Reduce downtime through lubrication planning, tracking, and predictable service routines on site. Forecast grease cartridges, oil liters, labor hours, and total budgets accurately monthly.
| Equipment | Days | Shift Hours | Utilization | Interval Hours | Grease Points | Oil Points |
|---|---|---|---|---|---|---|
| Excavator | 30 | 8 | 85% | 50 | 18 | 6 |
| Wheel Loader | 21 | 10 | 75% | 40 | 22 | 8 |
| Dozer | 14 | 12 | 65% | 25 | 26 | 10 |
These rows show typical input combinations for planning. Adjust for actual manuals, ambient dust, water exposure, and work severity.
This calculator estimates service count, lubricant totals, and budget totals.
ShiftHours × Days × (Utilization ÷ 100)ceil(OperatingHours ÷ IntervalHours)GreasePoints × ShotsPerPoint × ShotVolume(ml) × Density(g/ml)OilPoints × OilVolumePerPoint(L)1 + (WasteFactor ÷ 100)Services × GreasePerService × WasteMultiplierServices × OilPerService × WasteMultiplier(GreasePoints × MinPerGreasePoint) + (OilPoints × MinPerOilPoint)LaborMinutesPerService × Services ÷ 60GreaseCost + OilCost + LaborCost + DowntimeCostField conditions can change real consumption. Use this tool for planning, then refine with recorded usage per service.
Track usage weekly to prevent costly bearing failures today.
Unplanned lubrication is a common driver of premature wear in pins, bushings, bearings, and slew rings. A structured plan reduces metal-to-metal contact, keeps contaminants out, and stabilizes maintenance labor. On busy sites, a consistent routine also improves handover between shifts and subcontract teams.
Lubricant demand is tied to real operating hours, not calendar days. This calculator converts your shift schedule and utilization into estimated operating hours, then forecasts the number of services over the period using the selected interval. Higher utilization quickly multiplies service events and total material use.
Grease usage can be estimated from point count, shots per point, and shot volume. For example, 18 points × 3 shots × 1.5 ml equals 81 ml per service. Using a density near 0.90 g/ml yields about 73 g per service before waste adjustments. This helps crews stage cartridges accurately.
Some assets require oil at multiple points during the same service window. By entering oil points and liters per point, you can forecast oil volume per service and for the whole period. This supports bulk ordering, tote sizing, and reducing partial containers that create spill risk.
Waste is normal on construction sites due to purge, wiped fittings, hose losses, and cleanup. A 5–10% factor is often used for routine work, while harsh conditions may justify more. The calculator applies the waste multiplier across grease and oil totals to produce a realistic procurement target.
Lubrication has a labor footprint that impacts schedule. Minutes per grease point and oil point allow you to estimate labor per service and total labor hours. If you track standby or production loss, adding a downtime cost rate can quantify the business value of faster, standardized servicing.
Material pricing varies by grade and supplier. Enter unit prices to estimate grease and oil spend, then compare against your maintenance budget. Cartridge estimates help prevent stockouts that delay work. Exporting results supports purchase requests, toolbox talks, and audit trails for preventive maintenance programs.
After each service, record actual grease and oil used and any abnormal observations, such as torn seals or contaminated fittings. Compare real usage to predicted totals monthly. If discrepancies persist, review point count, shot practice, interval hours, and utilization assumptions to tune the plan and reduce failures.
1) What interval hours should I use?
Use the manufacturer’s lubrication interval for your duty class. If conditions are dusty, wet, or high-load, shorten the interval and validate using temperature, noise, and wear observations.
2) How do I estimate shots per point?
Start with your standard practice or manual guidance. Verify by observing fresh purge at the joint and avoiding over-greasing that attracts grit or blows seals.
3) What grease density should I enter?
Most common greases fall near 0.85–0.95 g/ml. If your supplier provides a data sheet value, use it for better cartridge and cost estimates.
4) Why does utilization change service count?
Intervals are typically based on operating hours. Higher utilization increases operating hours within the same calendar period, so the calculator predicts more services and higher material demand.
5) Should waste factor include spills and purge?
Yes. Waste factor is meant to cover purge, wiped grease, hose losses, small spills, and cleanup. Use historical site data to select a defensible percentage.
6) Can I budget labor and downtime together?
You can. Labor rate estimates direct labor cost, while downtime rate estimates productivity impact. Keeping both visible helps justify tools, training, and standardized lubrication routes.
7) How often should I update inputs?
Update when utilization, intervals, points, or products change. Many teams review monthly, then refine after major projects, seasonal weather shifts, or new equipment deployments.
Important Note: All the Calculators listed in this site are for educational purpose only and we do not guarentee the accuracy of results. Please do consult with other sources as well.