Thread rolling machines are dedicated construction machinery built to roll straight threads on ribbed rebar ends, serving as core equipment to achieve reliable rebar straight thread connection on construction sites. A standard rebar threading machine adopts the advanced stripping and rolling craft, completing rib removal and thread forming in a single clamping operation for rebar workpieces. For projects pursuing higher joint tensile strength, thread rolling machines can perfectly coordinate with rebar upsetting machines: first the upsetting machine enlarges the diameter of rebar heads to boost tensile capacity, then the matched rebar thread rolling machine processes qualified threads on the thickened head to form a high-strength integrated connection structure.
Thread Rolling Machines Parameters:
| Model | YGS-40 | YGT-40 | YGA-40 |
| Processing diameter range | 16-40mm | ||
| Thread rolling length | 0-80mm | 0-80mm | 0-100mm |
| Power voltage | 4kw/380v 50hz | 4kw/380v 50hz | 7.5kw/380v 50hz |
| Working efficiency | 15s/forming | 8s/forming | One-touch auto forming |
| Machine weight | 320kg | 350kg | 400kg |
| Machine size | 115*50*106cm | 110*60*130cm | 126*70*106cm |
| Type | Standard type | Upgrade type | Fully automatic type |
Thread Rolling Machines Applications
The YG series machines are used across multiple construction applications:
- Bridge Construction. Bridge girders and deck reinforcement require mechanical splices. The YG series processes the rebar ends for connections between segments, columns, and foundations.
- High-Rise Buildings. Structural frames in high-rise buildings require rebar connections that exceed the parent bar strength. Rolled threads meet this requirement.
- Tunnels and Underground Construction. Tunnel linings and underground structures require rebar connections in confined spaces. The YG series produces the threads needed for these connections.
- Pile Foundations. Pile cages require rebar connections at the splices between cage sections. The YG series handles the threading for these connections.
- Precast Concrete. Precast concrete plants require large volumes of threaded rebar for connections between precast elements. The YG series provides the production capacity needed for these operations.
Advantages of Thread Rolling Machines
Beyond basic threading function, these practical strengths raise on-site construction efficiency and finished product quality noticeably:
- Superior Joint Mechanical Properties: Finished threads gain 20%-30% higher tensile strength, 40%-60% better anti-fatigue performance and 50%-200% improved corrosion resistance compared with raw rebar material;
- Flexible Thread Compatibility: One machine can process both right-hand and left-hand threads to satisfy diverse connection design requirements from different engineering drawings;
- Safe & Eco-Friendly Operation: The whole processing procedure produces no open flame, no fire risk and no harmful emissions, allowing round-the-clock construction in dense urban job sites;
- High Machining Precision: The integrated machine head and automatic cutter opening-closing mechanism ensure full, neat thread tooth shape and consistent dimensional accuracy across all processed workpieces;
- Good Site Mobility: Thickened machine bodies fitted with rubber walking wheels make short-distance relocation between different construction zones quick and effortless.
Matched Workflow With Rebar Upsetting Machines
Most generic product articles only introduce thread rolling machines alone, while the matched workflow brings tangible performance upgrades for high-standard projects, and this pairing forms a mature processing flow:
1. Upsetting Stage: The rebar upsetting machine squeezes and thickens the rebar head to increase the cross-sectional area of the connection part, laying a solid foundation for higher load-bearing performance of the subsequent threaded joint;
2. Thread Rolling Stage: Operators transfer the pre-upset rebar to thread rolling machines, and the one-clamping forming function ensures uniform thread tooth shape on the thickened rebar head;
3. Joint Assembly Stage: Workers fasten the processed rebar joints with standard wrenches on site; no open flame or extra welding work is needed to finish the connection fast.
This combined workflow is widely preferred for high-demand infrastructure projects and outperforms single threading processing in anti-fatigue and corrosion resistance performance.
5 FAQs About YG Thread Rolling Machines
A: Yes. The YG series is designed specifically for deformed (ribbed) rebar. The peeling step removes the ribs before rolling, ensuring a clean, uniform thread profile.
A: The standard models (YGS-40 and YGT-40) produce threads up to 80mm in length. The fully automatic model (YGA-40) produces threads up to 100mm in length. The actual thread length depends on the rebar diameter.
A: YGS-40 and YGT-40 support 0-80mm thread rolling length, while the fully automatic YGA-40 extends the range to 0-100mm to cover extra-long thread processing needs for special connection designs.
A: Yes, all models in the lineup cover the 16-40mm rebar diameter range; compact size does not limit the maximum processing diameter capacity.
A: Ordinary civil construction can use the thread rolling machine alone; pairing with an upsetting machine is recommended for high-standard infrastructure projects to further lift joint load-bearing performance.
Thread Rolling Machine For Sale
With rich experience in construction machinery manufacturing, YG designs and produces each batch of rebar thread rolling machine with strictly selected pure copper motors, brand reducers and wear-resistant jaw parts to guarantee long-term reliable operation under harsh construction site conditions. We supply standard, upgraded and fully automatic rebar threading machine variants, and tailor configuration suggestions according to your rebar diameter, daily output and thread length requirements. Whether you need a portable small thread rolling machine for scattered job sites or heavy-duty automatic equipment for large infrastructure projects, our team can match the right model solution for your project. Share your specific processing parameters with us now to get a detailed, customized quotation and professional equipment selection guidance promptly.
