Contact Safety Light Curtain Manufacturer

A safety light curtain manufacturer supplies Type 4 machine-guarding systems that create a non-contact protective field to detect finger, hand, or body access and stop hazardous motion. Contact our Shenzhen team for standards-based model selection, application review, and a fast B2B quote for OEM, distributor, or retrofit projects.

Contact Our Safety Light Curtain Team

Tell us about your machine type, hazard zone, installation space, and application requirements. Our team will help you review the right safety light curtain solution and respond with suitable product recommendations for OEM, distributor, or retrofit projects.
Phone number
+86 189 2656 2511
Email address
[email protected]
Physical address
No. 3, Puxinhu Kuaiqiao Road, Tangxia Town, Pudong New Area
Working hours
Mon-Fri: 09:00 AM – 06:00 PM
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Frequently Asked Questions About Safety Light Curtains

Get clear answers on type 4 classification, IEC 61496 compliance, ISO 13849 PL fit, ISO 13855 safety distance, and how to choose the right safety light curtain for finger, hand, or body protection in machine guarding applications.

Type 4 is a high-performance classification for electro-sensitive protective equipment used in machine guarding. IEC 61496-1 defines the general requirements for ESPE, while IEC 61496-2 covers active opto-electronic protective devices such as safety light curtains. ESPE publishes Type 4 families positioned for ISO 13849-1 Cat.4 / PL e integration.

Start with the body part that must be detected, then match the required resolution and protective height to the machine opening. Smaller resolutions are used for finer intrusion detection, while larger beam spacing is used for broader access protection. If material must pass through the field, evaluate whether muting or blanking is needed for the application.

Safety distance is determined under ISO 13855. In practice, mounting position depends on approach speed, total stopping time of the machine and safety circuit, and the sensor’s detection capability. A common engineering approach is to calculate separation distance using the standard’s formula and then validate the final installation on the complete safeguarded system.

No. Type 4 describes the protective device classification, not the achieved safety level of the complete machine. The final result depends on the full safety architecture, including sensor, logic, actuators, wiring, stop-time performance, reset logic, EDM, and validation. ESPE’s light curtain materials publish Cat.4 / PL e, while broader SIL claims are tied to the total control-system design.

Muting is the safe, temporary suspension of the protective function during a controlled process such as material transfer. Blanking is a localized or continuous suspension of specific beams or zones so the system can ignore defined objects. EDM, or external device monitoring, checks the status of external relays or contactors before restart so faults in downstream switching devices can be detected.

For a faster and more accurate quote, provide the machine type, hazard point, opening size, required resolution, protective height, stop time, mounting distance, control voltage, and any special functions such as EDM, muting, or blanking. This helps the manufacturer recommend the correct Type 4, compact, or ultra-thin model for the application.