Copley Controls擴展了其直接驅動ServoTube直線驅動器產品線，增加了高度緊湊機型STA11，該新型超小驅動器保持了ServoTube的超強動力，加速度和帶寬，最重要的是可以安裝在28 mm的centers上用于多驅動創新。STA11的內置固態位置檢測器具有±12-?m的重復性，無需使用傳統外部編碼器，簡化了驅動器安裝，根本上為新型多執行器設計鋪平了道路。備注：十個驅動器集合尺寸小于12英寸。 數百萬次可靠運行周期 新型直線驅動器的內在的簡單特性和耐用性使其達到數百萬次無故障運行周期，這是當今創新的機械所要求的。（滾珠絲杠裝置和皮帶傳動裝置的使用壽命低于一個數量級）。現代自動化操作的標志是高速前進和后退周期為每分鐘上百次。STA11驅動器旋轉-直線轉換硬件無摩擦，無磨損，無慣性，符合此種應用的嚴格帶寬要求。 據芝加哥領先的系統集成商John Odenthal表示：如果沒有Copley公司新型直線驅動器的重要特性，自動化的先進性就被阻礙 了。他表示STA11小巧，可靠和動態性能是自動化持續動力的關鍵因素。 STA11提供了14到232 mm的沖程，最大驅動力為92N，速度為4.7 m/s，將增加設備負荷到25g。集成的固態位置感測器提供8微米的重復性，1V峰－峰sin/cos輸出，活塞桿直徑為11 mm，活塞寬26 mm，高61 mm。額定操作電壓75V，STA11具有foodsafe的特性，符合IP67下沖技術規范。 直接電磁驅動 新型驅動器的負載位置活塞桿直接由永磁和電磁場間的交互作用驅動，不插入齒輪傳動鏈，滾珠絲杠或靈活偶合增加慣性和削弱慣性。STA11的永磁密封在不銹鋼活塞桿中，該驅動器的電力推動驅動器線圈被壓縮，并用螺釘固定在螺栓壓入器中。 內在耐用性 壓入器內置長壽命的無潤滑軸承，帶動活塞桿旋轉，該組件與正規氣壓驅動器和電子驅動器具有相同的波形因數，并符合國際機械標準。 功能強大的控制器 通過匹配驅動器和Copley公司的Accelnet數字控制器簡化了系統集成。Accelnet數字控制器 提供功能強大的多執行器卓越控制選擇。網絡選擇包括CANopen, Ethercat, Macro以及DeviceNet。 original text： [COLOR=#708090]Miniature Linear Actuator Delivers Millions of Dependable Cycles Copley Controls broadens its line of direct drive ServoTube linear actuators with the highly compact Model STA11. The new ultra-slim actuator maintains ServoTube’s superior force, acceleration and bandwidth, and most significantly, enables mounting on 28 mm centers for multi-actuator innovations. STA11’s built-in solid-state position sensor provides ±12 microns repeatability, eliminating the traditional external encoder and simplifying actuator installation. Freed from external encoder cost and complexity, STA11 paves the way for radically new multi-actuator designs. Note: A ten-actuator assembly is less than 12 inches wide! Million Of Operations The new linear actuator’s intrinsic simplicity and ruggedness enable it to perform the millions of trouble-free operating cycles required by today’s innovative mechanisms. （Ballscrew and belt drive longevity falls an order-of-magnitude short）. Modern automation is typified by high speed forward-and-retract cycles, occurring hundreds of times per minute. Free from the friction, wear and inertia of rotary-to-linear conversion hardware, STA11 actuators meet the rigorous bandwidth demands of such applications. According to John Odenthal, a leading Chicago system integrator, automation’s advances would be stymied, but for the critical features introduced by Copley’s new linear actuator. He says Model STA11’s mini form factor, dependability, and dynamic performance, are keys to automation’s continuing momentum. Model STA11 provides 14-to-232 mm stroke. Peak force is 92N, velocity to 4.7 m/s, and the actuator will accelerate instrumentation-type loads to 25g. An integral solid-state position sensor provides 8 microns repeatability and develops 1V peak-peak sin/cos output. Thrust Rod diameter is 11 mm. Forcer width and height are 26 mm and 61 mm, respectively. The actuator is rated for 75V operation. STA11 is foodsafe and meets IP 67washdown specifications. Direct Electromagnetic Drive The new actuator’s load-positioning thrust rod is driven directly by the interaction between its permanent magnet and electrically energized magnetic fields. There are no intervening gear trains, ballscrews, or flexible couplings to add inertia and undermine responsiveness. ServoTube 11’s permanent magnets are sealed into the stainless steel Thrust Rod. The actuator’s electrically powered drive coils are encapsulated into the Forcer, which is bolted to the machine frame. Inherently Rugged Long life lubrication free bearings, built into the Forcer, support Thrust Rod travel. The unit has the same form-factor as regular pneumatic and electric actuators and conforms to international mechanical standards. Powerful Controller System integration is simplified by matching the actuators with Copley’s Accelnet digital controllers. Accelnet controllers provide powerful stand-alone and multi-actuator control choices. Networking options include CANopen, Ethercat, Macro and DeviceNet.[/COLOR]