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China, Chinese 300 Ton Prestressed Hydraulic Post Tensioning Double Acting Solid Lifting Jack1 Industrial Products Supplier Manufacturer Details, price list catalog:
China Industrial Products Supplier Manufacturer List Catalog
Lifting EquipmentLifting JackPrestressed JackPrestressed Solid Jack
Guangxi Xiruier Intelligent Technology Co., Ltd.
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Product Description Product Description 300 Ton Prestressed Hydraulic post tensioning Double Acting Solid Lifting Jack Product ParametersDetailed parametersNominal thrust force: 3172KNNominal oil pressure: 48 MPaThrust piston area: 66.07 x10ˉ2 m2Return piston area: 28.08 x10ˉ2 m2Return oil pressure: <25MPa stroke: 200mmOverall dimensions: 350*350*450 mm Working Principle The 300-ton prestressed solid jack (mostly a through-type structure) operates based on hydraulic transmission, utilizing the coordinated action of two hydraulic cylinders to tension and anchor the prestressed tendons. The specific process is as follows:1. Tensioning PhaseThe high-pressure oil pump supplies oil to the tensioning cylinder nozzle, increasing the oil pressure within the cylinder. This pushes the tensioning piston, which drives the tool anchor (attached to the prestressed tendon) to the left, exerting tension on the tendon and causing it to elastically stretch. At this point, the jacking cylinder nozzle is in the oil return state, while the jacking piston and related components remain stationary. The anchor ring secures the position, providing tensioning reaction support.2. Anchoring PhaseWhen the tendon has been tensioned to the designed tension value, the oil circuit is switched, with high-pressure oil flowing to the jacking cylinder nozzle. The oil pressure within the jacking cylinder pushes the jacking piston forward, forcing the clamp into the anchor ring, causing it to engage the tendon and complete the anchoring. 3. Return StrokeAfter anchoring is complete, the oil nozzles of the tensioning and compression cylinders are simultaneously de-energized. The tensioning piston returns to its original position due to the rebound force of the prestressed tendon or the spring force. The compression piston also retracts under the spring's return force, preparing for the next tensioning cycle.The entire process utilizes pressure conversion in the hydraulic system, converting hydraulic energy into mechanical energy. This ensures precise tensioning and reliable anchoring of the prestressed tendons, ensuring the concrete structure achieves the desired prestress.Our AdvantagesAs a key piece of equipment for large-scale prestressed construction, the 300-ton prestressed solid jack offers the following advantages:1. High Load CapacityWith a rated tensioning force of up to 300 tons (3,000 kN), it can meet the tensioning demands of heavy-loaded prestressed components such as large bridges, high-rise buildings, and water conservancy projects. It is compatible with high-strength steel strands and rebar, ensuring sufficient prestressing stress in the structure.2. High PrecisionUtilizing a precision hydraulic control system and high-precision pressure gauges or sensors, the tensioning force error can be kept to a minimum (up to 0.1% on some models), ensuring precise tensioning according to design requirements and ensuring project quality.3. Stable and Reliable StructureCore components (such as the tensioning cylinder, jacking cylinder, and piston) are primarily constructed of high-strength alloy steel, resistant to high pressure and wear. The double-seal design enhances the hydraulic system's sealing and reduces the risk of oil leaks. The overall structure is compact, with even force distribution, ensuring high stability during operation and a low failure rate. 4. Convenient and Efficient OperationCombined with high-pressure oil pumps and other equipment, these anchors perform tensioning, anchoring, and retraction operations through oil line switching, providing a clear workflow and simple operation. Some models are compatible with group anchor systems, supporting the simultaneous tensioning of multiple prestressed tendons, improving construction efficiency.5. Strong AdaptabilityIt can be used in a variety of construction scenarios, including highway bridges, railway tunnels, hydropower dams, and high-rise buildings. It withstands complex construction site environments (such as certain dust and vibration) and can be adapted to different anchor types (e.g., group anchors and single-hole anchors), offering excellent versatility.6. High SafetySafety features such as overload protection and retraction limiters prevent equipment damage or accidents caused by overpressure or overloading. The high-strength materials and robust structure of key components also ensure construction safety.applicationFAQFAQ:Q1: Are you a factory or trade company?A1: We are a factory. And we have ourselves trading company. Q2: How long is the warranty period?A2: One year warranty. Looking forward to your consultation and repurchase~~ Q3: Warranty terms of your machine?A3: One-year warranty for the machine and technical support according to your needs.Q4: Will you provide some spare parts for the machines?A4: Yes, of course.Q5: What about the voltage of products? Can they be customized?A5: Our standard voltage is 380V, 50HZ, and 3phase. The voltage can be customized according to your requirements. Q6: Which payment term can you accept?A6: 100% T/T( Decide according to actual situation)Q7: How long will it take to arrange production?A7: we can deliver the normal goods within 7-15 days. Other nonstandard electrical items we will deliver within 25-30 days. Q8: Can you accept OEM orders?A8: Yes, with a professional design team, OEM orders are highly welcome. Q9: Which trade term can you accept?A9: Available trade terms: FOB, CIF, CFR, EXW, etc.Q10: Do you provide samples? Is it free or extra?A10: Yes, we could offer you the sample machine. But it's not free. You need to pay for the sample and the cost of the freight.Q11: What are your terms of payment?A11: We accept T/T, Western Union, Money Gram, Paypal, L/C, etc. Why you choose us:1. We are a real factory offering products and providing free technical advice.2. Company in business for many years and served Over 50 countries' customers.3. All machines with CE, ISO, and SGS certificates. Machine and spindle warranty 1 year. 4. We have phone support in English, if you have any questions, you can call us, and we can give you the best solution within 24 hours.5. Fast delivery, save your time.
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