SMC具有固定節流孔和急速供氣機能的速度控制閥SSC（ASS）作用

在中泄式電磁閥驅動氣缸的回路中，當中泄閥處于中位時，氣缸活塞兩側都排空。當換向閥切換至左位時，因無桿腔很快充氣，有桿腔初始時為大氣壓力，故活塞桿會急速伸出傷人或損壞設備。若將無桿側的排氣節流式速度控制閥改裝成固定節流孔和有急速供氣機能的速度控制閥（SSC系列），則可避免上述活塞桿急速伸出事故。

SMC具有固定節流孔和急速供氣機能的速度控制閥SSC（ASS）結構原理

下圖是SMC具有固定節流孔和急速供氣機能的速度控制閥SSC（ASS）系列的結構原理圖。

SMC 具有固定節流孔和急速供氣機能的速度控制閥SSC（ASS）主要技術參數

參見SMC樣本。

SMC 具有固定節流孔和急速供氣機能的速度控制閥SSC（ASS）的使用注意

1）SSC閥應安裝在防止活塞桿急速伸出的供氣側，希望直接誒裝在氣缸上。若與氣缸用配管連接，一旦配管長，不僅速度控制變差，在正常動作時，其始動作時間也變長，甚至速度控制不起作用。
2）100mm以下短行程氣缸及擺動氣缸不要使用SSC閥。
3）負載率在50%以下使用SSC閥，以免正常動作時的速度控制不起作用。
4）排氣節流控制的SSC閥，防止活塞桿急速伸出的初始速度是不可調節的，若希望低于初期速度且可調，則應選用進氣節流控制的SSC閥（ASS110·310）。
5）缸內有殘壓的回路，使用進氣節流式的速度控制閥就能防止活塞桿急速伸出。

