Dejun Frequently Asked Questions For U
Q: What types of cranes does Dejun Crane Manufacturer?
A: Dejun Crane manufactures overhead cranes, gantry cranes, jib cranes, hoists, winches, and crane components, and customized industrial lifting systems. Our cranes are used in workshops, warehouses, steel plants, shipyards, power plants, precast yards, logistics centers, and heavy manufacturing facilities.
Q: How do I choose the right crane for my factory?
A: To choose the right crane, you need to confirm the lifting capacity, span, lifting height, working duty, building structure, power supply, and working environment. Our engineers can recommend a suitable crane based on your site layout and lifting process.
Q: What information should I provide for a crane quotation?
A: Please provide the lifting capacity, span, lifting height, travelling length, voltage, working duty, control method, indoor or outdoor use, and the material to be lifted. If possible, please also send workshop drawings or site photos.
Q: Can Dejun Company customize cranes for special working conditions?
A: Yes. We can customize cranes for high temperature, dust, humidity, corrosion, outdoor use, explosion-risk areas, steel plants, shipyards, ports, mines, chemical plants, and other demanding industrial environments.
Q: What is the difference between an overhead crane and a gantry crane?
A: An overhead crane runs on runway beams supported by the building structure or columns. A gantry crane runs on legs and ground rails, so it is suitable for outdoor yards or sites without existing runway beams.
Q: What is the difference between a single girder and a double girder overhead crane?
A: A single girder overhead crane is more economical and suitable for light to medium-duty lifting. A double girder overhead crane is better for heavier loads, larger spans, higher lifting heights, and frequent operation.
Q: When should I choose a jib crane?
A: A jib crane is suitable for local lifting around machines, workstations, loading areas, maintenance zones, and assembly lines. It is a practical solution when the lifting area is limited, and a full overhead crane system is not required.
Q: Can you provide cranes for steel plants or metallurgical applications?
A: Yes. Dejun Crane can provide heavy-duty cranes for steel plants, foundries, rolling mills, scrap handling, billet handling, and other metallurgical applications. Special designs can include heat protection, higher working duty, and customized lifting attachments.
Q: Can you provide outdoor gantry cranes?
A: Yes. Outdoor gantry cranes can be designed with rain covers, anti-corrosion painting, wind alarms, rail clamps, anchoring devices, and outdoor electrical protection. These features help the crane work safely in open yards and harsh weather conditions.
Q: What international standards can your cranes comply with?
A: Our cranes can be designed and manufactured according to FEM, CMAA, ISO, CE, EN, and GB standards, depending on the customer's project requirements and destination country.
Q: What is crane working duty?
A: Crane working duty describes how frequently and how heavily the crane operates. It affects the selection of the structure, hoist, motor, brake, gearbox, wheels, and electrical system. Frequent or heavy-duty operation requires a higher duty class.
Q: Can you customize the voltage and electrical system?
A: Yes. We can customize the crane electrical system to suit local power supply conditions, such as 220V, 380V, 400V, 415V, 440V, 460V, 480V, 50Hz, or 60Hz.
Q: Can you provide special lifting attachments?
A: Yes. We can provide grab buckets, electromagnetic lifters, spreader beams, C-hooks, lifting clamps, hooks, and other customized lifting attachments according to the material being handled.
Q: Do you provide installation support?
A: Yes. We provide installation drawings, wiring diagrams, manuals, installation videos, and online technical support. For large projects, on-site engineer support can also be arranged if needed.
Q: What is the warranty period?
A: Our standard warranty period is 24 months after the equipment leaves the Chinese port. Warranty terms may vary depending on the project and product type.
Q: How long is the production time for an overhead crane or gantry crane?
A: Standard overhead cranes and gantry cranes usually take about 15 to 30 days after technical confirmation and advance payment. Heavy-duty or customized cranes may take 30 to 45 days or longer, depending on complexity.
Q: Can customers buy spare parts after the warranty period?
A: Yes. We can supply original spare parts from China. Some standard electrical and mechanical parts can also be purchased locally if they use common international brands.
Q: How are large crane girders shipped overseas?
A: Large crane girders can be shipped by container, open-top container, flat rack container, or bulk cargo vessel. To reduce freight cost, we can also design segmented girders connected by high-strength bolts.
Q: How are cranes packed for export shipping?
A: Steel structures are wrapped with waterproof materials. Electrical parts, hoists, motors, and spare parts are packed in plywood cases or wooden boxes. Export packaging is designed to reduce moisture, rust, and transportation damage.
Q: Can customers buy spare parts after the warranty period?
A: Yes. We can supply original spare parts from China. Some standard electrical and mechanical parts can also be purchased locally if they use common international brands.
Q: Why choose Dejun Crane as a crane supplier from China?
A: Dejun Crane provides customized crane design, reliable manufacturing, international standard compliance, export packaging, installation support, spare parts supply, and after-sales service for global industrial customers.