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Tool holders 585

CNC short drill chuck

Design: Short design, guide elements of rigid design, hardened and ground wear parts ensure high concentricity and long life. Compact design and high rigidity lead to the best machining results. High clamping forces are reached by the integrated worm gear at low effort, Holding torque > 75 Nm at 13 mm diameter. Machining is safe thanks to automatic blocking of the worm gear even when running anti-clockwise and quickly decelerated spindle. Taper angle: Tolerance AT3. Taper surface roughness: Ra < 0.001 mm. Balancing quality: pre-balanced up to 7000 min -1 at a residual

B JIS 6339 MAS/BT

Form AD

≤ 30 µm

Scope of delivery: Short drill chuck with hex spanner.

S

imbalance of max. 40 gmm. Concentricity: < 0.03 mm. Max. permissible speed: 7000 min -1 .

(

Application: For drilling, countersinking, reaming, thread cutting and for simple finishing milling work. Can be used in machining centres, turning, drilling and milling machines.

G

3528

Clamping range mm

Order No.

BT

A

l 1 d 1

Systems

mm

mm

mm

Clamping

0101

1–16

219.00 (W324)

40 88 100 50

3

CNC precision short drill chuck AKL for clockwise and anti-clockwise rotation

Design: JIS B 6339 (MAS-BT), Form AD . Short design, guide elements of rigid design, hardened and ground wear parts ensure high concentricity and long life. 100 % concentricity test with different plug gauge diameters at various measuring points, based on DIN ISO 10888. Compact design and high rigidity result in best machining results. High clamping forces are reached by the integrated worm gear at low effort, Holding torque > 75 Nm at 13 mm diameter. Machining is safe thanks to automatic blocking of the worm gear even when running anti- clockwise and quickly decelerated spindle. Taper angle: Tolerance AT3. Taper surface roughness: Ra < 0.001 mm. Balancing quality: G2.5 20000 min -1 . Concentricity: 0.03 mm. Application: For drilling, countersinking, reaming, thread cutting and for simple finishing milling work. Can be used in machining centres, turning, drilling and milling machines.

B JIS 6339 MAS/BT

Form AD

≤ 30 µm

Scope of delivery: Short drill chuck with hex spanner. Note: Higher speeds possible with special balancing. Also available as ULTRA design (concentricity ≤ 0.015 mm).

l

2

1

2

d

d

3486

Clamping range mm

Order No.

BT l 1 l 2 d 1 d 2 l 1

mm

mm

mm

mm

0001 0007 0009

0.5–10 1 –16 1 –16

279.00 255.90 321.60 (W318)

40 77 38 38 45 40 88 – 50 – 50 99 – 50 –

CNC precision short drill chuck for clockwise and anti-clockwise rotation

Design: JIS B 6339 (MAS-BT), Form AD/B, made of alloy case- hardened steel, with a core tensile strength of approx. 950 N/mm 2 and a hardness depth of min. 0.5 mm. Taper according to DIN 254. Short design with central coolant supply, chuck and shank in one piece. Clamping (using a hex spanner) essentially increases clamping force in comparison to conventional chucks. At the same time, this secures the chuck against becoming loose during left-handed rotation or being quickly decelerated from higher speeds. Sealing disc in chuck for inner coolant drills. Taper angle: Tolerance AT3. Taper surface roughness: Ra < 0.001 mm. Balancing quality: G6.3 25000 min -1 . Concentricity: 0.02 mm. Hardened 58 ±2 HRC. Application: To nest tools with a cylindrical shank with internal cooling.

B JIS 6339 MAS/BT

Form AD/B

≤ 20 µm

3529

3530

Order No. l 1 mm 3529 3530 0002 0.3– 8 319.00 – 36 81 – 0005 0.5–13 296.00 354.50 50 98 110 0010 2.5–16 308.50 369.00 57 98 110 (W325) (W325) Clamping range mm BT 40 BT 50 d 2 mm

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Articles marked ◊ are not held in stock, procurement is effected at short notice.