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Description

Compact line laser kit RED 50mW, IP65, water sealed, dust sealed

Line Laser Kit 50 mW Red (650 nm), incl. mount – LLM-SET-50-650WP: Ready-to-use line laser kit that projects a red laser line—includes a matching adjustable mount in a waterproof IP65 housing. Focus and line position are adjustable.

  • Red laser line (650 nm) with 50 mW
  • Ready-to-use kit including an adjustable mount
  • Adjustable focus and line position
  • Waterproof IP65 housing

The laser diodes are equipped with ACC control for high stability, as well as a startup ramp that slowly increases the current when the device is turned on, protecting the diode from inrush spikes.

Set consists of

  • Line laser module, fully calibrated and ready for use
  • Matching adjustable mount

Electrical connection

230V version: The 230V version includes a power cable with a hollow connector and a matching plug-in power supply.

12–25V version: The laser modules are equipped with a flexible connection cable. If you select the 24V version, a small adapter is heat-shrunk onto the power cable. The ends are open and fitted with wire end ferrules, allowing them to be connected directly to an existing power supply or a busbar. Reverse-polarity protection is built-in.

Technical Specifications

Laser power: 50 mW
Wavelength: 648–650 nm RED
beam angle: 110° total
Line length after 1 m: approx. 3 m
laser class: 1/2
230 VAC connection: Hollow connector + plug-in power supply, power cord approx. 2 m
12–25 V connection: Flexible cable with wire end ferrules, approx. 1 m
IP Rating: IP 65
Dimensions: approx. 18 x 100 mm
Service life: typically > 25,000 h when mounted on a metal mount
Temperature range: -15° C – 45° C

Installation and Line Length

The cylindrical housing, with a diameter of 18 mm, can be easily inserted into the included, adjustable mount. The line laser is clamped in place to prevent damage to the housing. At the same time, the heat generated—which is very low in these modules—is dissipated via the clamping mechanism onto a metal surface. The line position is easily adjusted by rotating the laser module in the mount. The sturdy aluminum mount can be adjusted and locked in pan and tilt positions. The mounting base also features a guide pin to ensure precise concentricity during the adjustment process. The mounting plate allows for attachment from both the front and the back via threaded inserts.

If the laser is mounted vertically above a work surface, the line length is determined by the distance and the projection angle. With angled mounting, the line length can increase significantly.

Notes

  • Observe the laser class!
  • Further information on laser safety can be found here.
  • For continuous operation, the module must be mounted in the mount

We are happy to answer any questions you may have regarding classification in your specific environment.

Properties
Mount: Pan/Tilt magnetic mount, Strong Pan/Tilt
Source: 12 - 25 VDC, 110 - 240 VAC, External battery source

At a distance of 1 m, the following lengths result (12-mm modules):

AngleDistanceLine length approx.
10°1 m17 cm
20°1 m35 cm
30°1 m54 cm
35°1 m63 cm
45°1 m83 cm
60°1 m116 cm
70°1 m140 cm
90°1 m200 cm
110°1 m300 cm

The line length increases linearly with distance; at a distance of 2 m, these values double.

Laser diodes react sensitively to voltage spikes and current fluctuations. An unregulated supply or one with peaks can destroy the diode within microseconds – even if the peak occurs only briefly. Stabilized means: constant output voltage under load (no sag during switch-on). Peak-free means: no switching spikes or overshoot on the supply lines. Always use a switching power supply with sufficient smoothing or a dedicated laser diode driver. Avoid unfiltered supplies, cheap plug-in adapters without filtering, and supplies that are shared with other switching loads.
Our 12 mm line laser modules are available with three connection variants:
Stranded wires (standard) – open red/black wires, approx. 100–200 mm length, for direct connection to microcontrollers or driver boards.
Barrel connector – 5.5 / 2.1 mm standard barrel plug, approx. 200 mm cable, for operation with a 230 VAC plug-in power supply.
Flexible cable with ferrules – approx. 100 cm flexible cable for direct connection to a 12–25 VDC machine controller. Reverse-polarity protection is integrated in the DC variant.

