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SICHANGO Flexo Camera Systems: SCOUT 3 vs 4000M vs OV100/200
Flexographic Printing · Inline Vision
SICHANGO Camera Systems for Flexo Presses
SCOUT 3 · Observer 4000M · OVERSEER 100 · OVERSEER 200 — a practical comparison for narrow‑web and wide‑format flexo printers.
A flexographic printing camera system mounts directly on your press and captures real‑time images of the moving web at full production speed — typically 300 to 600 m/min. It catches defects while the press runs, reduces waste, and stops bad impressions from reaching the rewinder. This guide covers four SICHANGO models: SCOUT 3, Observer 4000M, OVERSEER 100 (OV100), and OVERSEER 200 (OV200).
What a flexographic camera system actually does
Registration
Compares print registration marks across CMYK channels to detect X/Y drift before it exceeds tolerance.
Color deviation
Tracks Delta‑E shifts in ink density and tone, keeping color within spec.
Defect ID
Flags missing print, streaks, scratches, ink smear, and pinholes in real time.
Position logging
Records each defect’s exact position for rewinder splicing or post‑press sorting.
Systems differ in field of view, hardware configuration (fixed vs. traversing), and software intelligence (manual vs. automated reference‑based inspection).
SICHANGO model overview
| Model | Field of view | Positioning | Best fit |
|---|---|---|---|
| SCOUT 3 | Compact (narrow web) | Fixed or minimal traverse | Tight installation spaces |
| Observer 4000M | Flexible | Motorized traverse | Standard flexo workhorse |
| OVERSEER 100 | 100 × 75 mm | Fixed + optional rail | Balance of coverage & resolution |
| OVERSEER 200 | 200 × 120 mm | Motorized traverse | Wide layouts, dual‑camera |
OV100 and OV200 represent SICHANGO’s newer OVERSEER platform with a touchscreen task‑based interface. Observer 4000M is the established mid‑range option for label and flexible packaging retrofits. SCOUT 3 is the most compact option.
SCOUT 3 compact
The SCOUT 3 is designed for presses where a full traverse rail and large camera housing won’t fit. Narrow web flexo presses from Mark Andy, Nilpeter, and Gallus often run in compact footprints where adding a large inspection head creates mechanical interference. The SCOUT 3 uses a smaller camera housing and a streamlined mounting approach — you get real‑time defect detection for the zones you define, without full‑width scanning.
Registration & color monitoring
Limited overhead clearance
~2 hour typical installation
Factory‑prepared mounting kits
Observer 4000M proven mid‑range
The Observer 4000M is the model most frequently referenced in SICHANGO’s existing installation base, particularly for flexographic presses running labels and flexible packaging. It supports motorized camera traverse across the web, enabling full‑layout scanning at production speeds.
HD CCD camera
Motorized rail
AutoScan golden reference
Narrow & medium web
Mark Andy, Nilpeter, BOBST, W&H
The 4000M is the right starting point if you need automated reference‑based inspection but don’t require the larger field of view or dual‑camera capability of the OV200.
OVERSEER 100 (OV100) balanced
The OVERSEER 100 uses a 100 × 75 mm field of view — the same FOV as the Observer 4000M camera standard, making the OV100 a direct successor in coverage. What distinguishes it is the hardware platform and interface upgrade.
12 MP image sensor
20X optical zoom lens
Task‑based touchscreen GUI
PPS (fixed‑point cruise)
AutoScan rapid full‑format
Ideal when 100 mm FOV is adequate and you want the newer OVERSEER software ecosystem without the larger OV200 camera.
OVERSEER 200 (OV200) wide format
The OVERSEER 200 is the premium model in SICHANGO’s current lineup. Its defining feature is the 200 × 120 mm ultra‑wide field of view — double the width of the OV100 in both dimensions. For wide‑layout flexo work, this means fewer camera passes and faster overall inspection.
Dual‑camera collaboration
UV light option
20X optical zoom + 12MP
Front‑and‑back overprint
Die‑cutting alignment checks
Choose OV200 when layout exceeds 100 mm, you need dual‑sided inspection, or you work with UV inks and specialty coatings. Largest model, requires adequate rail mounting space.
Making the choice: practical decision factors
Field of view first
If critical layout areas fit within 100 × 75 mm and don’t require simultaneous wide coverage, OV100 or Observer 4000M is sufficient. OV200’s larger FOV only adds value when you need to see more layout at once.
Rail space & installation
SCOUT 3 exists because some presses can’t accommodate a full traverse rail. Measure overhead space before selecting. All SICHANGO systems ship with factory‑prepared mounting kits.
UV inks & specialty substrates
If you run UV‑curable inks or varnishes that require ultraviolet illumination, the OV200 with UV light option is the only model in this comparison that explicitly supports it.
Dual‑sided requirements
Front‑and‑back printing with overprint registration is common in certain label and packaging segments. Only the OV200 supports dual‑camera operation in this lineup.
Frequently asked questions
What’s the maximum speed?
SICHANGO systems support press speeds up to 600 m/min for standard configurations, with some camera specs rated up to 1200 m/min depending on field of view and resolution. Real‑world performance depends on lighting, substrate reflectivity, and defect types.
Do these work with my existing press brand?
Yes — designed for retrofit onto most flexographic presses. Confirmed compatibility with Mark Andy, Nilpeter, BOBST, Windmöller & Hölscher, Comexi, Uteco, Gallus, Edale, and others. Requires encoder coupling and digital I/O.
Can I add a system later?
Retrofit installation is standard. Factory‑prepared mounting kits and pre‑configured cabling mean ~2 hours for a basic setup. Modular — start with one camera and add traverse rails or a second camera later.
What about color management?
All four models support Delta‑E color deviation monitoring. AutoScan builds a golden reference on job start and monitors CMYK channels for drift. OV200’s larger FOV shows more color patches at once, speeding up verification.
Summary: For flexo printers evaluating camera‑based inspection, the choice between SCOUT 3, Observer 4000M, OV100, and OV200 comes down to three practical questions — How much layout do you need to see at once? Do you have room for a traverse rail? And do you need UV or dual‑camera capability? The SCOUT 3 solves installation constraints; the 4000M and OV100 handle standard narrow‑to‑medium web flexo; the OV200 addresses wide layouts, UV inks, and dual‑sided inspection. All four integrate with the same core SICHANGO software platform.
SICHANGO Flexographic Printing Camera Systems — SCOUT 3 · Observer 4000M · OVERSEER 100 · OVERSEER 200
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