Import Cnc Water Cooled Spring End Grinder — Buy in Bulk from Supplier in China

The Cnc water cooled spring end grinder from Wintime Machinery Co., Ltd. is a precision industrial machine designed for automated grinding of spring ends with tight dimensional tolerances. It features a CNC control system that enables repeatable positioning accuracy within ±0.02 mm, and a closed-loop water cooling circuit that maintains spindle temperature below 40°C during continuous operation. The machine accommodates spring wire diameters from 0.5 mm to 5.0 mm and handles helical, conical, and multi-segment springs common in automotive and medical device applications.

The grinding wheel is mounted on a high-torque spindle with variable speed control up to 6000 rpm, and coolant flow is regulated at 8 liters per minute to prevent thermal distortion. The machine frame is constructed from cast iron with vibration-dampening ribs, a standard feature in industrial-grade grinders. The workholding system uses magnetic chucks or custom fixtures compatible with ISO 286-1 tolerance classes, ensuring consistent spring end flatness and perpendicularity. This machine does not include automated loading, but supports manual feed with digital readout for operator control.

Buyers in the automotive suspension, aerospace actuator, and medical implant industries use this grinder to produce critical spring components requiring low surface roughness (Ra ≤ 0.8 μm) and minimal micro-cracking. Typical orders range from one unit for prototype validation to five units for production lines. Trade terms are negotiable, with FOB Guangxi port as the standard. Packaging includes wooden crates with foam padding and moisture barriers, suitable for sea freight. Lead time is confirmed upon order, and installation support is available via video call.

Wintime Machinery Co., Ltd. is based in Guilin, Guangxi, China, and operates as an importer and distributor of industrial machinery components. The company’s profile indicates it holds harbor-tier trust verification, suggesting documented export experience and logistics capacity. It does not claim to be a manufacturer, nor does the listing specify factory size, workforce, or revenue. Its operational focus appears to be sourcing and coordinating delivery of machinery, with no verifiable claims about in-house R&D or production capability.

The supplier has no listed certifications, patents, or client references. Response metrics show zero response rate and no average response time, indicating limited buyer communication activity. Buyers should treat this as a trading company rather than a direct manufacturer. The listing does not state whether the machine is produced under OEM agreement, nor does it provide documentation of compliance with international safety standards beyond unverified mentions. Due diligence is advised on technical claims and after-sales support.