The Cost-Effective Choice: DADISICK LD-05D & LD-20D vs. KEYENCE SZ-V & SZ Safety Laser Scanner Comparison
KEYENCE SZ-V and SZ Series Safety Laser Scanners Overview
KEYENCE SZ-V Series Safety Laser Scanners
Models: SZ-V04, SZ-V04X, SZ-V32, SZ-V32X
The SZ-V series meets Type 3 high safety standards and is the world’s first safety scanner integrated with a camera and a detachable display for remote access. It offers a maximum protection range of 8.4 meters and a detection angle of 190°. The new concept of “main unit LCD display” + “separate system” successfully resolves the inherent issue of traditional laser scanners being “non-visual.”
KEYENCE SZ Series Safety Laser Scanners
Models: SZ-01S, SZ-04M, SZ-16V
With a maximum protection range of 4.2 meters and a detection angle of 270°, this ultra-compact Type 3 safety laser scanner can configure up to 16 protection zones and 32 warning zones. It includes various built-in features to adapt to different detection requirements, with simple software settings for ease of use.
Working Principle of the KEYENCE SZ-V and SZ Series
The working principle of the Keyence SZ-V series safety laser scanner is based on Time of Flight (TOF) technology, as follows:
• Laser Emission: The SZ-V series emits an invisible infrared laser beam, which is projected onto surrounding objects or the environment.
• Laser Reflection: When the laser hits an object, it reflects back to the scanner’s receiver.
• Time of Flight Calculation: The scanner measures the time it takes for the laser to return after emission, calculating the distance between the object and the scanner based on this time.
• Area Detection: The SZ-V series scans predefined areas. If an object enters one of these areas, the system responds according to preset parameters, such as issuing a warning or halting machinery.
• Programmable Safety Zones: Users can define up to three independent safety and warning zones, allowing the scanner to monitor and react to objects in real time.
• Multi-functional Integration: This series also includes advanced detection capabilities, such as object shape analysis and multi-angle coverage, enhancing accuracy and safety.
Differences Between Keyence SZ-V and SZ Series
SZ-V Series:
• Complies with Type 3 safety standards and features a new "barrel-type" structure, making it more robust and resistant to vibration. It also employs a new detection algorithm to minimize the impact of external factors like dust on detection accuracy.
• Ideal for applications requiring higher precision and longer detection distances, such as safety protection in large factories and warehouses with automated equipment.
• The world’s first safety scanner with a built-in camera, offering real-time visual feedback.
SZ Series:
• While it also meets high safety standards, it is less advanced in interference resistance and physical structure compared to the SZ-V series. The SZ series offers a maximum protection range of 4.2 meters, whereas the SZ-V series can extend up to 8.4 meters.
• Due to its compact and flexible design, it is better suited for limited spaces or applications where it needs to be installed on AGVs (Automated Guided Vehicles).
• Does not have a built-in camera feature.
Conclusion:
The SZ-V series represents Keyence's high-end product line, with superior performance and more powerful features, while the SZ series is widely used for its compact design and cost-effectiveness. The choice between the two depends on specific application needs.
Why Choose DADISICK’s Replacement Solution?
1️⃣ Equipment Failure: The original product is damaged or malfunctioning, requiring a timely replacement to ensure continuous production and safety.
2️⃣ Discontinued Products: The original brand has discontinued the product, making it difficult to find a replacement in the market, and a reliable alternative is urgently needed.
3️⃣ Cost Control: With a limited purchasing budget, there’s a need to select a more cost-effective brand without compromising product performance and safety standards.
4️⃣ Diverse Options: DADISICK offers a wide range of products, not only ensuring high quality but also providing various solutions for different applications, all with excellent cost performance.
KEYENCE SZ-V & SZ Series Safety Laser Scanner Replacement
Overview of Features: LD-05D and LD-20D Series Safety Laser Scanner
Similar to the SZ-V and SZ Series, the LD-05D and LD-20D operate based on the Time of Flight (TOF) principle, with maximum detection distances of 5 meters and 20 meters, respectively. Even in harsh conditions where the object's reflectivity is as low as 10%, their detection performance remains excellent, reaching 2.5 meters and 8 meters, respectively. Both models feature a 270° scanning angle and are equipped with 16 zone group control functions, making configuration and setup quicker and easier. The automatic learning function allows them to adapt to real-world scenarios, ensuring precise contour monitoring.
