SPS-2D 拉姆齊拉線開關的鋼絲繩一端固定在一個固定的吊環上，另一端固定在開關臂桿上，鋼絲繩應每三粘一個支撐，端部固定在拉線開關臂桿的孔上，開關到固定端的距離通常不超過30米，兩開關之間的距離通常不超過60米，向上向下或拉動的力促使臂桿轉動到了警位置，觸動微動開關并鎖定直到人工手動復位。 

標準拉線開關防護等級為NEMA4適應于室內或室外安裝。FM認證用于二級1類E, F和G組的開關。表面經特殊處理可用于鹽性、堿性或酸性區域。對于腐蝕特別嚴重的區域表面采用無電鍍鎳處理。

設備描述 

　拉線開關是雙向觸動的，既可安裝在輸送機中間位置，也可安裝在其兩端 

　通用的安裝設計使拉線開關即可安裝中輸送機縱梁頂部也可安裝在其兩側 

　堅固的鑄鋁外殼，防護等級為NEMA 4，特殊的環境可選擇特殊的表面處理 

　整體式蓋板使得接線及開關調整方便簡單，而不用拆卸開關 

　結構件設計緊湊 

　醒目的黑色臂桿初托黃色或銀色殼體，易于辨別報警或正常狀態 

　提供完整的附件，包括鋼絲繩、繩夾及拉線支撐螺栓 

　手動杠桿復位 

　FM認證用于二類區域，增加隔離罩后可用于一類區域 

　可選紅色小旗用于報警指示

應用范圍 

　常規皮帶輸送機 

　梭式輸送機 

　裙邊式給料輸送機 

　斗式提升機 

　包裝生產線 

　堆料/取料系統，起重機，挖掘機 

　輪船裝卸系統 

　水平給料機

 xuzhou Ramsey 皮帶機拉繩開關

xuzhou ramsey offers a variety of components for monitoring conveyors and other bulk material handling equipment, including the Ramsey Pro-Line Safety Cable Pull Switch. These devices monitor operating processes for potentially hazardous conditions and activate an alarm when they occur. This helps to keep your personnel safe, your equipment from being damaged, your time from being wasted, and your profits from becoming losses.

For Emergency or Normal Shut-Off

A safety pull cable is attached to the actuating arm of the Ramsey Safety Cable Pull Switch and terminated at fixed mounts at either end of a conveyor. Force applied to the pull cable at any position causes the actuating arm to move into a tripped-locked position and activates an alarm from one DPDT or two SPDT micro-switches, alerting equipment circuits of the stop condition. This will stay locked until manually reset by the reset lever.

Options

Universal mounting plate

Secondary flag alarm

Complete hook-up accessories including: cable, clamps, standoffs, lights

NEMA 4 and NEMA 9 Alarm Light

Special finishes for highly corrosive conditions   

European tension spring-loaded mounting hardware