---
title: How One Shop Increased OEE by 15% on Repeat Jobs
description: Discover how analyzing unplanned spring passes helped reduce overtime and optimize CNC programs.
---

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# **How One Shop Increased OEE by 15% on Repeat Jobs**

 Download the case study

### Problem & Context

A precision machine shop noticed certain CNC programs were always running late. Spring passes (rework without a change in toolpath) were silently adding time, without being tracked.

Using JITbase, they identified that **51% of overtime** came from these reworks. With data in hand, they finally understood the true cause of the delays

 

 

![ChatGPT Image Jun 3, 2025, 04_48_45 PM](https://www.jitbase.com/hs-fs/hubfs/ChatGPT%20Image%20Jun%203%2c%202025%2c%2004_48_45%20PM.png?width=449&height=299&name=ChatGPT%20Image%20Jun%203%2c%202025%2c%2004_48_45%20PM.png)

 

 

![ChatGPT Image Jun 3, 2025, 03_44_22 PM](https://www.jitbase.com/hs-fs/hubfs/ChatGPT%20Image%20Jun%203%2c%202025%2c%2003_44_22%20PM.png?width=459&height=306&name=ChatGPT%20Image%20Jun%203%2c%202025%2c%2003_44_22%20PM.png)

 

## From Hidden Losses to Real Performance Gains

Once JITbase flagged the repeated spring passes, the Methods department validated the issue and improved the CNC programs accordingly.

The impact:

+50% performance improvement on affected programs

+15% overall OEE increase

Better planning with more reliable production estimates

 

 

![RdlNIVebTM6gVAOtGqVrCA](https://www.jitbase.com/hs-fs/hubfs/RdlNIVebTM6gVAOtGqVrCA.webp?width=1312&height=736&name=RdlNIVebTM6gVAOtGqVrCA.webp)

## Know What’s Really Slowing You Down

This case study reveals how program-level monitoring helped one shop align real and estimated cycle times, eliminating hidden time losses.

## **Get rid of Excel for production planning**

Equip your Supervisors and Production Managers with the tools they deserve

 Download the case study

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