A thread rolling machines is a mechanical device that uses a cold rolling process to press standard threads onto the surface of metal bars. It uses two or three high-hardness rolling wheels to apply pressure to the workpiece, causing plastic deformation at room temperature, resulting in precise, high-strength threads. Compared to traditional cutting methods, this process is not only more efficient but also improves the tensile strength and surface finish of the thread. It is widely used in the production of standard parts such as bolts and rebar connectors.
Recently, while upgrading my factory equipment, I came across a fully automatic hydraulic thread rolling machine, which was truly eye-opening! Manual threading used to be time-consuming and laborious, with inconsistent accuracy. Now, this small rolling machine, once you insert the rebar, rolls out a neat, shiny thread in seconds. It's quiet and easy to operate. The entire machine is compact and sturdy, the hydraulic system has smooth speed regulation, and changing rolling wheels of different specifications allows it to accommodate a variety of diameters, making it ideal for small-batch, high-variety production. The most surprising thing is that it can be shipped from stock, so after installation and commissioning, it can be put into production immediately, making it worry-free and efficient. For industries such as steel bar processing and hardware manufacturing that have high requirements for thread precision, this machine is simply a productivity accelerator, giving you more confidence when working!
Z28-185 thread rolling machines specification sheet
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Items |
Parameters |
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diameter |
φ60mm |
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thread pitch |
6mm |
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Spindle Angle |
±10° |
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Maximum rolling pressure |
250kn |
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Spindle RPM |
Exchange gear 22/28/35/45/56/70rpm |
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Thread rolling wheel range |
diameter |
φ210mm |
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aperture |
φ75mm |
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Maximum width |
160mm |
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Spindle drive power |
11kw |
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Hydraulic transmission power |
3kw |
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Physical size |
1800×1600×1450mm |
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Machine weight |
2100kg |
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Yushi thread rolling machine advantages compared with other supplier
The sliding base plate is thickened, with the thickness increased by about 40% compared to the original, making it more stable and durable. The top part is made of ductile iron casting. The sliding track uses tapered strips and a dovetail structure, making the slide rail more stable and durable during operation.
This tool uses a worm gear to adjust the stroke, which can achieve fine adjustment of the thread depth during workpiece processing. The handwheel only adjusts 0.2mm with one full rotation, while the original one adjusted 3-6mm with one rotation, a difference of 15-30 times in adjustment accuracy. The adjustment of the mold distance is very rough, and if the thread depth is slightly different, it is difficult to adjust. Either it is adjusted too deep and the material bounces up, or it is adjusted too shallow and it is difficult to tighten the nut.
The original 39mm diameter return rod with spring was replaced with an 80mm diameter double-acting hydraulic cylinder piston rod. The original rod was prone to breakage when performing heavy lifting or prolonged tasks, posing a safety hazard if someone was standing near the machine and could be injured. The improved model eliminates this issue of return rod breakage.
The hydraulic structure is bidirectional hydraulic, with high pressure for forward movement and low pressure for reverse movement during operation. Both forward and reverse movements are hydraulically controlled, achieving separation of high and low pressure, protecting the equipment, and reducing oil temperature. The hydraulic system is the same as that of the Z28-200, Z28-260, and Z28-280 large thread rolling machines, making it more stable and durable.
Company Profile
Packing & Delivery for Thread Rolling Machine
Packaging : standard export wooden case packing. you can by sea or air. We have our own farwarder. We can check the delivery information timely. You can also use forwarder by yours. We will contact with him ASAP.
Delivery time:6-10 days after receiving the deposit.
FAQ
Q: How to choose a thread rolling machines?
A: Usually, manufacturers have a fixed model parameter reference table. As long as you tell the manufacturer the style and requirements you want to roll, they will select the appropriate model for you. But some people want to understand the general situation first and don't want to be told by others, so how can they choose it themselves? In fact, the technical parameters of the thread rolling machine mainly depend on the diameter range of the processed parts. The thicker the part, the larger the thread rolling machine is required, and the thinner the workpiece, the smaller the model. The power of the thread rolling machine should also be understood. This is related to the length of the workpiece. The larger the workpiece, the greater the power consumption. If the model is too small, not only will the thread pattern not be rolled out, but the power will not be able to increase the speed, and even the ability to rotate will be a problem. It is also necessary to understand its spindle speed and the maximum thread processing length.
Q: In which fields are thread rolling machines applied?
A: Thread rolling machines are now widely used in many fields, including the construction industry, industrial processing, pipe processing, and automotive parts. This widespread use stems from their many advantageous features and the convenience they offer. The cold rolling process is an advanced, non-cutting process that effectively improves both the internal and external quality of a workpiece. The radial pressure generated during processing significantly increases the fatigue and torsional strength of the workpiece, making it an ideal process that is efficient, energy-efficient, and low-consumption. Precisely because thread rolling machines are so well-suited to this process, their application is naturally becoming increasingly widespread.
Q: What certification has the product passed?
A: This product has passed the national ISO9001:2000 international quality system certification.
Q: What about the payment term&price term?
A: As usual, we accept T/T as the payment term, and the price term FOB is ok.
Q: How about the packing?
A: Outside Package: Wooden packing case as export standard ; Inside Package: Stretch film
Q: What's the delivery time?
A: Usually, we will delivery the goods within 15-20 working days, but this is aim at 1-10 pieces products, if more quantity, it depends.
Q: What are the technological advantages of thread rolling machines?
A: High Efficiency: Production efficiency is several times higher than cutting and is easily automated.
High Precision: The surface roughness of the finished workpiece is superior to that of turning and milling, and thread accuracy can reach national standard Class A.
High Material Utilization: Cold work hardening improves the surface strength and hardness of the workpiece.
Environmentally Friendly and Pollution-Free: No chips are generated, making this an environmentally friendly processing method.
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