20t heavy duty Explosion-Proof chain block

20t heavy duty Explosion-Proof chain block System 1

20t heavy duty Explosion-Proof chain block System 2

20t heavy duty Explosion-Proof chain block

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Loading Port:: Tianjin

Payment Terms:: TT OR LC

Min Order Qty:: 1 pc

Supply Capability:: 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.

FAQ

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.

Q: What is the difference between cable stayed bridge and suspension bridge?: The main weight of a bridge is not the car or train on it, but the road itself, that is, the road we see. Now let's analyze this:We analyze it with a pylon. The two sides of the pylon are symmetrical stay cables which connect the main beam of the pylon through the stay cables. Now suppose that only two towers on both sides of the cable, symmetrical each one of the two cables subjected to beam gravity, two symmetrical of the cable along the direction of the force, according to the stress analysis, the stress can be decomposed into a horizontal and vertical force to a downward force a vertical force; and the same on the right side of the force can be decomposed into the right level of a downward force; the two force is symmetrical, so the two level of the left and right horizontal force cancel each other out,

Q: Where should I pay attention to the formwork?: In the case of cast in place multi-storey houses and structures, the method of segmental formwork shall be adopted, and the upper formwork and its support shall be installed and shall meet the following requirements:The lower floor shall bear the load-bearing capacity of the upper layer or support with the support;The column of the upper bracket shall be used for the column of the lower layer bracket and the padding plate shall be laid;When the suspension formwork and truss formwork method are adopted, the supporting capacity and stiffness of the supporting structure must meet the requirements.

Q: What are the dangerous sections of the crane hook?: B -B and A-A section section of the same, B -B section in the sling tension loading, have been straightened and cut off the trend here, shearing stress is maximum, it is also dangerous section.

Q: How much is the crane arm of the tower from the residential building recently?: No aluminum conductor or steel shall be used as grounding or ground wire for the installation of tower cranes. A bolted wire must have an end. Grounding is mainly made up of the following three ways:1. the grounding body adopts a regular grounding pile, or a 33*4.5 long 1.5m steel tube, or a 70*70 long 1.5m angle steel.2. the floor is made of steel plates or other metal plates with an area of 1 square meters. The ground is deep from the ground 1.5m.3. a copper conductor with a cross-section of not less than 28 mm or a steel conductor with a cross section of not less than 50 mm is buried in the slot and its embedment length is determined by the grounding resistance.In the above three ways, the grounding body leads the copper conductor, the sectional area shall be no less than 25, if the soil is not conductive, the sodium chloride (salt) can be embedded in the soil. Then irrigation. For walking crane, each rail must be grounded, and the two tracks are connected by wires. Electrical connections should also be made between the two rails, with a resistance of no more than 4.

Q: What is the name of the wire above the train?: The catenary provides 25 thousand volt power frequency alternating current for the locomotive, according to the locomotive model difference, adopts the direct step-down, the frequency conversion power supply or the AC and DC conversion power supply, this is mainly for the speed regulation convenience.

Q: They are used for slings, ropes, chains, suspenders, hand hoists, right?: The steel rope, chain and sling belt can be directly used as slings, and the hand chain hoist can not be used as slings.

Q: What are the precautions for rigging in hoisting works?: The load weight shall not exceed the limit load of sling, sling should be used before the use of visual inspection, and according to the spreader lifting load check the working load limit, meet the requirements before use.

Q: How do you tie the wire rope?: A variety of commonly used wire rope phosphating coating steel wire rope, galvanized steel wire, stainless steel wire rope or coated steel wire rope, the use of atmospheric environment, patented technology to produce manganese phosphating coating of steel wire rope has the longest lifespan, heavy corrosion environment optimization of hot galvanized wire rope double - phosphating coating.

Q: The wire rope lock can hang a lot of things: Phosphating coating of steel wire rope (Chinese patent), steel wire by manganese or zinc manganese phosphating, surface wear resistance and corrosion resistance of fully, not easy to wear is not easy to corrosion fatigue life of the steel wire rope large increase, fatigue life is the same structure of plain steel wire rope 3 times, the fatigue life can be verified by fatigue test (do the fatigue test of the most credibility) is a replacement of wire rope, smooth upgrade, also be replaced after plating the first pull layer of thin zinc galvanized steel wire rope (by using salt spray test or inspection service life, corrosion resistance comparison) super long units, the use of lower cost, better stability.

Q: Why are the suspension bridges a main cable, even a n multi sling, not a bridge directly from the tower?: The main weight of a bridge is not the car or train on it, but the road itself, that is, the road we see. Now let's analyze this:We analyze it with a pylon. The two sides of the pylon are symmetrical stay cables which connect the main beam of the pylon through the stay cables. Now suppose that only two towers on both sides of the cable, symmetrical each one of the two cables subjected to beam gravity, two symmetrical of the cable along the direction of the force, according to the stress analysis, the stress can be decomposed into a horizontal and vertical force to a downward force a vertical force; and the same on the right side of the force can be decomposed into the right level of a downward force; the two force is symmetrical, so the two level of the left and right horizontal force cancel each other out,

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