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Precision Slim Collet Chuck - High Precision Locking System by China Suppliers and Factory, Run Out ≤0.003mm
HSK-A-DC Precision Slim Collet Chuck
| Specification | D | d1 | d2 | L | L1 | Suit collet | Tension screw | Stop nut | T Wrench | Weight |
| HSK50A-DC6-75 | 50 | 14 | 22.5 | 75 | 34 | DC6 | E050U250 | ZD6-4 | T04 | 0.67 |
| HSK50A-DC6-100 | 50 | 14 | 29 | 100 | 48 | DC6 | E050U500 | ZD6-4 | T04 | 0.70 |
| HSK63A-DC6-75 | 63 | 14 | 22.5 | 75 | 34 | DC6 | E050U200 | ZD6-5 | T04 | 0.80 |
| HSK63A-DC6-95 | 63 | 14 | 29 | 95 | 45 | DC6 | E050U400 | ZD6-5 | T04 | 0.90 |
| HSK63A-DC6-120 | 63 | 14 | 37 | 120 | 53 | DC6 | E050U650 | ZD6-5 | T04 | 1.10 |
| HSK63A-DC6-150 | 63 | 14 | 40 | 150 | 80 | DC6 | E050U950 | ZD6-5 | T04 | 1.20 |
| HSK63A-DC8-100 | 63 | 22 | 37 | 100 | 48 | DC8 | E060U400 | ZD8-2 | T05 | 1.10 |
| HSK63A-DC10-110 | 63 | 28 | 45 | 110 | 55 | DC10 | E080U300 | ZD10-2 | T06-L | 1.20 |
| HSK63A-DC12-120 | 63 | 34 | 51.5 | 120 | 65 | DC12 | E100U350-D14 | ZD12-1 | T08-L | 1.30 |
⚠️Notice: Wrench is included, while collet shall be ordered separately.
⚙️ Features
Balanced: G2.5; 30,000 rpm
Runout (X3D): ≤ 0.003 mm
BT-DC Precision Slim Collet Chuck
| Specification | Figure | D | L1 | L | Suit collet | Tension screw | Stop nut | Wrench | Weight |
| BT30-DC6-60 | A | 14 | 26 | 60 | DC6 | E050U350 | ZD6-1 | T04 | 0.90 |
| BT30-DC6-90 | A | 14 | 50 | 90 | DC6 | E050U650 | ZD6-1 | T04 | 1.10 |
| BT30-DC12-70 | B | 34 | 48 | 70 | DC12 | E100U350-D14 | ZD12-1 | T08-L | 0.60 |
| BT40-DC6-60 | A | 14 | 26 | 60 | DC6 | E050U450 | ZD6-1 | T04-L | 1.02 |
| BT40-DC6-90 | A | 14 | 45 | 90 | DC6 | E050U450 | ZD6-1 | T04-L | 1.05 |
| BT40-DC6-120 | A | 14 | 60 | 120 | DC6 | E050U800 | ZD6-1 | T04-L | 1.08 |
| BT40-DC6-150 | A | 14 | 76 | 150 | DC6 | E050U1300 | ZD6-1 | T04-L | 1.11 |
| BT40-DC8-90 | A | 22 | 53 | 90 | DC8 | E060U600 | ZD8-1 | T05-L | 1.10 |
| BT40-DC8-120 | A | 22 | 65 | 120 | DC8 | E060U900 | ZD8-1 | T05-L | 1.40 |
| BT40-DC10-90 | B | 28 | 63 | 90 | DC10 | E080U300 | ZD10-2 | T06-L | 1.20 |
| BT40-DC10-120 | A | 28 | 60 | 120 | DC10 | E080U850 | ZD10-1 | T06-L | 1.57 |
| BT40-DC12-70 | B | 34 | 43 | 70 | DC12 | E100U350-D14 | ZD12-1 | T08-L | 1.08 |
| BT40-DC12-90 | B | 34 | 63 | 90 | DC12 | E100U350-D14 | ZD12-1 | T08-L | 1.28 |
| BT40-DC12-120 | B | 34 | 93 | 120 | DC12 | E100U350-D14 | ZD12-1 | T08-L | 1.49 |
| BT40-DC12-150 | B | 34 | 123 | 150 | DC12 | E100U350-D14 | ZD12-1 | T08-L | 1.80 |
| BT50-DC10-110 | A | 28 | 57 | 110 | DC10 | E080U800 | ZD12-1 | T06-L | 4.20 |
| BT50-DC10-150 | A | 28 | 75 | 150 | DC10 | E080U1200 | ZD12-1 | T06-L | 4.32 |
| BT50-DC12-110 | B | 34 | 72 | 110 | DC12 | E100U350-D14 | ZD12-1 | T08-L | 4.70 |
| BT50-DC12-150 | A | 34 | 80 | 150 | DC12 | E100U1100-D14 | ZD12-1 | T08-L | 5.01 |
⚠️Notice: Wrench is included, while collet shall be ordered separately.
