Hydraulic prestressed concrete slab jack

Hydraulic prestressed concrete slab jack   The Hydraulic prestressed concrete slab jack   originates from the concrete post tensioning principle. A strand jack can be considered a linear winch. In a strand jack, a bundle of steel cables or strands are guided through a hydraulic cylinder; above and below the cylinder are anchor systems with wedges that grip the strand bundle. By stroking the cylinder in and out while the grips are engaged in the anchors, a lifting or lowering movement is achieved. The motion of the cylinders is driven by hydraulic power packs. They can be electric or diesel powered. Our sophisticated SCC software program synchronizes the motion of the strand jacks and adjusts the motion to the loads per lifting point. Hydraulic prestressed concrete slab jack  are available with two types of strand: a standard strand of 15,7mm and compact strand of 18mm. The 15,7mm strand can work with a dynamic load of 110kN. The 18mm strand can work with a dynamic load of 155kN. The number and type of strands used in a jack determine the safe working load of a jack. For lifting applications strand jacks are calculated with a 2,5 safety factor against breaking load to working load. Hydraulic prestressed concrete slab jack systems are available from 30 up to 1.000 tonne capacity. We also provide a full range of accessories like a strand guide, strand dispenser and recoiler. All systems are certified and tested under Lloyd’s witness. Each installation is delivered with an instruction and operation manual in English.    

Modle	Capacity	pressure	Bolt diameter	Cylinder ID	Piston rod OD	Cylinder OD	Stroke	Collapsed height
	KN	MPa	mm	mm	mm	mm	mm	mm
SV-5-5	50	70	22	55	40	75	50	208
SV-10-5	100	70	22	65	50	85	50	204
SV-16-25	160	70	28	100	80	140	250	424
SV-30-20	300	70	40	110	75	140	200	330
SV-45-25a	450	70	45	120	100	160	250	473
SV-50-6	500	70	76	170	150	200	60	250
SV-60-25	600	70	55	140	115	180	250	443
SV-100-20	1000	70	65	170	130	210	200	357
SV-120-20	1200	70	75	200	160	250	200	425
SV-150-20	1500	70	120	230	190	280	200	382
SV-200-20	2000	70	104	240	200	290	200	403
SV-250-20	2500	70	136	305	250	380	200	510
SV-300-20b	3000	70	11	280	200	355	200	450
SV-300-30b	3000	70	100	280	200	355	300	520
SV-500-20	5000	70	165	400	320	515	200	630
SV-600-20	6000	70	165	400	320	515	200	630
SV-600-30	6000	70	165	400	320	515	300	730

       About SOV Hydraulic Technology Co., Ltd.   1. Shanghai SOV Hydraulic Technology Co., Ltd is a manufacturer engaged in design and manufacturing hydraulic cylinders (capacity covers from 10- 1000 tons), synchronous PLC hydraulic system, hydraulic bumps, hydraulic torque wrenches, and electric torque wrenches, and hydraulic components. 

2. Since the establishment in 1995, we successfully transformed from OEM manufacturer for Enerpac, Titan, to create our own brand SOV, and our factory has been approved by CE, ISO9001:2008 consecutively.

3. Our customers includes many big Chinese industrial companies, such as China Petroleum, Baosteel, Sinopec, China State Grid, Jiangnan Shipyards, Sany Group, China Railway Construction Corporation. Our synchronous PLC hydraulic system had played a great role in the China high-speed railway constructions. In 2011, our sales revenue reached 30 million USD, making us one of the leaders in the Chinese hydraulic cylinders market especially in the extra-high hydraulic cylinders for industrial area and construction field.   We are a manufacturer in Hydraulic tools, such as: Hydraulic cylinders, jacks (5-1000ton), single acting and double acting, hollow plunger; Hydraulic/ electric /pneumatic torque wrench (100-72000Nm); Hydraulic bolt tensioner (100-11486NM); Hydraulic pumps, manual and electric type (max up to 3000bar); Integrated hydraulic lifting system solutions ( 4-72 points lifting system for house translation or leveling, bridge supporting and tank welding supporting) Hydraulic nut and couplings. (M50-Tr1000) Our products have been widely used in industrial field such as steel plant, cement industry, chemical and refinery, bridge, railway construction and maintenance.