Product Description

G80 Lifting Screw Point

     

Specifications
1. Material: Super Alloy Steel
2. Size: M8 – M64
3. Surface: Powder Coated
4. Working Load: 0.3 Ton – 25 Ton
5. Color: Red, Yellow, Bule, etc.
6. Technology: Drop forged, Quenched, Tempered
7. Certificates: BV, ISO9001:2008 SGS, CE
8. Brand: Powerful Machinery

ITEM CODE	WEIGHT	WLL(T)(4:1)		D X E	B	C	G	T	A	W	N	H	S
	KG	WLL 90°	WLL 0°	MM	MM	MM	MM	MM	MM	MM	MM	MM	MM
M8	0.41	0.3	0.6	M8X13	36	16.5	51	41	55	30	14	3	1
M10	0.43	0.5	0.9	M10X18	36	16.5	51	41	55	30	14	3	1
M10X90	0.38	0.5	1	M10X90	36	16.5	51	41	55	30	14	3	1
M12	0.44	0.5	1	M12X18	36	16.5	51	41	55	30	14	3	1
M12X40	0.52	0.5	1	M12X40	36	16.5	51	41	55	30	14	3	1
M12X45	0.47	0.5	1	M12X45	36	16.5	51	41	55	30	14	3	1
M12X110	0.53	0.5	1	M12X110	36	16.5	51	41	55	30	14	3	1
M14	0.45	1.12	2	M14X20	36	16.5	51	41	55	30	14	3	1
M16	0.46	1.12	2	M16X35	36	16.5	52	42	55	30	14	3	1
M16X40	0.48	1.12	2	M16X40	36	16.5	52	42	55	30	14	3	1
M16X100	0.54	1.12	2	M16X100	36	16.5	52	42	55	30	14	3	1
M16X120	0.6	1.12	2	M16X120	36	16.5	52	42	55	30	14	3.5	1
M20	0.96	2	4	M20X30	49.5	19	68	56	70	35	16	3.5	1
M20X120	1.17	2	4	M20X120	49.5	19	68	56	70	35	16	3.5	1
M24	1.45	3.15	6.3	M24X40	57	22	78	65.5	85	40	18	3.5	1.5
M24X40	1.42	3.15	6.3	M24X90	57	22	78	65.5	85	40	18	3.5	1.5
M24X90	1.66	3.15	6.3	M24X90	57	22	78	65.5	85	40	18	3.5	1.5
M24X120	1.74	3.15	6.3	M24X120	57	22	78	65.5	85	40	18	3.5	1.5
M27	1.47	3.15	6.3	M27X35	57	22	78	65.5	85	40	20	3.5	1.5
M30(5T)	2.17	5.3	10.6	M30X35	66	23.5	96.5	80.5	85	40	20	4	1.5
M30X38	2.18	5.3	10.6	M30X38	66	23.5	96.5	80.5	85	40	20	4	1.5
M30X120	2.65	5.3	10.6	M30X120	66	23.5	96.5	80.5	85	40	22	4	1.5
M30(8T)	3.57	8	11.8	M30X35	80	28	112	92	115	50	22	6	2
M30X38	3.58	8	11.8	M30X38	80	28	112	92	115	50	22	6	2
M30X120	4.01	8	11.8	M30X120	80	28	112	92	115	50	22	6	2
M36X90	4.17	8	11.8	M36X90	80	27	109	89.5	115	50	22	6	2
M36X400	6.41	8	11.8	M36X400	80	27	109	89.5	115	50	22	6	2
M39	3.65	8	11.8	M39X50	80	27	109	89.5	115	50	22	6	2
M39X90	3.71	8	11.8	M39X90	80	27	109	89.5	115	50	22	6	2
M42	3.62	10	15	M42X50	80	27	109	89.5	115	50	25	6	2.5
M42X60	6.72	10	15	M42X60	80	27	109	89.5	115	50	25	6	2.5
M42X130	4.46	10	15	M42X130	80	27	109	89.5	115	50	25	6	2.5
M42X180	5	10	15	M42X180	80	27	109	89.5	115	50	25	6	2.5
M45X60	4.17	10	15	M45X60	80	27	109	89.5	115	50	25	6	2.5
M48	4.02	10	15	M48X50	80	27	109	89.5	115	50	25	6	2.5
M48X110	4.8	10	15	M48X110	80	27	109	89.5	115	50	25	6	2.5
M56X84	11.6	15	25	M56X84	117	42	310	280	152	70	32	7	2.5
M64X95	12.4	15	25	M64X95	117	42	310	280	152	70	32	7	2.5

