Stepping solenoids have consistently high starting torque for their compact size. The key to their superior performance is the exclusive tooth clutch drive.

It has a positive action, self locking drive which contributes to a greater useable torque output. The drive also acts as a built in electro-mechanical clutch brake to eliminate the natural tendency of overdriving at the end of a step.

Stepping solenoids can be supplied with various output steps and are available in uni-directional or bi-directional configurations. The internal parts of the stepping solenoid are permanently lubricated and enclosed to protect from external environments, this makes our stepping solenoids maintenance-free, cost-effective products for your application.

Stepping solenoids can also be combined with a rotary wafer switch to provide complex remote switching solutions.

Stepping Solenoid

Features

  • Unique tooth clutch drive
  • Minimum life expectancy of 10 million steps
  • Single pulse operation

Options Available

  • 12, 18, 24 or 36 Position
  • Uni-Directional or Bi-Directional operation
  • Foot, flange or stud mountings available*

*Please note: where flange mounting is used for bi-directional models, consideration should be given to securing both sections of the solenoid if high inertia loads are to be positioned.

Typical Applications

  • Can Making Industry
  • Control Gear
  • Water / Medical Sampling
  • Ticketing Equipment
  • Food & Drink Processing
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Stepping Solenoid Technical

The performance tables show four columns of typical operating conditions for a given unit. The first two “normal speed, extended period of operation”, presume the stepping solenoids will be pulsed on a continuous basis (round the clock under normal ambient temperature of 20°C with no provision to cool the coil). Here the pulse ‘OFF’ interval is calculated to allow sufficient cooling time (between pulses) to prevent thermal damage.

Most applications, however, call for the stepping solenoid to operate on an intermittent basis, allowing time for the coil to cool while the stepping solenoid is not working. This permits a decrease of the pulse ‘OFF’ interval and a subsequent increase in stepping speed.

The performance information was developed from tests with friction loads, which represent the most severe condition because a constant torque throughout the stroke is required. An inertia load requires a high initial starting torque and a braking action at the end – a task that the Series 50-L Stepping Solenoid is designed to handle. In addition to the clutch brake, it has built-in compensation to reduce velocity toward the end of each step.

The detent torque values shown in the Specifications have already been taken into consideration in the performance tables. Detent torque need only be considered when there is a load against the shaft with no power applied.

Stepping Solenoid Performance Table

Need a custom solenoid solution?

Contact us with your requirements…

  • Dimensions of the space available for the solenoid.
  • Movement required – mm or degrees of rotation.
  • Force or torque required.
  • Voltage available & current limit of supply
  • Duty cycle – specify max. on time and min. off time for 1 cycle.
  • Temperature of working environment.

Email enquiries@nsfcontrols.co.uk or call +441535 661144

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