Режущие и зажимные инструменты Hoffmann Group 2026 - страница 1044
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Form
VDI toolholders
Form E1
Standard: DIN 69880 / VDI 3425, sheet 2. 31 9155_16
Application: For drilling with indexable drill with internal coolant supply.
l2
d3 d2 l1 d6 Colour code d
| Bore d (H6) | mm | 16 | 20 | 25 | 32 | 40 | 50 | for VDI 6 | ||
| 2 | mm | |||||||||
| shanks | ||||||||||
| 31 9155 | VDI 20 | eShop | eShop | eShop | – | – | – | 50 | ||
| 31 9175 | VDI 30 | eShop | eShop | eShop | eShop | eShop | – | 68 | ||
| Indexable drill holder | ||||||||||
| 31 9205 | Form E1 VDI 40 | eShop | eShop | eShop | eShop | eShop | – | 83 | ||
| 31 9215 | VDI 50 | – | eShop | eShop | eShop | eShop | eShop | 98 | ||
| ⌀ d (31 9205, 31 9215) | mm | 36 | 40 | 45 | 52 | 65 | 75 | |||
| 3 | ||||||||||
| l -0.2 (31 9215) | mm | – | 67 | 75 | 71 | 90 | 100 | |||
| 1 | ||||||||||
| l | mm | 54 | 54 | 59 | 63 | 73 | 83 |
2 The new GARANT Master Eco VDI toolholders in form E2
Very easy to operate. Novel coolant adjustment. The boring bar is fixed in the GARANT Master Eco VDI 3 different coolant supply variants via coolant switch using adjusting holder by means of only one fastening screw. screw:
- Internal: Eco cooling through the boring bar.
- External: cooling via ball spray nozzle.
- Mix: internal + external.
Full cooling performance. Two adjustable coolant spray nozzles as standard for optimum cooling of the cutting edge up to 70 bar. Through-bored VDI shank. With individually adjustable stop/length adjustment screw.
Advantages:
- Longer boring bars can be inserted.
- Position the boring bars with excellent repetition accuracy.
Form E2 GARANT Master Eco e Comprehensivan be found
- Case-hardened HRC 58+/-2. dimensions c All functional faces ground. in the eShop
- Through-bored VDI shank.
- With two ball spray nozzles.
Advantage: Also suitable for longer boring bars.
- Individual length adjustment for the boring bars.
Application: For internal machining with boring bar holder. 31 9235
l d l
h h
| d d | d | ||
| l | |||
| Colour code | |||
| d |
| Bore dia. d (H7) | mm | 8 | 10 | 12 | 16 | 20 | 25 | 32 | 40 | 50 | for VDI 7 | |
| 2 | mm | |||||||||||
| 31 | shanks | |||||||||||
| 31 9225 GARANT Master Eco | VDI 30 | eShop | eShop | eShop | eShop | eShop | eShop | eShop | – | – | 16.5 | |
| 31 9235 boring bar holder | ||||||||||||
| Form E2 | VDI 40 | eShop | eShop | eShop | eShop | eShop | eShop | eShop | eShop | eShop | 20.5 | |
| ⌀ L | mm | 22 | ||||||||||
| ⌀ L (31 9225) | mm | 65 | 65 | 65 | 65 | 65 | 70 | 80 | – | – | ||
| ⌀ L (31 9235) | mm | 75 | 75 | 75 | 75 | 75 | 75 | 75 | 90 | 100 | ||
| ⌀ L (31 9225) | mm | 92.5 | 92.5 | 92.5 | 92.5 | 51 | 51 | 51 | – | – | ||
| ⌀ L (31 9235) | mm | 110.5 | 110.5 | 110.5 | 110.5 | 110.5 | 61 | 61 | 76 | 86 | ||
| Colour code: | VDI 20 | VDI 30 VDI 40 | VDI 50 |