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♦ Manufacturing workshop of screw: Auto-matic high-speed heading  machines, threading machines,sieving machine
 ♦ QC workshop: sclerometer, hardnesstester, Capliper, Microcline, Torsion meter, Salt atmoshere testing machine, Go-No go gauge, Projector, Die gage, image screening instrument
♦ Mold workshop: molds for different drywall screw. These equipment and machines can help produce high quality of screw
Dongguan Jinming Hardware Co., Ltd. is a fastener manufacturer for more than10years. we specialize in designing and producing different standard fasteners, such as: screw, nut , bolt an other fasteners,etc. self tapping screw, drywall screw as well as chipboard screw, as our main product was supplied to every field in the world with 550 million outputs.
Company location | No.305, Fuyuan area, SongMuShan Village, Dalang Town, Dongguan City, GuangDong Province, China |
Company cover | 5000 square meter |
Employee | 80-100 people |
License No. | 441900000253288 |
Equipments | 50 sets |
Any interest, please contact me freely!
screw
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♦ Manufacturing workshop of screw: Auto-matic high-speed heading  machines, threading machines,sieving machine
 ♦ QC workshop: sclerometer, hardnesstester, Capliper, Microcline, Torsion meter, Salt atmoshere testing machine, Go-No go gauge, Projector, Die gage, image screening instrument
♦ Mold workshop: molds for different drywall screw. These equipment and machines can help produce high quality of screw
Dongguan Jinming Hardware Co., Ltd. is a fastener manufacturer for more than10years. we specialize in designing and producing different standard fasteners, such as: screw, nut , bolt an other fasteners,etc. self tapping screw, drywall screw as well as chipboard screw, as our main product was supplied to every field in the world with 550 million outputs.
Company location | No.305, Fuyuan area, SongMuShan Village, Dalang Town, Dongguan City, GuangDong Province, China |
Company cover | 5000 square meter |
Employee | 80-100 people |
License No. | 441900000253288 |
Equipments | 50 sets |
Any interest, please contact me freely!
Tower cranes typically use a combination of fixed and movable pulleys to lift and lower heavy loads. The pulleys are usually attached to the jib or boom of the crane and are used to change the direction and increase the mechanical advantage of the lifting system.
Some common types of pulleys used in tower cranes include:
1. Fixed Pulleys: These are stationary pulleys that are mounted at a fixed point on the crane. They change the direction of the lifting force and help distribute the load evenly.
2. Movable Pulleys: These pulleys are attached to a movable block that can be raised or lowered along the jib or boom of the crane. They provide additional mechanical advantage and allow for easier lifting of heavy loads.
3. Trolley Pulleys: These pulleys are used in conjunction with a trolley system that allows the crane to move horizontally along the jib or boom. The trolley pulleys help distribute the load evenly and provide smooth movement of the crane.
4. Counterweight Pulleys: Tower cranes often use a counterweight system to balance the load being lifted. Counterweight pulleys are used to attach the counterweights to the crane and ensure proper balance and stability.
It's important to note that the specific configuration and number of pulleys used in a Tower Crane can vary depending on the crane model and lifting capacity.
Wire Rope Pulley,Steel Pulley,Tower Crane Nylon Pulley,Tower Crane Pulley,Cable Pulley
SHEN YANG BAOQUAN BUSINESS CO., LTD , https://www.sytopkittowercrane.com