China Tower Crane Pin Bolt Nut

Pins
Pins diameterFit crane typetypematerials50mmL44A1, L46A1Galavanized/ parkerizing35CrMo55mmL68A1, L68B1, L68B2Galavanized/ parkerizing35CrMoAssembling the mast panels,connect the mast secion with section or basic mast,we use pins.for the 1.6m mast section ,we use 50mm diameter pin,for the 2m mast secion,we use 55mm diameter pin.

FAQ
1.the principle of the telescoping
The telescoping sequence comprises a series of operations which are repeated seveval times.
Lifting the crane part to be telescoped by extracting the ram which rests on the telescoping yoke. Resting the lifted crane part on the lugs of the mast by means of the locking pawls of the telescoping cages.
Unpin in and raise the telescoping yoke by retracting the ram.
Connect the yoke on the next pair of the lugs above.
Repeat this cycle 3 times so as to have the space required for introducing the mast section into the telescopic cage.
2.how many years have you invovled in this field?
We have been working in this field more than 20 years.
3.What is the warranty term of your product?
the warranty term of our product is 12month
4.What is the shipping way?
It depands on yours.by sea or air
5.Can you accept OEM or ODM?
Of course.Logo is also acceptable.
FAQ and contact
Q: Are you trading company or manufacturer ?
A: We are trading company, but we have very good and long term cooperations with many leading manufacturers in tower crane and passenger hoist field in China.
Q: How long is your delivery time?
A: Generally it is 5-10 days if the goods are in stock. or it is 15-20 days if the goods are not in stock, it is according to the product category and quantity.
Q: Do you provide samples ?
A: In this field, we seldom provide samples, but it depands.
Q: What is your terms of payment ?
We do TT most, but we can also do L/C and west union for you.
If you have another question, pls feel free to contact us as below: