#### **Product Overview**
The heavy-duty lever hydraulic cylinder is designed with a high-strength lever structure, specifically developed for high-load and high-impact working conditions. It features strong load-bearing capacity, stable structure, and long service life. It is suitable for heavy industrial fields such as metallurgical equipment, construction machinery, and presses.
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### **Core Advantages**
1. **Extremely High Load Capacity**
- Made of high-quality alloy steel (42CrMo/27SiMn), the working pressure can reach 35 MPa
- Four pre-tightening pull rods are designed, with tensile strength ≥ 1000 MPa
- The maximum thrust can reach 500 tons (depending on the cylinder diameter)
2. **Strengthened Structural Design**
- Thickened cylinder barrel (30% thicker than standard cylinders)
- Extra-large diameter piston rod (rod diameter ratio is 1:2)
- Step-type buffer structure, effectively absorbing impact energy
3. **Long-lasting Sealing System**
- Imported brand sealing components (Parker/Merkel)
- Three-level sealing combination: main seal + guide belt + dust seal
- Service life exceeds 1 million cycles
4. **Diverse Configurations**
- Optional with displacement sensor and pressure sensor
- Multiple installation methods: flange type, earring type, hinge shaft type
- Surface treatments: hard chrome plating, ceramic coating, etc.
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### **Technical Specifications**
| Item | Parameter Range | |---------------|-----------------------|
| Cylinder diameter | Φ80mm - Φ500mm |
| Rod diameter | Φ40mm - Φ280mm |
| Stroke | 100mm - 3000mm |
| Working pressure | 16 - 35 MPa |
| Test pressure | 1.5 times working pressure |
| Temperature range | -30℃ to +120℃ |
| Sealing material | PU/PTFE/aramid fiber |
| Protection level | IP67/IP69K |
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### **Typical Applications**
- **Metallurgical Industry**: Rolling mill lowering, continuous casting machine lifting
- **Pressure Machinery**: Main cylinder of four-column hydraulic press
- **Construction Machinery**: Propulsion of shield machines, boom extension of cranes
- **Marine Equipment**: Steering gear, opening and closing of hatch covers
- **Special Equipment**: Loading of testing machines, jacking of bridges
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### **Selection Guide**
1. **Load Calculation**
- Thrust = Pressure × Effective Area
- Consider the impact factor (recommendation: 1.2 - 1.5 times)
2. **Itinerary Confirmation**
- Actual itinerary plus 10% buffer
- Long-distance itineraries should consider anti-bending design
3. **Installation Method**
- Flange type: Suitable for fixed installation
- Ear-ring type: Allows swinging
- Pivot shaft type: Adapted for angle changes
4. **Special Requirements**
- High-temperature environment: Select heat-resistant sealing
- Corrosive environment: Stainless steel material
- Frequent use: Reinforced guiding design
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### **Maintenance and Care**
1. **Daily Inspection**
- Check the pre-tightening force of the lever every week
- Check for any leakage of the seal every month
2. **Regular Maintenance**
- Replace the hydraulic oil every 5,000 hours
- Replace the seals every 10,000 hours
3. **Fault Handling**
- Oil leakage: Check for worn seals
- Crawling: Remove air or inspect the guide mechanism
- Strange noise: Check the bearings or shock absorber
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### **Service Support**
- Offer non-standard customization services
- Optional intelligent monitoring system
- Professional technical team support
- 12-month quality guarantee
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