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Ultra Long Life, General Purpose compact Limit Switch 1LS-J700 Series
3X longer life than standard type in actual site operation environment!
Components with improved abrasion, corrosion and sealing resistance, achieving 3 times longer operating life than previously.
 
The operating life of a limit switch in actual site orerating environments is substantially different to that in the manufacturer's laboratory.
At Yamatake, we have analyzed products returned from actual usage, and repeated actions taken and our testing.
Additionally, we carry out accelerated testing, and confirm the effectiveness of our measures.
As a result, we have achieved an "actual usage" operating life of three times longer than our previous products.
 
Problem
By analyzing problems occurring in actual site applications...
Measures
Improve both abrasion and sealing resistance of components!
Measures 1
Measures to remedy faulty actuator return
• Improve smoothness, with resistance to
  abrasion and corrosion for moving parts.
  (SUS nitride processing, special coatings)

• Improve grease quality and quantities.
 
Measures 3
Measures to remedy internal seals
• Improve internal shaft seals
• Stop connecting terminals by opening the
   cover, and  utilize connectors.
 
Evalution
Measures 2
Measures to remedy internal switches
• Use dual leaf springs for movable spring mechanisms
 
 
 
Measures 4
Measures to remedy configuration
• Display suitable O.T (movement after    operation), and use fluorescent paint    through a slit.
   
3X longer life than standard type in actual site operating environments!
 
 
Testing Results
Operating conditions : Rotational cam operating life test
                                Operating frequency 120 / min
                                Movement after stroke free positioning operation (O.T.)
                                70-100% of standard
Items tested            : 10
Testing results         : Stoppage after 3 million operations.
 
Catalog listings
 
 
Replacement list
The following parts can be used as replacements to enable ultra long-life operation without changes in operating characteristics

Standard type 1LS-J700 series
1LS-J type
1LS-J700
1LS19-J type
1LS-J710
1LS-J500 type
1LS-J720
1LS-J550 type
1LS-J730
 
Each catalog listing also has options with both LED, and double seals + LED available.
Connector type and pre-leaded connector type are also available.

Types with LED lamps have EC after their catalog listings
Types with double seals have SEC after their catalog listings
Types with connector and LED have EC-PD after their catalog listings
Types with pre-leaded connector and LED have EC-PD03 after their catalog listings
 
Please make an inquiry to request documentations for the ultra long life limit switchs 1LS-J700 series.
 
 
 
 
 

Address: 3323 Kifer Rd.; Santa Clara, CA; 95051 Phone: 1-866-SENSOR1 Fax: 1-602-216-8211
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