SNV Stamping Solutions is an emerging precision motor stamping manufacturer based in Bengaluru. We produce stator stampings, rotor stampings, assembled motor cores and CNC-turned rotor shafts using high-speed progressive die stamping on CRNO silicon steel.
Motor stamping is the process of cutting and forming thin sheets of electrical steel (typically CRNO silicon steel) into stator and rotor laminations using progressive dies on a stamping press. These laminations are then stacked together to form the magnetic core of an electric motor. The precision of the stamping process directly affects motor efficiency, noise levels and overall performance.
At SNV Stamping Solutions, we bring together a modern high-speed press line, servo-controlled feeding and in-die stacking to produce motor stampings that meet tight tolerances. Our team has deep experience in the automotive press shop environment, and we apply the same discipline to every motor stamping job we take on.
Our plant is equipped with dedicated machinery for high-volume motor lamination stamping. Every component in the line is chosen to deliver repeatable accuracy and fast throughput.
We supply a range of precision-stamped components for electric motors. Each product is manufactured on our high-speed press line using CRNO silicon steel grades suited to the application.
Stator laminations stamped from CRNO silicon steel with tight slot tolerances. Auto-stacked in-die with skewing for uniform magnetic properties. Grades from 50C1300 to 50C330 depending on motor efficiency class.
Rotor laminations with precise slot geometry for induction and BLDC motor designs. Stamped and stacked with separate cam-controlled stack heights. Burr kept within 0.02 mm to maintain air gap consistency.
Complete stator and rotor core stacks assembled from individual laminations. Stacking factor of 97-98%. We supply cores ready for winding or further assembly at your motor production line.
CNC-turned rotor shafts on our Ace Designers Super Jobber 500 LM lathe. Shafts are machined to your drawing specifications and pressed into rotor core assemblies on our hydraulic press.
We stamp a wide range of CRNO (Cold Rolled Non-Oriented) electrical steel grades. The grade selection depends on the motor's efficiency requirements, operating frequency and cost targets.
| Grade Range | Core Loss (W/kg at 1.5T, 50Hz) | Typical Applications |
|---|---|---|
| 50C1300 | Up to 13.0 | Standard efficiency motors, fans, small pumps |
| 50C800 – 50C600 | 6.0 – 8.0 | IE2/IE3 efficiency motors, home appliances |
| 50C470 – 50C330 | 3.3 – 4.7 | High-efficiency EV motors, industrial drives |
We handle material thickness from 0.2 mm to 1 mm. Strip width capacity up to 400 mm on our Yaskawa servo feeder. Our decoiler-straightener-feeder line ensures flat, stress-free feeding of CRNO coils into the die.
Our motor stampings and laminations go into electric motors used across a range of industries. We work with motor manufacturers, OEMs and tier-1 suppliers across India.
Quality is not optional in motor stamping. Even small deviations in burr height or stacking factor can affect motor performance, noise and efficiency. Here is what we deliver.
| Parameter | SNV Specification |
|---|---|
| Burr Height | Within 0.02 mm |
| Stacking Factor | 97 – 98% |
| Material Thickness Range | 0.2 mm to 1 mm |
| Strip Width Capacity | Up to 400 mm |
| Certification | ISO 9001:2015 |
| Die Maintenance | In-house die maintenance team |
| Die Change | Quick die change system |
SNV Stamping Solutions manufactures stator stampings (laminations), rotor stampings, assembled motor cores (stator and rotor stacks), and CNC-turned rotor shafts. We work with CRNO silicon steel grades from 50C1300 to 50C330 and handle strip widths up to 400 mm with material thickness from 0.2 mm to 1 mm.
We operate a Yadon 220T J76 high-speed press with a 1900 x 950 mm bed and 30 mm stroke, featuring a double-plunger design for consistent stamping force. The press line includes a Yaskawa servo feeder for precise strip feeding up to 400 mm width. We also have a 40T Paramount Hydraulics press for secondary pressing operations.
SNV is ISO 9001:2015 certified. Our motor stampings achieve burr height within 0.02 mm and a stacking factor of 97-98%. We use in-die auto stacking with auto skewing and separate cams for different stack heights. Our quick die change system reduces setup time between production runs.
SNV supplies motor stampings and laminations to multiple industries including home appliance motors (ceiling fans, mixer grinders, washing machines), automobile components, electric vehicle (EV) motors, industrial motor manufacturers, drone and defence motor applications, and irrigation pump motors.
SNV works with a wide range of CRNO (Cold Rolled Non-Oriented) silicon steel grades from 50C1300 to 50C330. These grades cover applications from standard efficiency motors to high-efficiency motors used in EVs and industrial drives. We handle material thickness from 0.2 mm to 1 mm depending on the motor design requirements.
Send us your motor stamping drawings and specifications. We will review your requirements and get back to you with a detailed quotation.
Request a QuotationCall: 9980668620 / 9980717774