Tensionally Stable Hydraul Strand Jack

• Certification: RoHS, ISO, CE
• Condition: New
• Automatic Grade: Hydraulic
• Model NO.: SFST65B
• Usage: Construction
• Type: Hydraulic
• Name: Post Tension Jack
• Pressure: 52MPa
• Tonnage: 100 Ton
• Power: Hydraulic
• Oil Pump: Electric, Diesel Pumps
• Cylinder Diameter: 78mm
• Transport Package: Wooden Cases
• Specification: 228* 228*372mm
• Trademark: SFST
• Origin: China
• Production Capacity: 500000 Per Year

Product Description

Product Description

Core jacks are very important in many engineering fields.

It is the key equipment in the construction of prestressed concrete structure. For example, in bridge engineering, the tension of the prestressed tendons in the bridge through the core jack can be applied to the concrete structure in advance, so as to offset the tensile stress that may occur in the use stage, which greatly improves the crack resistance and bearing capacity of the bridge structure, so that the bridge can safely withstand the load such as vehicles.

Product Parameters

Item Type	Nominal tensile force KN	rated oil pressureMPa	Tension piston areaM²	Return piston areaM²	return hydraulic pressure MPa	Diameter mm	Sstroke mm	Weight Kg	Size mm
YCW42B	420	51	0.825×10¯²	0.196×10¯²	<25	Ф68	120	26	Ф156×252
YCW60B	600	45	1.334×10¯²	0.449×10¯²	<25	Ф60	200	60	Ф191×360
YCW65B	650	52	1.25×10¯²	0.236×10¯²	<25	Ф78	150	50	Ф192×310
YCW70B	694	52	1.334×10¯²	0.449×10¯²	<25	Ф60	200	60	Ф191×360
YCW100B	980	51	1.922×10¯²	0.535×10¯²	<25	Ф77	200	80	Ф228×372

 

Working Principle

- Structure: It is mainly composed of tension cylinder, top pressure cylinder, piston, core sleeve, connecting sleeve, support sleeve, protective sleeve, spring and oil nozzle and other components
- Tensioning stage: When tensioning prestressed tendons, the tensioning cylinder nozzle takes in oil, and the jacking cylinder nozzle returns oil. At this time, the top pressure cylinder, the connecting sleeve and the support sleeve are connected to move the anchor ring to the right; At the same time, the tension cylinder, the cover nut, the plug and the core sleeve are connected together to drive the tool anchor to move to the left and stretch the prestressed tendons
- Top pressure anchorage stage: under the condition that the tension tension is stable, the top pressure cylinder oil nozzle is injected, the top pressure piston, the protective sleeve and the top pressure head are connected to move to the right, and the clip is forcefully pushed into the anchor ring, so as to achieve the anchorage of the prestressed tendons. In this process, the oil return of the tension cylinder nozzle, the oil inlet of the top pressure cylinder nozzle, and the hydraulic return of the tension cylinder
- Return stage: the oil nozzle of the tension cylinder and the top pressure cylinder return oil at the same time, and the top pressure piston returns under the action of the spring force 

 

Installation Instructions

In construction engineering, for example, when the roof truss, crane beam and other components of large buildings use prestressing technology, the core jack can accurately stretch the prestressed components, ensure the quality of the components, effectively avoid cracks in the components, extend the service life of the components, and rationally use high-strength steel to save material costs.

Moreover, in the geotechnical anchoring project, the core jack can be used to tighten the anchor rod or anchor cable, enhance the stability of the geotechnical body, and prevent the occurrence of geological disasters such as landslide and foundation pit collapse.

Company Profile

Packaging & Shipping

FAQ

 

Q1: Warranty terms of your machine?
A1: One-year warranty for the machine and technical support according to your needs.

Q2: Will you provide some spare parts for the machines?
A2: Yes, of course.

Q3: What about the voltage of products? Can they be customized?
A3: Our standard voltage is 380V, 50HZ, and 3phase. The voltage can be customized according to your equipment.
 
Q4: Which payment term can you accept?
A4: 100% T/T( Decide according to actual situation)

Q5: How long will it take to arrange production?
A5: we can deliver the normal goods within 3-5 working days. Other nonstandard electrical items we will deliver within 25-30 days.
 
Q6: Can you accept OEM orders?
A6: Yes, with a professional design team, OEM orders are highly welcome.
 
Q7: Which trade term can you accept?
A7: Available trade terms: FOB, CIF, CFR, EXW, etc.