Hollow Hydraulic Prestress Monostand Jack

• Customization: Available
• Type: Hydraulic Jack
• Structure: Pneumatic Jack
• Model NO.: QYC
• Capacity (Load): 27 Tons
• Power Source: Electric
• Certification: CE, ISO 9001:2000
• Condition: New
• Color: Customised
• Certificate: Ce and ISO
• Material: Alloy Steel, Casting Iron, Steel , Plastic.
• Usage: Uildngs, Railway, Highway, and Other Prestresses C
• Transport Package: Standard Export Package with Cartons
• Specification: CE, ISO, SGS
• Trademark: Leadcrete
• Origin: Henan, China(Mainland)
• HS Code: 84254210
• Production Capacity: 10000 Sets Per Month

Product Description

Hollow Hydraulic Prestress Monostand Jack

1. QYC front-end fixed hydraulic jacks have internal re-usable anchor which can automatically clamp and loosen the wedge.

2. They are mainly used for LYM15 and LYM13- type various single tensioning with bonded and unbonded.

3. Notice: QYC type front-end fixed hydraulic jacks could be matched with different size, length of the top cover, retreat anchor device, to used in the experiment by root tension pre-tightening, tension retreat anchor and stay cable tone with single cable.
The features of QYC type front-end fixed jacks

The prestressed concrete hydraulic jack for achors and pc strand are the new designed products in our company, are the upgrades of the primary jacks.

Features:
1. Using the new seals, to synchronous strengthen the seal-ability under great pressure.

2. Using special alloy steel with heat treatment process, reducing the cylinder's expansion ratio in the tensioning process. So that the life of seals and sealing performance can be improved about 20%.

3. In the tensioning the operating process, jacks is easily damaged under overpressure because of the jack-based pullback clinder, so we added the overpressure valve on the jacks to pressure production. Meanwhile we improved the original of commonly used structure by wire disc and flanged disc, to make the bearing capacity for oil pressure strengthen. So that enormously reduce the possibility of mechanical damage due to improper operation.


Notice: According to users' requirement, prestressed concrete jack for achors and pc strand can be configured

Picture of monostrand jack




Technology data of monostrand tension hydraulic jacks
 

Parameter table of QYC front-end fixed hydraulic jack
Model	Nominal tensionin	Diameter of minimum centre hole	Area of stressing cylinder	Stroke	Rated oil pressure	Overall dimension		Minimum working space(mm)		The reserved length of strand
	KN	mm	mm²	mm	Mpa	out dianeter(mm)	length(mm)	L	E	mm
QYC70	74	10	1437	150	50	63	296	616	54	120
QYC240	240	18	4009	200	60	102	425	825	86.7	200
QYC270	270	18	4415	200	61	105	427	827	89	200
QYC1100	1100		22619	200	49	265	336
QYC2000	2000		42332	200	48	355	386
QYC3000	3000		61575	180	49	415	402