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Balluff’s BML magnetic linear encoder system is ideal for use in harsh, dusty industrial environments.

It consists of a sensing head and magnetically encoded tape, making a highly precise, fast-response and very rugged measuring system.

As the system works magnetically, in contrast to optical systems it is very insensitive to contamination from oil and dust.

The BML works on the principle that the sensor head glides over magnetised tape with alternating polarity with a gap of up to 2mm.

The period changes are available on the sensor output as standard square wave or sinusoidal signals.

The counting and processing of the signals is accomplished using the standard incremental or sine counter inputs on the processor.

Resolution down to 1um and an accuracy of 10um can be achieved.

The permissible traverse speed is up to 20m/s and the measured value is in fractions of a second, the controller receiving the position signal in real time.

Two series are currently available: the BMF SA1/SA1F and the S2B/S2E/S1C.

The BMF SA1/S1F series offers two metal-housed sensing heads for its high-resolution system.

Both detect reference points on the magnetic tape.

The S1A sensing head can also detect system limit switches and provides additional switching functions as a result.

The S1F sensing head features a compact design and is, therefore, easy to integrate into systems with restricted installation space, according to Balluff.

The S2B/S2E/S1C series offers three variations for adapting the system to any measurement task in combination with the three sensor heads.

An appropriate resolution and degree of accuracy can be selected in line with the application and reference points can be integrated.

All three have a compact design and the same dimensions through the series, making them extremely flexible to integrate.

To complement the system, various accessories are available, including counters, displays and sliding carriages.

The sliding carriage can be used wherever long paths have to be measured without any precise guidance by the machine, such as sheet-metal presses, cutting installations and material-handling technology.

For applications where the monitoring of rotary movements are required, Balluff also offer magnetic rings with high resolution.

Synchronous run monitoring is now simple to implement.

Balluff has over 50 years of sensor experience and is a leading global sensor specialist with its own line of connectivity products for every area of factory automation and industrial control.

Everyday, all over the world, Balluff sensors are increasing production throughput and product quality for thousands of satisfied users striving to improve their manufacturing processes and lower their costs. No matter what the application, Balluff has the practical experience, expertise, and product range to make that improvement. Products include:

  • inductive, photoelectric, magnetic field, ultrasonic, capacitive, vision sensors 
  • linear transducers, linear encoders systems 
  • distance  measurement and level sensors
  • industrial RFID 
  • power supplies
  • connectivity and bus systems.

Our manufacturing, sales, and service offices are located around the world. That means the excellent service we provide in England, Germany, or Brazil is the same as we offer in the United States, Japan, or India.

Fast delivery, global pricing, attention to detail and the ability to lower our customers’ costs, no matter where our customers are located. Although our programs are global, our customer relationships are local.

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