3Ton Fixed Heavy Duty Crane for Auto Repair, Machinery Maintenance & Industrial Handling
Product Specifications
| Specification Category |
Specific Parameters |
| Core Performance |
Equipped with a Load Leveler, specially designed for lifting, lowering, and transporting heavy loads with minimal effort |
| Rated Load Capacity |
6600LB (3000KG) |
| Lifting Range |
47"-72" (120cm-183cm) |
| Working Range |
0-86.6" (0-220cm) |
| Package 1 Parameters |
Gross Weight (G.W.): 77LBS (30KGS); Net Weight (N.W.): 72.6LBS (28KGS); Package Size: 5"*33.8"*4.3" (134cm*81cm*11cm) |
| Package 2 Parameters |
Gross Weight (G.W.): 162LBS (72KGS); Net Weight (N.W.): 158LBS (70KGS); Package Size: 57.8"*11.8"*7.8" (144cm*32cm*21cm) |
| Package 3 Parameters |
Gross Weight (G.W.): 35LBS (18KGS); Net Weight (N.W.): 33LBS (17KGS); Package Size: 27.5"*7"*6" (72cm*19cm*15.5cm) |
Product Details
Core Design Highlights
The 3Ton Fixed Heavy Duty Crane is an industrial-grade device specifically designed for heavy load handling. Its core advantage lies in the Load Leveler -- through precise gravity balance adjustment, it can keep heavy loads level during lifting and transportation. This prevents damage to precision heavy components such as engines and differentials due to tilting and collision, significantly reducing operation difficulty. Even a single person can handle heavy load transportation with minimal effort.
The device adopts a "fixed" structural design. Although it cannot be moved, its base has extremely strong stability, with a center-of-gravity deviation of ≤2cm when bearing loads (under full load condition). Combined with a high rated load capacity of 3000kg, it can meet the handling needs of most heavy components in industrial scenarios. Compared with mobile cranes, it has more advantages in static load-bearing safety.
Structural and Material Advantages
- Main Structure: The lifting arm is made of thickened manganese steel with a thickness of 8mm and a tensile strength of ≥450MPa, which is not prone to bending or deformation under long-term load-bearing. The connection parts are equipped with high-strength bolts, with a tightening torque of 50N*m to prevent component loosening during operation.
- Load Leveling System: It has a built-in hydraulic damping device. The lifting/lowering speed of heavy loads can be controlled at 5cm/s during leveling, avoiding load sway caused by excessive speed. The leveling range is ±5°, which can adapt to the center-of-gravity deviation of different heavy loads and ensure stable transportation.
- Packaging Design: It adopts a three-part split packaging, dividing the device into lightweight components (such as leveler accessories), medium-weight components (such as split lifting arms), and heavy components (such as the base frame). This not only reduces the weight of a single handling (the maximum gross weight of a single package is only 72kg) but also facilitates flexible packaging allocation according to transportation space, reducing the risk of collision during logistics and transportation.
Application Scenarios
Automotive Manufacturing and Maintenance Field
- Automotive Factory Assembly Line: In the assembly process of engines and transmissions for cars, SUVs, or light trucks, it is necessary to transport engines weighing 150-300kg from the warehouse area to the assembly station. The crane can keep the engine level through the Load Leveler and accurately align it with the car body's engine compartment, avoiding alignment deviations caused by manual handling and improving assembly efficiency.
- Heavy-Duty Auto Repair Shops: When repairing differentials (usually weighing 200-400kg) or transmissions of large trucks and buses, it is necessary to disassemble the components from the chassis and lower them to the repair bench. The crane's lifting range of 120-183cm can adapt to the chassis heights of different vehicle models, and the working range of 0-220cm can flexibly adjust the component handling path to avoid touching other parts of the vehicle body.
Construction Machinery Maintenance Scenarios
- Excavator and Loader Maintenance: The engine weight of such equipment is mostly 500-1000kg, which does not exceed the 3000kg load capacity of the crane. In the repair workshop, the device can be used to vertically lift the engine from the machinery body and then move it horizontally to the maintenance area. The Load Leveler can prevent damage to oil pipes and circuits caused by engine tilting.