Related Products
Eye Bolt DIN580, Eye Nut DIN582, BS4278 Collared Eye Bolt, BS529 Collared Eye Bolt, JIS B 1168 Eye Bolt, JIS B 1169 Eye Nut,
G291 Drop Forged Eye Bolt, G80 Lifting Screw Point, Rectangular Base Eye Plates, etc.

Packaging

Hot Sale Products

Our most popular products include Chains, Anchor Chains, Hooks, Shackles, Turnbuckles, Load Binders, Eye Bolts & Eye Nuts, Wire Rope, Wire Rope Clips, Wire Rope Thimble, Swivels, Snap Hook, Rings and links, Webblings, Pulley&Block, Sockets, Stainless Steel Products, etc.

NOTE
*The sizes are various.
*Customized service is available. 
*The materials can be high quality Carbon Steel, Alloy Steel, Stainless Steel, Plastic, Polyester Fibre, etc.

Our Factory

We started as an anchor chain factory, CZPT Anchor Chain Co. Ltd, about 20 years ago in HangZhou, China, and gradually developed into a big manufacturer of marine hardware supplies.  At the same time, in order to meet the growing demands from our clients in various business areas, we established our tradingbrand – Powerful Machinery, and expanded our scope to rigging hardware and fasteners, and also set up solid partnership with other factories.    

Now we’re proud to say that CZPT has ranked as the top supplier on marine & rigging hardware in the northern China!

Our Office

HangZhou CZPT Co., Ltd has eastablished for about 11 years, we specializing in producing and exporting rigging hardwares, high grade chains, blocks & pulleys, steel wire rope, stainless steel and so on. Our products are all designed, manufactured and assembled under strict quality control. We have a professional QC team to do inspections.  And we can offer favorable prices, good quality and one-stop sourcing service. We are all ready for every customer and to be the pioneer is our mission.

All members of our company will be very honored if you contact us. We are looking forward to cooperating with you in the near future!

Exhibitions

Powerful Machinery   FAQ

1.Are you a factory or trading company?
We started as an anchor chain factory about 20 years ago and gradually developed into a big manufacturer in marine supplies.At the same time, to meet the growing demands from our clients in new business areas, we expanded our scope to rigging hardware and fasteners, and other related hardware by setting up solid partnership with other factories.Now we’re proud to say that POWERFUL has ranked as a top supplier on chains & rigging hardware in China.

2.Where is your factory located?
Our factory is located at #37, Wenhua Road, Xihu (West Lake) Dis., HangZhou City, ZheJiang Province, China.
You’re welcomed to visit us any time for future cooperation.

3.What products do you supply?
As mentioned above, HangZhou CZPT is capable of supplying:
All kinds of marine supplies, Chains, Rigging hardwares, Fasteners and related hardwares

4.Do you produce them all?
We produce all kinds of chains in our factory, other products in our partner factories.By establishing cooperation agreements & capital injection, we obtained a wide & solid supply chain to meet your demands.

5.How do you control quality?
By setting up quality control points and inspecting at each production process with strict standards, the defective products will be eliminated before packaging and delivery.For partner factories, we use a comprehensive system of quality standards to evaluate the production line.Also our professional QC team will implement the onsite check and finish product check before delivery.

6.Why are you more trustworthy than the other factories?
Quick Response:
We feedback your questions immediately 24 hours a day, 7 days every week.
Competitive Price:
We can provide a more competitive price based on the same quality level by more efficient management in every process.
One-stop Solution:
Just say what you need, and we’ll figure out a one-stop solution for your business to save your time and effort.

