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M12 BT30 Pull Stud CNC Chuck Tool Holder Bt30 Retention Knob

Basic Information
Place of Origin: CHINA
Brand Name: QFMH
Model Number: BT30,BT40,BT50
Minimum Order Quantity: 10PCS
Price: USD 1-2/PCS
Packaging Details: PLASTIC BOX
Delivery Time: 5DAYS
Payment Terms: L/C, D/P, T/T, Western Union
Supply Ability: 1000PCS/MONTH
AppliCATEion: CNC Machine Material: 20CrMnTi;
Hardness: 54-57HRC; Pull Stud Type: CNC Pull Stud
Surface Treatment: Black Oxide Thread Size: M12
Weight: 0.1kg
High Light:

M12 BT30 Pull Stud


pull stud bt30


Bt30 Retention Knob

BT Pull Stud 45 Degree Pull Studs: CNC Chuck-Tool Holder Connection, Automatic Clamping Tool


The cnc pull stud of the tool holder is tightened. When changing the tool, the tool holder should be loosened. The automatic clamping mechanism of the tool inside the spindle is the special mechanism of the CNC machine tool processing center. The drawing shows the structure of the spindle of the machining center. The cutter can be loaded and unloaded automatically on the spindle and clamped automatically. The working principle is as follows: when the cutter 2 is loaded into the spindle hole, the pull pin 3 at the back of the handle is sent to the front of the spindle pull rod. Under the action of the disc spring, the cutter is tightened by the elastic claw.


BT Pull stud 45 Degree pull studs : one end of the cnc pull stud is connected with the machine tool chuck, the other end is connected with the tool holder, the d part is clipped in according to the degree of the machine tool chuck, and the G part has threads and knife handle tightening. Through the axial force transmitted by the cnc pull rod, the pull rod joint and the cnc pull stud, the tool holder is tightened. When changing the tool, it is required to loosen the tool holder. When the cnc pull stud is installed on the spindle of the common machine tool or the numerical control machine tool, the arc joint of the rod body is connected with the front end of the pull rod structure. The screw joint of the cnc pull stud is connected with the inner screw hole of the tool holder extending into the spindle hole, thus realizing the use of the tool holder on the common machine tool and the numerical control machine tool. The tool holder can be used not only in machining centers, but also in common machine tools and CNC machine tools, which improves the universality of the tool holder and reduces the production cost.





Retention Knob for BT Tool Holder 45° Pull Stud,BT pull stud Aging treatment 20-40 h super-long heat aging removes residual internal stress during grinding. Deep cooling treatment and thermal aging treatment can reduce residual stress and improve durability and accuracy stability.Adopt surface coating technology to improve the anti-wear ability of the surface, better anti-rust and anti-corrosion effect, more stable accuracy, smoother surface and more beautiful appearance.

BT pull stud Product introduction:
Cnc Tools Holder Pull Stud Material: 20CrMnTi;
Bt30 Pull Stud Carburizing depth: > 0.8;
BT pull stud Head hardness: 54-57HRC;
Cnc Pull Stud The hardness of threads and other parts is low: 35+5HRC,( 59169498, 59169482, 59169465, 59169446, 58386579, 57678307, 57086549,the core hardness of protective handle threads can withstand impact);

accuracy of stability. pull stud BT40 Cryogenic treatment
1. The ultra-long cryogenic treatment at - 185 C transforms nearly all residual austenite into martensite.
2. Precipitated nano-carbide particles increase hardness and toughness.
3. Reducing residual stress;
4. The wear resistance is improved significantly.



MODEL D D1 D2 M L L1 L2 H H1
BT30 12.50 7 11 M12 43 23 18 5 2.5
BT40 17.00 10 15 M16 60 35 28 6 3
BT50 25.00 17 23 M24 85 45 35 10 5


Contact Details

Phone Number : 13705473076

WhatsApp : +8613705473076