On request we also supply M8 / M12 connectors with custom cable lengths. The DC variant is particularly suited for retrofitting existing machines without 230 V wiring.
Acrylic optics (PMMA plastic): low cost, light, dimensionally stable. Optically very good in standard applications, but temperature-sensitive – the refractive index changes with temperature, shifting the focus when variation exceeds ±5 °C. Perfectly adequate for indoor applications with stable conditions. Glass optics: heavier, more expensive, but temperature-stable. The refractive index stays nearly constant across wide temperature swings. Ideal for: outdoor mounting, unheated halls, machines with large temperature swings (welding, sawmills in summer/winter) and applications needing high repeat accuracy over long periods. Glass optics are available as an optional upgrade on our KLM and LLM modules.
On our 12 mm line laser modules the line width – also called „focus“ – can be adjusted directly on the module. The optics sit in the front brass ring and can be turned precisely via a fine thread. Rotate the ring carefully until the desired line width appears sharp at your working distance. After adjustment, secure the optics with a drop of thread-locking varnish in the thread groove to prevent drift. The adjustment also works while the module is installed. On industrial line lasers (e.g. the IL-HP series) the line width is set at the factory to the customer specification. You can find out how to adjust the line here.
The laser class according to EN 60825-1 determines the required safety measures. Class 1: safe even when looking directly into the beam – ideal for open applications without protective measures. Class 2: visible lasers up to 1 mW, relying on the blink reflex – unproblematic in B2B environments. Class 1M / 2M: eye-safe under normal conditions, but not when viewed through magnifiers or binoculars. Class 3R: increased risk on direct viewing – safety goggles recommended. Class 3B: safety goggles mandatory. Line and cross-line lasers benefit from relaxed rules because they are classified as „extended sources“ (see laser safety).
The IP rating (International Protection) indicates which environmental influences the housing is protected against. IP 40: protected against solid objects > 1 mm, no water protection – for dry indoor use and machine integration. IP 44: also protected against splash water from all directions – typical for industrial halls and covered outdoor areas. IP 65: completely dust-tight and protected against water jets from any direction – the right choice for sawmills and circular saws (wood dust, sawdust), washing facilities, splash-water environments and rough industrial use.
The brightness of the laser line depends on many factors. In short:
Line length: The longer the line, the lower the brightness, as the light output is spread over a larger area
Laser color: Green appears significantly brighter than red or blue
Work surface: The darker and more matte the surface, the darker the light appears
Ambient brightness: The brighter the ambient light, the darker the laser line appears. This is due to the human eye, which reduces its sensitivity depending on the ambient brightness. In direct sunlight, it is very difficult to see a laser line because the retina is already saturated.
Laser power: The higher the laser power, the brighter the laser line

Wavelength in detail: The wavelength determines how visible the line is on your surface. Red (650 nm) is the lowest-cost option and sufficient in moderately lit indoor environments. Light red (635 nm) appears noticeably brighter than 650 nm at the same power. Green (520 / 532 nm) is the most universal choice – the human retina is most sensitive in the green spectral range, so green lines appear roughly 5–7× brighter than red at equal power. Blue (450 nm) delivers high contrast on greenish surfaces, where red and green fade into the background.
A line laser projects a line of light onto a surface – unlike a point laser, which only shows a single dot. The line is generated by a cylindrical lens that spreads the round laser beam into a fan. Typical applications include cut-line projection on saws, circular saws and CNC machines, workpiece positioning in manufacturing and machine integration, operator guidance at manual workstations, and reference lines in inspection and measurement setups. Line laser modules are available in different wavelengths (red, green, blue), power classes (1 – 500 mW) and IP ratings (IP 40 for dry indoor use up to IP 65 for sawmills and splash-water environments).