Deep Hole Drilling Machine
TB 2 / TB 4tiff-ima

LOCH - Deep Hole Drilling Machine
TB 2 / TB 4

Deep Hole Drilling Machines are now used profitably in nearly all areas of machine building, metallurgical engineering and semi-finished product manufacturing. Medium and heavy machines are mainly built with 1 spindle. The BTA drilling system is generally used herein. For difficult spot-drilling or sealing situations, the ejector system (dual tube system) is used. By means of an ingenious module system, a change can be carried out in best time from one system to another or between the different drilling diameters or workpiece clamping applications.

The following features of these machines guarantee the productivity and drilling accuracy combined with great ease of operation for years:

  • Drill spindle drive with frequency-controlled drive
  • Feed by frequency-controlled servo-drive
  • Feed spindle or rack drive located backlashfree
  • Drill spindle with precision bearings for quiet rails combined with rolling elements
  • Guide system with hardened and ground steel guide rails combined with rolling elements (almost wear-free and without stick-slip effect)
  • Digital drill breakage safety device for best possible tool protection

LOCH - Deep Hole Drilling Machines of the range TB 2/TB 4

have been known on the market for decades as extremely robust-built machines and are taken as a symbol of simple machines which are, nevertheless, used for a variety of purposes. The experience of many years, especially with machines with high cutting capacity, the special requirements of customers, and the cost-reducing module system, have had a far-reaching impression on the current image of the machines and their conception. Developments on the whole and in detail will, above all, make the machines fulfil the requirements relating to drilling accuracy and to the ever more efficient drilling tools.

The following accessories and special-purpose accessories give LOCH-Deep Hole Drilling Machines their manifold possibilities:

Machine tables Standard tables, special tables, lifting and sliding tables, also co-ordinate tables and circular indexing tables with and without control gear

Clamping equipment Centering tailstocks, counterrotating tailstocks and special tailstocks with and without indexing apparatus, also cross adjustment for eccentricallylocated bores
Radial clamping vices in standard or special design, hand- or poweroperated chucks, special workpiece-related clamping devices

Feed equipmentChain conveyors, lifting beam conveyors, gantry loading equipment and pallet systems with and without interlinking

Control system Latest CNC- or PLC-control
Fault diagnose in clear text or graphically on screen
Highly sensitive digital drill breakage safety device, coolant monitoring with signal indication by breakdown, roboter-loading

Other options Quick-action chuck, back cooling equipment for the coolant, workpiece steady rests at longer workpieces, complete cover of the machine, online-service

TB 4-45-6000

TB 4-45-6000 Single spindle Deep Hole Drilling Machine for BTA-solid drilling and counterboring from 16-250 mm Ø

Drilling depth 6000mm
TB 4-45-4000

Deep Hole Drilling Machine for BTA-solid drilling and counterboring 16-250 mm Ø

Drilling depth 4000mm
TB 6-75-1000

Deep Hole Drilling Machine for BTA-solid drilling and counterboring/ core drilling 30-350 mm Ø

Drilling depth 1000mm
TB 4-45-1000

Deep Hole Drilling Machine for gundrilling and BTA-solid drilling and counterboring 6–150mm Ø

Drilling depth 1000mm


Types of machine   TB 2-37 TB 4-51 TB 6-75
Drilling depth from – to mm 300–8000 300–10000 300–10000
Solid drilling range mm Ø 16-70 16-120 30-175
Counterboring mm Ø –150 –250 –350/400
Core drilling mm Ø –100 –200 –280
Input power kW 37 51 74
Drilling system BTA-Ejektor BTA-Ejektor BTA-Ejektor
Spindle speeds stepless stepless stepless
Speed range min-1 110–1740 64–1540 44–1200
Feed, infinitely variable mm/min 0–1000 0–1000 0–1000
Rapid traverse, forward & return mm/min 7500 7500 7500
Height of centres, standard mm 300–400 300–400 300–400
Coolant tank volume l 1000–5000 7000–10000 7000-10000
Coolant flow rate l/min 30–400 40–700 100–1400