Import Auto Interlock Progressive Stool For Motor Core — Buy in wholesale FOB from Supplier in China

Shenzhen Jiarun Precision Science & Technology Co., Ltd. produces progressive stamping tooling for motor stator and rotor lamination under the trade term "Auto Interlock Progressive Stool". The die achieves a spare part tolerance of 0.002 mm, feeding length tolerance of 0.003-0.005 mm, and ground finish within R0.05-0.5. Stator and rotor lamination tolerance is held to 0.05 mm with concentricity within 0.05 mm. The tooling runs at 350-400 strokes per minute and handles product outer diameters from 3 mm to 1000 mm. Mould materials include tungsten steel, SKD11, SAP-60 and ASP-9.

The lamination stack is built using silicon steel sheet with automatic interlocking between layers. Skewing, shoulder hole features and rotation up to 180 degrees are available as forming options. Each sheet is joined by automatic welding rather than riveting or cleating. The surface receives a grinding process to maintain flatness and burr control. Die life ranges from 1 million to 5 million strokes per maintenance cycle, with total tool life of 100 million to 200 million strokes under normal production conditions. These figures are typical for precision motor lamination tooling in the Asian supply base.

The product serves manufacturers of fractional horsepower motors, industrial drive motors, automotive alternators and compressor motors. Buyers are typically motor OEMs, tier-one automotive suppliers and large appliance producers sourcing lamination tooling for in-house stator rotor production or for captive die shops. Key trade considerations include confirming the exact silicon steel grade and thickness, the lamination stack height per stroke, and whether the die is configured for single-row or multi-row progression. Packaging and Incoterms should be agreed directly with the supplier, as these are not stated in the source data.

Shenzhen Jiarun Precision Science & Technology Co., Ltd. is based in Shenzhen, Guangdong Province, China, with a postal address in the 518105 area. The company states it was established in 1997 and holds ISO9001:2008 certification issued by SGS. Its location is close to Shekou seaport, which provides access to South China sea freight corridors. The supplier's trust tier is classified as "harbor", and its response rate is recorded at 0.00 percent with an average response time of zero hours, indicating either a new listing or inactive inquiry channel. The profile does not disclose annual revenue, employee count, export percentage, or specific client names.

The company emphasises a professionally design team and cites more than 14 years of experience in precision stamping die manufacture. Its stated capabilities cover progressive die design, automatic lamination welding, and motor core tooling across a broad diameter range. The listing does not provide information on ODM/OEM terms, export licence status, or after-sales support structure. Buyers should verify current certification status, as ISO9001:2008 has been superseded by ISO9001:2015, and confirm whether the company maintains active production or is operating as a trading intermediary.