Changsha DLADTO Rebar Splice Co., Ltd

Many customers may want to know how many steel wire heads can your   straight thread rolling machine   make in one hour before purchase threaded rolling machine. Straight threaded rolling machine manufacturers DLADTO are here to explain this issue to you. First, how many thread heads a thread rolling machine can rolls in an hour is determined by the motor and reducer of the machine. Also, it is determined by the type of steel bar too. Sure. Now that, we will introduce you the types of threaded rolling machines that used in the market. HGS-40 Ordinary Straight Thread Rolling Machine--Adopts 4.5kw motor and reducer at a rate of 1:19, suitable for processing 16, 18, 20, 22, 25 HRB400 steel bars. The number of processing per hour is about 400-800 pcs. HGS-40 Reinforced Rebar Threading Machine--It adopts 5.5kw motor and reducer with a speed of 1:17, which is able to processing all specifications of HRB400 steel bars. The number of processing per hour is about 300-1000 pcs. If the processing

Rolled straight threaded rebar splice   is the joint formed by rolling the end of the steel bar or the extrusion (rolling) of the rib rolling or the stripping of the rib and the rolling of the straight thread and the thread of the connecting piece. The basic principle is to use the characteristics of metal materials that are plastically deformed and then cold hardened to enhance the strength of metal materials, and the plastic deformation and cold hardening occur on the surface of the metal, while the performance of the original metal is still maintained inside the metal, so that the steel bar joint and the base metal reach equal strength. There are three types of rolled straight threaded rebar splice: direct rolled threaded, extruded (rolled) rib rolled threaded, and stripped rib rolled threaded. The threaded accuracy and size obtained by these three types of connection joints are different, and the quality of the joints also different.

Workers may encounter the problem that the  rebar sleeve  cannot be screwed on the wire head during the construction. Why the threaded steel sleeve cannot be tightened? Here let's talk about the reason: 1. The threaded pitch of rebar sleeve is different from that of the wire head. The pitch of Φ16, Φ18, Φ20, Φ22 rebar sleeve is 2.5mm, and Φ25, Φ28, Φ32, Φ36 rebar sleeve is 3.0mm. The pitches of Φ40 steel sleeves are 3.0mm and 3.5mm. 2. The tooth angle of the rebar sleeve of the steel bar is different from the tooth angle of the steel wire head. There are two types of rebar sleeve with tooth angles of 75° and 60°. 3. The wire hood is too big. Due to the insufficient adjustment accuracy of the rolling mill during the threading process, there will be deviations. The wire head cover is too large, or the gear plate of the steel bar rolling machine is not compressed, and the eccentric shaft of the rolling machine has moved. Above are reasons may cause the threaded rebar sleeve fail to be