20t heavy duty Explosion-Proof chain block

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1 pc
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200 pc/month

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Quick Details

  • Condition: New

  • Place of Origin: Hebei, China (Mainland)

  • Brand Name: CNBM

  • Model Number: HBSQ20T

  • Usage: Construction Hoist

  • Power Source: Hand Chain

  • Sling Type: Chain

  • Maximum Lifting Weight: 20tons

  • Maximum Lifting Height: 3M

  • Lift Speed: same with pulling speed

  • Certification: CE,GS and ISO9001

  • Warranty: one year

  • After-sales Service Provided: No overseas service provided

  • Capacity: 20 tons

  • Standard lift height: 3M

  • Running test load: 20TONS

  • No.of falls of load chain: 8

  • Net weigth: 180kg

  • Color: cooper hoist

  • Description: Explosion-Proof chain hoist


 Main Features

Superior rigidity makes the hoist dust-proof and water-pfoof;
Severe environment and work condition are acceptable;
Simple structure and few components
Adopt Janpanese FEC chain;
To greatly enhance the performance of the fatigue  and wearresistance.
Limit protection adevice can avoid overload occerring;
Hook bolt can prevent the rigging accidently from slip;
Moter is equipped with thermal protection device;
limit contactors are set in the machine.








 Parameter List

 20t heavy duty Explosion-Proof chain block



 Our Service

1.We can make special sample according to the customer’s requirement.

2. We have more than 60 professional technical team, provide best after-sales service.

3. Fast delivery time.

4. We have CE, ISO9001 and GS certification.





1.What’s your product range?

 Electric Hoist: electric chain hoist , electric wire rope hoist, mini wire rope electric hoist, mini electric chain hoist.

Manual Chain Hoist and Lever Hoist Chain , Trolley , Jack,Lifting Strap,Cable Pulley, hand pallet truck,etc.

2.When Can I get the quotation?

We usually quote within 24 hours after we get your inquiry . If you are very urgent to get the price , please  tell us in your email so that we will regard your inquiry priority.

3.How can I get a sample to check your quality?

After price confirmation, you can require for samples to check our quality. If you need the samples, you need pay the express fee , 

4.What information should I let you know if I want to get a quotation?

  1. Lifting capacity.

   2. Lifting height.(hook center to ground)

   3. Power supply: Voltage.

   4. Span(rail center to rail center)

   5. Working condition: which material to lift? temprature?

   6. Would be better if you have drawings of your plant.



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- Self introduction

- Required specifications

- Inquire about price/MOQ

Q:They are used for slings, ropes, chains, suspenders, hand hoists, right?
A variety of commonly used wire rope phosphating coating steel wire rope, galvanized steel wire, stainless steel wire rope or coated steel wire rope.
Q:What does the inspection of rigging involve?
The crane used in atmospheric environment, preferably manganese phosphide coating, steel wire rope, heavy corrosive environment, preferred hot-dip galvanized double phosphating steel wire rope, priority wire rope in sea water. Please note that at the time of purchase, in the purchase invoice must indicate the name of wire rope, such as phosphate coated wire rope or 316 stainless steel wire rope, prevent illegal infringement of their legitimate rights and interests of enterprises, to counterfeit products in addition, patent products are generally in the rope on the outer packing is patent spraying mark, warranty book should be the main technical indicators, such as the phosphating film type and weight (film has an important influence on the weight of phosphating film size, wear resistance and corrosion resistance of the service life of the wire rope, for reference only)
Q:What's the catch?
Slings are ropes made of wire or synthetic fiber, used for hoisting.
Q:Ceiling installation does not allow the use of air nails?
Connection of hanging cup, sling and structural layerOperation method: (1) the main consideration connected with embedded parts and transition piece.In the first layer in embedded iron or wood brick (except water brick). The location shall be accurate and adequate adjustment should be made.The transition in the iron and wooden fittings, so as to adjust the mindware error, and mindware nail, screw, welding, wear.The suspender and the sling are connected with the transition connecting piece.
Q:Is the sling the same thing as the rigging?
I say you should be able to understand the sling, lifting heavy rigid fetching device operation means, that is to say can directly take hanging items, mainly include: grab, clamp, suction and special sling and rigging, etc.; refers to the lifting items, tie hook combination device with flexible. In the article, usually made from high strength flexible parts (steel wire rope, lifting chain, artificial fiber tape) with end ring, hook, shackle assembly.
Q:Does the pressing rope have any influence on the tension value of the wire rope?
According to the current market price of the phosphating coating steel wire rope, phosphating coating steel wire rope daily use cost is just plain steel wire rope about thirty percent of phosphating coating steel wire rope is a substitute for plain steel wire rope upgrade, for reference only.
Q:What is the safety factor of the wire rope as a motor lifting equipment, slings and slings?
3. stainless steel wire rope, the use of stainless steel wire rope system, such as 304 or 316 stainless steel, the price is relatively expensive, the stainless steel wire for manganese phosphating coating (stainless steel wire need special phosphating phosphating formula), you can use the same life greatly extended.
Q:What is the influence of lifting angle on rigging?
The vertical lifting is the best scheme for lifting. The smaller the angle between the sling and the vertical is, the greater the angle is, the greater the force the sling will bear. The sling will be easily broken off, which will lead to an accident, which is for reference only
Q:Where should I pay attention to the formwork?
When the welded steel bar and the formwork are installed together, the following requirements shall be met:The formwork must be fixed on the joint of the load-bearing welded steel frame;When installing the reinforcing steel formwork assembly, the sling shall be tied up according to the hanging point designed by the template.
Q:Notice of tower crane?
After the tower crane is installed, the whole machine should be inspected and adjusted, and shall be ready for delivery after passing the inspection in stages and through the whole machine. In the case of no load, the deviation of the verticality between the tower and the ground shall not exceed 4/1000.. The motor and hydraulic unit of the tower crane shall be carried out in accordance with the relevant provisions concerning the motor and hydraulic device.

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