#upsetting rebar coupler

[dladto]

Advantages of Rebar Upsetting Machine

Advantages of rebar upsetting machine:

1. Simple operation, hydraulic and electrical control, no need for professional skills, and it can be turned on and operated after short-term training.

2. Expand the cross-sectional area of the end of the steel bar by 15-20%, so that the bottom diameter of the processed thread is not less than the diameter of the base material of the steel bar. 

3. The steel bar upsetting machine has high production efficiency, upsetting 1 end in 10-15 seconds. 

4. The processing range of steel bars is wide, and the steel bars with diameters of 16-40 can be processed. 

5. It has the advantages of light weight, generous appearance, fast speed and flexible use. 6. The steel upsetting machine is environmentally friendly, safe and not affected by the environment and climate

[rmengineers-biscertified]

Rebar Couplers for faster, safer and stronger connections.

[321arka]

In the realm of construction and engineering, the proper connection of reinforcing bars (rebars) is critical to ensuring the structural integrity and strength of various concrete structures. Traditionally, rebar splicing has been accomplished through the labour-intensive method of lapping rebars, which involves overlapping the bars and tying them together with wire.

However, with advancements in technology, mechanical couplers have emerged as a more efficient and reliable alternative for connecting rebars.

Mechanical couplers are innovative devices that provide a quick, sturdy, and cost-effective solution for rebar splicing. In this article, we will explore the uses, types, advantages, and disadvantages of mechanical couplers, as well as the methods of their application and how they serve as an alternative for lapping rebars.

I. What are Mechanical Couplers?

A mechanical coupler is a device designed to join two rebars together without the need for time-consuming and labour-intensive traditional methods like lapping. It is essentially a threaded sleeve that houses the ends of two rebars and connects them through a mechanical process. These couplers are typically made from high-strength steel and are precisely manufactured to ensure precise alignment and load transfer between the two rebars.

II. Types of Mechanical Couplers

1. Threaded Couplers: Threaded couplers are among the most common types of mechanical couplers. They consist of a cylindrical sleeve with internal threads on both ends, allowing it to be screwed onto the threaded ends of the rebars. Threaded couplers come in various designs, such as parallel threaded couplers, tapered threaded couplers, and positional couplers.

2. Grout-Filled Couplers: Grout-filled couplers are designed to be filled with a special grout material that bonds the rebars together within the sleeve. The grout enhances the load transfer capacity and provides corrosion protection for the rebars.

3. Weldable Couplers: Weldable couplers are particularly useful in pre-fabrication applications. They have end plates that can be welded directly to the rebars, creating a robust connection.

4. Upset Couplers: Upset couplers involve enlarging the ends of the rebars through a process known as upsetting. The enlarged ends are then inserted into the coupler and secured with a locking mechanism.

III. Advantages of Mechanical Couplers

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Introduction of Upsetting Forging Threaded Rebar Coupler

 ADTO is a professional manufacturer of rebar connection systems including Threading Roller Rebar Coupler, Upsetting Forged Rebar Coupler, Cold Extrusion Rebar Coupler, Grouting Rebar Coupler, One Touch Coupler, etc., ranging from 10mm to 50mm.

Upsetting forging Threaded rebar coupler, also known as rebar splicer, rebar connector,  mechanical rebar coupler, etc., is a building material usually used in the conjunction of reinforcement steel bars. Upsetting type rebar coupler is a kind of parallel thread coupler that can enlarge the minimal diameters of a piece of rebar by cold forging them and then cutting the thread. The product features: 

1. No reduction of bar cross-section area and avoid bar–break 

2. Easy and fast installation, No need for torque wrench.

3. Assembly validated by visual inspection

4. Standard ISO parallel Metric Thread Design.

5. Much safer and quicker than lap splicing or welding splicing.

If you have any interests or demands on our products, please feel free to contact us. 

[suryaengineeer2000]

Rebar Cold Forging Machine is mainly used for the upsetting of ribbed steel bars in construction projects and is the key equipment for realizing the connection of steel bars. The equipment is used in the connection of steel bars to ensure the quality of the connection. Its main function is to squeeze the piercing of the reinforced steelhead of the building to increase the diameter of the steelhead and increase the tensile strength. Rebar cold forging machine is compulsory norms as par IS code 16172. By using cold forging machine the in part of rebar get in large by which molecular structure become compact by which tinsel result increase after a trading operation. As per Standard, by using the Cold forging system we get a result of 625 megapixels. Rebar cold forging machine is generally used for a dam, irrigation project, nuclear project, NH highways. Rebar cold forging machine is designed in the range of 12 mm to 40 mm. machines operations are done with a hydraulic system.

