A telescoping hydraulic system is an essential component of a Tower Crane. It allows the crane to extend and retract its boom, enabling it to reach different heights and distances. This system consists of several hydraulic cylinders, valves, and hoses that work together to provide the necessary power and control.
The main hydraulic cylinder in the telescoping system is responsible for extending and retracting the boom. It is typically a double-acting cylinder, meaning it can generate force in both directions. This cylinder is connected to the base of the crane and extends vertically to support the boom. Hydraulic Pump Station,Telescoping Cage,Tower Crane Cylinder,Axial Plunger Pump,hydraulic pump unit SHEN YANG BAOQUAN BUSINESS CO., LTD , https://www.syconstructionhoist.com
Screws are generally called wood screws; is the tip of the kind of tip, pitch larger, generally used to tighten wood parts, plastic parts. Mechanical screws, is the front of the kind of screws, the pitch is small, uniform, generally used to fasten the metal, machine parts.Our products has high quality,and long life time.Our  company has passed ISO9001, ISO9001 (CQC) certification, product quality assurance.
Screw application range:
1> stainless steel plate, metal plate, galvanized steel plate, engineering installation.
2> metal curtain wall metal light compartment and other indoor and outdoor installation.Â
3> General angle steel, channel steel, iron plate and other metal materials combined installation.Â
4> car trunk, container box, shipbuilding, refrigeration equipment and other assembly works.
5> automobile engine, heavy machinery, garden machinery, petrochemical.
6> aerospace, energy, machinery, chemical, military, metallurgy, mold, hydraulic.
7> motorcycles, sports equipment, cars and many other industries.
8> electronics, electrical appliances, motors, lighting, communications, home appliances, furniture.
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Brand  name
CHANGCHUN
Model
CC-418
Type
Machine screw
Head  Type
Cylindrical head
Groove type
Hexgon
Screw diametre
8mm
Screw Length
105mm
Application
Hand twist
Screw size
M12
Thread tolerance
6G
Nominal length
110mm
Surface
Galvanized
Material grade
Carbon steel 45H
Product grade
A
Standard type
National
Standard number
GB-CC-418
Customized
Yes
Specification
CC-418
Material
Heat treatment
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Shipping and packaging
 Via Ocean shipping
North America, South America about 40 working days
Eastern Europe about 30-40 working days
Southeast Asia about 20-30working days
Africa about 35-45 working days
India, Pakistan about 40 working days
Korea, Japan about 40 working days
Air transport
Other places around 1-3 business days
Packaging: boxes, cartons or plastic bags, or according to customer needs.
Sample serviceÂ
If  you need  sample,you need pay  the  freight.
Customer Service
· 1. No question refund within 3 days.Â
· 2. Well trained and experienced staffs at your service.Â
· 3. Short lead time.Â
· 4. International standard matched
· 5. Non-standard / standard / OEM / ODM / customized service provided.Â
· 6. Small Quantity available.Â
· 7. Designed in accordance with customers' request.Â
· 8. Packed and delivered by customers' requirement.
Any more questions or demands, please feel free to contact us.
TEL:+86-0562-668-1767
Our factory]
GB/T 65-2000Â Â Â Â Â Â Â Â Â Â
GB/T 67-2000
GB/T 68-2000
GB/T 69-2000
GB/T 70.1-200
 GB/T 70.2-2000
 GB/T 70.3-2000
 GB  71-85
 GB-72-88
 GB-73-85
 GB-74-85
 GB-75-85
 GB/T 77-2000
 GB/T 78-2000
 GB/T 79-2000
 GB/T 80-2000
 GB 83-88
 GB 84-88
 GB 85-88
 GB 86-88
 GB/T 818-2000
 GB 838-88
 GB 839-88
 GB 840-88
 GB 946-88
 GB 947-88
 GB 948-88
 GB 949-88 Â
 GB 2672-86
 GB 2673-86             Â
 GB 2674-86
 GB 5281-86   Â
GB/T 820-2000
GB/T 821-88
 GB/T 822-2000
 GB 823-88
 GB 825-88
 GB 828-88
 GB 829-88
 GB 830-88
 GB 831-88
 GB 832-88
 GB 833-88
 GB 834-88
 GB 835-88
 GB 836-88
GB 13-88
GB 14-1998
GB 15-88
GB 29.2-88
GB 35-88
GB 37-88
GB /T794-93
GB 798-88
GB 799-88
GB 800-88
DIN 125-A Â GB 971-85
DIN 125-B Â GB97.2-85
DIN127-A Â Â GB7244
DIN 127-B Â GB93-87
DIN 912 Â Â GB70-85
DIN933 Â Â GB-5783-86
DIN931 Â Â GB5782-86
DIN934 Â Â GB6170-86
                     Inner hexagon socket  carbon steel  screw Â
Screws are generally called wood screws; is the tip of the kind of tip, pitch larger, generally used to tighten wood parts, plastic parts. Mechanical screws, is the front of the kind of screws, the pitch is small, uniform, generally used to fasten the metal, machine parts.Our products has high quality,and long life time.Our  company has passed ISO9001, ISO9001 (CQC) certification, product quality assurance.
Screw application range:
1> stainless steel plate, metal plate, galvanized steel plate, engineering installation.
