WT CNC Nema 23 57BYGH603B Stepper Motor 1A 287oz-in & 3 Driver Board 6560 Foam Laser for Mill Engraver Kit CE ISO ROSH

Item Code: 15889642 (0 beoordelingen 3 stuks verkocht ) 0
prijs: US $ 187.48 / stuk (Wholesale Price)
verzendkosten: $0.00 aan  Verenigde Staten van Amerika via China Post
kwantiteit:  (1000 stuk beschikbaar)   stocking Time: 7 dagen
totale prijs:
US $187.48
levertijd: 7-15 dagen
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Seller Information

changzhou_wantaimotor changzhou_wantaimotor

Since:2014-05-08

0.00% Positive Feedback

Item as Described:

 4.43

Price & Quality:

 4.43

Delivery & Charge:

 4.43

Service:

 4.43

    Item specifics
Holding Torque: 20.3kg.cm(287oz-in),
is_customized: Yes,
application: engraving, milling, curving, cutting machine,
Step Angle(degrees): 1.8degree,
Model Number: CNC Router Kit Nema 23(57 stepper motor), 57BYGH603,
Place of Origin: Jiangsu, China (Mainland),
a axis driver board: TB6560,
Type: Hybrid,
Certification: CE, ISO, ROHS,
Current / Phase: 1A,
Phase: 2,
    Product Description
is_customized: Yes Brand Name: wantai Model Number: CNC Router Kit Nema 23(57 stepper motor) Holding Torque: 20.3kg.cm(287oz-in) Type: Hybrid Phase: 2 Current / Phase: 1A Certification: CE,ISO,ROHS Step Angle(degrees): 1.8degree Model Number: 57BYGH603 application: engraving,milling,curving,cutting machine Place of Origin: Jiangsu, China (Mainland) a driver board: 6560

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Horrible Exception: org.springframework.transaction.CannotCreateTransactionException: Could not open JDBC Connection for transaction; nested exception is com.mysql.jdbc.exceptions.jdbc4.CommunicationsException: Communications link failure The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server. at org.springframework.jdbc.datasource.DataSourceTransactionManager.doBegin(DataSourceTransactionManager.java:238) at org.springframework.transaction.support.AbstractPlatformTransactionManager.getTransaction(AbstractPlatformTransactionManager.java:374) at org.springframework.transaction.interceptor.TransactionAspectSupport.createTransactionIfNecessary(TransactionAspectSupport.java:263) at org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:101) at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:171) at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:204) at com.sun.proxy.$Proxy37.getHotProducts(Unknown Source) at com.mic.escrow.buyer.modules.screens.product.Recommendations.doBuildTemplate(Recommendations.java:46) at org.apache.turbine.modules.screens.VelocityScreen.doBuildTemplate(VelocityScreen.java:79) at org.apache.turbine.modules.screens.TemplateScreen.doBuild(TemplateScreen.java:100) at org.apache.turbine.modules.Screen.build(Screen.java:57) at org.apache.turbine.modules.ScreenLoader.eval(ScreenLoader.java:107) at org.apache.turbine.modules.layouts.VelocityOnlyLayout.doBuild(VelocityOnlyLayout.java:93) at org.apache.turbine.modules.Layout.build(Layout.java:53) at org.apache.turbine.modules.LayoutLoader.exec(LayoutLoader.java:101) at org.apache.turbine.modules.pages.DefaultPage.doBuild(DefaultPage.java:146) at org.apache.turbine.modules.Page.build(Page.java:53) at org.apache.turbine.modules.PageLoader.exec(PageLoader.java:101) at org.apache.turbine.Turbine.doGet(Turbine.java:799) at javax.servlet.http.HttpServlet.service(HttpServlet.java:617) at javax.servlet.http.HttpServlet.service(HttpServlet.java:717) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191) at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:470) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127) at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102) at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109) at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:293) at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:859) at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:602) at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:489) at java.lang.Thread.run(Thread.java:662) Caused by: com.mysql.jdbc.exceptions.jdbc4.CommunicationsException: Communications link failure The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server. at sun.reflect.GeneratedConstructorAccessor67.newInstance(Unknown Source) at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:27) at java.lang.reflect.Constructor.newInstance(Constructor.java:513) at com.mysql.jdbc.Util.handleNewInstance(Util.java:409) at com.mysql.jdbc.SQLError.createCommunicationsException(SQLError.java:1118) at com.mysql.jdbc.MysqlIO.(MysqlIO.java:343) at com.mysql.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:2308) at com.mysql.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:2122) at com.mysql.jdbc.ConnectionImpl.(ConnectionImpl.java:774) at com.mysql.jdbc.JDBC4Connection.(JDBC4Connection.java:49) at sun.reflect.GeneratedConstructorAccessor37.newInstance(Unknown Source) at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:27) at java.lang.reflect.Constructor.newInstance(Constructor.java:513) at com.mysql.jdbc.Util.handleNewInstance(Util.java:409) at com.mysql.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:375) at com.mysql.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:289) at org.apache.commons.dbcp.DriverConnectionFactory.createConnection(DriverConnectionFactory.java:38) at org.apache.commons.dbcp.PoolableConnectionFactory.makeObject(PoolableConnectionFactory.java:294) at org.apache.commons.pool.impl.GenericObjectPool.borrowObject(GenericObjectPool.java:840) at org.apache.commons.dbcp.AbandonedObjectPool.borrowObject(AbandonedObjectPool.java:84) at org.apache.commons.dbcp.PoolingDataSource.getConnection(PoolingDataSource.java:96) at org.apache.commons.dbcp.BasicDataSource.getConnection(BasicDataSource.java:880) at org.springframework.jdbc.datasource.DataSourceTransactionManager.doBegin(DataSourceTransactionManager.java:200) ... 33 more Caused by: java.net.ConnectException: Connection refused at java.net.PlainSocketImpl.socketConnect(Native Method) at java.net.PlainSocketImpl.doConnect(PlainSocketImpl.java:351) at java.net.PlainSocketImpl.connectToAddress(PlainSocketImpl.java:213) at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:200) at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:366) at java.net.Socket.connect(Socket.java:529) at java.net.Socket.connect(Socket.java:478) at java.net.Socket.(Socket.java:375) at java.net.Socket.(Socket.java:218) at com.mysql.jdbc.StandardSocketFactory.connect(StandardSocketFactory.java:256) at com.mysql.jdbc.MysqlIO.(MysqlIO.java:292) ... 50 more

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