Description
1. The purchase of hooks shall be used by technical documents such as the certificate of the manufacturer;The lifting hook, such as railway, port, etc., must be strictly inspected (inspection).
2. The lifting hook shall not have any defects affecting the safe use performance;The hook defects shall not be welded;The hook surface should be smooth, no crack, fold, sharp Angle, burr, crack, overburn.
3. Select two suitable positions at the shortest distance of the hook opening to print the non-wearing signs, measure the distance of the sign, and use it as the basis for detecting the change of opening degree in the use.
4. The lifting hook materials can be made of 20 high quality carbon steel or lifting hook special materials DG20Mn, DG34CrMo, etc. It is strictly prohibited to use casting hooks.Plate hook materials are generally used for A3, C3 ordinary carbon steel, or 16Mn low alloy steel
5. The technical conditions of the homemade hooks shall conform to the stipulations of GB 10051-88 ~ GB 10051.5-88 (new standard: gb10051.1-2010 ~ GB 10051.5-2010)
6. The longitudinal axis of the plate hook plate must be in the rolling direction of the steel plate, and the hook plate is not allowed to be spliced.
7. The plate hook and hook plate shall be riveted by the head rivet, and the high-stress bending parts of the hook and lifting objects shall not be connected with rivets.
8. No closed welding shall be allowed between sheet hook lamination, only intermittent welding is allowed.
9. The lifting hook that has already carried over the overload test should be scrapped.
SYM Hoist&Tower Crane Equipment is the professional crane and lift platform manufacturer in China . We supply all kinds of original spare parts for tower crane.
We design,manufacture,installation,repair ,maintenance, trade and export following products:
>TopKit Tower Cranes, Topless Tower Cranes, Building Hoists etc.
>Mast section,Fixing Angle,Cabin,Electrical Parts etc.
Our Advantages
1) 100% originals parts
2) More 20+ experience
3) Protect the rights of our clients, from pre-sales to after-sales process
FAQ
Q1: Are you a trading company or a factory?
A1: We are factory.
Q2: How about the installation?
A2: Engineer could be sent to your site for installing and inspection.
Q3: How long is your delivery time?
A3:Generally 7-15 days after advance payment.
Q4: Do you test all your goods before delivery?
A4: Yes, we have 100% test before delivery.
Q5: Is it convenient to see visit your factory ?
A5: Yes,we welcome every customer to visit our company. We also supply to visit our factory by live stream.
Q6: What certificates do you have?
A6: CE, TUV, ISO9001
Q7: What info should I provide with the inquiry?
A7: Quantity,Model
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