The product name specification material steel factory/origin price (yuan/ton) is higher than yesterday's last week than the previous month Pu line Φ6.5mm Q235 Tonggang 4300 0 0 -160 Pu line Φ6.5mm Q235 Siping red beak 4270 0 0 -160 High line Φ6.5mm Q235 Tong Steel 4360 0 0 -160 High Line Φ10mm Q235 Tong Steel 4360 0 0 -160 High Line Φ8mm Q335 Beitai 4360 0 0 -160 Rebar Φ12mm HRB335 Tong Steel 4350 0 0 -100 Rebar Φ14mm HRB335 Tong Gang 4350 0 0 -100 Rebar Φ16-25mm HRB335 Linggang 4270 0 0 -100 Rebar Φ16-25mm HRB335 Tonghua 4270 0 0 -100 Rebar Φ16-25mm HRB335 Beitai 4270 0 0 -100 Rebar Φ16-25mm HRB335 Xilin 4270 0 0 -100 Rebar Φ8-10mm HRB400 New Fushun Steel 4570 0 0 -10 Rebar Φ8-10mm HRB400 Tonghua 4570 0 0 -10 Hot Roll 2.0*1250*C Q235 Tong Steel 5060 0 -20 130 Hot Roll 2.3*1250*C Q235 Tong Steel 4930 0 -20 150 Hot Roll 2.75*1250*C Q235 Angang 4830 0 -20 100 Hot Roll 3.0*1250*C Q235 Angang 4780 0 -20 50 Hot Roll 3.0*1250* C Q235 Bengang 4780 0 -20 50 Hot rolled coil 4.0*1250*C Q235 Angang 4550 0 -50 20 Hot rolled coil 4.75*1250*C Q235 Angang 4550 0 -50 20 Hot rolled coil 5.5*1500*C Q235 Tong Steel 4550 0 -50 2 0 Hot rolled coil 5.5*1500*C Q235 coated steel 4550 0 -50 20 Hot rolled coil 6.5*1250*C Q235 Benxi Steel 4550 0 -50 20 Hot rolled coil 7.5*1250*C Q235 Ben Steel 4550 0 -50 20 Cold Rolled plate 1.0*1000*2000mm Q195 Angang 5750 0 0 200 Cold rolled plate 1.0*1250*2500mm Q195 Benxi Steel 5650 0 0 100 Cold rolled plate 2.0*1250*2500mm Q195 Angang 5650 0 0 200 Cold rolled coil 3.0*1000*2000 Q195 Benxi Steel 5750 0 0 150 Puzhong Plate 8mm Q235 Jigang 5830 0 0 80 Puzhong Plate 8mm Q235 Angang 5830 0 0 80 Puzhong Plate 10mm Q235 Angang 5330 0 0 80 Puzhong Plate 10mm Q235 Jinan Steel 5330 0 0 80 Pu Medium plate 16-20mm Q235 Angang 5080 0 0 80 Medium plate 16-20mm Q235 Sky steel 5080 0 0 80 Low alloy plate 8mm Q345 Angang 5930 0 0 80 Low alloy plate 10mm Q345 Angang 5430 0 0 80 Low alloy plate 14mm Q345 Angang 5280 0 0 80 Pattern Plate 3mm Q235 Angang Steel 4820 0 0 -50 Pattern Plate 4mm Q235 Angang 4800 0 0 -50 Pattern Plate 5mm Q235 Angang 4800 0 0 -50 Pattern Plate 6mm Q235 Angang 4750 0 0 -50 Container Plate 8mm 16MnR Angang 6180 0 0 0 Container Plate 10mm 16MnR Shougang 6100 0 0 0 Container Plate 12-20mm 16MnR Shougang 6000 0 0 Boiler Plate 8mm 20g Jinan Steel 6130 0 0 0 Boiler Plate 12mm 20g Jinan Steel 5980 0 0 0 Boiler Plate 20mm 20g Angang Steel 5880 0 0 0 Tin Plate 0.21mm*1024*712 T57E WISCO 9100 0 0 0 Tin Plate 0.25mm*1024*712 T57E WISCO 9000 0 0 Color Coil 0.5mm*1000* C TST01 Baosteel 7300 0 0 0 Color Coil 0.6mm*1000*C TST02 Baosteel 7350 0 0 0 Galvanized coil 0.5mm*1000*C SGCC Hengtong 5950 0 0 150 Galvanized coil 1.0mm*1000*C ST02Z Bengang 5450 0 0 70 Seamless tube 60*4mm 20# Angang 5700 0 0 0 Seamless tube 108*4.5mm 20# Angang 5650 0 0 Seamless tube 133*4.5mm 20# Angang 5650 0 0 0 Seamless tube 159*5mm 20# Angang 5650 0 0 0 Welded pipe 1.5 inch *3.0mm Q235 Linggang 4870 0 -230 -230 Welded pipe 2 inch *3.25mm Q235 Linggang 4870 0 -230 -230 Welded pipe 3 inch *3.25mm Q235 Linggang 4870 0 -230 -230 I-beam 12-16# Q235 A-steel 4350 0 0 0 I-beam 25# Q235 Angang 4550 0 0 0 Channel 16# Q235 Angang 4400 0 0 Channel 25# Q235 Large-rolled / 0 0 0 Angle 50 *5mm Q235 Tong Steel 4250 0 0 0 Angle Steel 100*100mm Q235 Tong Steel 4250 0 0 0
Telescoping Hydraulic System
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.
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.
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