- Agricultural Machinery Maintenance: The transmission and power system components of combine harvesters and large tractors are relatively heavy (300-600kg). In agricultural machinery cooperatives or maintenance stations, the crane can replace the traditional method of "manual labor + simple spreaders" to safely and efficiently complete component disassembly and assembly, reducing the labor intensity of maintenance personnel.
Industrial Production Auxiliary Scenarios
- Heavy Equipment Production Line: In the production process of heavy industrial equipment such as machine tools and compressors, it is necessary to transport core components (such as machine tool spindle boxes and compressor cylinders) weighing 800-2000kg. The crane's high load capacity and stable leveling ability can ensure the safety of component transfer between processes in the workshop, avoiding production delays caused by component damage.
- Warehousing and Logistics Loading/Unloading: For heavy accessories (such as large motors and industrial gearboxes) stored in warehouses for a long time, the crane can be used to transfer the accessories from transport vehicles (such as forklifts and trucks) to shelves or the ground during loading/unloading for inbound and outbound. The working range of 220cm can cover the operation needs of most warehouse spaces, improving loading/unloading efficiency.
Frequently Asked Questions (FAQs)
Operation and Use
Q: How to keep the heavy load level with the Load Leveler during use? Is frequent adjustment required?
A: First, connect the heavy load to the leveler with a dedicated spreader. After starting the leveling system, the device will automatically detect the center-of-gravity deviation of the heavy load and make fine adjustments. If the heavy load tilts slightly during transportation, you can correct it by manually adjusting the knob on the side of the leveler (turn clockwise to lift the left side, counterclockwise to lift the right side). Usually, one adjustment is enough to keep it level throughout the process, and frequent operation is not required.
Q: What is the difference between the crane's lifting range and working range? How to choose the appropriate range in actual operation?
A: The "lifting range" refers to the vertical lifting height range of the heavy load (120-183cm), and the "working range" refers to the horizontal rotation radius range covered by the lifting arm (0-220cm). For example, when transporting a car engine, if the height of the vehicle body chassis is 100cm, the lifting height should be set to 120-150cm (20-50cm higher than the chassis). The working range is adjusted according to the horizontal distance between the engine and the crane to ensure that it does not touch surrounding components.
Installation and Safety
Q: Are there any requirements for the ground when installing the fixed crane? Is it necessary to fix the base?
A: The ground must be made of concrete (thickness ≥10cm, compressive strength ≥C30), and installation on soft or easily damaged ground such as soil or floor tiles is not allowed. The base must be fixed with expansion bolts (it is recommended to use M16*100mm expansion bolts, 1 bolt per corner, 4 bolts in total). After installation, check the flatness of the base, with an error of ≤3mm, to prevent safety accidents caused by equipment tilting.
Q: Can the device be used to transport heavy loads exceeding the rated load (3000kg) for a short time?
A: Absolutely not. The rated load capacity of 3000kg designed for the device is the safety upper limit. Exceeding this weight will cause the lifting arm to bend, hydraulic system leakage, or even base fracture, leading to the risk of heavy load falling. If it is necessary to transport overweight items, a crane with a higher load capacity level must be used, and overloading is strictly prohibited.
Maintenance and Packaging
Q: After long-term use, the Load Leveler becomes inaccurate in leveling. How to deal with this?
A: First, check the hydraulic oil level of the leveler (it should be between the "MIN-MAX" marks on the oil gauge). If it is insufficient, add 46# anti-wear hydraulic oil. If the oil level is normal, disassemble the damping valve inside the leveler, remove impurities in the valve (it is recommended to clean it with diesel and dry it), reassemble it, and test. Usually, the accuracy can be restored. If the problem persists, contact professionals to overhaul the hydraulic system.
Q: For the components in the three-part split packaging, how to confirm the corresponding relationship of each component during installation? What if I am worried about wrong assembly?
A: Each package is labeled with component identification (such as "Package 1 - Leveler Accessories", "Package 2 - Main Lifting Arm", "Package 3 - Base Connectors"), and an installation manual is included with the package. The manual contains component numbers and assembly step diagrams. During installation, you can assemble in the order of "base -> lifting arm -> leveler -> accessories" and check the numbers one by one. If you have any questions, you can refer to the component explosion diagram in the manual to avoid wrong assembly.
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