External Cylindrical grinding, cylindrical grinding is mainly carried out on an external cylindrical grinding machine, which is used to grind the outer cylinder, outer cone and shoulder end surface of shaft-type workpieces. During grinding, the workpiece rotates at a low speed. If the workpiece reciprocates in the longitudinal direction at the same time and the single-stroke or double-stroke movement in the longitudinal direction moves the grinding wheel relative to the workpiece, it is called longitudinal grinding.
Cylindrical grinding is mainly carried out on an external cylindrical grinding machine, which is used to grind the outer cylinder, outer cone and shoulder end surface of shaft-type workpieces. During grinding, the workpiece rotates at a low speed. If the workpiece reciprocates in the longitudinal direction at the same time and the single-stroke or double-stroke movement in the longitudinal direction moves the grinding wheel relative to the workpiece, it is called longitudinal grinding. If the width of the grinding wheel is greater than the length of the surface to be ground, the workpiece does not move longitudinally during the grinding process, but the grinding wheel continuously feeds the workpiece continuously, called the plunge grinding method. The efficiency of the plunge-cut grinding method is generally higher than that of the longitudinal grinding method. If the grinding wheel is trimmed into a forming surface, the plunge grinding method can be used to process the formed outer surface.
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Features
Transparent plastic characters with Braille, illuminated halo and text
OMRON B3F-5000 switch
ABS base with a metal outer frame and surface
Complies with GB24477, Accessibility Standard for Lifts for Disabled Persons
HOT SALE BUTTONS:
Conformity
EN81-70
Voltage
24DCV (standard), 12DCV, 48DCV ±10%
Lighting Color
Red (standard), Blue, White, Orange, Yellow (optional)
Current
50mA
Switch Brand
Imported OMRON-5 Series
Pushing Force
2–3.5N
Life Span
Over one million cycles
Operating Temperature
-10°C ~ 50°C
IP Rating
IP64
Humidity
45%–90%
About Us
Why Choose Us?
Shanghai Sunny Elevator Co., Ltd. has been in business since 1992, offering over 27 years of expertise in designing and manufacturing opto-electro-mechanical products. We have been actively engaged in import and export operations since 2012, and we specialize in supplying elevator parts and complete systems to more than 80 countries worldwide. Our commitment to quality, innovation, and customer satisfaction makes us a trusted partner in the global elevator industry.
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Transparent Plastic Characters with Braille for Elevator Call Button (SN-PB210)
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Model No.: SN-PB210
Size: 35X35mm
Surface Thickness: 1 mm
Application: Elevator Components
Brand: SUNNY
Packaging: Carton Box
Standards: CE, ISO9001, CCC
Origin: Shanghai, China