Mechanical Cam Switches
Mechanical Cam Switches

Precision switching with unmatched durability

Single and multiple position cam switches are used as actuators for automatic controls, for positioning, end-of-travel, transfer lines, transport equipment, and in machine and equipment building. Balluff single and multiple position switches have been proven for decades under harsh conditions. They ensure trouble-free function under conditions of vibration, shock, rapid temperature fluctuations, aggressive coolants, and heavy presence of chips.

Highly elastic, wear-free membrane made of Viton is used for hermetic sealing between the plunger mechanism and switch chamber. This dual chamber design ensures an IP 67 rating. Snap and creep switch elements are available as changeover contacts with self-cleaning effect. A variety of switch elements can be used.

Mechanical switches consist of two primary components. First a rugged single or multiple position switch assembly with a wide variety of switch elements. Secondly linear or rotary cams and associated cam trays or drums.

Three actuation and switching systems are available to choose from:

  • Mechanical/mechanical - A mechanical cam trips a mechanical plunger, which actuates an electro-mechanical switch element through a sealed membrane.
  • Mechanical/electronic - A mechanical cam trips a mechanical plunger. The metallic plunger is sensed internally by an inductive sensor and the output signal is switched electronically.
  • Inductive/electronic - Metallic cam is sensed by an inductive sensor element, which changes state electronically to activate the output signal. Noncontact operation for wear-free service in areas without metallic chips.

Benefits

  • Reliable and robust, even in harsh environments
  • Maintenance-free, self-lubricating plunger guide
  • Viton® seals
  • Multiple housing styles
  • Wide variety of plunger styles
  • Standard and safety switches
  • LED function indicators
  • IO-Link versions

Product families

  • Mechanical single position limit switches

    Switch with robust housing for extreme applications

    In mechanical single position limit switches without positive opening, a telescoping plunger executes the switching process. With its help, a mechanical switching element is connected in a separate, sealed chamber. The optimal choice of the plunger shape in combination with our cams is decisive in individual cases. This guarantees a long service life for your application.

    Features

    • Long service life
    • Robust housing for extreme applications
    • Three model series
    • Optional: Function indicator
    • Two-chamber system with IP67 degree of protection: Wear-free membrane with hermetic separation of the plunger mechanism and the switch interior
    • Maintenance-free, self-lubricating ram guide with plain bearing bush
    Single position limit switches
  • Mechanical multiple position limit switches

    Switch with robust housing for extreme applications

    In mechanical multiple position limit switches without positive opening, a telescoping plunger executes the switching process. With its help, a mechanical switching element is connected in a separate, sealed chamber. The optimal choice of the plunger shape in combination with our cams is decisive in individual cases. This guarantees a long service life for your application.

    Features

    • Long service life
    • Robust housing for extreme applications
    • IO-Link adaptable
    • Six model series
    • Up to 16 interfaces, depending on the model series
    • Function indicator optional
    • Two-chamber system with IP67 degree of protection: wear-free membrane with hermetic separation of the plunger mechanism and the switch interior
    • Maintenance-free, self-lubricating ram guide with plain bearing bush
    Multiple position switches
  • Mechanical single position limit switches with safety switch positions

    Reliable forcible opening, even with welded contacts

    Do you value reliable switching even with welded contacts? Then equip your safety functions such as emergency stops or limit stops with Balluff safety switches. Their switching process is triggered by a rigid plunger that actuates a mechanical switching element with forcible opening. If this plunger moves, it breaks the contact. Balluff safety switches are your reliable, safe choice.

    Features

    • Also suitable for welded contacts
    • Safety functions in accordance with DIN EN 60204-1/VDE 0113 and DIN EN 60947-5-1
    Single position limit switches with safety switch positions
  • Mechanical multiple position limit switches with safety switch positions

    Reliable forcible opening, even with welded contacts

    Do you value reliable switching even with welded contacts? Then equip your safety functions such as emergency stops or limit stops with Balluff safety switches. Their switching process is triggered by a rigid plunger that actuates a mechanical switching element with forcible opening. If this plunger moves, it breaks the contact. The number of safety switch positions in a single multiple position switch is arbitrary and can also be combined with standard switching elements. Balluff safety switches are your reliable, safe choice.

    Features

    • Also suitable for welded contacts
    • Safety functions in accordance with DIN EN 60204-1/VDE 0113 and DIN EN 60947-5-1
    • Four model series
    • Up to 16 switch positions, depending on the model series
    • A freely selectable number of safety switch positions in one multiple position switch
    • Safety switch positions can be combined with standard switching elements
    Multiple position limit switches with safety switch positions
  • Mechanical single position limit switches with positive opening

    Secured switching, even with welded contacts

    With mechanical single position limit switches in smaller configurations, safety switching elements are not feasible. In contrast, solutions with positive opening already exist. In these, the switching process is triggered by a rigid plunger that actuates a mechanical switching element with forcible opening. However, should this plunger move, it breaks the contact. This means that you have reliable control of switching processes, even with welded contacts.