[adtomall1998]

The Mechanical Splices For Concrete Rebar

Mechanical splices are used to establish a mechanical connection between two pieces of reinforcing steel in concrete construction for joining reinforcing bars. The mechanical splicing system aligns and secures the joined rebar ends in an in-line connection suitable to meet appropriate splice requirements.  

Mechanical splices are being adopted in project sites due to their flexibility of use in congested reinforcement places at construction joints. These connections are also more reliable than the lap systems because they do not depend on the concrete for load transfer. The splices also allow structural designers to achieve an ideal balance of steel and concrete by eliminating the additional rebar lap zone by meeting building code requirements in many areas. In seismic prone zones, these splices provide structural engineers the ability to design and build concrete structures that meet or exceed today’s stringent construction codes and federal regulations regarding seismic frame construction.

#1 Advantages of Mechanical Splices for Concrete Rebar

a. Maintains load path continuity of the reinforcement, independent of the condition or existence of the concrete.

b. Does not rely on the concrete for load transfer and therefore maintains structural integrity.

c. As mechanical splices do not overlap, less rebar is used, reducing some of the material costs.

d. It reduces the rebar congestion by decreasing the rebar in the lap zone and simplifying bar placement

e. Using mechanical splices allows the option of larger diameter rebar in a smaller column while minimizing congestion

f. Decrease the possibility of pockets and voids in the concrete

g. Provides higher performance than typical design lengths for lap splices

h. Allows the structural designers to achieve an ideal balance of steel and concrete by eliminating the additional rebar in the lap zone

i. Eliminates lap calculations

j. Eliminate the cost of breaking away massive amounts of concrete.

k. Faster installation

l. Reduces crane use

m. Limits drilling of formwork

#2 Different types of mechanical splices

1．Coupler for Thread-Deformed Bar

2．Upset Straight Thread Coupler

3．Non- upset thread Coupler

4．Cold-Swaged Threaded Coupler

5． Taper-Threaded Coupler

6．Straight Threaded Coupler with Upset Rebar Ends

7．Grout-Filled Coupling Sleeve

8．Combo Grout-Filled/Threaded Sleeve

9．Metal-filled coupling Sleeve

10．Cold-Swaged Coupling Sleeve

11．Shear Screw Coupling Sleeve

12．Coupling Sleeve with Double Wedge

13．Coupling Sleeve with Shear Bolt/Wedge

14．Dowel Bar Mechanical Splice

15．Compression-only Mechanical Splice

Applications of mechanical splices

A. Tunnels

B. Bridges

C. Commercial buildings

D. High-rise buildings

E. Subway

F. Airports and many more

G. Conclusion

Working with small diameter reinforcing bars may require the use of larger column dimensions to accommodate a greater quantity of bars. Using mechanical splices allows the structural engineers the option of using larger diameter rebars in the smaller column while minimizing congestion. All the advantages are discussed above and there are many types of mechanical splices available in the market, choose the right one as per project needs. Go for experienced manufacturers ADTOMall to find high-quality rebar splices.

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Four Different Types of Rebar Mechanical Splices

Four Different Types of Rebar Mechanical Splices

#1 Coupler for Thread-Deformed Bar This type of deformed bar comes with special bars with thread-like rolled deformations. These are assembled with lock nuts and threaded couplers, then the nuts are tightened to the specified torque. #2 Upset Straight Thread Coupler Upset Straight Thread Coupler is used to produce a full-length mechanical joint between reinforcing bars with upsetting ends. It…

[my-job-seeker]

Prominent & Leading Manufacturer from Mumbai, we offer Rebar Cold Forging Machine, Rebar Upset Cold Forging Machine, Tmt Rod Forging Machine, TMT Bar Cold Forging Machine, Hydraulic Rebar Cold Forging Machine and Rebar Forging Machine. Hydraulic Rebar Forging Machine is used in Building Construction to forge end of TMT Bar before threading Operation. Rebar Forging Machine is mainly made up with Hydraulic system polyhedron and Mechanical cylinder .

[rebarsplicingsolution]

Prominent & Leading Manufacturer from Mumbai, we offer Rebar Cold Forging Machine, Rebar Upset Cold Forging Machine, Tmt Rod Forging Machine, TMT Bar Cold Forging Machine, Hydraulic Rebar Cold Forging Machine and Rebar Forging Machine.. Our range of products include Taper Rebar Coupler, Cold Forged Rebar Coupler Type II, Steel Rebar Coupler, Cramping Rebar Coupler, MBT Rebar Coupler and Bar Break Rebar Coupler.

