Name: 12 mm Ultra-Thin Parallel/Cross-Beam Light Curtains
Brand: TAKEX Takenaka Engineering Co., Ltd.
SKU: TAKEX_SSX20

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TAKEX_SSX20

12 mm Ultra-Thin Parallel/Cross-Beam Light Curtains

TAKEX SSX20 Series 12 mm ultra-thin light curtains switch between parallel and cross-beam modes.
Eight models provide 160–720 mm detection widths, 20 mm beam pitch, sensing up to 4 m, detection down to Φ15 mm in cross-beam mode, selectable NPN/PNP output, and IP65 protection.

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Features
Specification
FAQ

Features

12 mm ultra-thin housing: The 12 × 30 mm body uses an aluminum case with die-cast zinc mounting sections for compact installation and improved mechanical robustness.
Selectable parallel and cross-beam modes: Parallel mode detects opaque objects Φ25 mm or larger, while cross-beam mode detects objects down to Φ15 mm within the specified effective sensing area.
Selectable NPN/PNP output: The same sensor supports either NPN or PNP open-collector output through wiring, eliminating the need for separate output models.
Up to 1,440 mm combined detection area: Two sensors can be stacked in parallel-beam mode while maintaining a 20 mm beam pitch to create a detection area up to 1,440 mm.
Automatic compensation and anti-interference: Automatic sensitivity compensation, reverse-polarity protection, and short-circuit protection are included. Parallel-beam mode supports anti-interference operation for up to two sensor sets.

Specification

Item	Spec.
Product type	12 mm ultra-thin parallel/cross-beam light curtain sensor
Current models	SSX20-T160 SSX20-T240 SSX20-T320 SSX20-T400 SSX20-T480 SSX20-T560 SSX20-T640 SSX20-T720
Detection method	Through beam
Beam modes	Parallel beam / cross beam selectable
Housing dimensions	12 mm thick × 30 mm wide
Parallel-beam detecting distance	0–4 m
Cross-beam detecting distance	0.5–4 m
Parallel-beam minimum target	Opaque Φ25 mm or larger
Cross-beam minimum target	Opaque Φ15 mm or larger within specified effective area
Beam interval	20 mm
Number of optical axes	9, 13, 17, 21, 25, 29, 33, 37
Detection width	160, 240, 320, 400, 480, 560, 640, 720 mm
Power supply	12–24VDC ±10%, ripple 10% or less
Current consumption	75–120 mA or less depending on model
Control output	NPN/PNP open collector, wiring selectable
Operation mode	ON when all beams are received; OFF when any beam is blocked
Parallel beam blocked response	20 ms or less
Parallel beam received response	30 ms or less
Cross beam blocked response	30 ms or less
Cross beam received response	50 ms or less
Light source	850 nm infrared LED
Case material	Aluminum
Front cover material	Polycarbonate
Mounting section	Die-cast zinc
Ambient light	10,000 lx or less
Operating temperature	−10 to +55°C, non-freezing
Ambient humidity	35–85% RH, non-condensing
Protective structure	IP65

Specification notes

Φ15 mm detection in cross-beam mode is limited to the effective sensing area, approximately the central three-quarters between the transmitter and receiver.
NPN and PNP are selectable by wiring on the same sensor. The eight models therefore differ mainly by detection width rather than output type.
The 1,440 mm stacked detection area and two-set anti-interference function apply to parallel-beam mode only, with the 20 mm optical-axis pitch maintained between stacked sensors.

FAQ

Q1: What is the TAKEX SSX20 Series?
A: The SSX20 Series consists of 12 mm ultra-thin through-beam light curtains with selectable parallel and cross-beam sensing modes.

Q2: What models are available?
A: Eight models are available: SSX20-T160, T240, T320, T400, T480, T560, T640, and T720, covering 160–720 mm detection widths.

Q3: What is the detecting distance?
A: Parallel-beam mode operates from 0 to 4 m, while cross-beam mode operates from 0.5 to 4 m.

Q4: What is the minimum detectable object?
A: Parallel mode detects opaque objects Φ25 mm or larger. Cross-beam mode detects objects down to Φ15 mm within the specified effective area.

Q5: What is the beam interval?
A: All SSX20 models use a 20 mm optical-axis interval.

Q6: Are separate NPN and PNP models required?
A: No. The same SSX20 sensor can be wired for either NPN or PNP open-collector output.

Q7: What is the difference between parallel and cross-beam modes?
A: Parallel mode provides faster response and supports anti-interference, while cross-beam mode improves detection between optical axes for smaller or randomly oriented objects.

Q8: Can two SSX20 sensors be stacked together?
A: Yes. In parallel-beam mode, two sensors can be mounted directly together while maintaining a 20 mm beam pitch, creating a detection area up to 1,440 mm.

Q9: What is the protection rating?
A: The SSX20 Series is rated IP65 and uses an aluminum case with die-cast zinc mounting sections.

Q10: What applications are suitable for the SSX20 Series?
A: Applications include randomly oriented moving or falling workpieces in metal processing and leading-edge detection of objects with different heights and shapes in conveyor systems.

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