Haimer Power Hydraulic Chuck, D = 20 mm, short, BT40 Tool Holder 40.6H10.20.3 (0837679)
Haimer Power Hydraulic Chuck, D = 20 mm, short, BT40 Tool Holder 40.6H10.20.3 (0837679)
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Haimer Part Number: 40.6H10.20.3
HAIMER is a global leader in tool holding, balancing, and presetting technology. Founded in 1977 and headquartered in Igenhausen, Germany, HAIMER offers premium shrink fit chucks, tool balancing machines, and precision tool holders trusted in high-performance machining environments worldwide.
This product is priced singly and comes in packs of 1.
Please note that the actual item may not be/look exactly the same as shown in the item picture(s).
| Properties | ||
|---|---|---|
| Name | Haimer Power Hydraulic Chuck, D = 20 mm, short, BT40 Tool Holder 40.6H10.20.3 | |
| EDP # | 0837679 | |
| Weight (1 pc.) | 49.0 oz | 1402 g |
| Interface | BT40 | |
| A-length version | short | |
| Diameter 1 / D1 | 0.7870" | 20.000 mm |
| Length A / A | 2.8540" | 72.500 mm |
| Length / L | 2.0080" | 51.000 mm |
| Diameter 2 / D2 | 1.4960" | 38.000 mm |
| Diameter 3 / D3 | 1.9290" | 49.000 mm |
| Diameter 4 / D4 | 0.000000 | |
| Length 2 / L2 | 2.8540" | 72.500 mm |
| Thread | M16x1 | |
Product Features:
- Power Hydraulic Chuck, JIS B 6339, BT40
- Chuck body fine balanced G2.5 at 25.000 rpm or U < 1 gmm
- Runout accuracy < 3 µm
- In contrast to standard hydraulic chucks, Power Hydraulic Chucks feature a more rigid design. This makes them ideal for demanding rough milling operations, drilling applications, as well as for precise finish milling.
- Taper JIS B 6339 BT40 Form JD/JF
- The form JD/JF provides internal coolant supply as standard, either centrally through the pull stud (JD version) or via coolant channels through the flange (JF version).
- Hydraulic chucks are a high-precision clamping technology. Their functionality is based on a hydraulic chamber that expands slightly during clamping, fixing the tool evenly and with high precision. They offer excellent runout accuracy and high vibration damping.
- Compact design and high rigidity
- High torque transmission
- Perfectly suitable for milling operations, thanks to radial rigidity and temperature resitance (up to 170 °C)
- Excellent vibration damping
- Tool changes in seconds without peripheral equipment
- With length adjustment screw
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Background Information:
The BT system utilizes a proven "fast taper" (7:24) self-releasing format and is common among non-European machine tools. Note that ISO, CAT, BT, and SK are NOT interchangeable even though they use the same basic taper!.
Company History:
Family-owned since 1977, HAIMER has grown from a precision parts specialist into a global tooling solutions supplier with operations across Europe, North America, and Asia.
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