Unplanned downtime is the largest unforeseen expense in industrial operations.
When a conveyor breaks down or a filter clogs unexpectedly, the costs add up: idle labor, missed orders, scrap contamination, and sometimes environmental violations.
A tailored preventive maintenance (PM) plan boosts equipment reliability, lowers the total cost of ownership (TCO), and extends the service life of high-value manufacturing assets.
Why Is Preventive Maintenance So Critical?
Preventive maintenance isn’t just about avoiding breakdowns; it’s about maintaining efficiency, safety, and profitability. According to industry data, planned maintenance costs are typically 2-4x lower than emergency repairs.
The PRAB® blog, Improving Your Preventive Maintenance Programs, shows how proactive inspection and proper lubrication extend component life, prevent contamination, and reduce risk.
Manufacturers with structured PM programs often report measurable gains in several key areas:
| Benefit | Typical Impact |
| Reduced Downtime | Up to 30% less unplanned stoppage |
| Extended Service Life | 25-50% longer component lifespan |
| Lower Total Cost of Ownership | Planned repairs cost 2-4x less |
| Improved Safety and Compliance | Fewer leaks, spills, and violations |
| Higher Throughput | Clean systems increase material handling efficiency |
Well-maintained PRAB® systems also use less power, have fewer hydraulic failures, and perform consistently under load.
PRAB® equipment—often still operating after more than three decades—proves that disciplined maintenance delivers unmatched durability and ROI.
Below are highlights from PM guidelines for PRAB® equipment. Complete schedules are available in the operation guides provided with each piece of equipment.
| Frequency | Tasks |
| Daily / Per Shift | Clear chips. Check belt tracking and alignment. Inspect safety guards. |
| Weekly | Lubricate bearings, chains, and drives. Check belt tension and wear bars. Verify auto-lube systems. |
| Monthly | Inspect pulleys and rollers for wear. Check reducer oil level and grease points. Inspect the frame for cracks. |
| Annually | Conduct vibration and thermal analysis. Drain and replace gear reducer oil. Re-align frame and drivetrain. |
TIP: PRAB® recommends Shell Nerita 2 or equivalent grease. Predictive diagnostics, such as thermography, detect misalignment or bearing issues before failure.
| Frequency | Tasks |
| Daily | Check feed chute for blockages. Monitor for unusual noise or vibration. |
| Every 200 Hours | Lubricate bearings and drive components. Inspect belt drives, reducers, and liners. |
| Quarterly / Annually | Inspect hydraulic systems. Conduct full teardown and rebalancing yearly. |
See PRAB® Metal Chip Processing Systems for integrated crushers, wringers, and briquetters engineered for serviceability.
| Frequency | Tasks |
| Daily | Monitor pressure and flow gauges. Check for leaks and pump noise. Verify automatic advance operation. |
| Weekly | Clean strainers, nozzles, and float switches. Inspect filter media. |
| Monthly | Lubricate agitators and bearings. Test alarms, controls, and sensor calibration. |
| Annual | Inspect tanks for corrosion. Replace sprockets, seals, or drive chains. Conduct sediment flush and chemical cleaning. |
Related resource: PRAB Guardian® Coolant Recycling System—a fluid solution proven to cut new fluid purchases by up to 75%.
| Frequency | Tasks |
| Daily | Monitor pH, ORP, and turbidity sensors. Inspect pumps and mixers. Verify chemical dosing accuracy. |
| Weekly | Inspect sludge presses. Calibrate ozone and UV disinfection units. |
| Monthly / Quarterly | Flush dosing lines. Replace filter cartridges. Inspect evaporators and heat exchangers. |
| Annual | Descale exchangers. Audit compliance documentation. |
See the PRAB® Industrial Wastewater Treatment Solutions page to learn how PM supports compliance and Zero Liquid Discharge (ZLD).
While traditional PM is based on a fixed schedule, predictive maintenance (PdM) uses real-time data such as vibration, temperature, and oil analysis to predict when service is actually needed. However, both are crucial to optimizing the complete maintenance strategy.
PRAB® equipment works with PdM sensors and Industry 4.0 platforms, providing visibility into:
The main benefit of utilizing both PM and PdM is that it ensures only necessary maintenance is performed, boosting uptime and lowering labor costs.
Talk with PRAB® experts about adding IIoT and additional sensors to your equipment to further automate and streamline your operations.
In short: yes, absolutely! Preventive maintenance directly improves a system’s TCO in several ways:
The PRAB® Managed Maintenance Program provides OEM inspections, wear benchmarking, and proactive scheduling—ideal for plants with smaller maintenance teams.
For long-term success, combine PRAB®’s checklists with these operational best practices:
PRAB®’s commitment goes beyond design. With over 200 published technical resources, PRAB.com offers case studies and checklists to help manufacturers boost equipment and maintenance reliability.
PRAB®’s equipment longevity—often surpassing 30 years—shows how engineering quality, combined with disciplined maintenance, yields lasting value. Every PRAB® system is designed for serviceability, uptime, and low ownership cost.
For over 70 years, PRAB® has engineered rugged, USA-built systems for continuous operation in harsh environments. From scrap conveyors to chip processing and coolant recycling units, PRAB® systems are known for longevity—many run decades beyond their expected lifecycle.
Case in point: Old Faithful Retires—Zircoa Reinvests in PRAB® tells the story of a conveyor that ran for 48 years before replacement—proof that disciplined maintenance, combined with robust design, delivers exceptional TCO.
Preventive maintenance is no longer a nice-to-have; it is essential for sustainable manufacturing. PM programs protect people and profits while reinforcing operational and environmental goals.
For plant managers and engineers seeking long-term reliability, the best PM plan starts with the right equipment—and the right partner.
With more than 70 years of industry experience and engineering expertise, PRAB® helps manufacturers navigate operational, environmental, and economic challenges with equipment that improves efficiency, reduces expenses, and ensures compliance, all backed by 24/7 support from a team dedicated to helping your operation succeed.
Contact a PRAB® expert to learn more about how we can help implement a PM program designed to optimize your operation.
Explore PRAB®’s full library of maintenance resources, guides, and videos at PRAB.com.
