China Good quality Hot Sale 20 Ton New Manual Chain Pulley Block with Free Design Custom

Product Description

Products Description
Subsea Chain Hoist , Model DF
Make by Standard:EN13157
1: Chain hoist Capacity range from 0.5ton to 50 ton
2: Compact sized design product suitable for all application.
3: Suspension and load hooks are made of alloy steel, 35CrMo treated heat and fitted with heavy duty safety  latches, fitting groove and inspection points.
4: Machined chain sprocket and gears provide smoother,more efficient operation.
5: Hook with safety latch securely can rotate freely 360 degrees.
6: Ergonomic handle design so that the hoist is easy to operate.
7: Hoist has overload protection system.
8: Gears are made up of 20CrMnTi material ,which ensures toughness and better strength.
9:Fitted with High strength grade 80 load chain (comply with EN 818, safety factor 4)
10:600hrs + Protection against salt spray tests according to ASTM B117
11: it can be used within an operating temperature range of -40°C to +60°C.
ADVANTAGE
A. We are professional manufacturer
B. CE certificate tested by TUV
C.  Forges and hear treated load hooks with batch traceability and stretch indicators
D.  360° degree hand rotation with stroke to ratchet indicators
E. Double pawl brake linings
F.  Forged safety latch
G.  Sealed roller bearings

We dele lifting are a professional manufacturer of electric chain hoist, chain block, lever block&other lifting equipments! Through more than 8 years' dedication, we've been the leading manufacturer of lifting industry in China!
Our company has achieved ISO9001 & CE certifications. Our products have been successfully exported to Europe, America, the Middle East, Africa & Southeast Asia.
We warmly welcome clients from all over the world to cooperate with us&develop worldwide market together! We also hope we can have the chance to establish long-term

MODEL HSH DF-S50 DF-S100 DF-S150 DF-S200 DF-S300 DF-S500 DF-S1000 DF-S1500
Capacity load kg 500kg 1000kg 1500kg 2000kg 3000kg 5000kg 10000kg 15000kg
standard lift m 3 3 3 3 3 3 3 3
load chain number of fall   1 1 1 1 1 2 3 6
force N 240 305 340 360 370 370 380 360
running testload kg 750 1500 2250 3000 4500 7500 15000 22500
load chain diameter x number of falls mm 5x15 6x18 8x24 8x24 10x30 10x30 10x30 10x30
hang chain diameter x number of falls mm 5x25 5x25 5x25 5x25 5x25 5x25 5x25 5x25
net weight kg 5.7 11 17 17 26 40 73 160
 Paking weight kg 6 11.5 17.6 17.6 26.5 40.6 73.6 180
packing size cm 27.5x14.5x15.5 28x17x18.5 31x17.5x22 31x17.5x22 39x19x26 44x24x26 58x46.5x24.5 47×42×70
add 1m load chain N.W (kg/m) 0.541 0.77 1.36 1.36 2.2 4.4 6.6 13.2
add 1m hand chain N.W (kg/m) 0.9 0.9 0.9 0.9 0.9 0.9 0.9 1.8
Dimensions(mm) a 122 152 176 176 216 216 244 441
  b 34 40 52 52 62 65 70 120
  c 118 145 170 170 204 204 204 66
  d 31 31 41 41 45 51 54 400
  e 119 145 157 157 167 167 167 222
  f 65 79 81 81 83 83 83 110
  Hmin 311 361 443 443 431 660 705 1094

 

MODEL HSH DF-S2000 DF-S3000 DF-S5000
Capacity load kg 20000kg 30000kg 50000kg
standard lift m 3 3 3
load chain number of fall   8 12 12
force N 380 400 390
running testload kg 30000 45000 75000
load chain diameter x number of falls mm 10×30 10×30 11.2×31
hang chain diameter x number of falls mm 5×25 5x25 5×25
net weight kg 125 258 425
 Paking weight kg 200 285 4654
packing size cm      
add 1m load chain N.W (kg/m) 17.6 26.4 30
add 1m hand chain N.W (kg/m) 1.8 1.8 1.8
Dimensions(mm) a 429 533 570
  b 125 150 190
  c 105 105 125
  d 376 373 445
  e 222 220 279
  f 113 109 140
  Hmin 1100 1139 1500

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The Quality comparison of spare parts

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FAQ
Q1. What's information should I provide to get the price?
A:1. Chain quality? 2.the chain size? 3. the working voltage? 4. the machine frequency?

