Spares For The Limits Switches – SDVLM

SDVLM switches—a model of mini limit switch manufactured by Super Engineering Works (Surdhi)—spare parts are available to maintain the core switching functionality and customize the mechanical interface

• 30 mm Long Lever: This is a common replacement part for the actuator arm.
• Adjustable Lever: A spare lever with an adjustable length for different applications.
• Basic Element: The core switching component, which can be replaced without changing the operating characteristics of the entire switch. 

• Top Push Roller (CODE: SDVLM-TPR): Features a 12.5 mm metal roller for linear, vertical activation.
• Adjustable Roller Lever (CODE: SDVLM-A): Allows the roller arm length to be set anywhere from 25 mm to 80 mm, providing flexibility for varying cam distances.
• Top Spring Operated (CODE: SDVLM-SSTS): Often referred to as a "cat's whisker" actuator, this flexible spring can be triggered from any direction (360°), making it ideal for non-linear movement detection.
• 30 mm Long Lever (CODE: SDVLM-1): Comes with an 18 mm diameter metal roller for applications requiring a fixed, extended reach.

• Contact Blocks: These are designed for snap-action operation and without affecting the overall switch characteristics. They use special silver alloy contacts rated at 10 Amps to maintain reliability at low voltages.
• Protective Covers: Transparent covers are available as a spare to prevent dust from settling on the internal contacts while still allowing for visual inspection.
• Housing Spares: The switches use an aluminum pressure die-cast enclosure with an M20 x 1.5 mm cable entry; replacement seals and cable glands are common maintenance items to preserve the oil-tight rating.