Industrial Safety Wings: Comprehensive Comparison of DAIDISIKE DQA Series Safety Light Curtains and DLD5 Safety Laser Scanners
In the field of modern intelligent manufacturing and industrial automation, the safety of personnel and the efficient operation of equipment are at the heart of business development. As a leading brand in the field of industrial safety and protection, DAIDISIKE is committed to providing highly reliable non-contact safety solutions. In this article, we will focus on DAIDISIKE's two flagship products — DQA series safety light curtains and DLD5 series of safety laser scanners for multi-dimensional comparison, to help you choose the most ideal security solutions according to the actual working conditions.
First, the Core Product Overview
1. DAIDISIKE DQA Series Safety Light Curtain
DQA series is a high-precision counter-reflective photoelectric device specially designed for the protection of fixed workstation. It achieves precise intrusion detection of fingers, hands or body parts through a dense infrared light curtain formed between the emitter and receiver. Its core advantages are extremely fast response time and high safety level (up to PL e support), making it the first choice for presses, punching machines and automated assembly lines.
2. DAIDISIKE DLD5 Series Safety Laser Scanners
The DLD5 series represents DAIDISIKE's cutting-edge technology in the field of area monitoring. Based on the Time-of-Flight (ToF) ranging principle, the DLD5 constructs a programmable two-dimensional protective zone by scanning with a 270°/360° laser rotation. It not only provides a safe emergency stop signal, but also a deceleration warning by setting up a warning zone, which is ideal for complex or irregular scenarios such as AGV obstacle avoidance and robot workstations.
Second, the Key Parameters and Performance Depth Comparison
| Comparison Dimension | DAIDISIKE DQA Series Safety Light Curtain | DAIDISIKE DLD5 Series Safety Laser Scanner | Selection Reference |
|---|---|---|---|
| Detection Principle | Infrared Alignment Interruption Detection | Laser Time of Flight (ToF) Area Scanning | DLD5 More Flexibility |
| Resolution | 14mm / 20mm / 30mm | 30mm / 40mm / 70mm | DQA Suitable for precision protection |
| Response Time | ≤ 15 ms | 60 ms – 100 ms | DQA Supports shorter safety distances |
| Shape of Protection | Fixed rectangular planar surface | Arbitrary shapes (polygons, circles) | DLD5 Adapts to complex spaces |
| Protection Range | Up to 2.5 m height, 15 m distance | Radius up to 5 m / 20 m | DLD5 Large area coverage |
| Safety Class | Type 4 / PL e / SIL 3 | Type 3 / PL d / SIL 2 | DQA Higher level |
| Installation | Pair mounting, precise optical alignment required | Single mounting supported | DLD5 Easier to install |
III. DAIDISIKE Product Advantages Summary
- Extreme Safety: Complies with high international safety standards, with dual redundant outputs to ensure safe system shutdown.
- Blind Zone Filtering: Excellent muting and shielding functions for human intrusion detection.
- Cost-effective: Standardised protection for stationary operating positions.
- Dynamic Zoning: Supports the free switching of multiple groups of zones based on speed.
- Intelligent warning: Multi-level settings to reduce unnecessary downtime.
- No dead-end monitoring: Covers corners that are hard to reach by a single device.
IV. Application Scenario Adaptation Suggestions
1. Preferred Scenarios for DAIDISIKE DQA Series:
- Close Precision Protection: Punching presses and bending machines using 14mm resolution.
- Linear entrances and exits: Fixed infeeds in automated production lines.
- High Frequency Trigger: Scenarios requiring response times of 20ms or less.
2. Preferred Scenarios for DAIDISIKE DLD5 Series:
- Collision Avoidance: 360° Obstacle Avoidance for AGVs and AMRs.
- Open and irregular areas: Collaborative robot workstations and large 5-axis machining centres.
- Harsh Conditions: Use where real-time software monitoring of the scene is required.