    Features

    • Also suitable for welded contacts
    • Two model series
    • Two-chamber system with IP67 degree of protection: Wear-free membrane with hermetic separation of the plunger mechanism and the switch interior
    • Maintenance-free, self-lubricating ram guide with plain bearing bush
    • Rigid plunger
    Single position limit switches with positive opening
  • Mechanical multiple position limit switches with positive opening

    Secured switching, even with welded contacts

    With mechanical multiple position limit switches in smaller configurations, safety switching elements are not feasible. In contrast, solutions with positive opening already exist. In these, the switching process is triggered by a rigid plunger that actuates a mechanical switching element with forcible opening. However, should this plunger move, it breaks the contact. This means that you have reliable control of switching processes, even with welded contacts.

    Features

    • Also suitable for welded contacts
    • Two model series
    • Up to 12 switch positions, depending on the model series
    • Freely selectable number of switch positions with positive opening
    • Two-chamber system with IP67 degree of protection: Wear-free membrane with hermetic separation of the plunger mechanism and the switch interior
    • Maintenance-free, self-lubricating ram guide with plain bearing bush
    • Rigid plunger
    Multiple position limit switches with positive opening
  • Inductive single position limit switches

    Non-contacting and, therefore, free from wear during operation

    Our inductive single position limit switches combine the advantages of an inductive sensor with those of our mechanical housing-based line of products. The advantages received include their robust housings and a reliable inductive switching element for the switching function. As a result, you benefit from compact configurations and high switching distances. This enables non-contacting and, therefore, wear-free operation. Since the switching elements are equipped with LEDs, you can immediately recognize each switching function on the housing cover.

    Features

    • Reliable inductive active principle
    • Function indicator with LEDs
    • Compact configuration
    • Mechanical housing normed to the fixing mass can be used
    • Long switching distance
    • Non-contacting and thus free from wear
    • IP67 degree of protection: Resistant to aggressive cooling lubricants
    Single position limit switches inductive
  • Inductive multiple position limit switches

    Work in close proximity, without making contact

    Our inductive multiple position limit switches combine the advantages of an inductive sensor with those of our mechanical housing-based line of products. The advantages received include their robust housings and a reliable inductive switching element for the switching function. As a result, you benefit from compact configurations and high switching distances. This enables non-contacting and, therefore, wear-free operation.

    The coordinated transmission frequencies of the inductive switching elements allow for a tight sequential arrangement. Since the switching elements are equipped with LEDs, you can immediately recognize each switching function on the housing cover.

    Features

    • Reliable inductive active principle LED function indicator for each switch position
    • Compact configuration
    • Mechanical housing normed to the fixing mass is useable
    • Long switching distance
    • Non-contacting, and so free from wear
    • Tight sequential arrangement possible by coordinated transmission of switching frequencies
    • IP67 degree of protection: resistant to aggressive cooling lubricants
    Multiple position limit switches inductive
  • Mechanical multiple position limit switches with interchangeable plunger unit

    Interchangeable unit for efficient plunger replacement

    Our mechanical multiple position limit switch with interchangeable plunger unit are available for standard applications. Safety switch options are also available for increased requirements. With them, the entire switch does not have to be removed to replace individual plungers. Simply loosen two screws to remove the plunger unit. This efficiency saves you time and money.

    Features

    • Short service times thanks to simple assembly of the interchangeable unit
    • Fast exchange of individual plunger or the entire unit directly on the machine
    • Low repair costs
    • No wiring errors
    • Available with up to 6 switch positions, depending on the model series
    • Two model series
    Multiple position limit switches with interchangeable plunger unit
  • Mechanical single position limit switches for extended temperature range

    Stay cool in temperatures up to 180°C

    Equipped with a special switching element and a sophisticated plunger design, the mechanical position limit switches are perfect for extended temperature ranges. They are suitable for operating temperatures of up to 180°C. Ideal for harsh environments in mold making in the plastics industries, steel, and iron works.

    Features

    • Reliable switching behavior
    • Temperature range of -5°C to 180°C
    • Available with high-temperature cable
    • Two model series
    Single position limit switches for extended temperature range
  • Mechanical multiple position limit switches for extended temperature range

    Stay cool in temperatures up to 180°C

    A special switching element and a sophisticated plunger design characterize our mechanical position limit switches for extended temperature ranges. They are suitable for operating temperatures of up to 180 °C. Ideal for harsh environments in mold making in the plastics and steel industries.

    Features

    • Reliable switching behavior
    • Temperature range of -5°C to 180°C
    • Available with high-temperature cable
    • Up to twelve switch positions
    • Four model series
    Multiple position limit switches for extended temperature range