Crane Spring Hydraulic Cylinder

Crane Spring Hydraulic Cylinder

A crane spring hydraulic cylinder is a type of hydraulic cylinder that uses a spring to return the piston to its original position when the hydraulic pressure is released. This type of cylinder is commonly used in cranes and other lifting equipment where it is important to have a fail-safe mechanism in case of hydraulic failure.

The spring hydraulic cylinder consists of a cylinder barrel, a piston, a piston rod, and a spring. The cylinder barrel is filled with hydraulic fluid. When hydraulic pressure is applied to the piston, it moves forward, extending the piston rod. When the hydraulic pressure is released, the spring returns the piston to its original position, retracting the piston rod.

Crane spring hydraulic cylinders are available in a variety of sizes and configurations to meet the specific requirements of different applications. They are typically made from high-strength materials such as steel or aluminum to withstand the high pressures and forces involved in lifting operations.

The main advantages of crane spring hydraulic cylinders are their simplicity, reliability, and cost-effectiveness. They are also relatively easy to maintain and repair. However, they are not as efficient as double-acting hydraulic cylinders, which can extend and retract the piston rod in both directions using hydraulic pressure.

Crane Spring Hydraulic Cylinder Dimensions:

Cylinder Name	Drawing number	Bore diameter (D)	Rod diameter (d)	Stroke (S)	Installation distance (L)	Working pressure	Interface dimensions (M)	Weight
Spring cylinder	ZXYG24.01-00	Φ63	Φ32	25	267	4MPa	G1/4	6.5kg

Crane Spring Hydraulic Cylinder Working Principle:

A crane spring hydraulic cylinder is a type of hydraulic cylinder that uses a spring to return the piston to its original position. This type of cylinder is often used in cranes and other lifting equipment where it is important to have a smooth and controlled movement.

The working principle of a crane spring hydraulic cylinder is based on Pascal's law, which states that pressure applied to an enclosed fluid is transmitted equally throughout the fluid. In a crane spring hydraulic cylinder, the piston is divided into two chambers by a piston seal. One chamber is connected to the hydraulic pump, and the other chamber is connected to the spring.

When hydraulic fluid is pumped into the chamber connected to the piston, the pressure in the chamber increases. This pressure is transmitted to the other chamber, which pushes the piston rod out. The piston rod is attached to the load, so the load is lifted.

When the hydraulic fluid is released from the chamber connected to the piston, the pressure in the chamber decreases. This causes the spring to push the piston rod back in. The load is then lowered.

The spring in a crane spring hydraulic cylinder helps to provide a smooth and controlled movement. The spring also helps to cushion the load when it is lowered.

Here are the main components of a crane spring hydraulic cylinder:

• Cylinder barrel: The cylinder barrel is the housing for the piston and piston rod. It is made of a strong material, such as steel or aluminum.
• Piston: The piston is the moving part of the cylinder. It is made of a hard material, such as steel or aluminum. The piston has a seal that prevents hydraulic fluid from leaking out of the cylinder.
• Piston rod: The piston rod is the part of the piston that extends out of the cylinder. It is attached to the load.
• Seals: The seals prevent hydraulic fluid from leaking out of the cylinder.
• Spring: The spring provides a force that returns the piston to its original position.
• Hydraulic pump: The hydraulic pump is used to pressurize the hydraulic fluid.
• Valves: The valves control the flow of hydraulic fluid into and out of the cylinder.

Crane spring hydraulic cylinders are a versatile and reliable type of hydraulic cylinder. They are used in a wide variety of applications, including cranes, hoists, and excavators.

China Hydraulic Cylinder Manufacturers

Raydafon is a company in the R&D and manufacture of hydraulic cylinders. It maintains a leading position in the market segment of hydraulic cylinders for forklifts in China. In 2020, the domestic market share was around 29%. We produce Industrial vehicle hydraulic cylinders, Aerial work vehicle hydraulic cylinders, Agricultural Machinery hydraulic cylinders, Construction machinery hydraulic cylinders, and Sanitation machinery hydraulic cylinders. Hydraulic cylinder is a non-standard product and all products are independently developed by ourselves.We have a first-class independent R&D platform for assembly. The forklift cylinder production workshop has four semi-automatic lifting cylinder assembly lines and one fully automatic tilting cylinder assembly line, with a designed annual production capacity of 1 million pieces; the special cylinder workshop is equipped with semi-automatic cleaning and assembly systems of various specifications, with a designed annual production capacity of 200,000 pieces. It is equipped with famous brand CNC machining equipment, machining centers, special equipment for high precision cylinder processing, robot welding machines, automatic cleaning machines, automatic cylinder assembly machines, and automatic paint production lines. We have more than 300 sets of key equipment running. The optimized allocation and efficient utilization of equipment resources ensure the precision requirements of the products and meet the high standard quality requirements of the products.

Hydraulic Cylinder Available Brand & Models:

KOMATSU (PC)	PC30,PC40,PC50,PC56,PC60,PC78,PC100,PC110,PC120,PC130,PC160,PC200-3/5/6/7/8/8MO,PC210,PC220-5/6/7/8/8MO,PC240,PC300/350/360-5/6/7/8/8MO,PC400/450-5/6/7/8/8MO,PC800,PC850
CATERPILLAR (E)	E301.5,E302,E305.5,E306,E307V1/V2/B/C/D/E/F,E308B/C,E120B,E312V1/V2/B/C/D,E313D2,E312D2,E315D,E200B,E320V1/V2/A/B/C/D,E324D,E325C/D,E329D,E330/336C/D,E345C,E349D,E365C,E374,E390
KOBELCO (SK)	SK60-3/5/8,SK75-8/SR, SK100 ,SK120-3/5, SK135-8/SR, SK140-8, SK200-3/5/6/6E, SK210-3/5/6/6E,SK230/250-6E,SK250-8,SK260-8,SK350-8/S8,SK460/480-8
HYUNDAI (R)	R55-5/7, R60-5/7, R80, R110,R130, R200-5, R210-5, R215-5/7,R220-5/7/9, R225-5/7/9, R250,R260,R265,R290,R305,R445,R485, R505
HITACHI (EX.ZX)	EX60,EX100-1/2/3,EX120-1/3/5/6,EX200-1/3/5,EX230-5,EX300-1,EX400ZAX60,ZAX70,ZA120-6,ZAX200/210-1/3/5/5K,ZAX240,ZAX250,ZAX260,ZAX330-3/5/6,ZAX450/470,ZAX650/670,ZAX850/870
DOOSAN (DH/DX)	DH55, DH60, DH80,DH150, DH215-5/7,DH220-5,DH225-5/7,DH258,DH300-5/7, DH370,DH420,DH500DX55,DX60,DX75,DX130,DX225-9,DX300,DX380,DX420,DX500
VOLVO (EC)	EC55 ,EC60,EC75,EC80,EC140 ,EC210B/D,EC220D,EC240 ,EC250,EC290,EC300, EC360 EC380,EC460,EC480,EC700,EC750,EC950
KATO (HD)	HD307/308,HD450,HD512,HD700-5/7,HD820-1/2/3/5/R,HD1023-1/3,HD1430-1/3
OTHER BRAND	XCMG,LIUGONG,KUBOTA,CASE,YANMAR,SUNWARD,ZOOMLION,LISHIDE,LIEHERR