Lifting equipment involves personal safety, so care standards are stricter than for ordinary plant. Wire rope, brake and limit switches: none of the three can be allowed to slide.
Each guide is organised in three parts — daily care points, periodic maintenance table, common mistakes — so you can put it to use as is.
Crane inspection has both regulatory requirements and technical essentials. The regulations are the floor (periodic statutory inspection, certified operators); the technical essentials mean finding the hazards before the inspection does.
Crane electrics differ from ordinary plant: heavy vibration, frequent start-stop duty and energy regeneration. Those features set the care priorities — fastenings, conductor rails, braking resistors and protection functions.
Electric hoists are the most numerous and most used lifting equipment in a plant, and usually the least looked after. Many are only remembered once the wire rope is a bird's nest and the brake is slipping — by then the cost has doubled.
Crane maintenance has to be coordinated with production for downtime windows. Monthly work can fit into shift-change gaps; annual overhaul needs a proper shutdown. Knowing what can be done live and what cannot is the key to scheduling.
Lifting equipment carries the heaviest safety weight in any plant: it moves heavy loads over people's heads year-round, and broken wire rope strands, brake failure or limit-switch failure - any one of them - means an accident, not just a stoppage. Maintenance of lifting equipment is therefore first a compliance matter: periodic statutory inspection is a legal requirement, and daily checks are the safety baseline.
The maintenance logic for this category is "safety parts checked daily, structural parts inspected monthly, statutory inspection cycles kept": someone looks at the wire rope, hook and brakes every day; runway structure and electrics are recorded monthly; and statutory inspection is booked proactively before the due date. The four articles in this category cover periodic inspection of bridge cranes, electrics and VFD drives, electric hoists, and monthly/annual overhaul scheduling.
FIELD · SCHH-2026
FIELD · SCHH-2026
FIELD · SCHH-2026On two levels: the operator does a pre-shift check (brakes, limits, wire-rope appearance, unusual noises) within ten minutes; the professional monthly inspection - measurements, flaw detection, electrical tests - is handled by your equipment management staff or by us. The pre-shift checklist is designed as part of our system delivery, with acceptance criteria written in language the operator understands.
It depends on the condition of the structure and mechanisms: where the girder shows no out-of-limit deformation and no crack propagation in the welds, a mechanical overhaul plus electrical retrofit can keep the crane in service at far less cost than replacement. Where fatigue damage to structural members is clear, it should be scrapped - the safety margin of lifting equipment is not negotiable. We have performed many old-crane assessments, and every conclusion rests on inspection data: if it can be repaired we save you money, and if it must be replaced we say so plainly.
There is no elasticity in lifting-equipment maintenance - the discard criteria for safety parts are hard lines. When broken wire strands reach the limit or brake slip exceeds spec, there is no room for "let's use it a while longer". That is not conservatism; it is the nature of this equipment. Only three points are stressed here. First, the quality of pre-shift checks depends on checklist design: write the criteria so the operator understands them (strand counts you can see at a glance, slip measured against scribed reference lines), or the check degenerates into signing. Second, statutory inspection is not a burden but a free third-party physical - the issue list in the inspection report is the best rectification priority table there is. Third, decide an old crane's fate with inspection data; where the girder and welds are in good shape, overhaul-and-continue is entirely viable. Don't let the equipment's age speak in place of the data.
This section was written in-house by the Industrial Equipment Services Division. Thresholds and intervals are field-experience values; in practice follow the equipment manufacturer's technical documents and current national standards.
Send us your equipment list and we will specify inspection items, intervals and acceptance criteria for your operating conditions.
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Guangzhou Yujihang Computer Technology Co., Ltd. · www.accpc.com.cn
Guangzhou Henghuan Technology Co., Ltd. · www.hhrobotics.cn
Nanchong Henghuan Robotics Co., Ltd. · www.hhrobots.cn