7.How do I pay?
We accept 30% payment in advance & 70% before shipment for the first cooperation, either by T/T or L/C.

8.How do I receive the goods?
With our professional transport agents, we are capable of delivery products to most ports all over the world.Door-to-door service is also supported.
FOB, C&F, CIF are most commonly used trade terms.

Our Advantages

1. Quick Response:
Reply your inquiry in 24 working hours.
2. Full English Service:
Experienced staff answer all of your questions in professional and fluent English.
3. OEM & ODM:
Customized size, length and design are available.
4. Creative One-Stop Solutions:
Exclusive and unique solution can be provided to our customer by our well-trained and professional engineers. 

 

We Listen, We Learn & We Love our Costumers!
Best Service, Best Quality & Best Price will be offered!

Screws and Screw Shafts

A screw is a mechanical device that holds objects together. Screws are usually forged or machined. They are also used in screw jacks and press-fitted vises. Their self-locking properties make them a popular choice in many different industries. Here are some of the benefits of screws and how they work. Also read about their self-locking properties. The following information will help you choose the right screw for your application.

Machined screw shaft

A machined screw shaft can be made of various materials, depending on the application. Screw shafts can be made from stainless steel, brass, bronze, titanium, or iron. Most manufacturers use high-precision CNC machines or lathes to manufacture these products. These products come in many sizes and shapes, and they have varying applications. Different materials are used for different sizes and shapes. Here are some examples of what you can use these screws for:
Screws are widely used in many applications. One of the most common uses is in holding objects together. This type of fastener is used in screw jacks, vises, and screw presses. The thread pitch of a screw can vary. Generally, a smaller pitch results in greater mechanical advantage. Hence, a machined screw shaft should be sized appropriately. This ensures that your product will last for a long time.
A machined screw shaft should be compatible with various threading systems. In general, the ASME system is used for threaded parts. The threaded hole occupies most of the shaft. The thread of the bolt occupy either part of the shaft, or the entire one. There are also alternatives to bolts, including riveting, rolling pins, and pinned shafts. These alternatives are not widely used today, but they are useful for certain niche applications.
If you are using a ball screw, you can choose to anneal the screw shaft. To anneal the screw shaft, use a water-soaked rag as a heat barrier. You can choose from 2 different options, depending on your application. One option is to cover the screw shaft with a dust-proof enclosure. Alternatively, you can install a protective heat barrier over the screw shaft. You can also choose to cover the screw shaft with a dust-proof machine.
If you need a smaller size, you can choose a smaller screw. It may be smaller than a quarter of an inch, but it may still be compatible with another part. The smaller ones, however, will often have a corresponding mating part. These parts are typically denominated by their ANSI numerical size designation, which does not indicate threads-per-inch. There is an industry standard for screw sizes that is a little easier to understand.

Ball screw nut

When choosing a Ball screw nut for a screw shaft, it is important to consider the critical speed of the machine. This value excites the natural frequency of a screw and determines how fast it can be turned. In other words, it varies with the screw diameter and unsupported length. It also depends on the screw shaft’s diameter and end fixity. Depending on the application, the nut can be run at a maximum speed of about 80% of its theoretical critical speed.
The inner return of a ball nut is a cross-over deflector that forces the balls to climb over the crest of the screw. In 1 revolution of the screw, a ball will cross over the nut crest to return to the screw. Similarly, the outer circuit is a circular shape. Both flanges have 1 contact point on the ball shaft, and the nut is connected to the screw shaft by a screw.
The accuracy of ball screws depends on several factors, including the manufacturing precision of the ball grooves, the compactness of the assembly, and the set-up precision of the nut. Depending on the application, the lead accuracy of a ball screw nut may vary significantly. To improve lead accuracy, preloading, and lubrication are important. Ewellix ball screw assembly specialists can help you determine the best option for your application.
A ball screw nut should be preloaded prior to installation in order to achieve the expected service life. The smallest amount of preload required can reduce a ball screw’s calculated life by as much as 90 percent. Using a lubricant of a standard grade is recommended. Some lubricants contain additives. Using grease or oil in place of oil can prolong the life of the screw.
A ball screw nut is a type of threaded nut that is used in a number of different applications. It works similar to a ball bearing in that it contains hardened steel balls that move along a series of inclined races. When choosing a ball screw nut, engineers should consider the following factors: speed, life span, mounting, and lubrication. In addition, there are other considerations, such as the environment in which the screw is used.

Self-locking property of screw shaft

A self-locking screw is 1 that is capable of rotating without the use of a lock washer or bolt. This property is dependent on a number of factors, but 1 of them is the pitch angle of the thread. A screw with a small pitch angle is less likely to self-lock, while a large pitch angle is more likely to spontaneously rotate. The limiting angle of a self-locking thread can be calculated by calculating the torque Mkdw at which the screw is first released.
The pitch angle of the screw’s threads and its coefficient of friction determine the self-locking function of the screw. Other factors that affect its self-locking function include environmental conditions, high or low temperature, and vibration. Self-locking screws are often used in single-line applications and are limited by the size of their pitch. Therefore, the self-locking property of the screw shaft depends on the specific application.
The self-locking feature of a screw is an important factor. If a screw is not in a state of motion, it can be a dangerous or unusable machine. The self-locking property of a screw is critical in many applications, from corkscrews to threaded pipe joints. Screws are also used as power linkages, although their use is rarely necessary for high-power operations. In the archimedes’ screw, for example, the blades of the screw rotate around an axis. A screw conveyor uses a rotating helical chamber to move materials. A micrometer uses a precision-calibrated screw to measure length.
Self-locking screws are commonly used in lead screw technology. Their pitch and coefficient of friction are important factors in determining the self-locking property of screws. This property is advantageous in many applications because it eliminates the need for a costly brake. Its self-locking property means that the screw will be secure without requiring a special kind of force or torque. There are many other factors that contribute to the self-locking property of a screw, but this is the most common factor.
Screws with right-hand threads have threads that angle up to the right. The opposite is true for left-hand screws. While turning a screw counter-clockwise will loosen it, a right-handed person will use a right-handed thumb-up to turn it. Similarly, a left-handed person will use their thumb to turn a screw counter-clockwise. And vice versa.

Materials used to manufacture screw shaft

Many materials are commonly used to manufacture screw shafts. The most common are steel, stainless steel, brass, bronze, and titanium. These materials have advantages and disadvantages that make them good candidates for screw production. Some screw types are also made of copper to fight corrosion and ensure durability over time. Other materials include nylon, Teflon, and aluminum. Brass screws are lightweight and have aesthetic appeal. The choice of material for a screw shaft depends on the use it will be made for.
Shafts are typically produced using 3 steps. Screws are manufactured from large coils, wire, or round bar stock. After these are produced, the blanks are cut to the appropriate length and cold headed. This cold working process pressudes features into the screw head. More complicated screw shapes may require 2 heading processes to achieve the desired shape. The process is very precise and accurate, so it is an ideal choice for screw manufacturing.
The type of material used to manufacture a screw shaft is crucial for the function it will serve. The type of material chosen will depend on where the screw is being used. If the screw is for an indoor project, you can opt for a cheaper, low-tech screw. But if the screw is for an outdoor project, you’ll need to use a specific type of screw. This is because outdoor screws will be exposed to humidity and temperature changes. Some screws may even be coated with a protective coating to protect them from the elements.
Screws can also be self-threading and self-tapping. The self-threading or self-tapping screw creates a complementary helix within the material. Other screws are made with a thread which cuts into the material it fastens. Other types of screws create a helical groove on softer material to provide compression. The most common uses of a screw include holding 2 components together.
There are many types of bolts available. Some are more expensive than others, but they are generally more resistant to corrosion. They can also be made from stainless steel or aluminum. But they require high-strength materials. If you’re wondering what screws are, consider this article. There are tons of options available for screw shaft manufacturing. You’ll be surprised how versatile they can be! The choice is yours, and you can be confident that you’ll find the screw shaft that will best fit your application.