[summerwang]

As a professional rebar processing machinery manufacturer, we have a series of steel bar machinery for sale. Our product mainly includes rebar straightening and cutting machine, rebar bending machine, rebar bender for sale, scrap rebar straightening machine, automatic steel bar cutting machine, steel bar straightening machine, rebar upsetting machine, thread rebar couplers, etc. What kind of rebar related machine do you need? Please feel free leave your requirements.

[dladto]

Specifications and Models of Rebar Coupler

​Steel Bar mechanical splices include various types: parallel threaded rebar coupler, upsetting forged rebar coupler, cold extrusion rebar coupler, grouting rebar coupler, split-type rebar coupler and so on. Parallel threaded rebar coupler can be divided into rib stripped parallel rebar coupler and parallel threaded coupler for splicing rebars with threads roll on to rebar end. Regardless of the type of coupler, the specification is named after the specification of the steel bar to which it is connected. For example, the coupler connecting 25mm steel bar is called the 25mm coupler.

At present, the specifications of rebar couplers are 12, 14, 16, 18, 20, 22, 25, 25, 32, 36, 40, 50, and there are also left and right hand thread rebar coupler and coupler with different inner diameter. For example, 25/28 left and right hand thread rebar coupler; 28/22 different inner diameter rebar coupler.

In the process of using mechanical splice, the specifications and models of the rebar coupler will be involved. It is imperative that customers and users specify their requirements that we can offer a better service. ADTO supplies 10mm to 50mm rebar couplers to meet your needs, besides, our products are customizable.

[rmengineers-biscertified]

[321arka]

In the realm of construction and engineering, the proper connection of reinforcing bars (rebars) is critical to ensuring the structural integrity and strength of various concrete structures. Traditionally, rebar splicing has been accomplished through the labour-intensive method of lapping rebars, which involves overlapping the bars and tying them together with wire.

However, with advancements in technology, mechanical couplers have emerged as a more efficient and reliable alternative for connecting rebars.

Mechanical couplers are innovative devices that provide a quick, sturdy, and cost-effective solution for rebar splicing. In this article, we will explore the uses, types, advantages, and disadvantages of mechanical couplers, as well as the methods of their application and how they serve as an alternative for lapping rebars.

I. What are Mechanical Couplers?

A mechanical coupler is a device designed to join two rebars together without the need for time-consuming and labour-intensive traditional methods like lapping. It is essentially a threaded sleeve that houses the ends of two rebars and connects them through a mechanical process. These couplers are typically made from high-strength steel and are precisely manufactured to ensure precise alignment and load transfer between the two rebars.

II. Types of Mechanical Couplers

1. Threaded Couplers: Threaded couplers are among the most common types of mechanical couplers. They consist of a cylindrical sleeve with internal threads on both ends, allowing it to be screwed onto the threaded ends of the rebars. Threaded couplers come in various designs, such as parallel threaded couplers, tapered threaded couplers, and positional couplers.

2. Grout-Filled Couplers: Grout-filled couplers are designed to be filled with a special grout material that bonds the rebars together within the sleeve. The grout enhances the load transfer capacity and provides corrosion protection for the rebars.

3. Weldable Couplers: Weldable couplers are particularly useful in pre-fabrication applications. They have end plates that can be welded directly to the rebars, creating a robust connection.

4. Upset Couplers: Upset couplers involve enlarging the ends of the rebars through a process known as upsetting. The enlarged ends are then inserted into the coupler and secured with a locking mechanism.

Read more

[suryaengineeer2000]

Rebar Cold Forging Machine is mainly used for the upsetting of ribbed steel bars in construction projects and is the key equipment for realizing the connection of steel bars. The equipment is used in the connection of steel bars to ensure the quality of the connection. Its main function is to squeeze the piercing of the reinforced steelhead of the building to increase the diameter of the steelhead and increase the tensile strength. Rebar cold forging machine is compulsory norms as par IS code 16172. By using cold forging machine the in part of rebar get in large by which molecular structure become compact by which tinsel result increase after a trading operation. As per Standard, by using the Cold forging system we get a result of 625 megapixels. Rebar cold forging machine is generally used for a dam, irrigation project, nuclear project, NH highways. Rebar cold forging machine is designed in the range of 12 mm to 40 mm. machines operations are done with a hydraulic system.

[adtomall1998]

Different Types of Rebar Mechanical Splices

There are many types of rebar mechanical splice in the construction materials market. Basically, they can be divided into the following categories.

Based on the category of ‘tension- compression’, ‘compression only’ and ‘tension only’ there are different types of rebar mechanical splices available. Each of them is explained below.

1．Coupler for Thread-Deformed Bar

This type of deformed bars comes with special bars with thread-like rolled deformations. These are assembled with lock nuts and threaded couplers, then the nuts are tightened to the specified torque.

