Container manufacturer tell you: Several knowledge about containers

1. HQ, GP, and Piggyback


  1. High Cube Container generally refers to a 40-foot container, usually 40GP(general purpose) and 40HQ. The 45-foot container is generally considered to be a special container.
  2. General purpose generally refers to a 20-foot container, usually 20GP.
  3. Piggyback refers to two small containers of 20 feet each. For example, a trailer pulls two 20-foot small containers at the same time; when hoisting in a port, two 20-foot containers are hoisted onto the ship at one time.


2. LCL and FCL


  1. Less than Container Load refers to goods with multiple owners in a container. Small batches of goods that are less than a full container are LCL, which is operated in accordance with LCL-LCL.
  2. Full Container Loadrefers to a container with only one owner or manufacturer of goods. Larger batches that can fill one or more FCLs are FCLs, according to FCL-FCL to operate.


3. What are the common specifications of containers?


  1. 40-foot high container (40HC): 40 feet long, 9 feet 6 inches high; approximately 12.192 meters long, 2.9 meters high, and 2.35 meters wide. The general load is about 68CBM.
  2. 40-foot general-purpose container (40GP): 40 feet long, 8 feet 6 inches high; about 12.192 meters long, 2.6 meters high, and 2.35 meters wide. The general load is about 58CBM.
  3. 20-foot general-purpose container (20GP): 20 feet long, 8 feet 6 inches high; approximately 6.096 meters long, 2.6 meters high, and 2.35 meters wide. The general load is about 28CBM.
  4. 45-foot high container(45HC): 45 feet long, 9 feet 6 inches high; approximately 13.716 meters long, 2.9 meters high, and 2.35 meters wide. The general load is about 75CBM.


Reefer Sea Container
Reefer Sea Container


4. What is the difference between a high container and a general-purpose?


The high container is 1 foot taller than the general-purpose (one foot equals 30.44cm). The length and width are the same regardless of whether it is an HQ or GP.


5. What is the weight of the container? What’s the heavy container?


  1. The weight of the container: the net weight of the container itself. The weight of 20GP is about 1.8 tons, and the weight of 40GP is about 3.4 tons.
  2. Heavy container: refers to the container filled with goods.


6. Empty container


A container that is not loaded is called an empty container.


7. Loaded Container


  1. For import purpose: refers to loaded containers on site to the manufacturer or logistics warehouse for unloading (generally referring to imports).
  2. For export purpose: refers to the heavy box is dropped back to the station after loading the goods in the manufacturer or logistics warehouse (generally export).


8. Empty Container


  1. For export purpose: refers to carrying empty containers on-site to the manufacturer or logistics warehouse for loading (usually for export).
  2. For export purpose: refers to the container(usually for imported cargo) after unloading at the factory or logistics warehouse.


9. What type of container does DC stand for?


DC refers to Dry Container, 20GP, 40GP, 40HQ and other containers are dry containers.


10. What type of container does OT stand for?


OT is the abbreviation of Open Top Container, which refers to a cabinet with no top of the box but a tent on the top of the container.


20’ hard open top container
20’ hard open top container


11. What does the half-open door mean?


A container with a half-side opening door.


12. What does the bill of lading number mean?


Usually, it is the number given to you by the freight forwarder. It may be the number of the Master Bill of Lading (MBL) or the number of the House Bill of Lading (HBL). Generally, you can back the box according to the ship’s name/voyage number and the bill of lading number.

The most important feature of The bill of lading (B/L or BL for short), is the “property certificate” unique to shipping.

The so-called “property right certificate” refers to the proof, bills, certificates and other written vouchers that prove that the real right holder owns the real right. MBL, HBL, etc. are a kind of property right certificate because they can be endorsed and transferred; multimodal bill of lading, rail waybill, air waybill, parcel or express receipt are not property right certificates. The above-mentioned documents are all receipts issued by the carrier for the goods carried.

Simply put, the waybill is just a receipt for the goods; the bill of lading (MBL, HBL, etc.) has the attribute representing the ownership of the goods.


13. What is the container number?


This number is unique in the world and consists of four letters and 7 numbers. The first three letters are the code of the container owner (shipping company or the container charter company), the fourth letter is U, and the next 6 The number is the serial number, and the last number is the check code. The box number is usually asked by the driver, because the driver only knows the box number when he goes to pick up the box. The box number is used in customs declaration, bill preparation, and warehouse receipt entry.


14. What is the Seal number?


It refers to the number of the seal that locks the container door. The lead seal is generally provided by the shipping company and needs to be purchased at a cost of 6 dollars each.


15. What is generally on the bill of lading?


The contents of the bill of lading generally include a bill of lading number, ship name, and voyage, box weight, cargo description, number of pieces, gross weight, volume, number of boxes, issuer and signature, etc.


16. What matters should be paid attention to when shipping?


Explain to the car owner whether you are exporting or importing, box type, box volume, cargo weight, location, size, and whether you need an agreement, time to the manufacturer, special requirements for boxes, etc.


17. What issues should be paid attention to when writing a car dispatch form?


Write as clearly as possible, because some drivers don’t know alphabet letters at all. Ship name, voyage, bill of lading number, station, arrival time, manufacturer address, contact number, box special requirements, and manufacturer’s special requirements must be written clearly. If you have an invoice, write it down clearly, and don’t let the driver make the wrong letter.


In addition, the issues that should be paid attention to should be written on it. For example, some goods have very strict requirements on the cabinet. You must explain it clearly to the driver, so as not to incur expenses and fail to explain clearly to the driver.

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