SMC速度控制閥AS系列型號列表

AS1000F-04	AS2201F-01-04S	AS2211FG-02-04S	AS3201F-03-06N	AS4201F-04-10SN
AS1000F-04-X260	AS2201F-01-04-S	AS2211FG-02-06	AS3201F-03-06S	AS4201F-04-10S-X242
AS1000F-04-X35	AS2201F-01-04SD	AS2211FG-02-06S	AS3201F-03-06SD	AS4201F-04-10S-X95
AS1000F-06	AS2201F-01-04SK	AS2211FG-02-08	AS3201F-03-06ST	AS4201F-04-10W
AS1000-M3	AS2201F-01-04SK-X264	AS2211FG-02-08S	AS3201F-03-07S	AS4201F-04-10W2
AS1000-M5	AS2201F-01-04ST	AS2211FG-02-10	AS3201F-03-08	AS4201F-04-11S
AS1000-M5-N	AS2201F-01-04S-X214	AS2211FG-02-10S	AS3201F-03-08N	AS4201F-04-12
AS1001F-01	AS2201F-01-04S-X26	AS2211FM-01-04	AS3201F-03-08S	AS4201F-04-12N
AS1001F-01K	AS2201F-01-06	AS2211FM-01-04S	AS3201F-03-08SD	AS4201F-04-12S
AS1001F-03	AS2201F-01-06K	AS2211FM-01-06	AS3201F-03-08SK	AS4201F-04-12SD
AS1001F-03K	AS2201F-01-06S	AS2211FM-01-06S	AS3201F-03-08SKN	AS4201F-04-12SK
AS1001F-04	AS2201F01-06S	AS2211FM-01-08	AS3201F-03-08SK-X264	AS4201F-04-12SN
AS1001F-04-3	AS2201F-01-06SD	AS2211FM-01-08S	AS3201F-03-08SN	AS4201F-04-12ST
AS1001F-04-3-X250	AS2201F-01-06SK	AS2211FM-01-23	AS3201F-03-08ST	AS4201F-04-12S-X214
AS1001F-04-5-X250	AS2201F-01-06SK-X264	AS2211FM-02-04S	AS3201F-03-08S-X214	AS4201F-04-12S-X95
AS1001F-04D	AS2201F-01-06SN-X36	AS2211FM-02-06	AS3201F-03-08S-X214A	AS4201F-04-12W2
AS1001F-04K	AS2201F-01-06ST	AS2211FM-02-06S	AS3201F-03-08S-X95	AS4201F-04-13S
AS1001F-04N	AS2201F-01-06S-X214	AS2211FM-02-08	AS3201F-03-08W2	AS4201F-04-13SK
AS1001F-04T	AS2201F-01-06S-X242	AS2211FM-02-08S	AS3201F-03-09W	AS4201FE-04-10SK
AS1001F-06	AS2201F-01-06S-X26	AS2211FM-02-10	AS3201F-03-10	AS4201FE-04-12SK
AS1001F-06-3	AS2201F-01-06S-X36	AS2211FM-02-10S	AS3201F-03-10K	AS4201FG-04-10
AS1001F-06-3-X214	AS2201F-01-06S-X95	AS2211F-N01-01S	AS3201F-03-10N	AS4201FG-04-10S
AS1001F-06D	AS2201F-01-06W2	AS2211F-N01-07S	AS3201F-03-10S	AS4201FG-04-12
AS1001F-06K	AS2201F-01-06-X36	AS2211F-N02-08S	AS3201F-03-10SD	AS4201FG-04-12S
AS1001F-06N	AS2201F-01-06-X95	AS2211FPG-01-06	AS3201F-03-10SK	AS4201F-N04-10
AS1001F-06-X36	AS2201F-01-07S	AS2211FPG-01-08	AS3201F-03-10SKN	AS4201FPG-04-10
AS1001F-07	AS2201F-01-08	AS2211FPG-02-06	AS3201F-03-10SK-X264	AS4201FPG-04-12
AS1001F-23	AS2201F-01-08S	AS2211FPG-02-08	AS3201F-03-10SN	AS4201F-U04-10
AS1001F-23-3	AS2201F-01-08-S	AS2211FPQ-01-04	AS3201F-03-10ST	AS4201F-U04-12
AS1001F-23K	AS2201F-01-08SD	AS2211FPQ-01-06	AS3201F-03-10S-X242	AS4201F-U04-12N
AS1001FG-01	AS2201F-01-08SK	AS2211FPQ-01-08	AS3201F-03-10S-X95	AS420-F04
AS1001FG-04	AS2201F-01-08SK-X264	AS2211FPQ-02-04	AS3201F-03-10W	AS420-N04
AS1001FG-06	AS2201F-01-08ST	AS2211FPQ-02-06	AS3201F-03-10W2	AS4210-04
AS1001FM-04	AS2201F-01-08S-X242	AS2211FPQ-02-08	AS3201F-03-11	AS4210-04-S
AS1001FM-06	AS2201F-01-08S-X95	AS2211F-U01-04	AS3201F-03-11S	AS4210F-04-12S
