How To Buy A Bridge Crane With High Production Efficiency?
Jan 16, 2023
How to buy a Bridge Crane with High Production Efficiency?
First of all, we need to understand the types of bridge cranes, mainly including hook bridge cranes, grab bridge cranes, electromagnetic bridge cranes, dual-purpose bridge cranes, and triple-purpose bridge cranes. The spreader is one of hook type, grab type, and electromagnetic chuck type, or two or three of them are used at the same time. Universal overhead cranes are widely used in indoor and outdoor warehouses, on-site, docks, open-air storage yards, etc.
Special-purpose bridge cranes are not included in this analysis, such as metallurgical bridge cranes, foundry bridge cranes, etc.
Different types of overhead cranes have different production efficiencies due to their different production environments.
The production effect of bridge cranes is compared by parameters
1. Rated lifting capacity. When setting the main and auxiliary hooks, the rated lifting capacity is expressed as a fraction, the numerator indicates the lifting capacity of the main hook, and the denominator indicates the lifting capacity of the auxiliary hook.
2. Span. Also known as span, it refers to the distance between two parallel tracks on which the crane travels. The span of the crane is generally 1.5m smaller than the span of the site, and the span is a level every 3m, from 10.5m to 31.5m, and the span exceeding 31.5m is a non-standard span.
3. Speed. The speed depends on the busyness of the crane, the speed is low for light work and fast for heavy work. The lifting capacity is small and the speed is fast, and the lifting capacity is large and the speed is slow, otherwise it is unfavorable.
Productivity of overhead cranes compared by operating speed
1. The speed of the cart. There are three kinds of moving speed of the cart: 80, 100, 120m/min
2. The speed of the trolley. The moving speed of the trolley is generally 40m/min
3. The rising speed of the hook. Generally 8-20m/min
4. Ascent height. The standard rising height of the hook is 12m, every increase of 2m is a level, up to 32m.
We can analyze the bridge crane suitable for us through the above several items. The high production efficiency of bridge cranes is judged according to various factors, and it cannot be directly judged whose efficiency is high.
How to improve the production efficiency of bridge crane
1. 15 ton Bridge crane maintenance
Regular inspections and preventive maintenance help identify risks in crane work and opportunities for improvement while maintaining compliance. The purpose of inspection is to assess the safety of equipment, detect wear and tear, and determine maintenance needs for safe production operation. Plus, verify equipment compliance with local laws and regulations, avoiding costly fines and business disruption.
An effective preventive maintenance program is tailored to the crane's working environment, enabling regular maintenance and service.
2. Small modification of bridge crane
A minor retrofit is a way to replace components or add current technology to your existing crane. Common retrofits include replacing hoists, components, appliances or controls, adding new features and updating technology. Small retrofits usually require only a small amount of downtime, design and estimated time to complete.
3. Remote control
Better ergonomics help reduce operator stress and increase productivity. The remote control also saves operator time.
4. Frequency conversion control (VFD)
Proper infinitely variable speed control reduces sway and load sway, increasing operator productivity.
5. Anti-side stretch protection
Pull sideways when the load is not under the hoist when ascending or descending. Side pulling can damage drums, wire ropes and guides and is a common cause of failure. Anti-side pull protection is used to stop the rising action when detecting side pull.
6. Wire hoist
When a hoist reaches the end of its useful life, it is more efficient and cost-effective to replace the hoist than to replace some of its components. Replace the hoist in time, choose the right product, and significantly improve the reliability, safety and production efficiency of the equipment.
