KYA supplies automatic rebar tying machines and compatible tie wire for concrete contractors, precast plants, construction equipment distributors and industrial buyers. Cordless rebar tiers help secure reinforcing bars and mesh before concrete placement, reducing repetitive manual tying work on construction projects.
The KYA range includes KYA-590 and KYA-890 rebar tying tools using 0.8mm wire, as well as KYA-460 and KYA-660B twin-wire tying tools using 1.0mm wire. Select a model according to the actual bar combination, tying mechanism, wire reel and battery requirements. The video above shows an earlier KYA rebar tying tool; current product specifications are provided below.
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Compare published technical specifications for the KYA models below. The stated tying ranges are shown in each product's original notation; they do not necessarily describe identical rebar joint configurations. Battery output and tying speed may vary with wire, bar combination and jobsite conditions.
| Specification | KYA-590 | KYA-890 | KYA-460 | KYA-660B |
|---|---|---|---|---|
| Tool type | Automatic rebar tier | Automatic rebar tier | Automatic twin tier | Automatic twin tier |
| Published tying range | 8–34mm | 8–34mm | Maximum 46mm | Maximum 66mm |
| Battery voltage and capacity | 12.8V / 2.2Ah | 12.8V / 4.4Ah | 18V / 5.0Ah | 18V / 5.0Ah |
| Published tying speed | 0.8 sec/tie | 0.8 sec/tie | 0.6 sec/tie | 0.6 sec/tie |
| Published ties per charge | Over 1,500 | Over 3,000 | Over 4,600 | Over 4,600 |
| Published charge time | Approx. 90 min | Approx. 90 min | Approx. 70 min | Approx. 70 min |
| Specified wire diameter | 0.8mm | 0.8mm | 1.0mm | 1.0mm |
| Published tying wraps | 2 wraps | 2 wraps | 1 twin wrap | 1 twin wrap |
The KYA-590 and KYA-890 are cordless tools for repetitive rebar and reinforcement mesh tying. Both product pages specify 0.8mm wire, approximately 0.8 seconds per tie and a published 8–34mm tying range. The KYA-890 has a higher specified battery capacity and a higher published number of ties per charge than the KYA-590.
These tools can be considered for construction reinforcement, precast work and floor-heating mesh installation. For projects with unusual bar configurations, provide the bar dimensions and intended joint arrangement before selecting a machine.
The KYA-460 and KYA-660B use a twin-wire feeding design and 1.0mm tying wire. KYA publishes an 18V 5.0Ah battery, approximately 0.6-second tying speed and more than 4,600 ties per charge for both models.
The KYA-460 is specified with a maximum tying diameter of 46mm, while the KYA-660B is specified up to 66mm. The larger capacity of the KYA-660B may be useful for selected heavy reinforcement intersections. Confirm the actual bar combination against the applicable model's jaw design rather than relying only on a single diameter figure.
The correct tying capacity depends on the number of intersecting bars, their individual diameters and the available space around the intersection. Provide the actual sizes, such as two crossed bars or a multi-bar joint, when asking KYA to recommend a model.
KYA-590 and KYA-890 specify 0.8mm wire, whereas KYA-460 and KYA-660B specify 1.0mm wire. Wire diameter alone does not confirm interchangeability: reel shape, spool dimensions, feed arrangement and wire type must also match the machine.
For frequent tying on large jobsites, consider the model's published ties per charge, approximate charging time and access to replacement batteries. Actual results depend on rebar configuration, tying conditions, battery condition and operating environment.
For fleet procurement, review wire reel requirements, cutter maintenance, battery arrangements, user instructions and service parts. Always switch off the machine and remove its battery before inspecting a jam or performing maintenance, following the model's operating instructions.
Concrete foundations, slabs and reinforced walls
Precast concrete and reinforcement cage assembly
Road, bridge and civil engineering reinforcement work
Steel mesh and floor-heating installation
Retaining walls and other reinforcement-intensive projects
An automatic rebar tier temporarily secures reinforcing steel during assembly and concrete placement. The tool does not replace specified structural connections or the project's reinforcement design requirements.
KYA also supplies rebar tie wire for automatic tying applications. Black annealed, galvanized and coated wire options serve different handling and environmental needs. Confirm the required reel and tool model before purchasing replacement wire.
| Tool series | Published wire diameter | Reel selection |
|---|---|---|
| KYA-590 / KYA-890 | 0.8mm | Match exact machine and reel format |
| KYA-460 / KYA-660B | 1.0mm | Match twin-wire feed system and reel format |
The following photograph shows the earlier KYA-400B automatic rebar tier. This specific model is marked as no longer available on its product page. For current project requirements, review the KYA-590, KYA-890, KYA-460 and KYA-660B options above.
To help identify the right rebar tying tool, provide the rebar sizes and joint type, anticipated daily tying volume, preferred model, required wire type, destination market and requested order quantity. If consumables are required, include the machine model and reel specifications.
Send Your Rebar Tier Requirements
An automatic rebar tier wraps and twists tie wire around reinforcing bars or mesh to hold reinforcement in position during assembly before concrete placement. It is used in foundations, precast work, walls, slabs and other reinforced concrete projects.
A twin tier uses a dual-wire feeding system to form a tie. KYA-460 and KYA-660B are twin-tier models, while KYA-590 and KYA-890 are standard automatic rebar tying machines. Tool designs and supported reels differ between the systems.
KYA publishes a maximum tying diameter of 66mm for the KYA-660B and 46mm for the KYA-460. The correct selection still depends on the number, diameter and arrangement of bars at the joint.
The KYA-590 and KYA-890 product specifications list 0.8mm tie wire. KYA-460 and KYA-660B list 1.0mm twin-tier wire. Always confirm reel compatibility for the exact machine model.
Published values range from over 1,500 ties for the KYA-590 to over 4,600 for the KYA-460 and KYA-660B. KYA-890 is specified at over 3,000 ties. Actual output depends on tying conditions and battery use.
Not necessarily. Besides wire diameter, the reel housing, spool dimensions, hub configuration and feeding mechanism must match the machine. Provide the exact model when purchasing replacement coils.
Yes. Automatic tying can be useful for repetitive reinforcement positioning in precast concrete work, provided the chosen tool accommodates the reinforcement arrangement and the plant's procedures.
Specify the required model or bar combination, quantity, destination country, battery requirements and whether compatible tie wire is needed. This helps KYA review the requested configuration.
KYA Fasteners works with construction equipment buyers, tool distributors and professional reinforcement contractors seeking automatic rebar tying machines and compatible consumables. Contact the team with your project details to discuss appropriate models and purchasing requirements.
