signal line. With those five items we can name the code and the cable you need.