⚙️ Features
Balanced: G2.5; 30,000 rpm
Runout (X3D): ≤ 0.003 mm
SK-DC Precision Slim Collet Chuck
| Specification | Figure | D | L1 | L | Suit collet | Tension screw | Stop nut | Wrench | Weight |
| SK40-DC6-90 | A | 13 | 45 | 90 | DC6 | E050U450 | ZD6-2 | T04-L | 1.05 |
| SK40-DC8-90 | A | 22 | 53 | 90 | DC8 | E060U600 | ZD8-1 | T05-L | 1.10 |
| SK40-DC10-90 | B | 28 | 74 | 90 | DC10 | E080U300 | ZD10-2 | T06-L | 1.20 |
| SK40-DC12-90 | B | 34 | 74 | 90 | DC12 | E100U350-D14 | ZD12-1 | T08-L | 1.28 |
| SK50-DC10-110 | A | 28 | 57 | 110 | DC10 | E080U800 | ZD12-1 | T06-L | 4.20 |
| SK50-DC12-110 | B | 34 | 94 | 110 | DC12 | E100U350-D14 | ZD12-1 | T08-L | 4.70 |
⚠️Notice: Wrench is included, while collet shall be ordered separately.
⚙️ Features
Balanced: G2.5; 30,000 rpm
Runout (X3D): ≤ 0.003 mm
DC Collet Extender
| Specification | Figure | D | d | L1 | L | θ | Suit collet | Tension screw | Stop nut | Wrench | WDC Wrench | Weight |
| C10-DC4-90 | A | 9 | 10 | - | 90 | - | DC4 | E040U700 | ZD4-1 | T03-L | WDC | 0.10 |
| C12-DC4-120 | B | 9 | 12 | - | 120 | - | DC4 | E040U800 | ZD4-2 | T03-L | WDC | 0.12 |
| C12-DC6-120 | A | 14 | 12 | - | 120 | - | DC6 | E050U950 | ZD6-2 | T04-L | WDC | 0.13 |
| C16-DC6-150 | B | 14 | 16 | 38 | 150 | 3° | DC6 | E050U1000 | ZD6-1 | T04-L | WDC | 0.22 |
| C20-DC6-200 | B | 14 | 20 | 76 | 200 | 3° | DC6 | E050U1150 | ZD6-1 | T04 | WDC | 0.42 |
| C25-DC6-250 | B | 14 | 25 | 124 | 250 | 3° | DC6 | E050U1500 | ZD6-1 | T04 | WDC | 0.50 |
| C20-DC8-150 | B | 19 | 20 | 28 | 150 | 2° | DC8 | E060U800 | ZD8-1 | T05-L | WDC | 0.40 |
| C20-DC8-200 | B | 19 | 20 | 28 | 200 | 2° | DC8 | E060U1200 | ZD8-1 | T05-L | WDC | 0.65 |
| C25-DC10-150 | B | 24 | 25 | 28 | 150 | 2° | DC10 | E080U800 | ZD10-1 | T06-L | WDC | 0.60 |
| C25-DC10-200 | B | 24 | 25 | 28 | 200 | 2° | DC10 | E080U1200 | ZD10-1 | T06-L | WDC | 0.68 |
| C25-DC10-250 | B | 24 | 25 | 28 | 250 | 2° | DC10 | E080U1400 | ZD10-1 | T06-L | WDC | 0.78 |
| C32-DC12-200 | B | 30 | 32 | 57 | 200 | 2° | DC12 | E100U1200-D14 | ZD12-1 | T08 | WDC | 0.82 |
| C32-DC12-250 | B | 30 | 32 | 57 | 250 | 2° | DC12 | E100U1400-D14 | ZD12-1 | T08 | WDC | 0.95 |
| C32-DC12-300 | B | 30 | 32 | 57 | 300 | 2° | DC12 | E100U1600-D14 | ZD12-1 | T08 | WDC | 1.15 |
VER-DC Split Synch Tapping Extender
| Specification | D | d | L | L1 | Suit collet | Tension screw | Stop nut | Wrench | Weight |
| VER16-DC4 | 20 | 10 | 80 | 50 | DC4 | E040U0300 | ZD4-2 | L03 | 0.08 |
| VER16-DC6 | 20 | 14 | 90 | 60 | DC6 | E050U0400 | ZD6-1 | L04 | 0.10 |
| VER20-DC4 | 25 | 10 | 90 | 50 | DC4 | E040U0350 | ZD4-2 | L03 | 0.15 |
| VER20-DC6 | 25 | 14 | 100 | 60 | DC6 | E050U0400 | ZD6-1 | L04 | 0.17 |
