Our service path starts with the real application: payload, moment load, stroke, speed, duty cycle, environment and controller network. From there, the team reviews rail guide life, ball screw critical speed, servo inertia ratio, hydraulic force reserve and drive cabinet constraints. The intent is not to sell a spare part in isolation; it is to protect the machine availability target and give maintenance, controls and procurement the same technical basis.
Load, acceleration, stroke and duty cycle are checked against L10 h targets, ISO 3408 screw selection and rail moment charts. This review is useful when a new machine is still flexible enough to change guide size, screw pitch or motor frame.
Fault codes, motor feedback, brake status, cable shield condition and cabinet temperature are documented before repair. For plant-down cases, the engineer distinguishes a failed drive from a load-side mechanical jam.
Force, speed, heat rejection, leakage risk and cycle profile are compared when a hydraulic cylinder could remain hydraulic or move to an electric actuator. The outcome is a practical trade-off rather than an absolute claim.
Teams receive parameter sheets for drive enable, homing, limit switches, safe torque off and network mapping. Documentation keeps the commissioning record aligned with UL 508A panel practice and EMC 2014/30/EU considerations.
Every recommendation is framed with engineering boundaries. A bearing runner block may be acceptable at one offset moment but not another. A ball screw may meet positioning goals while failing critical speed. A servo drive may have enough continuous torque but insufficient thermal margin under repeated indexing. By documenting the limit, maintenance teams avoid chasing vague descriptions such as premium, heavy duty or high precision without the AGMA, ISO, IE or L10 reference behind them.
A European packaging OEM used the sizing review to compare a compact ball screw axis with a belt module for a washdown zone. The report did not promise zero maintenance; it documented lubrication access, IP rating choices, repeatability target and the spare carriage plan. A mining maintenance contractor used servo repair triage to separate a feedback cable fault from an overloaded linear axis before ordering parts. A Tier-1 automotive tooling team used the commissioning worksheet to align safe torque off, network mapping and brake holding checks across multiple stations.
These examples are deliberately described by buyer category because OEM confidentiality matters. The important output is the engineering trace: what load was assumed, which standard was referenced, what boundary condition changed the recommendation and which spare or datasheet procurement needs next.
We will return a service path with the data needed for repair, replacement or redesign.