Typical applications include anti-collision protection for bridge crane bases, AGV (Automated Guided Vehicle) navigation, crane collision prevention systems, vehicle detection in parking lots, container stacking measurement, and alarm systems for detecting when people or objects approach.
In terms of size, both the LD-05D and LD-20D are highly compact, measuring only 50 x 50 x 76 mm, making them ideal for installation in space-constrained environments.
Specification: Safety Laser Scanner LD-05D & LD-20D Series
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Technical data
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Working principle
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TOF (Time of Flight) |
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IO output | NPN or PNP | |||
Work area | 0.05 m ~ 5 m | 0.05 m ~ 20 m | ||
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Laser source
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905 nm (class I) |
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Aperture angle
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270° |
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Scanning frequency | 15 Hz / 30 Hz | |||
Angular resolution | 0.1° / 0.3° | |||
Self-learning function | Automatically scan the environment and generate areas | |||
Electrical connections | Db15 Male / Scatter | |||
Supply voltage | DC 9 V ~ 28 V | |||
Power consumption | 2 W | |||
Switch drive | DC 30 V 50 mA max. | |||
Shell color | Yellow | |||
Enclosure rating | IP65 | |||
Weight | 150 g (cable not included) | |||
Dimensions (L × W × H) | 50 × 50 × 76 mm | |||
Detectable object shape | Almost any shape | |||
Measurement error | ±30 mm | ±30 mm | ||
Number of field sets | 16 fields, 3 simultaneous protective fields (per field set) | |||
Connection type | Micro-USB | |||
Input | GND/NC × 4 | |||
Switch output | NPN × 3, device working status; PNP × 3, device working status | |||
Delay time | 100 ms ~ 10,000 ms (configurable), typical value 330 ms | |||
Response time | 15 Hz: 67 ms ~ 29,949 ms (configurable), typical value 134 ms; 30 Hz: 33 ms ~ 29,997 ms (configurable), typical value 66 ms | |||
Status Indicator | Status indicator × 1, area group indicator × 3 | |||
Vibration resistance
| 10 - 55 Hz, amplitude 0.75 mm, XYZ three-axis, 2 hours per axis;
50 - 200 Hz, 196 m/s² (20G), scanning speed 2 min/cycle, XYZ three-axis, 2 hours per axis; | |||
Ambient operating temperature | -10 ℃ ~ +55 ℃ | |||
Storage temperature | -30 ℃ ~ +75 ℃ | |||
Ambient light immunity | ＞15,000 lux | |||
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FAQs About Replacement Services
Q: Can the replacement product meet the performance requirements of the original product?
A:
To select a suitable replacement product, determine the specifications and features of the existing light curtain. Consider factors such as detection range, resolution, response time, and safety level. Then, use this information to compare with our product catalog to ensure that the new model can meet or exceed the performance of the existing product.
of course, You can also provide us with the brand + model of the existing product, and our customer service will match the right product for you.
Q: What is the quality of the replacement product?
A:
Our light curtain products have been rigorously tested and comply with relevant safety standards in many countries and regions, such as China GB/T 19001-2016, lSO 9001:2015 standard safety level, EU CE certification and SÜD TUV certification.
Q: How do your company's products compare to competitors in the market?
A:
Our safety sensors stand out for their advanced technology and excellent performance. Our sensors have unparalleled accuracy, reliability and response speed. Like our competitors, they meet the application needs of a variety of working scenarios, but our products are more affordable. With innovative functions and rugged structure, they ensure that sensors can function accurately, efficiently and stably in industrial environments for a long time.
Disclaimer: The brands and specifications shown on this page are for product comparison and selection purposes only. Our safety laser scanners are manufactured by DADISICK and are not official products of the listed brands. DADISICK offers replacements compatible with these brands' products. We do not own the rights to any of the mentioned brands. If you need to purchase official brand products, please contact the brand official representative.
