Feed Through Jack for Prestressing (YDC650)

• Standard or Nonstandard: Nonstandard
• Feature: Flame-Retardant, Anti-Static, Oil-Resistant, Cold-Resistant, Corrosion-Resistant, Heat-Resistant, Alkali-Resistant, Skid-Resistance, Wear-Resistant, Acid-Resistant, High Temperature-Resistance
• Application: Textile Machinery, Garment Machinery, Conveyer Equipment, Packaging Machinery, Electric Cars, Motorcycle, Food Machinery, Marine, Mining Equipment, Agricultural Machinery, Car
• Model NO.: YDC650
• Surface Treatment: Chrome Plating
• Material: Cast Iron
• Condition: New
• Certification: ISO9001: 2000
• Machining Process: Hydraulic
• Type: Prestressing
• "Rated Tension: 650kn
• Stroke: 200m
• Weight: 65kg
• Transport Package: Wooden Box
• Specification: 1
• Trademark: CMEC
• Origin: China

Product Description

Introduction

YDC series prestressing jacks 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 cylinder, 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.

In the word, the YDC series feed-through jacks' performance is improved, and widely used in pre-stressing and post-stressing construction.

Notice: According to users' requirement, YDC through jack can be configured preventing turn device which can prevent jack from rotating in the process of stressing.
Choosing the specification of prestressing jacks should consider the following tips:
1, The stressing of jack should meet the construction requirement, however, consider the impedance loss that produce after filling seal ring and bracing impedance loss between jack and piston, the jack force is about 95% of rated value. If jack need conduct strictly and continuous, the shipping ton of jack should higher than load tonnage, and is calculated per 80% of rated value.
2, The diameter of center hole is bigger above 17mm than the diameter of Max. Cone hole concentric circle of working anchor.
3, For convenient of lectotype, we calculate and make the specification table of lectotype according to the tendon with standard strength of 1860Mpa and diameter of 15.24mm, and the control force of 0.85Fptk.

Product Parameters

 

Model	Weight	Rated Tension	Stroke	Rated oil pressure	Tension cylinder area	Center hole dia.	Size	Return cylinder area	Minimum work space	Obligate length
	kg	KN	mm	MPa	mm2	mm	mm	mm	mm	mm
YDC650	65	650	200	48	13744	75	200× 355	7834	1300× 120	600
YDC1100	80	1100	200	59	23566	84	240× 350	13744	1300× 130	600
YDC1500	110	1500	200	47	32044	94	270× 373	16100	1300× 150	650
YDC2000	130	2000	200	56	35796	110	296× 375	17662	1300× 170	650
YDC2500	180	2500	200	52	48381	128	340× 387	28039	1400× 180	650
YDC3000	220	3000	200	55	54950	155	380× 387	31321	1450× 220	700
YDC3500	250	3500	200	52	67824	165	415× 390	34618	1500× 240	700
YDC4000	320	4000	200	49	81954	175	445× 390	42704	1500× 240	700
YDC5000	400	5000	200	52	96948	200	495× 390	58090	1600× 270	750
YDC6500	550	6500	200	50	131900	250	590× 550	75162	1600× 320	750
YDC9000	1150	9000	200	54	165790	275	670× 500	110270	1650× 350	800
YDC12000	1650	12000	200	54	231299	280	790× 500	115375	1800× 410	800

 

Detailed Photos