Crane Boom Hydraulic Cylinders
Product Description
Product Detail
Product Introduction
1.The cylinder itself has the two-way hydraulic balance circuits, integrated precision positioning control oil cylinder in any position within the scope of travel.
2.Oil cylinder equipped with riot valve core, to ensure that all of a sudden blackout and tubing rupture caused by emergency accidents.
3.Oil cylinder integrated valve and valve core is using the SUN's products.
4.Hydraulic cylinder seal adopt Parker, Merkel and other professional and Hallite seals.
Fault diagnosis
When a hydraulic cylinder malfunctions or fails to operate normally, timely fault diagnosis and targeted repair are crucial to restore its normal working performance. Below is a detailed breakdown of the fault diagnosis and step-by-step repair process for hydraulic cylinders, designed to be practical, easy to follow, and free of rigid AI-style wording, closely aligned with real-world operational habits.
First, for the common issue of scratches or functional failures in hydraulic cylinders, the repair process starts with thorough cleaning and inspection to identify the root cause. The specific repair steps are as follows:
Use an oxyacetylene flame to heat the scratched area of the hydraulic cylinder. During this process, it is essential to control the temperature accurately—too high a temperature will cause surface annealing, which weakens the metal strength, while too low a temperature cannot fully remove the aged oil and impurities penetrating the metal surface. Heat the area until the oil seeping out of the scratches stops sparking, ensuring all residual oil and contaminants are completely burned off.
After cooling the heated area to room temperature, use an angle grinder to process the scratched surface. Grind the scratched part to a depth of more than 1mm, and shape the grinding area into a dovetail groove along the direction of the guide rail or the cylinder’s movement track. This groove design enhances the stability of subsequent repairs. Additionally, drill deeper holes at both ends of the scratch to disperse the stress during operation and avoid secondary damage.
Finally, take absorbent cotton soaked in acetone or absolute ethanol, and carefully wipe the ground surface to remove all metal debris, dust, and residual oil stains. Ensure the surface is clean and dry before proceeding with subsequent repair work, laying a solid foundation for the cylinder’s stable operation.
Crane Boom Hydraulic Cylinders Specification
All parameters can be customized
| The Specification of 7ton hydraulic cylinder | |||
|---|---|---|---|
| General | Model | FD70 | |
| Power Type | Diesel | ||
| Rated Capacity | kg 7000 | ||
| Load Centre | mm 600 | ||
| Characteristic&Dimension | Lift Height | mm 3000 | |
| Fork Size | L×W×T | mm 1220×150×70 | |
| Mast Tilt Angle | F/R | Deg 6°/12° | |
| Fork Overhang (Wheel center to fork face) | mm 595 | ||
| Ground Clearance (Bottom of mast) | mm 200 | ||
| Overall Dimension | Length to face of fork (Without fork) | mm 3565 | |
| Overall Width | mm 2010 | ||
| Mast Lowered Height | mm 2500 | ||
| Mast Extended Height (With backrest) | mm 4415 | ||
| Overhead Guard Height | mm 2430 | ||
| Turning Radius (outside) | mm 3350 | ||
| Speed | Travel (Full load) | km/h 30 | |
| Lifting (Full load) | mm/s 460 | ||
| Max.Gradeability | % 20 | ||
| Chassis | Tyre | Front | mm 8.25-15-14PR |
| Rear | mm 8.25-15-14PR | ||
| Wheelbase | mm 2250 | ||
| Self weight | kg 9750 | ||
| Power&Transmission | Battery | Voltage/Capacity | V/Ah (12/80) x 2 |
| Engine | Model | 6BG1-02 | |
| Manufacture | ISUZU | ||
| Rated output/r.p.m. | kw 82.4/2000 | ||
| Rated torque/r.p.m. | N·m 416/1600 | ||
| No.of Cylinder | 6 | ||
| Bore×Stroke | mm 105×125 | ||
| Displacement | cc 6494 | ||
| Fuel Tank Capacity | L 125 | ||
| Transmission | Type | Hydraulic | |
| Stage | FWD/RVS | 2/2 | |
Production
Multiple hydraulic cylinder is arranged in the telescopic arm, as the main force of single-beam crane telescopic crane work component quality generally accounts for 10% ~ 21% of the whole machine, and large cranes accounted for the proportion of moreBig. As a result, technology of large-tonnage single-girder crane telescopic crane, high hoisting height by a big margin in case the performance play a crucial influence, and the key technology of telescopic boom is telescopic mechanism model, at present, partial with multiple hydraulic cylinders are arranged in telescopic boom of the casing model.
Our Service
We adhere to the business philosophy of "quality first, service first" and provide customers with high -quality products. The company has been trusted and supported by many customers with its competitive price advantages and high -quality services over the years. Looking forward to serving you!
Why choose us?
HCIC's quality custom products are produced for OEM applications in a wide variety of worldwide industries, including manufacturing engineering machinery, loaders hydraulic cylinders, vehicle cylinders, construction, forestry, waste management, mining, material handling, industrial applications, agriculture, manufacturing, transportation, marine applications and oil field equipment. Our success has been built on the engineering expertise and manufacturing capabilities we offer to meet the very specific demands of our industry clients.
FAQ
1.What payment terms do you accept?
We accept T/T, L/C, and Western Union. For new customers, 30% deposit and 70% balance before shipment is standard.
2.Can you send us samples for testing before placing a formal order?
Yes, we can provide samples. Sample cost and shipping will be charged, and they can be refunded or deducted from your first formal order.
3.What certifications do your hydraulic cylinders have?
Our cylinders are certified with ISO 9001, CE, and other industry standards to meet global quality and safety requirements.
4.Do you offer after-sales service and technical support?
Yes, we provide 24/7 technical support, on-site service (for bulk orders), and a 12-month warranty for all our hydraulic cylinders.
Packing & Shipping