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SOV safety lock nut cylinders are designed for mechanical load holding, capable of handling up to 1,000 tons. These cylinders feature a baked enamel exterior finish and plated pistons, ensuring excellent resistance to corrosion. An overflow port acts as a stroke limiter, while interchangeable hardened grooved saddles are standard. A CR-400 coupler and dust cap come included with all models. The single-acting load return design ensures reliable performance.
**Technical Parameters:**
| Model Number | Cylinder Capacity (ton/kN) | Stroke (mm) | Cylinder Effective Area (cm²) | Oil Capacity (cm³) | Collapsed Height (mm) | Extended Height (mm) | Outside Diameter (mm) | Weight (kg) |
|--------------|----------------------------|-------------|-------------------------------|--------------------|------------------------|-----------------------|------------------------|-------------|
| SOV-CLL-502 | 50 (496) | 50 | 70.9 | 355 | 164 | 214 | 125 | 15 |
| SOV-CLL-504 | 50 (496) | 100 | 70.9 | 709 | 214 | 314 | 125 | 20 |
| SOV-CLL-506 | 50 (496) | 150 | 70.9 | 1064 | 264 | 414 | 125 | 25 |
| SOV-CLL-508 | 50 (496) | 200 | 70.9 | 1418 | 314 | 514 | 125 | 30 |
| SOV-CLL-5010 | 50 (496) | 250 | 70.9 | 1773 | 364 | 614 | 125 | 35 |
| SOV-CLL-5012 | 50 (496) | 300 | 70.9 | 2127 | 414 | 714 | 125 | 40 |
For higher capacities, such as above 150 tons, standard stroke lengths of 100 mm, 200 mm, and 250 mm are available. For lightweight aluminum lock nut cylinders, consider the RACL-series.
**Company Information:**
Shanghai SOV Hydraulic Technology Co., Ltd is a leading manufacturer specializing in hydraulic cylinders, synchronous PLC hydraulic systems, hydraulic torque wrenches, and other hydraulic components. With a production capacity ranging from 10 to 1,000 tons, the company has established itself as a key player in the Chinese market.
**Certifications:**
Since its establishment in 1995, SOV has evolved from an OEM manufacturer for Enerpac and Titan into a brand with global recognition. The factory is certified with CE and ISO9001:2008, ensuring high-quality standards and customer satisfaction.
**Clients:**
SOV serves major Chinese industrial companies, including China Petroleum, Baosteel, Sinopec, China State Grid, Jiangnan Shipyards, Sany Group, and China Railway Construction Corporation. Our products have played a crucial role in infrastructure projects, including high-speed railway construction.
**Main Products:**
Our product range includes:
- Hydraulic cylinders and jacks (5–3000 ton), single and double acting, hollow plunger, low height, ultra pressure, and lock nut
- Hydraulic torque wrenches, electric torque wrenches, and pneumatic torque wrenches (100–160,000 Nm)
- Hydraulic bolt tensioners (M24–M600), hydraulic pullers
- Hydraulic pumps (manual and electric, up to 4000 bar)
- Integrated hydraulic lifting systems (4–99 points for house translation, bridge support, and tank welding)
- Hydraulic nuts and couplings (M50–Tr1000), hydraulic hoses
**Why Choose SOV?**
Q1: What is your brand name?
A: We offer our own brand "SOV" and also provide OEM options upon request.
Q2: How do you handle internal leakage in hydraulic cylinders?
A: Internal leakage can be caused by overload, poor polishing, or faulty seals. Our products are designed to withstand overload, and we use CNC machines and imported seals to ensure quality.
Q3: Are the piston rods prone to breaking?
A: We use hard chrome-plated quenched and tempered 45# steel for the piston rod, ensuring strength and durability.
Q4: Is your design safe and reliable?
A: Our R&D team has extensive experience, and we collaborate with universities to ensure safe and efficient designs.
Q5: What is your delivery time?
A: With over 1,000 advanced machines, we can deliver within 7–20 days.
Q6: What after-sales support do you offer?
A: If the product does not meet your expectations, we will cover all losses and provide technical support to resolve any issues.