Versatility for standard machines
RGT Heads‑2B and C225‑2B are designed for cutting external cylindrical threads on bolt-cutting and pipe‑cutting machines, including models C225, VMS-2a, 5D07, MZK‑95M and similar. The installation is performed on the spindle flange and is fixed with four M16×60 studs (according to GOST 22034-76) and four M16 nuts (according to GOST 5915-70). This mounting scheme ensures rigidity and minimizes vibrations, which directly affects the quality of the thread profile.
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Head type |
D |
D1 |
d |
Thread cutting range |
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| Metric | Pipe | |||||
| Nominal diameter | Step | |||||
| GT-RGT-2B | Ø177H9 | Ø146±0,2 | Ø55 | M12 ... M48 | 1.25 ... 3 < 3 | G1/4" ..4" ... G1" |
| C225-2B | Ø165H9 | Ø130±0,2 | Ø79 | M12 ... M76 | G1/4" ... G2" | |
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Accuracy and purity - according to the standards
The manufacturer guarantees high stability of the parameters:
- metric thread - accuracy 8g according to GOST 16093-2004;
- pipe thread - class B according to GOST 6357-81;
- the purity of the profile is Ra...5...10.
In order to consistently obtain high-quality threads, it is important to comply with the requirements for workpieces: straightness and ovality must fit within the tolerance for the outer diameter of the thread, and the hardness of the material must be in the range of 186...217 HB. This approach eliminates slipping of the combs and reduces the risk of marriage.
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Flexibility due to replaceable combs
Threading is performed with tangential combs according to GOST 2287-88: standard sizes 9×20× 100 and 10×25×100, type 1 with dovetail attachment. Options with a ground and unpolished profile are available - the choice depends on the requirements for surface cleanliness and output volumes.
The key advantage is two versions of combs:
- version 1 - for machines without a lead screw, operates on the principle of self-tightening;
- version 2 - for machines with a lead screw.
This differentiation allows you to choose the best option for the existing fleet of equipment and not change the technology in production.
Important! The threading heads are supplied without combs. This gives the customer the freedom to choose a kit for specific tasks and materials, as well as the possibility of step-by-step expansion of the range.
Practical recommendations for operation
In order for the heads to serve for a long time and consistently ensure the claimed accuracy, it is enough to follow simple maintenance rules:
- before installation, remove the anti-corrosion grease without disassembling the head;
- during operation, small metal particles and scale get into the mechanism. Therefore, it is recommended to clean and lubricate it regularly, at least twice a month.
Such regulations make it possible to maintain the accuracy and resource of the tool even during intensive operation.
The threading heads RGT‑2B and C225‑2B from JSC "MIZ" are a combination of proven design, precise standardization and flexibility for real production conditions. The tool is suitable for enterprises for which it is important to maintain stable thread quality and minimize downtime for changeover.