Enhancing Equipment Reliability: Standard Operating Procedures for Spindle Temperature Monitoring and Hydraulic System Pressure Checks on CNC Milling Machines

08 12,2025
KAIBO CNC
Application Tips
This technical guide explores essential maintenance and troubleshooting practices for the DC1317 CNC milling machine used in automotive plastic mold manufacturing at Ningbo Kaibo Numerical Control Machinery Co., Ltd. Focused on spindle temperature monitoring and hydraulic system pressure checks, it outlines standardized procedures that help reduce unplanned downtime, extend machine life, and ensure continuous, safe production. The article also addresses unique maintenance requirements for dual-column CNC mills under heavy-duty operation, provides real-world fault diagnosis examples, and includes expert insights and visual aids such as diagrams and videos. Designed for technicians seeking actionable guidance, this resource supports the development of consistent, reliable maintenance habits while highlighting the company’s commitment to professional support and free training programs—key differentiators for decision-makers evaluating long-term equipment performance.
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Why Preventive Maintenance Matters for Your CNC Milling Machines

In the high-stakes world of automotive plastic mold manufacturing, downtime isn’t just inconvenient—it’s costly. According to industry data from Deloitte (2023), unplanned machine stoppages in precision machining can cost up to $25,000 per hour in lost production and rework. That’s why consistent maintenance routines aren’t optional—they’re essential.

The Hidden Risks Behind Unchecked Thermal Expansion

Take the DC1317 vertical milling machine from Ningbo Kebao CNC Machinery Co., Ltd.—a popular choice among mold makers handling complex geometries. While its double-column design offers excellent rigidity under heavy loads, it also demands precise thermal management. A study by Machine Tool Reliability Journal (2022) found that unchecked spindle temperature rise above 35°C during operation increases wear on bearings by up to 40% over time.

Here’s what you need to know:

Maintenance Task Recommended Frequency Key Metric to Monitor
Spindle Temperature Check After every 8-hour shift ΔT ≤ 35°C from ambient temp
Hydraulic Pressure Test Weekly (or after 500 cycles) Stable at 7–9 MPa
Linear Guide Lubrication Daily before startup No dry spots or noise

Real-World Case: How One Shop Saved $18K in a Month

A German Tier 1 supplier using the DC1317 reported a sudden drop in surface finish quality. After reviewing their logs, they discovered that hydraulic pressure had drifted below 6 MPa—well outside the standard range. The root cause? A worn seal in the pump manifold. With immediate replacement and staff training, they avoided a full machine rebuild costing over €12,000—and prevented three weeks of missed delivery deadlines.

This is exactly why Kebao provides detailed Standard Operating Procedures (SOPs) for both routine checks and emergency troubleshooting. Their manuals are not just documents—they’re living guides backed by real-time field feedback from over 200 global customers.

Want to reduce unexpected downtime by 60%? Our free technical webinars cover how to implement these practices in your shop—even if you're new to CNC maintenance. Learn from engineers who’ve worked with hundreds of machines like yours.

Whether you're managing one machine or an entire production line, proactive care doesn't have to be complicated. It just needs to be systematic—and supported by reliable partners who understand your challenges.

Download the Full DC1317 Maintenance SOP Pack Now
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