Product Description
BT30 BT40 BT50 pull studs M12 M16 M24 for tool holders and collet chuck
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- Retention Knobs, also called Pull Studs are the link between the machine drawbar and the toolholder.
- Pulling forces can reach up to 1200 lbs for BT30, 2300 lbs for 40 taper, and up to 5000 lbs for 50 taper
- Our retention knobs are made in the USA by MariTool from H-13 tool steel. H-13 is tougher and harder than 8620, 9310 and 4140 alloys that are commonly used by other manufacturers
- All of our Retention Knobs have pilot diameters that help improve concentricity
- Retention Knobs do not have an infinite life
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Product Parameters
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Standard type |
| Order No. |
D |
d1 |
d2 |
d3 |
L |
L1 |
L2 |
T |
WT |
| BT30-45° |
16.5 |
11 |
7 |
12.5 |
43 |
23 |
18 |
M12 |
0.04 |
| BT40-45° |
23 |
15 |
10 |
17 |
60 |
35 |
28 |
M16 |
0.1 |
| BT50-45° |
38 |
23 |
17 |
25 |
85 |
45 |
35 |
M24 |
0.3 |
| BT60-45° |
56 |
32 |
24 |
31 |
115 |
65 |
53 |
M30 |
0.4 |
| BT30-60° |
16.5 |
11 |
7 |
12.5 |
43 |
23 |
18 |
M12 |
0.04 |
| BT40-60° |
23 |
15 |
10 |
17 |
60 |
35 |
28 |
M16 |
0.1 |
| BT50-60° |
38 |
23 |
17 |
25 |
85 |
45 |
35 |
M24 |
0.3 |
| BT60-60° |
56 |
32 |
24 |
31 |
115 |
65 |
53 |
M30 |
0.4 |
| BT30-90° |
16.5 |
11 |
7 |
12.5 |
43 |
23 |
18 |
M12 |
0.04 |
| BT40-90° |
23 |
15 |
10 |
17 |
60 |
35 |
28 |
M16 |
0.1 |
| BT50-90° |
38 |
23 |
17 |
25 |
85 |
45 |
35 |
M24 |
0.3 |
| BT60-90° |
56 |
32 |
24 |
31 |
115 |
65 |
53 |
M30 |
0.4 |
Detailed Photos
Company Profile
DOUCHUAN is located in the largest production base of machine tool accessories industry cluster in mainland China. We mainly produce various machinery accessories. Our mainly products CNC tool series such as CNC tool holders, live centers, spring collets, boring heads, milling chucks, drill chucks, morse taper adapters, shell end mill tool holder, pull studs, modular vises, tool vises, 3-jaw / 4-jaw chucks, dividing head, working table, parallel block set, quick change tool post and tool holder, VDI tool holder, dead & liver centers, small grinding machine and so on. Our products are sold to USA, Germany, Britain, France, Italy, the Netherlands, Canada, Brazil, Russia an Southeast Asia, and more than fifty countries and regions. Warmly welcome to visit our company.
FAQ:
1 Q: What's your advantages?
A: Honest business with competitive price and professional service on export process.
2 Q: How can we get samples to check the quality?
A: After we confirmed all prices, if you would like to see our samples, it is better to send us a trial order to test the quality.
3 Q: How long can we get the samples?
A: If for stock items, after payment, the samples will be sent within two working days. But if for non-standard items or non-stock items, we have to talk about it when you make the order.
4 Q: What's the delivery time?
A: Usually the stock items will be ready in three days, but for production times, the production time is 30-45 days, and we will tell you the exact delivery date when you send us the order.
5 Q: What are the terms for delivery?
A: FOB and CFR and the main terms, if you would like other terms, please let us know when you send us the order, then we will check if we can make it or not. Thanks.
6 Q: What's your payment Terms?
A: 100% TT
7 Q: Can you send goods with our brand (OEM)?
A: Yes, we can. OEM or ODM is available.
If you need any further information, feel free to contact us.
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