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Home > News > Knowledge > The SLM11 Series Safety Door Switch Adds Security to Machine Tool Equipment

The SLM11 Series Safety Door Switch Adds Security to Machine Tool Equipment

Nov. 05, 2025

In recent years, insufficient safety measures for machine tool protective doors have led to frequent accidents, seriously threatening personnel safety, equipment accuracy and production continuity. More and more companies have realized that the reliability of safety protection equipment is directly related to the company's accident responsibility determination and the continuation of production qualifications. The market demand for highly reliable and long-life industrial safety products is becoming increasingly urgent.

Case: Application of SLM11 Series Safety Door Switch in Machine Tool Equipment 

Project Background 

During machine tool operation, if a person accidentally touches or intentionally opens a protective door, they could be struck, crushed, or cut by high-speed rotating or moving components, potentially causing serious industrial accidents. Accidentally opening a protective door can cause cutting fluid to splash or debris to enter the machine tool, affecting machine accuracy or damaging components. If the machine shuts down or malfunctions due to the opening of a protective door during machining, this can directly impact machining accuracy and result in workpiece scrap. 

Project key Points 

Existing safety solutions lacked adequate protection, leading to industrial accidents and equipment damage. The original solution utilized imported safety interlocks, which presented complex designs, inconvenient installation, and high maintenance costs. 

Solution 

To address these pain points, ESPE offers a highly reliable and adaptable industrial safety solution with its SLM11 series two-contact safety door switch:

 SLM11 series safety door switch

With a locking force of up to 1300N, it effectively prevents unintended door opening and physically isolates the hazardous area. The key insertion direction can be adjusted by rotating the head, providing flexible and convenient installation that can accommodate various machine tool structures. IP67 protection level, can adapt to complex working environment.

Project Results 

Fundamentally eliminates safety incidents caused by door switch failure, significantly improving the safety of human-machine collaboration. It prevents unplanned downtime, improves production efficiency, extends equipment life, and reduces wear and tear. Complying with machinery safety standards helps companies comply with production regulations. 

Customer Reviews 

Previously used safety door switch failed to provide reliable protection against misoperation or sudden door openings. Failure could even cause entire production lines to halt, creating safety risks and management pressures for companies. The SLM11 series safety door switchs not only eliminate all types of accidents but also make installation and commissioning easier. They are not only reliable "guardians" for protective doors, but also a vital guarantee for safe production in companies.


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