2．Upset Straight Thread Coupler

Upset Straight Thread Coupler is used to produce a full-length mechanical joint between reinforcing bars with upsetting ends. It can connect rebars of the same or different diameters laterally, vertically and slantingly. The coupler consists of a coupler with internal straight threads at each end that joins two upset end reinforcing bars with matching external threads.

3．Non- upset thread Coupler

Non- upset thread Coupler consists of internal straight threads at each end that join two reinforcing bars with matching external threads. It is used to reduce the net cross-sectional area of the reinforcing bar. This type of splice comes in three pieces, the two bar ends and the internally threaded coupler.

4．Cold-Swaged Threaded Coupler

Cold-Swaged Threaded Coupler is made of seamless steel sleeves that are placed at the end of reinforcing bars. These are deformed onto the reinforcing bar profile to produce mechanical interlock. This consists of pre-threaded components, which are swaged onto the reinforcing bars using a swaging press with special dyes. Splicing of the bars is completed by installing one pre-threaded component into the other.

5．Taper-Threaded Coupler

Taper-Threaded Coupler is designed for applications that require the joining of reinforcing bars. The compact design of each coupler ensures suitability for use in confined situations where space is restricted or where the loss of cover must be minimised. The couplers are normally supplied fitted to the end of the threaded bar, requiring only the engagement and tightening of the adjoining bar on site.

6．Straight Threaded Coupler with Upset Rebar Ends

Straight Threaded Coupler with Upset Rebar Ends consists of forming heads on the ends of the bars that are connected using a hydraulic machine. It is designed to fit between closely-spaced bars.

7．Grout-Filled Coupling Sleeve

Grout-Filled Coupling Sleeve is filled with grout that provides a mechanical bond between rebar deformations and grooves on the inside of the sleeve. This is filled with a cement-based, non-shrink, high-early strength grout. The range comprises two standard coupler types: Full-grout sleeves and Half-grout sleeves.

8．Combo Grout-Filled/Threaded Sleeve

Combo Grout-Filled/Threaded Sleeve is designed for the connection of precast elements. Each sleeve features a threaded end that is used for the connection to reinforcement at the precast element and a wide cavity to perform a grout connection at site. The wide mouth opening of the sleeve allows for minor bar misalignment during erection. The wide mouth also allows for transitioning between different bar sizes.

9．Metal-filled coupling Sleeve

Metal-filled coupling Sleeve is placed end to end in the metal sleeve with a molten metal filler in the tap hole. The filler material flows between the bars and the sleeve, solidifying in the deformations of the rebar and the internal ribs of the sleeve, forming a mechanical interlock.  

10．Cold-Swaged Coupling Sleeve

Cold-Swaged Coupling Sleeve is used for the connection of ribbed rebar. It is made of carbon structural steel and can connect reinforcing bars with a diameter of 16 to 40 mm. The sleeve uses a hydraulic swaging press with a special dye to deform the sleeve around the ends of the spliced reinforcing bars. This produces a positive mechanical interlock with the reinforcing bars.

11．Shear Screw Coupling Sleeve

Shear Screw Coupling Sleeve consists of a coupling sleeve with shear head screws which are designed to shear off at a specified torque.

12．Extruded Coupling Sleeve

Extruded Coupling Sleeve is a cold extruding coupling sleeve that connects two reinforcing bars by extruding a coupler onto the reinforcing bars.  

13．Coupling Sleeve with Double Wedge

This type of sleeve is made of a ductile iron sleeve that consists of two internal wedges. Two series of cone-pointed screws are arranged along the sleeve length.

14．Coupling Sleeve with Shear Bolt/Wedge

Coupling Sleeve with Shear Bolt/Wedge is designed to deliver a quick and simple method of splicing of 12 mm – 20 mm bar. Installation is made in seconds by overlapping the rebar in the steel sleeve and driving the wedge pin between the bars with a portable hydraulic hand tool. The coupling sleeve is oval in cross-section permitting the overlapping of two reinforcing bars of the same diameter in the sleeve.

15．Dowel Bar Mechanical Splice

This is a two-piece, upsized parallel threaded, mechanical splice that eliminates protruding dowels. No welding or machining is required for the installation of this splice and the threading operation does not reduce the nominal cross-sectional area of the bar.

16．Compression-only Mechanical Splice

This type of splice can resist compression stress merely. The compressive stress is transferred by vertical bearing from one bar to another one. Compression only mechanical splices can be used when tension stress does not occur.

Above is all kinds of rebar splice at ADTOMall. For further information, please contact us directly.