
GBP 57 G 2.5 ≤3µm ISO Form 25000 HSC HPC 7388-1 ADB min-1 Shrink-fit chuck 4.5°− DIN ISO 7388-1 (formerly DIN 69871) ■ High-temperature steel. ■ Size 3 -5 for carbide, from size 6 for HSS and carbide. ■ All shanks hard turned (for smooth running!). ■ With RFID / Balluffchip bore. 30 2230 – Ultra-short version for more stability and less vibration. 30 2230/2252/2257/2259/2267/2292/2308/2313 – With coolant hole bores tapped for plugging. 30 2252 Coolant hole bores at clamping ⌀ D1: 3, 4 and 5 mm cannot be plugged. 30 2237/2261/2287 – Premium version: nickel-plated version with 4 pluggable cooling channel bores. Integral tool length adjustment (adjustment track 10 mm). 30 2251/2254 – Glass bead blasted. Application: For clamping tools with parallel shank to h6 tolerance. Suitable for inductive, contact and hot-air shrink units. Supplied with: 30 2254 30 2237/2261/2287 – 4 × M3 nozzle screws. Optional extras: Pull studs (PS) No. 308600 − 308800. PS wrenches No. 308820 – 308835, Shrink-fit chuck extensions No. 302410 − 302419. Shrink-fit units, accessories No. 354210 − 354450, balancing screws set No. 309906 size 180. Note: Optimised cooling concept 30 2230 – No length adjustment available. ■ 4 cooling channel bores instead of 2. 30 2237 ■ Different approach angles of the cooling channel bores. ■ With 4 nozzle screws to optimise the Corrosion protection coolant pressure and alignment of the coolant stream. Special surface treatment. Clamping range ⌀ D1 mm 3 4 5 6 8 10 12 14 16 18 20 25 32 SK 30 30 2225 Shrink-fit chuck eShop eShop eShop eShop eShop eShop eShop (eShop) (eShop) (eShop) (eShop) – – 31A short Shrink-fit chuck SK 40 30 2230 with cooling channel ultra – – – – – eShop eShop – eShop – eShop eShop – 31A bores short SK 40 30 2235 eShop eShop eShop eShop eShop eShop eShop eShop eShop eShop eShop eShop – 31A short Shrink-fit chuck SK 40 30 2251 33W eShop eShop (eShop) eShop eShop eShop eShop eShop eShop (eShop) (eShop) (eShop) eShop short Shrink-fit chuck SK 40 30 2237 with 4 cooling channel – – – eShop eShop eShop eShop – eShop – eShop – – 31A short bores, nickel-plated Shrink-fit chuck SK 40 30 2252 with cooling channel eShop eShop eShop eShop eShop eShop eShop eShop eShop eShop eShop eShop – 31A short bores SK 40 30 2254 33W A = 120 (eShop) (eShop) (eShop) eShop eShop eShop eShop (eShop) eShop (eShop) (eShop) (eShop) (eShop) Shrink-fit chuck SK 40 30 2256 – – – eShop eShop eShop eShop eShop eShop eShop eShop eShop – 31A A = 120 Shrink-fit chuck SK 40 30 2257 with cooling channel – – – eShop eShop eShop eShop eShop eShop eShop eShop – – 31A A = 120 bores Shrink-fit chuck SK 40 30 2261 with 4 cooling channel – – – eShop eShop eShop eShop – eShop – eShop – – 31A A = 120 bores, nickel-plated SK 40 30 2266 Shrink-fit chuck eShop eShop eShop eShop eShop eShop eShop eShop eShop eShop eShop eShop eShop 31A A = 130 Shrink-fit chuck SK 40 30 2267 with cooling channel eShop eShop eShop eShop eShop eShop eShop – eShop – eShop – – 31A A = 130 bores SK 40 30 2258 Shrink-fit chuck – – – eShop eShop eShop eShop eShop eShop eShop eShop eShop – 31A A = 160 SK 40 30 2278 Shrink-fit chuck – – – eShop eShop eShop eShop – (eShop) – eShop eShop – 31A A = 200 Shrink-fit chuck SK 40 30 2259 with cooling channel – – – eShop eShop eShop eShop – eShop – eShop – – 31A A = 160 bores Dimension A (30 2225, 30 2235, 30 2251, 30 2237, 30 2252) mm 80 80 80 80 80 80 80 80 80 80 80 100 100 Dimension A (30 2230) mm – – – – – 65 65 – 65 – 65 75 – 30 ⌀ D (30 2225, 30 2251, 30 2237, 30 2256, 30 2261, 30 2258, 30 2278, 30 2259) mm 17 22 22 27 27 32 32 34 34 42 42 53 53 ⌀ D (30 2230) mm – – – – – 33 33 – 37 – 43 50 – ⌀ D (30 2235, 30 2252) mm 17 17 17 27 27 31.4 31.4 34 34 41 41 53 – ⌀ D (30 2254) mm 20 22 22 27 27 32 32 34 34 42 42 53 53 ⌀ D (30 2257) mm – – – 26.7 26.7 30.5 31.4 34 34 40.9 41.2 – – ⌀ D (30 2266, 30 2267) mm 17 17 17 27 27 32 32 34 34 42 42 53 53 ⌀ D2 (30 2225, 30 2251, 30 2237, 30 2254, 30 2256, 30 2257, 10 15 15 21 21 24 24 27 27 33 33 44 44 30 2261, 30 2258, 30 2278, 30 2259) mm ⌀ D2 (30 2230) mm – – – – – 26 26 – 29 – 35 45 – ⌀ D2 (30 2235, 30 2252, 30 2266, 30 2267) mm 12 12 12 21 21 24 24 27 27 33 33 44 44 982