SinceVision's New SD33-300 and SD33-600: Long-Range Laser Displacement Sensors for Wide-Span Precision Measurement

SinceVision has expanded its SD33 series with two new long-range laser displacement sensors: SD33-300 and SD33-600. These models push the total detection distance to 1000 mm and a measurement span of up to 800 mm.

Designed for lithium battery, automotive, and consumer electronics manufacturing, they deliver non-contact distance measurement from a safe standoff position. System integrators and quality teams gain reliable dimensional data without risking collisions with large workpieces or moving equipment.

Key Specifications 

The SD33-300 and SD33-600 share the same core technology but serve different reach requirements.

SD33-300

Reference distance: 300mm
Measurement range: ±150mm
Repeatability: 30 µm
Linearity: ±0.25% F.S.

SD33-600

Reference distance: 600mm
Measurement range: ±400mm
Repeatability: 50µm
Linearity: ±0.25% to ±0.5% F.S.

The SD33-600 long-range laser displacement sensor covers an 800mm span while staying up to 1000mm away from the target. Such a broad window often replaces several fixed sensors or mechanical scanning setups.

Long Standoff Means Safer Integration

A longer reference distance lets you mount the sensor in a safe zone, away from robots, clamps, and fast-moving tooling. This reduces the chance of accidental contact, protecting both the sensor and your product.

1. The wide measurement ranges also simplify changeovers.

2. The SD33-300 handles ±150mm of height variation from a 300mm standoff.

3. The SD33-600 accepts ±400mm shifts from 600mm away.

4. You can inspect many part sizes without repositioning the sensor and keeping cycle times short.

Reliable Accuracy Shift After Shift

Both sensors use laser triangulation to capture surface position without contact. The linearity values confirm tight accuracy across the full measurement span. 

• The SD33-300 maintains ±0.25% F.S. linearity, which translates to stable step height and flatness checks on critical assemblies. 

• The SD33-600 delivers ±0.25% to ±0.5% F.S. linearity despite its extreme reach, so wide-area contour measurement stays precise enough for quality decisions.

Repeatability is equally important for inline inspection. The SD33-300 posts 30µm repeatability, and the SD33-600 delivers 50µm. Low measurement fluctuation helps you avoid false rejects and unplanned line interruptions.

Application Highlights

1. Measurement of Large Metal Workpieces

Automotive body panels, castings, and structural stampings demand flatness and step verification early in the process. The sincevision SD33-600 sensor can measure these parts from a distance of up to 1000mm. Its wide span captures the entire surface region without swapping sensors, boosting inspection throughput.

2. Marking Machine Height Guidance

Laser marking and dot engraving require a precise focal distance to keep characters sharp and depth even. An SD33-300 or SD33-600 laser displacement sensor mounts beside the marking head. It feeds real-time height data to the Z axis, correcting for surface waviness on battery cases, electronic housings, or curved covers.

3. Lithium Battery and Consumer Electronics Manufacturing

Large-format battery trays and cell arrays need non-contact distance sensors to check coplanarity without resting weight on delicate terminals. In consumer electronics production lines, the same sensor family verifies connector seating and module profile, all from a protected distance.

Why Manufacturers Choose SinceVision for Industrial Laser Measurement

SinceVision builds laser displacement sensors that plug into real production flows. Our team works alongside system integrators to select the right model, mount strategy, and output configuration.

We offer startup guidance so you can get accurate readings quickly. Long-range industrial laser measurement helps you monitor critical dimensions without obstructing your machine layout. The SD33 series gives you high repeatability and wide span in a package that keeps your line moving.

Frequently Asked Questions

A. What is the maximum measurement range of the SD33-600?

The SD33-600 has a reference distance of 600 mm and a measurement range of ±400 mm, providing an 800 mm total window. The sensor can detect from as far as 1000 mm. This span allows inspection of large parts without movement.

B. Can the SinceVision SD33-300 sensor measure shiny or dark surfaces?

Yes. Advanced optical design and signal processing deliver stable readings on a broad range of surface finishes. For extremely reflective or dark materials, we recommend a quick feasibility test.

C. Which industries benefit most from these long-range models?

Lithium battery manufacturing, automotive component and body-in-white inspection, and consumer electronics (3C) processes. Any application needing a safe standoff with high repeatability is a good fit.

D. How do I integrate the SD33 sensor into my automation system?

The sensors provide standard analog and digital outputs. SinceVision supplies detailed reference materials and offers integration support tailored to your machine control architecture.

Request a Free Consultation or Demo

Try the SD33 long-range laser displacement sensor on your own part. Our team will discuss your measurement task and help arrange a demonstration.

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