CAPACITIVE PROXIMITY SENSORS:
Proxistor is a specialist manufacturer of capacitive switches & sensors.
Proxistor capacitives produce an electric field with which they detect electrically conducting or non-conducting materials, solids particles or liquids, without making contact. Target detection is not affected by colour. Almost all Proxistor capacitives feature adjustable sensitivity allowing them to be set-up to differentiate between materials or compensate for varying mounting conditions.
Typical Applications -
- Non invasive contents detection through non metallic containers.
- Level detection of solids, granules, powders or liquids
- e.g. for filling applications, hopper loaders, silos, tubes, pipes, confectionery, foodstuffs, or inks.
- Plastic materials level detection for loading systems
- Detection of granules, powders, regrind and particulate, through non metallic containers, in filling, hoppers & tubes.
- Moisture content, wet spot detection.
- Bottle counting with or without contents detection,
- Packaging counting.
- Band loop control, breakage indication.
- Use as non contact switches.
We want to solve your sensing problems and will consider "specials" if our standard sensors do not provide a solution.
Standard capacitives are listed in our Web Catalogue.
INDUCTIVE PROXIMITY SENSORS:
Proxistor offers a complete range of inductive proximity switches.
Inductive Proxistors detect the presence of ferrous or non-ferrous metals without making contact and offer metal sensing unaffected by dirt, oil humidity & dust. This makes them particularly suitable for use in both the machine tool and general manufacturing environments where they are present in great volume and variety.
Building a new machine?
We can help, talk to us as early as possible.
Running machines?
We can help reduce machine downtime.
Many inductive proximity switches comply with the same IEC standards.
- In practice they can often be interchangeable, especially in an emergency. We can probably supply replacements for your machinery from stock. For example we list twenty one (21) varieties of M12 pnp normally open inductives. We cannot claim all will be in stock when you telephone! but we will get your machinery running with one or another of them.
- We may have a stocking reseller near you. If not, we ship daily with UPS or TNT or Federal Express or Securicor etc. We can get parts to you quickly wherever you are.
Plan ahead to reduce downtime:
You know one switch or another on your machines will fail at some point in the future. You cannot hold replacements for all of them.
To find out if Proxistor offers equivalents to your switches (inductive, capacitive, photoelectric or ultrasonic) email us the part numbers and manufacturer names (to use our web form click here, contacts page click here).
Take a look at our handy battery powered proximity switch testers:
With these you can discover:
- if your proximity switch or just the cable has been damaged?
- if the proximity switch or power supply is faulty?
- what electrical type the switch you want to replace is?.
Inductive proximity switches typical applications:
- Use on conveyor systems for counting and control.
- Detection and counting of small parts.
- Camshaft sensing.
- RPM. rotational direction and position sensing.
- Can, tin or keg detection.
- Tool and workpiece detection and positioning.
- Motion control e.g. air or hydraulic cylinders, valve position, processing steps or feed control.
Standard inductives are listed in our Web Catalogue.
PHOTOELECTRIC PROXIMITY SENSORS:
Proxistor offers photoelectric switches using visible and infrared light sources in diffuse, retro-reflective and through-beam configurations.
Photoelectrics offer sensing solutions for a wide range of targets.
Each sensing method (diffuse, retro-reflective and through-beam) incorporate a light emitter and a receiver. In all but through beam types, the emitter and receiver are housed in a single sensor unit.
Using diffuse reflective types, target detection is caused by light reflection from the target itself.
For retro-reflective and through-beam types the target must cut the light beam to activate the sensor.
Typical Applications -
- Counting and monitoring over longer distances e.g. conveyor, packaging and handling systems. Bottling and canning plants.
- Food making.
- Sorting by height detection.
- Controlling doors, gates and corridors.
- WITH FIBRES ; Counting, checking and sorting of small objects.
- Controlling and monitoring assembly operations, In areas with low/high temperatures or in the vicinity of very strong electromagnetic fields.
Standard photoelectrics are listed in our Web Catalogue.