Q2. What's the lead time for regular order?
A: The normal delivery time is 60-120 days. If you have special needs or if the quantity is greater than 1 set, please explain
when making an inquiry. When we quote, we will provide you with accurate delivery time according to the actual situation.

Q3. The space of my workshop is limited, can the machine is ok for me?
A: We have been specializing in European machines for 20 years. Machines are 1 of the biggest features of our products.According to your needs, our designers will tailor-made products suitable for your use.

Q4.Can you provide lifting tools?
A: Yes, we can provide any type of lifting tools such as Manual chain hoists, manual lever chain hoist, electric chains
hoists,chains, slings, hooks, electromagnetics, grabs, beams, etc.non-standard fixtures, etc... Welcome to consult

Q5. Is it OK to print my logo on the product?
A: Yes. Please inform us formally before our production and confirm the design firstly based on our sample.

Q6. Are there any professional technicians to assist our installation?
A: Yes. We have a professional installation team, who has already been to many countries to assist the installation. If you need our technicians to offer this service, please let us know in advance. So that we can arrange the suitable technicians to your country.

Q7. How do you ship the goods and how long does it take to arrive?
A: Small products can be transported by air, and large products can be transported by sea. According to different countries and regions, the specific time will be confirmed according to the actual situation.

Q8. What is your terms of payment?
A: Payment=1000USD, 30% T/T in advance ,balance before shipment. We'll show you the photos or videos of the products and packages before you pay the balance.

Q9. What is your terms of packing?
A: Generally, we pack our goods in neutral wooden boxes. If you have legally registered patent, we can pack the goods in your branded boxes after getting your authorization letters. There is no package of big machines,there are just protective covers.

Q10. Do you test all your goods before delivery?
A: Yes, we have 100% test before delivery

Q11. How to proceed an order for hoist?
A: Firstly let us know your requirements or application:Hoists capacity, chains length and others? Secondly We quote according to your requirements or our suggestions.Thirdly customer confirms the samples and places deposit for formal order. Fourthly We arrange the production.

Q12. Do you offer guarantee for the products?
A: Yes, we offer 1-3 years warranty to our products.
 

The importance of pulleys

A pulley is a wheel that rides on an axle or axle. The purpose of the pulley is to change the direction of the tensioning cable. The cable then transfers the power from the shaft to the pulley. This article explains the importance of pulleys and demonstrates several different uses for this machine. Also, see the Mechanical Advantages section below for the different types. let's start.
pulley

simple machine

A simple pulley machine is a device used to transfer energy. It consists of a wheel with flexible material on the rim and a rope or chain tied to the other end. Then lift the load using the force applied to the other end. The mechanical advantage of this system is one, as the force applied to the load is the same as the force on the pulley shaft.
A simple pulley machine has many benefits, from the ability to build pyramids to building modern buildings with it. Pulleys are also popular with children because they can perform simple tasks such as lifting toys onto a slide, sliding them off the slide, and lifting them up again. These activities, called "transportation" by child development theorists, allow them to learn about the physics of simple machines in the process.
The mechanism works by using cables to transmit force. The cable is attached to 1 side of the pulley and the other side is pulled by the user. Lift the load by pulling on 1 end and the other end of the rope. Simple pulley machines have many commercial and everyday applications, including helping move large objects. They can be fixed or movable, and can be a combination of both. The present invention is a great tool for any beginner or engineer.

axis

The axle wheel is the basic mechanical part that amplifies the force. It may have originally appeared as a tool to lift buckets or heavy objects from a well. Its operation is demonstrated by large and small gears attached to the same shaft. When applied to an object, the force on the large gear F overcomes the force W on the pinion R. The ratio of these 2 forces is called the mechanical advantage.
The ideal mechanical advantage of shaft pulleys is their radius ratio. A large radius will result in a higher mechanical advantage than a small radius. A pulley is a wheel through which a rope or belt runs. Often the wheels are interconnected with cables or belts for added mechanical advantage. The number of support ropes depends on the desired mechanical advantage of the pulley.
In the design of the axle wheel, the axle is the fulcrum and the outer edge is the handle. In simple terms, wheels and axle pulleys are improved versions of levers. The axle pulley moves the load farther than the lever and connects to the load at the center of the axle. Shaft pulleys are versatile and widely used in construction.