2> metal curtain wall metal light compartment and other indoor and outdoor installation.Â
3> General angle steel, channel steel, iron plate and other metal materials combined installation.Â
4> car trunk, container box, shipbuilding, refrigeration equipment and other assembly works.
5> automobile engine, heavy machinery, garden machinery, petrochemical.
6> aerospace, energy, machinery, chemical, military, metallurgy, mold, hydraulic.
7> motorcycles, sports equipment, cars and many other industries.
8> electronics, electrical appliances, motors, lighting, communications, home appliances, furniture.
Â
Brand  name
CHANGCHUN
Model
CC-418
Type
Machine screw
Head  Type
Cylindrical head
Groove type
Hexgon
Screw diametre
8mm
Screw Length
105mm
Application
Hand twist
Screw size
M12
Thread tolerance
6G
Nominal length
110mm
Surface
Galvanized
Material grade
Carbon steel 45H
Product grade
A
Standard type
National
Standard number
GB-CC-418
Customized
Yes
Specification
CC-418
Material
Heat treatment
Â
Â
Â
Â
Shipping and packaging
 Via Ocean shipping
North America, South America about 40 working days
Eastern Europe about 30-40 working days
Southeast Asia about 20-30working days
Africa about 35-45 working days
India, Pakistan about 40 working days
Korea, Japan about 40 working days
Air transport
Other places around 1-3 business days
Packaging: boxes, cartons or plastic bags, or according to customer needs.
Sample serviceÂ
If  you need  sample,you need pay  the  freight.
Customer Service
· 1. No question refund within 3 days.Â
· 2. Well trained and experienced staffs at your service.Â
· 3. Short lead time.Â
· 4. International standard matched
· 5. Non-standard / standard / OEM / ODM / customized service provided.Â
· 6. Small Quantity available.Â
· 7. Designed in accordance with customers' request.Â
· 8. Packed and delivered by customers' requirement.
Any more questions or demands, please feel free to contact us.
TEL:+86-0562-668-1767
Our factory]
GB/T 65-2000Â Â Â Â Â Â Â Â Â Â
GB/T 67-2000
GB/T 68-2000
GB/T 69-2000
GB/T 70.1-200
 GB/T 70.2-2000
 GB/T 70.3-2000
 GB  71-85
 GB-72-88
 GB-73-85
 GB-74-85
 GB-75-85
 GB/T 77-2000
 GB/T 78-2000
 GB/T 79-2000
 GB/T 80-2000
 GB 83-88
 GB 84-88
 GB 85-88
 GB 86-88
 GB/T 818-2000
 GB 838-88
 GB 839-88
 GB 840-88
 GB 946-88
 GB 947-88
 GB 948-88
 GB 949-88 Â
 GB 2672-86
 GB 2673-86             Â
 GB 2674-86
 GB 5281-86   Â
GB/T 820-2000
GB/T 821-88
 GB/T 822-2000
 GB 823-88
 GB 825-88
 GB 828-88
 GB 829-88
 GB 830-88
 GB 831-88
 GB 832-88
 GB 833-88
 GB 834-88
 GB 835-88
 GB 836-88
GB 13-88
GB 14-1998
GB 15-88
GB 29.2-88
GB 35-88
GB 37-88
GB /T794-93
GB 798-88
GB 799-88
GB 800-88
DIN 125-A Â GB 971-85
DIN 125-B Â GB97.2-85
DIN127-A Â Â GB7244
DIN 127-B Â GB93-87
DIN 912 Â Â GB70-85
DIN933 Â Â GB-5783-86
DIN931 Â Â GB5782-86
DIN934 Â Â GB6170-86
To control the movement of the hydraulic cylinder, various valves are used. These valves regulate the flow of hydraulic fluid into and out of the cylinder, allowing for precise control of the boom's extension and retraction. The valves are typically operated by the crane operator using a control panel or joystick.
The hydraulic system also includes hoses that connect the cylinders and valves. These hoses transport the hydraulic fluid, which is typically oil, between the different components. The hoses must be durable and able to withstand high pressure to ensure the safe and efficient operation of the crane.
In addition to the main hydraulic cylinder, there may be secondary cylinders in the telescoping system that provide additional support and stability to the boom. These cylinders are typically smaller and are used to fine-tune the position and angle of the boom.
DIN/ANSI/BS/JIS Carbon-Steel/Stainless-Steel Hexagon Beam Double Rod Machine Screws
Model NO.: CC-418
Available Material: Carbon Steel
OEM: Accepted
Certificate: ISO9001,ISO9001(CQC)
Mode of Action: Self-Drilling
Surface Treatment: Galvanized
Trademark: CC
Transport Package: General Export Package/Require to Customer
Specification: M2-M16
Origin: China
HS Code: 7318150000
Model NO.: CC-418
Available Material: Carbon Steel
OEM: Accepted
Certificate: ISO9001,ISO9001(CQC)
Mode of Action: Self-Drilling
Surface Treatment: Galvanized
Trademark: CC
Transport Package: General Export Package/Require to Customer
Specification: M2-M16
Origin: China
HS Code: 7318150000
                     Inner hexagon socket  carbon steel  screw Â