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Comment Keepwin a livré une tige de piston de haute précision en 17-4PH en 45 jours

When Precision Meets Urgency: How Keepwin Rescued a European Client with 17-4PH Piston Rods

Introduction
In industrial manufacturing, even one flawed part can trigger costly delays and erode client trust. Therefore, smart buyers seek partners who pair speed et accuracy. This case shows how Keepwin Technology stepped in, fixed a supply crisis, and shipped crack-free 17-4PH high-precision piston rods within 45 days.

The Crisis
First, a European compressor maker discovered visible cracks on piston rods sourced elsewhere. Because the rods were unusable, the project risked penalties and contract breaches. Consequently, the client needed a reliable manufacturer—fast.

Choosing Keepwin
After research and referrals, the client contacted Keepwin. Immediately, our engineers reviewed the drawings, H900 heat-treat spec, and tight tolerances. Next, we proposed a clear production plan backed by strict QA. As a result, the client placed the urgent order with confidence.

Our Fast-Track Workflow
Keepwin matched precision with transparency. Below is the 45-day schedule we shared and met:

  1. Days 1-3 – Source certified 17-4PH bars; verify hardness.

  2. Days 4-8 – Rough CNC turning, then stress relief.

  3. Days 9-18 – Finish turning; OD grind to ±0.005 mm.

  4. Days 19-24 – H900 heat treatment; hardness check.

  5. Days 25-30 – Straightness and concentricity tests.

  6. Days 31-34 – 100 % ultrasonic crack inspection.

  7. Days 35-40 – Mirror polish; final dimension confirmation.

  8. Days 41-45 – Anti-corrosion packing; export crating.

Throughout production we sent weekly videos, daily photos, et live QA logs. Moreover, every deviation—no matter how small—was reported and approved in real time. Consequently, the client stayed fully informed and shortened their own inspection cycle.

Third-Party Validation
Before shipment, a certified lab checked size, hardness, straightness, concentricity, et surface defects. All rods passed with zero non-conformance. Thus, the parts installed smoothly, without a hitch.

Client Feedback
Soon after installation, Keepwin visited the plant. Because the rods fit perfectly, the client praised both quality et communication. One engineer noted, “It is rare to see a supplier align so well with our QC standards.” That endorsement says it all.

Why Keepwin Wins

  • In-house team with 20 + years on 17-4PH, 20Cr13, Inconel, and more.

  • ISO 9001-driven traceability from raw bar to finished part.

  • CNC, grinding, et heat treatment under one roof—therefore no sub-supplier gaps.

  • Proactive drawing review and tolerance advice before any chip is cut.

  • Flexible MOQs and fast-track lanes for urgent jobs.

  • Capability to build from drawings ou reverse-engineer samples.

In short, Keepwin combines precision, speed, et transparency. Whenever quality et timing matter, we deliver. Contact us today—let us solve your next challenge.

Image de John

John

After reading Keepwin’s article on diaphragm-compressor selection and maintenance, I now have a clear, structured understanding of the critical factors for compressing high-purity gases such as hydrogen and oxygen. The post combines solid data and API 618 references with a real 90-bar project case in Iran, convincingly showcasing Keepwin’s customization capabilities and delivery strength. The inclusion of ROI calculations and maintenance cost comparisons was especially user-oriented, directly addressing the pain points engineers face when choosing equipment. I’m looking forward to more content like this!

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