We can produce motors with the frame size: 20. 28, 35, 39, 42, 57, 60, 85, 86, 90, 110, 130, also can carry our OEM projects according to the clients requirements. The products are extensively used in industry automatics, offices, lighting setup for stages and other automatic controlling systems. More information, please contact us freely. We can make accoding to your detailed requirements, products quality and delivery time can be assured. Product Feature small frame size and low noise,accurate control step angle, Product Specification/Models Our step motors transform impulse signals into angular or linear displacement for industrial automation, industrial manipulators, home appliances and office appliances applications Temperature rIse: 80 center degrees max. Ambient Temperature Range: Minus 20 DEG to 50DEG Insulation Resistance: 100 Megaohms min. 500VDC Dielectric Strength: 500V AC 1 Min. Specifications: 1) Product name: 57mm high torque hybrid stepping motor 2) Frame sizes: 57mm 3) Step angle: 1.8 or 0.9 4) Body length: 41mm, 51mm, 56mm, 67mm, 76mm, 115mm 5) Shaft style: single or double 6) Motor figure: square or round 7) Lead wires: 4 or 6 8) No. of phase: 2 or 3 we can make according to your special requirements,plaase contact us for more informations.