| VER20-DC8 | 25 | 19 | 120 | 80 | DC8 | E060U0500 | ZD8-1 | L06 | 0.22 |
DC Slim Collet
| Specification | D | L |
| DC 4 | 7 | 31 |
| DC 6 | 9.6 | 36 |
| DC 8 | 15 | 45 |
| DC 10 | 19 | 52 |
| DC 12 | 22 | 60 |
| Specification | Clamping range |
| DC8-3E | 2.75-3 |
| DC8-4E | 3.75-4 |
| DC8-6E | 5.75-6 |
| DC8-8E | 7.75-8 |
| DC4-3E | 2.75-3 |
| DC4-4E | 3.75-4 |
| DC10-3E | 2.75-3 |
| DC10-4E | 3.75-4 |
| DC10-6E | 5.75-6 |
| DC10-8E | 7.75-8 |
| DC10-10E | 9.75-10 |
| DC6-3E | 2.75-3 |
| DC6-4E | 3.75-4 |
| DC6-6E | 5.75-6 |
| DC12-3E | 2.75-3 |
| DC12-4E | 3.75-4 |
| DC12-6E | 5.75-6 |
| DC12-8E | 7.75-8 |
| DC12-10E | 9.75-10 |
| DC12-12E | 11.75-12 |
Runout (3D): ≤ 0.005 mm
⚙️ Features
The design of DC collets is emphasized on increasing the clamping force.
Gripping range of each collet is 0.25 mm.
Wrench For DC Extender
| Specification | Tool holder | Weight |
| WDC | DC | 0.1 |
Frequently Asked Questions
What is the runout accuracy of the DC Precision Slim Collet Chuck?
The DC Precision Slim Collet Chuck achieves a runout (X3D) of ≤ 0.003 mm, ensuring exceptional precision for high-speed and high-accuracy machining applications.
What is the maximum spindle speed supported by these collet chucks?
All DC Precision Slim Collet Chucks (HSK-A-DC, BT-DC, SK-DC series) are balanced to G2.5 and support a maximum spindle speed of 30,000 rpm, making them suitable for high-speed machining centers.
Is the collet included when I purchase a DC Precision Slim Collet Chuck?
No. The wrench is included with the collet chuck, but the DC slim collet must be ordered separately. Please select the appropriate collet size based on your tooling requirements.
What is the clamping range of each DC slim collet?
Each DC slim collet has a gripping range of 0.25 mm. For example, DC8-6E covers a clamping range of 5.75–6 mm. Multiple sizes are available from DC4 to DC12 to accommodate various tool shank diameters.
What tool holder interfaces are available for the DC Precision Slim Collet Chuck?
The DC Precision Slim Collet Chuck is available in multiple interface standards including HSK-A (HSK50A, HSK63A), BT (BT30, BT40, BT50), and SK (SK40, SK50), providing broad compatibility with common CNC machining centers.
What is the DC Collet Extender used for, and how does it differ from a standard collet chuck?
The DC Collet Extender is designed to extend the reach of DC slim collets for deep-cavity or hard-to-reach machining applications. It features a slim taper body (with taper angles of 2°–3°) and is used in conjunction with a WDC wrench, which is sold separately. It is ideal when standard collet chucks cannot provide sufficient tool reach.