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| Application: | Metal |
| Process Usage: | Metal-Cutting CNC Machine Tools |
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In the field of mechanical processing, the tap chuck, as the core tool for thread processing, plays a key role in accurately transmitting torque and protecting the tap. Its design integrates material mechanics, precision manufacturing and process adaptability, and has become an indispensable part of modern CNC machine tools and automated production lines.
| Thread bottom hole drill diameter(metric coarse thread) | |||||||
| Thread specification | M1×0.25 | M1.4×0.3 | M1.8×0.35 | M2×0.4 | M2.2×0.45 | M2.5×0.45 | M3×0.45 |
| Drill bit diameter | 0.75 | 1.1 | 1.45 | 1.6 | 1.75 | 2.1 | 2.5 |
| Thread specification | M4×0.7 | M5×0.8 | M6×1 | M8×1.25 | M10×1.5 | M12×1.75 | M14×2 |
| Drill bit diameter | 3.3 | 4.2 | 5 | 6.8 | 8.5 | 10.3 | 12 |
| Thread specification | M16×2 | M18×2.5 | M20×2.5 | M22×2.5 | M24×3 | M27×3 | M30×3.5 |
| Drillbit diameter | 14 | 15.5 | 17.5 | 19.5 | 21 | 24 | 26.5 |
| Thread specification | M33×3.5 | M36×4 | M39×4 | M42×4.5 | M45 | M48×5 | |
| Drill bit diameter | 29.5 | 32 | 35 | 37.5 | 40.5 | 43 | |
| Thread bottom hole drill diameter(metric coarse thread) | |||||||
| Thread specification | M3×0.35 | M4×0.5 | M5×0.5 | M6×0.75 | M8×1 | M8×0.75 | M10×1.25 |
| Drill bit diameter | 2.7 | 3.5 | 4.5 | 5.3 | 7 | 7.3 | 8.8 |
| Thread specification | M10×1 | M10×0.75 | M12×1.5 | M12×1.25 | M12×1 | M16×1.5 | M16×1 |
| Drill bit diameter | 9 | 9.3 | 10.5 | 10.8 | 11 | 14.5 | 15 |
| Thread specification | M20×2 | M20×1.5 | M20×1 | M24×2 | M24×1.5 | M24×1 | M30×2 |
| Drill bit diameter | 18 | 18.5 | 19 | 22 | 22.5 | 23 | 28 |
| Thread specification | M30×1.5 | M30×1 | M36×3 | M36×2 | M36×1.5 | M42×4 | |
| Drill bit diameter | 28.5 | 29 | 33 | 34 | 34.5 | 38 | |
The core structure of the tap chuck consists of a taper shank interface, a clamping mechanism and an overload protection module. The taper shank interface usually adopts Morse taper (such as MT2/MT3) or ER spring chuck standard, and realizes a high-rigidity connection with the machine tool spindle through the principle of taper self-locking. The end face runout accuracy can be controlled within 0.003mm. The clamping mechanism radially envelops the tap through an elastic sleeve or hydraulic expansion structure, which not only ensures uniform distribution of clamping force, but also automatically compensates for slight offsets during processing, effectively avoiding thread misalignment. Some high-end models also integrate a mechanical torque limiter, which automatically disengages when the cutting resistance exceeds the preset threshold, significantly reducing the tap breakage rate.
