Adding Thread Length
As an important parallel thread connection technology, the adding length thread connection technology posses following advantage:
1.Wide working range: adaptable for 200mm same diameter, different diameter,
bending, new and old, advance covered up rebar of GB 1499, BS 4449, ASTM A615 or ASTM A706, ACI318,BS 8110, DIN 1045, standard.
2.High strength: stronger than the reinforcement bar and guarantees bar break under tensile stress(tensile strength of connection point =1.1 times of connected bar).It can satisfy the requirements stipulated in the Chinese standard JGJ107-2010,JG171-2005.
3.No reduction of the bar cross section area.
4.Allows full ductile elongation of bars.
5.Easy installation, no torque wrench required.
6.One standard coupler for all splicing requirements (Standard/Position).
7.Manufactured under strict quality assurance plan, ISO 9001 and ASME certified.
8.Full traceability of material origin and production batch.
9.Type 2 coupler suitable for seismic areas.
10.Tested under reverse-cyclic conditions.
11.Solves bar congestion problems.
12.No staggering of spliced bars required.
2.Description of adding length rebar couplers:
Adding thread length connection means process long thread on rebar end for special condition, such as two rebars can not be rotated and pulled, such as those in rebar cage.
Use rebar threading machine to thread the forged ends, make sure the thread length should be equal to coupler length, if want to use nut, please make sure the thread length equal to coupler length adds nut length.
|Bridge Project||Hangzhou Bay Crossing Sea Bridge, Jiangyin Yangzi |
River Bridge, Jiangsu Runyang Bridge,etc.
|Commercial Building Project||Burj Khalifa Tower, Oriental Pearl tower, Saraya Tower, |
|Public Project||Beijing Capital Airport, Qinshan Nuclear Power Plant, |
GaziBarotha Hydropower Station In Pakistan, North
Jeddah Water Pump Station, Dubai Metro, Suzhou Gymnasium,etc.
4.What makes us successful
A. Shorten your engineering period -- the two rebars can be connected within 35 seconds;
B. Catch the highest quality -- 100% broken rebars, no safty worrying, can past any safty quality test;
C. Save rebars -- give up weld and colligation rather than our connecting methods,
can save many rebars materials.
5.Specification of rebar couplers:
|The Parameter For Standard Coupler (MM)|
|Steel bar Diameter(MM)||12||14||16||18||20||22||25||28||32||36||40|
|Out Dia.of Coupler(MM)||20||22||26||29||32||36||40||44.5||50||56||62|
|Inner Dia.of Coupler(MM) ||11.9||13.9||17.4||19.4||20.9||23.9||26.3||29.3||31.8||34.8||40.3|
|Length of Coupler(MM)||30||34||40||44||48||52||60||66||72||80||90|
|Size of Thread(MM)||M14*2||M16*2||M20*2.5||M22*2.5||M24*3||M27*3||M30*3.5||M33*3.5||M36*4.0||M39*4.0||M45*4.0|
6.Why choose JBCZ
1, High strength: the strength reach Grade I , stronger than the
reinforcement bar and guarantees bar break under tensile stress
(tensile strength of connection point =1.1 times of connected bar).
It can satisfy the requirements stipulated in the Chinese standard
2 ,Wide working range: adaptable for Φ12mm-Φ50mm same diameter, different diameter, bending, new and old,
advance covered up rebar of GB 1499 , BS 4449 , ASTM A615 or
ASTM A706 standard.
3,High efficiency: upset forging and threading one joint only needs
no more than one minute, and handy operation
and quick link.
4,Environmental protection and economy profit: no
environment pollution, can work all day, not affected by
weather, economize energy source and bar material.
Q: Are you trading company or manufacturer ?
A: We are factory. We are the FIRST manufacturer of rebar coupler since 1987.
Q: How long is your delivery time?
A: Generally it is within 5-10 days if the goods are in stock. or it is within 15-20 days if the goods are not in stock, it is according to quantity.
Q: Do you provide samples ? Is it free or extra ?
A: Yes, we could offer the sample for free charge , but clients do not need to pay the cost of freight.
Q: What is your terms of payment ?
A: Payment 100% in advance. Can communicate.
B:All the payment go through Aliababa Onetouch or Alibaba assurance payment