Cambridge Technology 6240H Galvanometer Scanner

The Cambridge Technology 6240H Galvanometer Scanner is engineered for high-performance laser beam steering applications, offering precision and speed critical for tasks such as laser marking, engraving, and other advanced optical processes. This moving-magnet actuator galvanometer is designed to provide ultra-high speed and accuracy, making it suitable for demanding industrial and scientific applications where rapid and precise laser beam positioning is paramount.

### Technical Specifications

* **Model:** 6240H
* **Actuator Type:** Moving-magnet
* **Typical Beam Diameters:** 12mm, 15mm, 20mm, 25mm, 30mm
* **Recommended Aperture Size:** 12 to 25 mm
* **Maximum Scan Angle:** 40 Degrees (optical, peak-to-peak)
* **Mechanical Angle:** Up to ±20 degrees
* **Settling Time:** Achieved within 99% of final position for a 0.1° step, using CTI’s recommended servo and a 10mm Y-mirror
* **Position Detection:** Patented position detector technology for stable positioning and fast scan speeds
* **Torque Characteristics:** High torque generation due to moving magnet actuator, enabling short step response times. No saturation torque limit and very little electrical inductance
* **Bandwidth:** High closed-loop bandwidth for high positioning speed and precision
* **Accuracy:** High-accuracy output across a diverse range of scanning needs
* **Repeatability:** Instrumentation level accuracy and stability
* **Linearity:** 99.9% (minimum) over ±10° mechanical
* **Scale Drift:** 50 PPM/°C (maximum)
* **Zero Drift:** 15 µradians/°C (maximum)
* **Repeatability (Short Term):** 8 µrad (maximum)
* **Output Signal (Differential Mode):** 11.7 ±20% µA/°diff. @ ICOM=155 µA
* **Output Signal (Common Mode):** 155 ±20% µA @ ILED=30 mA
* **Position Detector Power Requirements:** 30 ±20% mA, DC 1.4 Nom volts
* **Maximum Rotor Temperature:** 110 °C

### Electrical and Performance

* **Power Dissipation:** Scanner mount must dissipate 9.7 watt/°C for a mount temperature of 40°C. In an XY mount, it must dissipate 18.4 watt/°C for a mount temperature of 40°C.
* **RMS Speed:** High RMS speeds at wide angles
* **Step Response Time:** Fastest achievable due to high peak accelerations and strong magnetic field

### Physical and Mounting

* **Mounting:** Requires adequate heatsinking. A cylindrical, compression-style aluminum mount is preferred, ensuring maximum contact with the mounting surface to minimize thermal resistance.
* **Thermal Management:** Never operate the scanner without a heatsink; irreparable damage will occur. Use thermal grease between the scanner and heatsink for optimal heat dissipation.
* **Mirror Attachment:** CTI recommends using compression-style mirror mounts that grip the scanner shaft. Avoid mounts that use set screws driven into the scanner shaft, as this can cause damage.
* **Bumpers:** Standard bumpers are included. Models with “-M” designation (e.g., 6240HMXX) have reduced angle bumpers, optimized for XY systems to minimize space between scanners.
* **Dimensions:** Specific dimensions are available in technical documentation; view from connector end shows a diameter of approximately 20.4 mm.

### Handling and Precautions

* **Shaft Handling:** Avoid impacting the front shaft on hard surfaces. Do not pull or push the front shaft with anything other than light finger pressure to prevent damage to the front bearing.
* **Environmental Exposure:** Do not expose the scanner to temperature extremes outside operating limits or allow foreign materials (dust, dirt, solvents, water, oil) to contact the front bearing.
* **Overheating:** Never run the scanner without a heatsink attached, as rapid heating and irreparable damage will occur.
* **Controlled Operation:** Always keep the motor under proper servo control and avoid uncontrolled swinging into bumper stops.
* **Laser Safety:** The end-user is responsible for limiting the exit window of the laser beam to ensure laser safety, as the scanner can point the beam anywhere within approximately 200° optical during shutdown or malfunction.
* **RoHS Compliance:** Some models are RoHS compliant; ensure compatibility with leaded solder if applicable.

Why Choose Aumictech for Cambridge Technology 6240H Galvanometer Scanner?
At Aumictech, we specialize in supplying high-end laser scanning equipment. Whether you need precise laser beam steering, ultra-high speed positioning, or robust performance for demanding applications, our team ensures the Cambridge Technology 6240H Galvanometer Scanner delivers maximum performance for your application.