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Safety Switches for Belt Conveyors
Safety Switches for Belt Conveyors
Safety devices like Pull Cord switch, Belt Sway Switch and Electronic Speed Monitor are used to protect the conveyer belt in case of an emergency.
Pull Cord Switch: It is a rope-operated emergency switch provided with an operating handle fitted with spring steel rings at both ends for fixing the rope. The switch is mounted on the walkway side of conveyer belt, preferably at about every 20 metres length. The rope is tied to the end rings of the handle. When the rope is pulled from any side, the switch is operated. The switch stays in the operated condition till it is manually brought to normal position.
Belt-Sway Switch: This switch allows smooth running of the conveyor and protects it from damages due to over swaying caused by uneven loading of material, worn out idler roller bearings, etc. The belt sway switch is generally mounted on both sides and near the edge of conveyor belt. A small gap is provided between the contact roller and the belt edge to allow normal running of the belt with acceptable tolerance. When swaying exceeds normal limit, the belt edge pushes the contact roller, which drives the switch and operates the contacts. The switch resets automatically when the belt resumes normal running. The switch is housed in dust and weatherproof cast aluminium enclosure having IP55/IP65 grade of protection.
Electronic Speed Switch Monitor: This switch is used to monitor the speed of conveyors, crushers, rolling mills, agitators, mixers, stirrers, screw conveyors and other industrial machinery. The device actuates relay contacts at a preset speed. Using these contacts, desired control action such as zero speed protection/under speed protection/over speed protection can be achieved. Potentiometric speed setting facility is provided.
Damaged-Belt Detector: It gives early warning of belt damage. Available in rope type or infrared type.
Safety Switches for Belt Conveyors
Safety Switches
Switches
Industrial Safety Switches
Safety switches
Standard model of belt sway withjunction box
Rope type damaged belt detector
Belt breakage detector
Hooks with pull cord
Mounting bracket for pull cord switch
Tying clips for pull cord switch
Std cast al enclosure belt belt sway s w
Dust weatherproof enclosuresway s w
Sway s w
Field s w
Emergency s w
Stop s w Emergency stop s w
Conveyor safety s w
Epoxy painted enclosure s w
Manual reset type pull cord s w
Safety s w used for dusty enviroment
Retaining type stainless steel screw pull cord s w
Better protective against dust dirt s w
S w used in corrosive environment
Ip 65 belt sway s w
Tubular silicon gasket sway s w
Auto reset type sway s w
S w with mounting bracket
Sway s w used in hazardous area
Light gray colored belt sway s w
Speed monitor of conveyor
Electronic speed s w
Under speed monitoring s w
Speed s w with digital display
Din rail mounting undr speed monitor
Cast al enclosure speed monitor
Under speed flameproof enclosure speed monitor
Direct coupling with conveyor
Panl mounting type ip 30 speed monitor
Flag assembly provided with speed monitor s w
Specially designed speed moniotors for conveyor
Potentioometric setting speed monitor
Thumb-wheel setting type speed monitor
Panel management trip indicator
Indicator used for conveyor safety
Limit s w used in eoc cranes
Toggle action v level type heavy duty s w
Limit s w used for transfer of cars
Limit s w used in steel plant With junction box heavy duty s w
Contact type speed moniotor
Detector of torning of belt edges of conveyor
Detector for cutting of conveyor belt
Detector for belt running without material
Detector for loading on the belt
Auto manual control station for conveyor
Timer used for controlling on-off time of solenoid valve
Handy calibrators Anticollision switch for conveyor
Safety devices
Protective devices
Safety light curtains Pull cord wire
Anti collision s w
Accessories for safety switches
Safety switches used in paper plant
Safety switches used for thermal power plant
Belt weighers
Belt breakage detector switch
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