50-Ton Single-Acting Hollow Hydraulic Jack with Locknut
Product Description
Product Detail
If you’re out on a jobsite swapping a bearing in a mining crusher, lining up bridge girders, or setting a 50-ton industrial motor, you don’t have time for tools that let you down. That’s why this 50-ton single-acting hollow jack with a locknut has become the go-to for crews that need reliable, precise lifts every time. It’s built with heavy-duty alloy steel and a safety-first design, the kind of tool that turns a headache of a job into just another day at work.
I.50-Ton Strength You Can Count On
We built this jack to take a beating. The cylinder barrel and piston rod are forged from high-strength alloy steel, so it handles 50 tons of axial load without flexing or failing. To keep it running leak-free, we paired Dongsheng polyurethane seals with PTFE back-up rings—this combo stops hydraulic oil from seeping out, even when you’re holding pressure for hours. It’s the kind of performance that keeps your team productive, not stuck fixing equipment.
HCIC 50-ton Single-acting Hollow Jack
Professional single-acting hollow hydraulic jack with locknut, designed for stable and reliable heavy-duty industrial operations.
Heavy-duty Performance
Engineered for heavy-duty tasks, delivering strong and stable lifting force. Ideal for tough industrial working conditions with long service life.
ISO9001 Certified
Manufactured under strict quality management system, fully compliant with ISO9001 certification standards.
Customizable Solutions
Support personalized customization to meet different working scenarios and special project requirements.
Wide Application & Bulk Procurement
Perfect for industrial lifting, equipment maintenance and bulk procurement projects. Ideal for long-term cooperation and large orders.
Technical Specifications: The Hardcore Support for Industrial-Grade Reliability:
| Parameter | Specification | |||||||
| Rated Tonnage | 50 tons (Working Pressure: 70MPa) | |||||||
| Stroke Range | 50-200mm (Customizable) | |||||||
| Piston Rod Diameter | 80-120mm (Hollow Bore: 30-50mm) | |||||||
| Operating Temperature | -20℃~+80℃ (Compatible with Anti-Wear Hydraulic Oil) | |||||||
| Sealing System | Double-Lip Dust Seal + U-Type Main Seal + Guide Ring | |||||||
1.1 Simple, Efficient Design for Real-World Tasks
Unlike double-acting jacks that need complicated hydraulic circuits, this one uses a single-acting system: pump it up to lift, and let the load or gravity push the piston back down. It’s a no-fuss design that cuts down on hoses, valves, and energy use. The hollow piston rod is a game-changer too—slide a long bolt or steel shaft right through it, and you’re ready for bolt tensioning, shaft alignment, or pulling bearings off a spindle. No more rigging up complicated workarounds.
1.2 Locknut Safety That Meets ISO9001 Standards
When you’re supporting a 50-ton load overnight or during a weld, the last thing you want is a hydraulic leak causing a drop. That’s why we added a high-strength locknut—once you’ve jacked to the right height, just tighten the nut against the cylinder, and it mechanically locks the piston in place. It’s ISO9001-compliant, so you can rest easy knowing your crew is protected, even if the hydraulic system loses pressure.
1.3 About Us
(1).Delivery time
| Pieces | 1-2 | 3-50 | 51-100 | ＞100 | |||||
| Eastern Time | 20days | 35days | 45days | Pending | |||||
(2).Packaging and shipping
| Packing Details | Wooden Box | Sales Unit | Single Product | ||||||||
| Single Packing Size | 55X55X55cm | Single Product Gross Weight | 30kilograms | ||||||||
(3).Custom options
LOGO customization (minimum order: 100 pieces)
Outsourcing packaging customization (minimum order: 100 pieces)
Pattern customization (minimum order: 100 pieces)
IV.Frequently Asked Questions
II.FAQ
Complete solutions for 50-ton single-acting hollow hydraulic jack with locknut: selection guide, custom service, maintenance, warranty and heavy-duty industrial applications.
📏 Selection & Application Adaptation
Q: What is a 50-ton single-acting hollow hydraulic jack with locknut used for?
A: A 50-ton single-acting hollow hydraulic jack with locknut is a heavy-duty hydraulic lifting & holding tool. It is widely used in machinery installation, bridge maintenance, construction engineering, power equipment maintenance, ship repair, and structural tensioning projects. The locknut design enables safe load-holding for long periods, eliminating risks of sudden load drop.
Q: How to confirm if a 50-ton single-acting hollow hydraulic jack fits my project?
A: Verify these core parameters to ensure perfect adaptation: 1. Rated load (50-ton meets your heavy-load demand); 2. Required stroke length; 3. On-site working space and installation method; 4. Operating pressure and matched hydraulic pump; 5. Working environment (temperature, dust, humidity). Our technical team provides free selection checks for your project.
Q: What is the standard stroke of your 50-ton single-acting hollow hydraulic jack with locknut?
A: Our standard models offer strokes of 50mm, 100mm, 150mm, and 200mm. The hollow design allows threaded rods or cables to pass through, making it ideal for tension, pulling, and pressing tasks. You can select the standard stroke based on your specific construction or maintenance workflow.
Q: Can this 50-ton hollow hydraulic jack work with any hydraulic pump?
