High Speed Rebar Thread Rolling Machine

Powerfull roll thread (not cutted thread) could protect the highest tensile strength of bar metal. It meets requirements in JGJ107, ACI318, BS8110, DIN1045 and UBC1997 etc. We can provide you samples for quality inspection. If you order to us, we promise the quality, if some quality problem happened, we can have a negotiation of the compensation and sign agreements ,and our after-sales department will perform the duties as the agreements.

Product Description

1. It can process rebars of HRB335, HRB400and HRB500 with diameter from 12mm to 50mm;
2. One handpiece to process left-handed and right-handed thread, which is quite easy to operate and maintain. The cutting tool can be replaced within only 3-5 minutes.
3. High production efficiency, 300 to 500pcs of thread could be produced during one shift;
4. Rolling wheel has long service period, low additive cost of connector.

Main Parameter of the Equipment

Model: Standrad coupler Max Thread Length: 70mm
Thread Pitch 2.0mm,2.5mm,


4.0mm, 4.5mm

Rebar Diameter: 12-50MM
Thread Angle 60°/75°,Customized Motor Speed: 1440r/min
Thread Type: Parallel Thread Rated Speed 62r/min
Motor Power: 4KW/5.5KW Reduction Ratio: 1:17/1:23
Voltage: 380V/220V/415V Net Weight: 400kgs
Color: Blue/Customized Package: Wooden Case/As Customers’ Request
Dimension: 1330*640*1280mm Certification: ISO9001
Operation Flow 1 Rip Peeling of Rebars

2 Rolling Parallel Threads on Rebar Head

Applied in 1 Constructions

2 Nuclear power station

3 Railway station

4 Power transmission tower; etc

Our Services:

  1. We will supply our best services no matter what problem you meet;
  2. Except standard products,we can design and produce products as per customers’ requirement to satisfy corresponding market;
  3. Powerful control of the machine production schedule and quality, and keep you posted about details in time;
  4. For technical support, we can help you online by email and phone, Engineers are available to service;
  5. Accurate confirmation before shipment.
  • Rebar Diameter : 14-57mm
  • Motor Power : 4.0kw
  • Voltage : 3-380V 50HZ
  • Spindle Speed : 49-62r/min
  • Max Thread Length : 65mm
  • Max Output Torque : 530kn
  • Cooling Pump Power : 40w
  • Weight : 420kg±5kg
  • Dimension : 1250*700*1040mm
  • Package : iron frame or wooden

Fast Worldwide Shipping

Kalkhedon Coupling & Construction Delivery ships world wide. We deliver the rebar couplers fast to your storages of building materials  prior to departure, or directly to your construction object  at its destination.

Kalkhedon’s technologies provide a systems for increased speed of all construction works. Easy connection by bar rotation until full thread engagement. Even when both bars cannot be turned, the Kalkhedon system uses a standard reinforcement coupler (exactly the same as used for standart couplers ):

The coupler is fully engaged onto the extended thread of the connecting bar. The assembly is simply completed by butting the bars end to end and screwing back the coupler onto the first bar until full engagement.

This assembly method is similar to standard rebar couplers, with the addition of a lock-nut to maintain the second bar in position.

Bridging splice
When the bars cannot be brought butt to butt (as it may happen in cages manufacturing), bridging splices are the answer. Both bars are threaded with a standard Kalkhedon® thread, and a “Bridging Assembly Set” is used to connect them.

Transition splice
When there is a need to splice bars of different sizes, it is allowable in most cases to reduce the size of the larger bar and to use a standard coupler. However the system also proposes special transition couplers that conveniently avoid the difficult task of planning in advance the need of transitions.

End anchors
A convenient alternative to hooked bars to provide end anchorages in congested areas. Kalkhedon standard anchorage heads are circular and have a net bearing area of 4 times or 9 times the cross-section of the bar, but can also be made to order in other shapes or dimensions to fit the application requirement.

Weldable couplers
For composite construction where concrete reinforcement bars must be welded to structural steel, use Kalkhedon weldable couplers, which are specially made from low carbon steel and which have a large chamfer for bevel welding.