AS1001FM-07	AS2201F-01-08W2	AS2211F-U01-06	AS3201F-03-12	AS4211-04-F10S
AS1001FM-23	AS2201F-01-09S	AS2211F-U01-06K-X12	AS3201F-03-12N	AS4211-04-F10SK
AS1200F-M5-04-S	AS2201F-01-10	AS2211F-U01-07	AS3201F-03-12S	AS4211-04-F12S
AS1200F-M5-06S	AS2201F-01-10N	AS2211F-U01-08	AS3201F-03-12SD	AS4211-04-F12SK
AS1200-M3	AS2201F-01-10S	AS2211F-U02-04	AS3201F-03-12SK	AS4211F-04-10
AS1200-M5	AS2201F-01-10SD	AS2211F-U02-06	AS3201F-03-12SN	AS4211F-04-10N
AS1200-M5-M	AS2201F-01-10SK	AS2211F-U02-08	AS3201F-03-12S-X242	AS4211F-04-10S
AS1200M-M5	AS2201F-01-10S-X214	AS2211F-U02-10	AS3201F-03-12S-X95	AS4211F-04-10SD-X12
AS1200-U10/32	AS2201F-01-10S-X242	AS2211F-U02-11	AS3201F-03-12W2	AS4211F-04-10SK
AS1201F-32-03	AS2201F-01-10W	AS2301F-01-01	AS3201FE-03-06SK	AS4211F-04-12
AS1201F-32-04	AS2201F-01-10W2	AS2301F-01-04	AS3201FE-03-08SK	AS4211F-04-12S
AS1201FG-M5-04	AS2201F-01-23	AS2301F-01-04S	AS3201FE-03-10SK	AS4211F-04-12SK
AS1201FG-M5-06	AS2201F-01-23S	AS2301F-01-04SK	AS3201FE-03-12SK	AS4211F-04-12SN
AS1201F-M3-01	AS2201F-02-01S	AS2301F-01-04SK-X264	AS3201FG-02-08S	AS4211F-04-13
AS1201F-M3-02	AS2201F-02-04	AS2301F-01-04ST	AS3201FG-02-10S	AS4211F-04-13SK
AS1201F-M3-03	AS2201F-02-04S	AS2301F-01-06	AS3201FG-02-12S	AS4211FE-04-12SK
AS1201F-M3-04	AS2201F-02-04-S	AS2301F-01-06S	AS3201FG-03-06	AS4211FG-04-10
AS1201F-M3-04K	AS2201F-02-04S-X36	AS2301F-01-06SD	AS3201FG-03-06S	AS4211FG-04-10S
AS1201F-M3-23	AS2201F-02-06	AS2301F-01-06SK	AS3201FG-03-08	AS4211FG-04-12
AS1201F-M3-23-X214	AS2201F-02-06N	AS2301F-01-06SK-X264	AS3201FG-03-08S	AS4211FG-04-12S
AS1201F-M5-01	AS2201F-02-06S	AS2301F-01-06SN	AS3201FG-03-10	AS4211FPG-04-10
AS1201F-M5-02K	AS2201F-02-06-S	AS2301F-01-06ST	AS3201FG-03-10S	AS4211FPQ-04-10
AS1201F-M5-03	AS2201F-02-06SD	AS2301F-01-06S-X214	AS3201FG-03-12	AS4211FPQ-04-12
AS1201F-M5-04	AS2201F-02-06SK	AS2301F-01-06S-X242	AS3201FG-03-12S	AS4211F-U04-10
AS1201F-M5-04D	AS2201F-02-06SK-X264	AS2301F-01-06-X214	AS3201F-N02-07S	AS4211F-U04-12
AS1201F-M5-04K	AS2201F-02-06SN	AS2301F-01-07S	AS3201F-N03-07S	AS4301F-04-10
AS1201F-M5-04K-X264	AS2201F-02-06SN-X36	AS2301F-01-08	AS3201FPG-03-06	AS4301F-04-10S
AS1201F-M5-04T	AS2201F-02-06S-X26	AS2301F-01-08S	AS3201FPG-03-08	AS4301F-04-11S
AS1201F-M5-04-X26	AS2201F-02-06S-X273	AS2301F-01-08SD	AS3201FPG-03-10	AS4301F-04-12
AS1201F-M5-04-X260	AS2201F-02-06S-X36	AS2301F-01-08SK	AS3201FPG-03-12	AS4301F-04-12S
AS1201F-M5-04-X273	AS2201F-02-06W2	AS2301F-01-08ST	AS3201FPQ-03-08	AS4301FE-04-10SK
AS1201F-M5-05	AS2201F-02-07S	AS2301F-01-10SD	AS3201FPQ-03-10	AS4301FE-04-12SK
AS1201F-M5-06	AS2201F-02-08	AS2301F-01-23	AS3201FPQ-03-12	AS4301FG-04-12S
AS1201F-M5-06	AS2201F-02-08S	AS2301F-01-23S	AS3201F-U01-06	AS4301F-U04-10
AS1201F-M5-06D	AS2201F-02-08-S	AS2301F-02-04	AS3201F-U02-06	AS4301F-U04-12