Every new piece of industrial equipment that enters service without a structured commissioning process is a liability from day one — not an asset. Studies consistently show that fixing a defect identified during a Factory Acceptance Test costs ten times less than fixing the same defect after site installation, and ten times less again than discovering it during production. The commissioning process — from FAT at the manufacturer's facility through SAT at your site, mechanical installation verification, performance baseline, and preventive maintenance setup — is the single most important phase in an asset's entire lifecycle. Miss a step here and you inherit problems that compound for the next ten years. This checklist covers all five commissioning phases in sequence, structured so that maintenance engineers, reliability teams, and project managers can use it as a live digital record in Oxmaint — linked to the asset from its first day in your facility.
New Equipment Commissioning Checklist
Installation · FAT · SAT · Performance Validation · PM Setup
Relative cost of identifying and correcting the same equipment defect at each stage of the commissioning lifecycle. Source: industry commissioning best practice references.
Factory Acceptance Test — Vendor Site Verification Before Shipment
The FAT is your last cost-effective opportunity to reject or remediate equipment before it ships. Once an asset leaves the manufacturer's facility, every defect you find becomes your logistical and financial problem. The FAT is governed by IEC 62381:2024 for automation systems and mirrors the ISPE Baseline commissioning and qualification framework in regulated industries. Sign up for Oxmaint to run the FAT checklist as a digital form linked to the new asset record from the moment of PO issuance.
Mechanical Installation — Site Preparation, Alignment & Utilities
Installation quality determines how the equipment performs for the next decade. A machine that is installed 0.3mm out of level, with a coupling misaligned by 0.1mm, or anchored with insufficient torque on the baseplate will generate vibration that destroys bearings on a schedule that looks like random failure — until a precision maintenance audit traces every bearing replacement back to the original installation error. Book a demo to see how Oxmaint captures installation measurement records against the asset for lifetime trend analysis.
Site Acceptance Test — Integration, Environment & Operational Readiness
The SAT validates what the FAT could not — how the equipment performs in its actual operating environment, integrated with your plant systems, utilities, and control architecture. Transport, installation, and environmental differences between the factory and site regularly surface issues that passed FAT without triggering any defect. The SAT is your final gate before production handover. Sign up for Oxmaint to run SAT as a parallel digital workflow to the FAT record, with deviation tracking linked to the same asset.
Performance Validation — Capacity, Quality Output & Efficiency Confirmation
Performance validation answers the question the business actually cares about: does this equipment produce the output at the quality and rate specified in the purchase contract? The SAT confirms the equipment operates — the performance validation confirms it operates at specification. These are different tests with different acceptance criteria. Book a demo to see how Oxmaint records performance validation results against the asset and flags deviations from contractual specifications.
OEE Baseline & Preventive Maintenance Setup — Asset Lifecycle Foundation
The commissioning phase ends when the OEE baseline is set and the preventive maintenance programme is active in your CMMS. An asset that completes SAT and performance validation but enters production without a PM schedule and OEE measurement framework will degrade on an unmanaged trajectory. The first 90 days of production operation establish the baseline that every future reliability discussion will reference. Sign up for Oxmaint to configure OEE tracking and PM work orders in the same platform where your commissioning records live.
What Structured Commissioning Changes — A Documented Case
We commissioned a high-speed packaging line using the Oxmaint five-phase checklist. During FAT, we identified three Category A punch list items — two interlock configuration errors and a dimensional mismatch on the air supply manifold position that would have required a field modification. Both were resolved at the vendor's facility. During SAT, we found a control integration issue with our site DCS that the vendor's factory environment could not have replicated. The SAT run data — 96 hours continuous — became the OEE baseline we use today, 18 months later. We started PM work orders on the day of handover. In the first year, we ran 97.2% availability against a target of 90%. The commissioning record in Oxmaint has been referenced four times — once for a warranty claim, twice for maintenance troubleshooting, once for an insurance audit. Every time, the data was there.
Equipment Commissioning — Common Questions
FAT (Factory Acceptance Test) is performed at the manufacturer's facility before shipment to verify the equipment meets design specifications in a controlled environment. SAT (Site Acceptance Test) is performed at the customer's site after installation to verify integration with site systems and performance under real operating conditions. Commissioning is the broader process of activating and optimising the equipment for production — FAT and SAT are the validation gates within that process. Sign up for Oxmaint to manage all three phases from a single asset record with linked documentation and punch list tracking.
Industry standard guidance from ISPE and IEC 62381:2024 recommends a minimum 72-hour continuous run at production load conditions for standard industrial equipment. For complex or regulated environments (pharmaceutical, food grade, pressure systems), the SAT run is typically 168 hours (one week) without unplanned interruption. Any unplanned stop during the SAT run resets the clock — the run period must be completed continuously to confirm operational stability. Book a demo to see how Oxmaint structures the SAT run period logging with timestamped start, stop, and deviation records.
The OEE baseline should be established during the SAT run period, not after an arbitrary run-in interval. The SAT run, conducted at production load with all systems operational, represents the best available baseline for a newly commissioned asset. Waiting for a "run-in period" typically means the first 30–90 days of production data are never formalised as a baseline — and the team loses the reference point that distinguishes early-life degradation from commissioning defects. Oxmaint captures OEE data from the first production shift and compares it against the SAT run baseline automatically.
Yes — for major upgrades and retrofits, the FAT phase applies to any vendor-supplied components or sub-systems, the INS phase covers the installation of the upgrade, the SAT phase validates integration with the existing plant systems (which is often more complex than for new equipment because legacy interfaces must be maintained), and the performance validation and OEE phases rebaseline the upgraded asset's performance. Book a demo to configure a retrofit-specific commissioning template in Oxmaint that links the new commissioning record to the existing asset history.
Every commissioning record in Oxmaint — FAT report, SAT run data, alignment readings, vibration baseline, performance validation results — is attached to the asset record and accessible from the same interface used for daily work orders, PM scheduling, and condition monitoring. When a maintenance technician raises a work order for a bearing failure 18 months after commissioning, the original alignment report and vibration baseline are one click away — making root cause analysis faster and more accurate. Sign up for Oxmaint to experience the full asset lifecycle record from first bolt to final decommission.
Start Commissioning the Right Way — From Day One
Every phase of this checklist exists because a maintenance problem — a bearing failure, a warranty dispute, an unexplained quality defect — has been traced back to a commissioning step that was skipped, undocumented, or lost in a paper folder. Oxmaint gives every commissioning check a timestamp, a photo record, an asset link, and an escalation path — so the documentation that protects your investment is always there when you need it.
