Welding and stamping cells
Metal body tolerates spatter and mechanical knocks.
Photoelectric · Ultra-compact metal body
LMX Ultra-Compact Photoelectric Sensor
A metal-bodied 25 mm sensor with a red and green indicator: 80 mm diffuse, 500 mm and 2,000 mm through-beam, ≤1 ms response, IP65.
Model LMX-MB08 / M50T / M200T · Brand LE Raun · Category: Photoelectric Sensors
Range80 mm – 2 m
Response≤1 ms
BodyMetal
ProtectionIP65
Overview
A metal housing in a 25 mm body is aimed at the places where a plastic sensor gets broken: fixture clamps, welding cells, machine beds where a tool can swing past. The die-cast body also keeps the optical axis stable when the bracket is over-tightened, which plastic bodies do not.The red and green indicators separate the two questions an operator actually asks — is it powered, and is it detecting. The through-beam versions reach 2 m at 1 ms, and the M200T switches to an 850 nm infrared source for longer range and less sensitivity to ambient light.
Application scenarios
Fixture confirmation
Detects the workpiece seated in a clamp.
Conveyor transfer points
Through-beam pair confirms the part crossed the gap.
Packaging machine guards
Detects an obstruction in a non-safety opening.
Tool-present detection
Senses a drill or tap in the spindle.
Industries
- Automotive
- Machine tools
- Metalworking
- Electronics
Technical specifications
| Models | LMX-MB08RN/P · LMX-M50TN(P) · LMX-M200TN(P) |
|---|---|
| Sensing method | Diffuse reflection (MB08) · through-beam (M50T / M200T) |
| Sensing distance | 80 mm (MB08) · 500 mm (M50T) · 2,000 mm (M200T) |
| Sensing object | Opaque objects φ1 mm and above (MB08) · φ2 mm and above (M50T / M200T) |
| Output mode | NPN or PNP open-collector |
| Spot size | φ3 mm / 30 cm |
| Response time / frequency | ≤ 1 ms |
| Light source | 650 nm visible red light (850 nm infrared on M200T) |
| Indicator | Red: lit when output active · green: power indicator |
| Operating voltage | 12–24 V DC ±10% |
| Protection level | IP65 |
| Cable exit type | Cable-out type (standard 2 m) |
| Product application | Presence-absence detection, PCB board detection and other workpiece detection; suitable for various scenarios |
| Current consumption | ≤15 mA |
| Output current | ≤100 mA |
| Residual voltage | ≤1.5 V |
| Circuit protection | Short-circuit, reverse polarity, over-current |
| Ambient illumination | Incandescent ≤3,000 lux, sunlight ≤10,000 lux |
| Vibration / shock | 10–55 Hz 1.5 mm, 500 m/s² (X, Y, Z each 2 h) |
Dimensions
| Item | Value |
|---|---|
| Mounting holes | 2 × M3, 15.0 mm pitch |
| Cable | 2 m, 4-core |
Wiring & output
| Lead | Colour |
|---|---|
| 2 | Blue |
| 3 | Black |
| 4 | White |
| — | Grey (5-wire types) |
How to specify
- 01
Choose the detection mode
Through-beam for the longest range and the most reliable operation in dust; retro-reflective for one-sided wiring over a few metres; diffuse for colour-independent presence at short range; background suppression where the conveyor or the machine frame sits behind the target.
- 02
Check the target and the background
A diffuse sensor sees the target, not the gap: a dark matt object halves the range. Background suppression types are set by distance, so the background must be at least 20 % further away than the target.
- 03
Match the light spot to the part
A 10 mm spot on a 2 mm wire gives a weak, unstable signal; choose a lens with a small spot at the working distance, or switch to a laser type.
- 04
Decide the output and the housing
NPN for Asian PLC inputs, PNP for European; 4-wire when the PLC needs both states. Square plastic for general use, stainless for washdown, fibre-optic where the space is too tight.
Why this series
Metal body
Survives contact with fixtures, chips and tools where a plastic housing cracks.
Red and green indicators
Power and output state readable from the machine door.
2 m through-beam at 1 ms
Covers a wide opening without losing response speed.
Questions
Why metal instead of plastic?
Mechanical survival and axis stability. Where a sensor is exposed to knocks, chips or over-tightened brackets, a die-cast body lasts.
What is the difference between M50T and M200T?
Range: 500 mm and 2,000 mm. The M200T also uses an 850 nm infrared source.
Can the indicators be seen from outside the machine?
They are on the body face; mount with the face toward the door if operators need to read them.
Need a quotation for LMX Ultra-Compact?
Send your application details or the guard opening dimensions and we will specify the right model and configuration for your machine.