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Select SNMA Servo motors and complete drive packages matched to machine tool specifications: SLM spindle motors, SMF synchronous motors, SMF-Z hydraulic drives, and SLM-S1 units.
Select a drive category. Attach an equipment data sheet, nameplate photo, or engineering specification to obtain an accurate technical proposal.
Compact AC induction spindle servo motors Series SLM090 and SLM110 with 3.7–5.5 kW rated power are designed for high-speed milling, drilling, and engraving on CNC machine tools. The motors maintain rated torque across base speed and allow smooth field-weakening acceleration up to 12000 rpm.
Specify rated power (kW), base and maximum speed, feedback sensor type (encoder/resolver), and shaft keyway configuration.
Spindle servo motors SLM130 and SLM160 with 7.5–15 kW output power are engineered for main drives of CNC lathes and vertical machining centers. Optimized stator slot geometry minimizes low-speed torque ripple, enabling rigid tapping and precise spindle orientation for automatic tool changers.
Order data: mounting flange (B5/B35), winding voltage (380 V / 220 V), and forced cooling blower options.
High-torque servo motors SLM180 and SLM220 delivering 18.5–30 kW rated power and up to 190 N·m torque are built for heavy-duty roughing and finishing of high-strength alloys. Heavy-duty bearing assemblies withstand significant radial loads from timing belt transmissions.
Parameters: rated torque, overload rating (30 min), encoder cable length, and thermal sensor type (PTC/Pt100).
Spindle servo motors SLM260 providing 37–45 kW output and over 280 N·m torque power heavy gantry mills, horizontal boring mills, and vertical turning lathes. Vacuum pressure impregnated Class F insulation ensures long service life against high-frequency PWM switching transients.
Order data: foot/flange mounting B35, shaft taper/cylindrical diameter, and holding brake options.
Synchronous feed servo motors deliver high dynamic acceleration and backlash-free motion control for CNC axes X, Y, Z. Low rotor inertia combined with high-resolution 23-bit optical encoders achieves micron-level workpiece positioning repeatability.
Parameters: torque (1.5–25 N·m), flange frame (80/110/130 mm), and integrated 24 V holding brake.
Three-phase synchronous servo motors Series SMF equipped with NdFeB permanent magnets deliver high power density and superior efficiency. The series is widely utilized in industrial robotics, textile machinery, automated packaging lines, and printing converting systems.
Specify continuous torque (30–150 N·m), rated speed, feedback sensor type, and IP65 sealing requirements.
Specialized synchronous servo motors Series SMF-Z are tailored for energy-saving electro-hydraulic pump stations in injection molding machines and hydraulic presses. The motor withstands up to 3x peak torque overload during mold clamping and molten plastic injection stages.
Order data: torque rating (up to 380 N·m), hydraulic pump flange interface (Sumitomo/Eckerle), and IPM/SPM rotor magnet design.
Digital servo drives Series SLM-S1 provide high-precision closed-loop control of oil pressure and volumetric flow rate in servo-hydraulic units. Integrated hydraulic non-linearity compensation algorithms eliminate pressure overshoot and deliver energy savings up to 70%.
Specify power rating (7.5–75 kW), pressure transducer interface (0–10 V / 4–20 mA), and CANopen fieldbus support.
Rated and maximum operating speeds, continuous and peak torque, line voltage, mechanical mounting flange dimensions, and drive control communication protocol.
Nameplate motor code, serial number, required replacement assemblies: rotors, bearing housings, resolvers, encoders, PTC thermal sensors, or cooling blowers.
SNMA manufactures servo drives for machine tools and plastics processing machinery; SLM spindle series and SMF synchronous motors differ in excitation principles, rotor design, and feedback sensor types.
To select a replacement, copy the motor type, power rating in kilowatts, torque, and rated stator current from the metal nameplate. A series designation alone leaves shaft keyway, encoder interface, and mounting flange configurations open.
If the nameplate is painted over, provide clear photographs showing the shaft end and connector layout.
To size an SLM spindle motor for a machine tool retrofitting project, specify operating machining regimes: cutting speed range, maximum workpiece or cutter diameter, and material hardness.
These parameters determine continuous torque at base speed and available power in the field-weakening constant power zone. Accurate sizing prevents stator winding thermal overload during heavy roughing and maintains surface finish accuracy during high-speed finishing operations.
Dedicated SMF-Z servo motors are selected according to peak injection pressure and maximum flow displacement of the injection molding machine pump. 0x), and hydraulic pump mounting interfaces (Sumitomo, Eckerle, Rexroth).
Direct pump bell housing mounting guarantees precise shaft concentricity and significantly dampens hydraulic noise in the power pack.
Spindle and synchronous servo motors are configured with heavy-duty brushless resolvers or high-resolution optical multi-turn encoders. For harsh machine tool operating environments with cutting fluid and oil mist, brushless resolvers offer high vibration resistance.
For precision positioning feed axes, digital optical encoders provide absolute positioning without reference zero return sequences.
Digital servo drives Series SLM-S1 execute closed-loop pressure and velocity regulation. When specifying drives, indicate control communication interfaces: analog 0–10 V inputs, 4–20 mA current loops, or digital CANopen fieldbus channels.
The onboard processor auto-tunes control gains to hydraulic line dynamics, suppressing hydraulic pressure spikes during mold clamping transitions.
Spindle servo motors feature separate forced cooling blowers that maintain full thermal dissipation capacity even when the spindle is stationary or holding holding torque. Stator windings incorporate embedded PTC130 thermistors or bimetallic switches.
Connecting these thermal sensors to CNC safety interlocks prevents insulation degradation upon mechanical jamming.
Confirm complete supply configurations: complete servo motor assemblies with feedback sensors, shielded power and signal cable sets, or standalone SLM-S1 servo controllers. For each line item, verify full nameplate designations and mechanical flange mounting dimensions.
Application compatibility is verified during quotation; prices, lead times, and dispatch terms are established in the commercial proposal.
Select a motor category or submit operating parameters with your contact details. Motor capacity, flange dimensions, encoder protocol, and cable lengths are agreed in one enquiry.
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