rope or belt

Ropes or pulleys are mechanical devices used to move large masses. The rope supports a large mass and can be moved easily by applying a force equal to 1 quarter of the mass to the loose end. Quad pulleys have 4 wheels and provide the mechanical advantage of 4 wheels. It is often used in factories and workshops. It is also a popular choice in the construction industry. If you are installing a pulley in your vehicle, be sure to follow these simple installation instructions.
First, you need to understand the basics of how a rope or pulley works. The machine consists of 1 or more wheels that rotate on an axle. The rope or belt is wrapped around the pulley and the force exerted on the rope is spread around the pulley. It then transfers the force from 1 end of the rope to the other. The pulley system also helps reduce the force required to lift objects.
Another common rope or pulley is the differential pulley. This is similar to a rope pulley, but consists of 2 pulleys of different radii. The tension in the 2 halves of the rope supports half the load that the live pulley should carry. These 2 different types of pulleys are often used together in composite pulley systems.
pulley

Mechanical advantage

The mechanical advantage is the ratio of the force used to move the load through the pulley system to the force applied. It has been used to measure the effectiveness of pulley systems, but it also requires assumptions about applied forces and weights. In a simple 1:1 pulley system, the weight lifting the weight is the same as the weight of the person pulling the weight. Adding mechanical advantage can help make up for the lack of manpower.
This advantage stems from the mechanical properties of simple machines. It requires less force and takes up less space and time to accomplish the same task. The same effect can also be achieved by applying less force at a distance. Furthermore, this effect is called the output force ratio. The basic working principle of a pulley system is a rope with a fixed point at 1 end. The movable pulley can be moved with very little force to achieve the desired effect.
The load can be moved through the vertical entry using a simple pulley system. It can use a simple "pulley block" system with a 2:1 "ladder frame" or a 4:1 with dual pulleys. This can be combined with another simple pulley system to create a compound pulley system. In this case, a simple pulley system is pulling another pulley, giving it a 9:1 mechanical advantage.

Commonly used

You've probably seen pulley systems in your kitchen or laundry room. You probably already use it to hang clothes on an adjustable clothesline. You may have seen motor pulleys in the kitchens of commercial buildings. You might even have seen 1 on a crane. These machines use a pulley system to help them lift heavy loads. The same goes for theaters. Some pulleys are attached to the sides of the stage, enabling the operator to move up and down the stage.
Pulley systems have many uses in the oil and petroleum industry. For example, in the oil and gas industry, pulley systems are used to lay cables. They are arranged in a pulley structure to provide mechanical energy. When the rope is running, 2 pulleys are hung on the derrick to facilitate smooth running. In these applications, pulleys are very effective in lifting heavy objects.
A pulley is a simple mechanical device that converts mechanical energy into motion. Unlike chains, pulleys are designed to transfer power from 1 location to another. The force required to lift an object with a pulley is the same as that required by hand. It takes the same amount of force to lift a bucket of water, but it's more comfortable to pull sideways. A bucket of water weighs the same as when lifted vertically, so it's easy to see how this mechanism can be useful.
pulley

Safety Notice

When using pulleys, you should take several safety precautions to keep your employees and other workers on the job site safe. In addition to wearing a hard hat, you should also wear gloves to protect your hands. Using pulleys can lead to a variety of injuries, so it's important to keep these precautions in mind before using pulleys. Here are some of the most common:
Pulleys are an important piece of equipment to have on hand when lifting heavy objects. Pulleys not only reduce the force required to lift an object, but also the direction of the force. This is especially important if you are lifting heavy objects, such as a lawn mower or motorcycle. Before starting, it is important to make sure that the anchoring system can support the full weight of the object you are lifting.
When using a pulley system, make sure the anchor points are adequate to support the load. Check with the pulley manufacturer to determine the weight it can safely lift. If the load is too large, composite pulleys can be used instead. For vertical lifts, you should use a sprocket set and wear personal protective equipment. Safety precautions when using pulleys are critical to worker health and safety.

China Good quality Hot Sale 20 Ton New Manual Chain Pulley Block   with Free Design CustomChina Good quality Hot Sale 20 Ton New Manual Chain Pulley Block   with Free Design Custom

Crane pulley

As one of the crane pulley manufacturers, suppliers, and exporters of mechanical products, We offer crane pulley and many other products.

Please get in touch with us for details.

Manufacturer supplier exporter of crane pulley.

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