1. Shaft length can be customized. Shaft can be round, threaded, hollow and etc.  
2. We produce stepper motor from nema11 to NEMA 34, and provide suitable drivers for all these motors for you.
3. Application field:3D printing machine,CNC xyz motion robotic arm parts,Automation systems,Inspection machine,CNC and laser machine, Special automated machine,automated glue and filling machine,automated assembly line,Packing automation,Electronic industry automated assembly line,Glue dispenser, 3D printer,Aerospace,Laboratory test,Scanning, indexing and positioning,Moving sensors,Automation,Factory conveyor,CNC router machine etc.