90mm Parallel Twin Screw Barrel and Parallel Double Barrel Screw
BQ supplys two types of Tower Crane Power Cable, YC Electric Power Cable and YCW Insulated Power Cable.
Power Cable is used for heavy industry including mining and marine, they must be robust and capable of handling both torsional and tensile stresses simultaneously. These mobile machines for lifting and handling are often manufactured with a robust rubber outer sheathing to protect against the constant reeling and movement as well as providing protection against oils and greases. Cables with Polyethylene (PUR) and PVC sheathing are also available. The cables are UV resistant – applications such as tower cranes and port loading gantries are subject to the elements – as well as being resistant to oils and greases.
The power cable used for a tower crane is typically a heavy-duty and high-voltage cable to handle the electrical power requirements of the crane. These cables are designed to be durable, flexible, and capable of withstanding harsh weather conditions. They are usually made of materials such as rubber or neoprene for insulation and protection against abrasion, oil, and chemicals. The exact specifications of the power cable may vary depending on the specific model and power requirements of the tower crane.
Crane Electric Cable,Electrical Cable,Tower Crane Cable,Electric Power Cable,Insulated Power Cable SHEN YANG BAOQUAN BUSINESS CO., LTD , https://www.sytoplesstowercrane.com
90mm parallel twin screw barrel and parallel double barrel screw
Specification:
Diameter: Φ 45mm-Φ 200mm
L/D ratio: 16-35
The compression ratio of screws can be designed according to different products and ingredients
Base Materials:
(1)38CrMoAlA(JIS SACM645)
(2)42CrMo(AISI 4140)
(3)4Cr5MoSi V1 (JIS SKD-61)
(4)9Cr18MOV
(5)HPT
Bimetalic alloy materials:
1)Fe-based alloy
2)Ni-based alloy/Deloro alloy
3)Co-based alloy
4)NiCo-based alloy
5)Tungsten carbide/Wolfram carbide
Technics:
Heat treatment
High-frequency quenching
Nitriding treatment
Hard-chrome electroplating
Bimetallic alloy welding
Bimetallic alloy centrifugal casting
Technical parameter:
Nitrided layer depth: 0.5-0.8mm
Nitrided hardness: 900-1000HV
Nitrided brittleness: Less than grade 1
Surface roughness: Ra0.4
Linearity of screw: 0.015mm
Hard-chrome plating hardness after nitriding: ≥ 950HV
Chrome-plating layer depth: 0.025-0.085mm
Bimetallic layer depth: 3mm
Warranty and service: 1 year
We could manufacture various kinds of screws and barrels according to the customer's requirement.
About ZY:
1. Rich strength----We have our own professional teams in the sales, design, production, inspection and customer service areas. We concentrate to bring customers the most perfect customer experiences.
2. High-quality products----We adopt a series of advanced production and processing equipments such as CNC machines, Stellite PTA welding machines to ensure the quality of our products.
3. Large international market----We do foreign trade more than 5 years, we have a set of mature foreign trade system, our customers are all over the world. We will continue to expand our international market.
4. Location advantage----We are located in China's screw town----Jintang town, Zhoushan city, near to Ningbo Port and Shanghai Port.
5. Serious and responsible attitude----Over the years, we always maintain a serious, professional and responsible attitude, make our best efforts to meet customers' demands.
Welcome to contact us~!