A: This 50-ton single-acting hollow hydraulic jack is compatible with manual hydraulic pumps, electric hydraulic pumps, and pneumatic hydraulic pumps. It is designed for a standard working pressure of 700 bar (10,000 PSI). We recommend matching it with our brand-specific pumps for optimal performance, pressure stability, and service life.
Q: What safety features does the 50-ton locknut hydraulic jack have?
A: This jack is equipped with multiple safety designs: 1. A precision locknut to mechanically lock the piston and hold loads safely for extended periods; 2. Built-in over-pressure protection valve to prevent damage from overloading; 3. High-strength alloy steel body for explosion-proof & deformation resistance; 4. Anti-slip base to enhance operational stability.
⚙️ Customization Service
Q: Can you customize a 50-ton single-acting hollow hydraulic jack with locknut?
A: Yes, we provide full customization for 50-ton single-acting hollow hydraulic jacks with locknut. We can customize stroke length, hollow inner diameter, mounting base, locknut type, surface coating, and pressure parameters. Customization is available according to your drawings, technical specs, and special working conditions.
Q: What is the MOQ for customized 50-ton hollow hydraulic jacks with locknut?
A: We support a flexible MOQ. For standard customized modifications, the MOQ is 1 unit, perfect for prototype testing and small-batch project replacement. For large-scale OEM/ODM orders and bulk wholesale, we offer preferential MOQ policies and discounted pricing.
Q: How long is the lead time for custom 50-ton locknut hydraulic jacks?
A: Standard customized 50-ton jacks have a lead time of 10–15 working days after design confirmation and deposit payment. For complex custom projects with special materials or processes, the lead time is 15–25 working days. We provide expedited production services for urgent projects to meet tight deadlines.
Q: Can you add special surface treatments for harsh environments?
A: Absolutely. We offer custom surface treatments, including heavy-duty anti-corrosion coating, nickel plating, and chrome plating, for harsh working environments like marine, coastal, and chemical sites. These treatments effectively resist rust, corrosion, and wear, extending the jack’s service life in extreme conditions.
🛡️ After-Sales & Warranty Support
Q: What warranty do you provide for the 50-ton single-acting hollow hydraulic jack with locknut?
A: We offer a **12-month standard warranty** for all 50-ton locknut hydraulic jacks, starting from the shipment date. The warranty covers manufacturing defects, material failures, and seal leaks under normal operation. Damages caused by improper operation, overloading, and lack of maintenance are excluded.
Q: How to maintain the 50-ton hollow hydraulic jack to extend its service life?
A: Follow these maintenance steps: 1. Use clean, recommended hydraulic oil and replace it regularly; 2. Clean the piston surface before and after each use to avoid dust scratches; 3. Regularly inspect the locknut, seal, and hydraulic hose for wear or damage; 4. Store the jack in a dry, dust-free environment; 5. Avoid overloading and sudden impact operations. A detailed maintenance manual is included with every order.
Q: Do you supply replacement parts and after-sales technical support?
A: Yes. We provide genuine replacement parts, including seal kits, pistons, locknuts, and quick connectors, for your 50-ton hollow hydraulic jack. We offer lifelong free online technical support, including troubleshooting, operation guidance, and maintenance training. For bulk orders, on-site service can be arranged upon request.
III. Where It Shines
3.1 Heavy Equipment Maintenance
If you’ve ever struggled to pull a bearing off a 12-foot motor shaft, you know the pain of using tools that don’t fit. The hollow piston on this jack slides right over the shaft, so you can apply 50 tons of force evenly and pop the bearing off cleanly. It cuts maintenance time by hours, which means less downtime for your equipment and more revenue for your business.
3.2 Bridge and Construction Work
When you’re setting precast bridge beams or adjusting bearings, stability is everything. This jack’s 50-ton capacity handles the weight easily, and the locknut keeps the beam locked in position while you shim or weld. It’s compact enough to fit in tight spaces between girders, so you don’t have to haul in a bulky crane for small adjustments.
3.3 Built to Your Exact Specs
No two jobs are the same, so we don’t force you to use a one-size-fits-all jack. We can customize the stroke length, hydraulic port size, and mounting style—whether you need a flange mount for a fixed platform or a clevis mount for mobile use. Our team works with you to make sure the jack integrates seamlessly with your existing hydraulic system, so you don’t waste money on modifications.
IV. How to Pick the Right Setup
• For mobile jobs: Pair it with a manual hydraulic pump for one-off lifts, or an electric hydraulic power pack if you’re moving between multiple points on a site.
• For harsh environments: Upgrade to a corrosion-resistant coating for offshore or mining work, and temperature-resistant seals if you’re operating in extreme heat or cold.
• For long-term static loads: Go for the version with a pressure-holding valve. It automatically tops up pressure if it drops, so you get double protection from the locknut and the valve.
V.Contact Us
HCIC is a professional hydraulic manufacturer, mainly engaged in hydraulic system design, manufacture, installation, transformation, commissioning and hydraulic components brand sales and technical services.We hope that our product can help to save your cost and improve your quality. For More details please email us "davidsong@mail.huachen.cc" or google search "HCIC hydraulic"