| ISO529-GT12 | Tap shank diameterxsquare head size | D | D1 | L1 | L2 | Power range | H |
| M1-M2 | 2.5x2 | 19 | 37 | 22 | 26 | M1-M10 | 10 |
| M2.2-M2.5 | 2.8x2.24 | ||||||
| M3 | 3.15x25 | ||||||
| M4 | 4x3.15 | ||||||
| M5 | 5x4 | ||||||
| M6 | 6.3x5 | ||||||
| M8 | 8x6.3 | ||||||
| M10 | 10x8 | ||||||
| ISO529/2283-GT12 | Tap shank diameterxsquare head size | D | D1 | L1 | L2 | Power range | H |
| M3 | 2.24x1.8 | 19 | 37 | 22 | 26 | M3-M16 | 10 |
| M4 | 3.15x2.5 | ||||||
| M5 | 4x3.15 | ||||||
| M6 | 4.5x3.55 | ||||||
| M8 | 6.3x5 | ||||||
| M10 | 8x6.3 | ||||||
| M12 | 9x7.1 | ||||||
| M14 | 11.2x9 | ||||||
| M16 | 12.5x10 | ||||||
| ISO-GT24 | Tapshank diameterxsquare head size | D | D1 | L1 | L2 | Power range | H |
| M5 | 5x4 | 30 | 57 | 30 | 40 | M5-M30 | 12 |
| M6 | 6.3x5 | ||||||
| M8 | 6.3x5 | ||||||
| M10 | 8x6.3 | ||||||
| M12 | 9x7.1 | ||||||
| M14 | 11.2x9 | ||||||
| M16 | 12.5x10 | ||||||
| M18 | 14x11.2 | ||||||
| M20 | 14x11.2 | ||||||
| M22 | 16x12.5 | ||||||
| M24 | 18x14 | ||||||
| M27 | 20x16 | ||||||
| M30 | 20x16 | ||||||
| IS0529/2283-GT42 | Tap shank diameterxsquare head size | |D | D1 | L1 | L2 | Power range | H |
| M24 | 18x14 | 45 | 85 | 48 | 68 | M24-M42 | 20 |
| M27 | 20x16 | ||||||
| M30 | 20x16 | ||||||
| M33 | 22.4x18 | ||||||
| M36 | 25x20 | ||||||
| M39 | 28x22.4 | ||||||
| M42 | 28x22.4 | ||||||
In order to meet the needs of high-strength processing, the tap chuck body is mostly forged with 40Cr alloy steel or 20CrMnTi titanium alloy. After quenching and tempering, the hardness can reach 58-60HRC, which has both wear resistance and impact toughness. TiAlN or TiCN coating is often applied to the key contact surface to increase the surface hardness to more than 3000HV, and the high temperature resistance exceeds 600ºC, which is particularly suitable for continuous processing of difficult-to-cut materials such as stainless steel and titanium alloy. In terms of structural design, a lightweight hollow shaft and stress dispersion groove are used to reduce the weight by 20%-30% while ensuring rigidity, reducing the spindle load during high-speed rotation.International mainstream standard systems (such as DIN, JIS, ISO) strictly regulate the chuck taper, clamping range, and torque parameters to ensure the compatibility of equipment from different brands. For example, the ER32 chuck can be adapted to taps with a diameter of 3-20mm, covering the M1-M30 thread processing requirements, while the GT24 model is designed for British UNF/UNC threads to meet the special standards in the aerospace field. At the same time, non-standard customized services solve the processing problems of special-shaped parts by modifying the keyway of the chuck inner hole and adding customized coolant channels.
From structural innovation to material upgrades, the development trajectory of tap chucks reflects the extreme pursuit of precision and efficiency in modern manufacturing. With the application of intelligent sensing technology and new composite materials, this traditional tool is gradually evolving into a key node in the digital processing ecosystem, continuously pushing the boundaries of thread processing technology.
Frequently Asked Questions.
Q: Can you produce special carbide tools?
A: Yes, we have our own professional R&D team and can produce according to your drawings or samples.
Q: Can you provide samples?
A: We can supply. However, customers need to pay the sample fee and shipping cost.
Q: How about the shipping cost?
A: If your goods are not big, we can ship to you by FEDEX, TNT and other express delivery. If your goods are big,
we will send you by sea or air, we can quote according to EXW, FOB, as you wish. Then you can choose to use our
freight forwarder or your freight forwarder.
Q: How long is the delivery time?
A: In stock products: We have some regular products in stock and we can send them as soon as the order is confirmed.
Non-stock products: Within 10-20 days
Q: Are your products custom or standard?
A: We have regular products as well as extensive experience with custom parts.
We have many successful projects to make products according to your own design.
Q: Packaging of goods?
A: The packaging has plastic box, carton, etc. Special requirements can be noted
Q: How do I place an order?
A: Please send a request for quotation or contact our sales staff directly.
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