Industrias Enrique Galan Machine Tool Collets, PCN Chucks and BS-6 Transfer Machines

DIN 6343 Single-Spindle Automatic Lathe Collets and Double-Taper F2C Identification

Selecting clamping and feed collets from Industrias Enrique Galan (Industrias Enrique Galán, S.A., Barcelona) for single-spindle automatic lathes relies on matching the rear external diameter d, head diameter D, overall length L and cone angle G°.

Within the factory numbering system, DIN 6343 main-spindle collets span from G-4010-F (DIN 6343-17.5; d=17.5 mm, D=22 mm, L=51 mm, 15° angle, code 125E) and G-1716-F (DIN 6343-22; d=22x30x55 mm, 140E) up to G-1742-F (DIN 6343-48; d=48x60x94 mm, 173E) and G-2960-F (DIN 6343-66; d=66x84x110 mm, 185E).

For abrasive cold-drawn bar stock, carbide-lined collets (/MD suffix) prevent bore wear, while Traub A/TB/TC-25, TB-30 and A-42 automatics utilize double-taper F2C models G-4125-F2C, G-4126-F2C, G-4130-F2C and G-2740-F with 17° to 25° cone angles.

Multi-Spindle Tooling Sets for Schütte, Gildemeister, Index and Automatic Bar Loaders

Outfitting six- and eight-spindle automatic lathes from Schütte (models SF 12/13, SE 16/18, SB 16, SF 20, SB/SD 25, SD/VD/SF 32, VB 35, AD/SF 40, SB 45, VD/VB 50, SD/SF 63, VB 65 and SD/VD 80), Gildemeister, Index, Wickman and Davenport requires coordinated sets of main clamping collets G-4612-F to G-4680-F (with left-hand rear threads from 22x1 to 100x1.5 mm), bar feed fingers G-4632-A to G-4680-A and counter-spindle pick-up collets G-4618-P to G-4625-P. For CNC turning centers, the factory produces vulcanized sector collet heads matching the Hainbuch Spannstar envelope (G-SS32N/G, G-SS42N/G, G-SS52N/G, G-SS65N/G and G-SF32N for 6–65 mm bars with smooth or serrated bores), ER-8 to ER-40 collets, axial-compensation tapping chucks per DIN 6499/6388, Dunner guide bushes and collet closing levers (gatillos).

PCN Universal CNC Collet Chucks, Expanding Mandrels and DAP Indexing Fixtures

PCN universal collet chucks bolt directly onto standard CNC lathe spindle noses: PCN 40/5 (ASA 5 taper, dimensions A=135, B=113, C=119 mm), PCN 60/6 (ASA 6 taper, A=165, B=140, C=158 mm) and PCN 80/8 (ASA 8 taper, A=220, B=168, C=176 mm).

Each chuck body accepts interchangeable sleeves and caps for standard draw-in collets, double-taper collets for high axial thrust, PCNC bell collets for flanged blanks and PCNI internal expanding mandrels with 1 mm radial expansion.

For short-run stepped parts, emergency collets (Pinzas de emergencia) tempered to 45 HRC are bored directly in the lathe spindle using three locating pins in the collet slots.

Milling and drilling cells use 772.015–772.142 pneumatic fixtures (6 bar air) and DAP-1716 / DAP-1742 indexing units (3/4/6/8/12/24 divisions).

Configuration of Galan BS-6 Modular Transfer Machines and UMG Oleopneumatic Units

Six-station Galan BS-6 modular flexible transfer machines automate multi-axis drilling, tapping and milling by arranging UMG oleopneumatic machining units vertically, horizontally or at compound angles around a rotary indexing table.

Each UMG unit (iron housing, hardened and ground spindle supported at two points, ER20 collet) is driven by a two-speed 1500/3000 rpm motor (0.9–1.1 HP) and generates 190 kg axial thrust at 6–8 bar air pressure across a 70 mm total stroke (drilling up to Ø10 mm in 60 kg/mm² steel, tapping up to M10).

Depending on pulley ratio or frequency inverter control, spindle speeds cover Normal 1400/4150, Fast 1800/6100, Slow 990/2700, Low 425/1475 and reversing 200/605 rpm, complemented by DTA/DTA3 angle heads, DR tapping adapters (4x M6 bolts) and DFL (1:12) / DFR (1:1) milling heads.

ACTRA-25T / Traub A-25 Hybrid Automatic Lathe Architecture and 0–360° Cam Control

In ACTRA-25T rebuilt automatic lathes (engineered on the Traub A-25 mechanical platform), the conventional feed gearbox with change gears, bushings and chains is replaced by a variable-speed motor and toothed-belt transmission, while the main spindle runs on ISO 4 precision bearings.

An electronic programmer driven by a camshaft rotary encoder displays the 0–360° cycle on a touchscreen panel and triggers 6 spindle speeds, 4 camshaft speeds, 4-position turret indexing with spindle reversal for threading and auxiliary relays degree by degree.

Both main-spindle rpm and camshaft feed rates are adjusted directly from the operator console without mechanical gear swaps, enclosed within an interlocked sliding-door safety guard with an independent electric coolant pump and reservoir.

Variacor Poliangolar Rotary Broaching Attachments and Arrosa High-Pressure Coolant

Variacor Poliangolar rotary-oscillating broaching attachments are manufactured from hardened and tempered steel with an induction-hardened, precision-ground oscillating joint.

Mounting the toolholder spindle at an inclined angle on combined axial-radial bearings imparts a wobbling rotary cutting motion to the broach, cutting axial thrust by 70% compared to conventional push broaching and producing blind or through hexagons, squares, Torx recesses and involute splines per DIN 5480, DIN 5481, DIN 5482, SAE J500 and ANSI B 92.1 on lathes and CNC machining centers (Morse taper, Weldon, VDI, HSK and BT-MAS shanks).

High-pressure coolant delivery above 50 bar is maintained by Variacor Arrosa rigid modular nozzles and 360° rotatable HydroVariacor hydraulic fittings (90°–180° elbow range).