Stressing Multi Strand Salejack Prestressing Jack Jack for

• Certification: RoHS, ISO, CE
• Condition: New
• Automatic Grade: Hydraulic
• Model NO.: SFST200
• Usage: Construction
• Type: Hydraulic
• Name: Post Tension Jack
• Pressure: 25MPa
• Tonnage: 200 Ton
• Stroke: 150-500mm
• Oil Pump: Electric, Diesel Pumps
• Cylinder Diameter: 77mm
• Transport Package: Wooden Cases
• Specification: 228* 228*372mm
• Trademark: SFST
• Origin: China
• Production Capacity: 500000 Per Year

Product Description

Product Description

Post tension jack tonnage 
Post tension jack 200 ton is mainly used in bridge engineering construction with prestressed anchors and tension equipment. Post tension jack is a double action jack which uses double hydraulic cylinder to tension prestressed bar and top pressure anchor.
Prestressed jack is a tool used to apply prestress. Prestressed jack usually consists of the following parts:
1. Body: The body of the Prestressed jack is usually composed of one or more hydraulic cylinders, which are used to generate the force required to apply the prestress.
2. Hydraulic system :Prestressed jack provides power through hydraulic system. Hydraulic system includes hydraulic tank, hydraulic pump, hydraulic pipeline and control valve and other components.
3. Piston rod: the piston rod is the part connecting the hydraulic cylinder and the prestressed member, which transmits the liquid pressure to the prestressed member.
 

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
YCW120B	1202	48	2.505×10¯²	0.871×10¯²	<25	Ф77	200	100	Ф248×372
YCW150B	1498	51	2.937×10¯²	1.609×10¯²	<25	Ф103	200	120	Ф285×372
YCW200B	2002	53	3.778×10¯²	1.965×10¯²	<25	Ф110	200	146	Ф312×372
YCW250B	2495	54	4.62×10¯²	2.802×10¯²	<25	Ф140	200	175	Ф350×385
YCW300B	2953	51	5.749×10¯²	3.132×10¯²	<25	Ф145	200	225	Ф385×385
YCW350B	3465	51	6.795×10¯²	3.461×10¯²	<25	Ф165	200	250	Ф412×390
YCW400B	3975	52	7.643×10¯²	4.592×10¯²	<25	Ф175	200	290	Ф440×390
YCW450B	4493	51	8.809×10¯²	5.792×10¯²	<25	Ф175	200	320	Ф460×390
YCW500B	5025	50	10.05×10¯²	4.77×10¯²	<25	Ф196	200	395	Ф500×425
YCW650B	6500	51	12.78×10¯²	6.751×10¯²	<25	Ф228	200	600	Ф575×560

Working Principle

Post tension jack working principle is as follows:
when the Post tension jack is tensioning the prestressed steel bar, the oil nozzle of the tensioning cylinder enters the oil, the oil nozzle of the top pressure cylinder returns the oil, and the top pressure cylinder, the connection sleeve and the support sleeve are connected into one body to move right to resist the anchor ring;
The tensioning cylinder, end cap nut, plug and piercing sleeve are connected into one to drive the tool anchor to move to the left of the tensioning prestressed bar;
In the case of top pressure anchorage, under the condition of maintaining stable tension, the oil nozzle of top pressure cylinder is fed, and the top pressure piston, protective sleeve and top pressure head are connected into one body, and the clamp is strongly pushed into the anchor ring;
At this time, the oil nozzle of the tension cylinder returns oil, the oil inlet of the top pressure cylinder, and the hydraulic return of the tension cylinder.
Finally, the oil nozzle of the tension cylinder and the top pressure cylinder return oil at the same time, and the top pressure piston returns to reset under the action of the spring force. 

Installation Instructions

Post tension jack
1. Put the steel strand through the reserved corridor of the structure, and require the exposed length of the steel wire bundle to be 200-250mm longer than the working length of the jack at the tension end. The steel strand must be cut with a book grinder without loose head or "rough head", so as to avoid perforation difficulties.
2.Cover the end of the wire bundle of the working anchor plate, and push it to the anchor plate, and fix it at the stop.
3. Install the anchor clip: before installing the clip, use the steel ring to tie each clip together, and then push it into the cone hole of the anchor plate along the steel strand, and push it by hand until it does not move.
4. Install limit plate: the limit plate is designed according to the working anchor plate and corresponds to the hole of the anchor plate.
5.Install the jack: first, the end of the steel strand bundle is bound with wire pin, then the jack can be hoisted up and worn on the steel bundle, and the jack front end cover support mouth is set outside the limit plate. At this time the jack can be coaxial in.
6.Install the tool anchor on the support port of the piston end.
 

Company Profile

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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.