Deep-hole & gundrilling systems
Deephole drilling and gundrilling systems for long-length solid drilling, counter-boring and centre-hole work on screws, barrels and round-bar stock.
Deephole Drilling Machine
Twin-barrel-supported solid drilling and counter-boring, up to 5 metres.
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Gundrilling — 3 Axis (1m depth)
Mitsubishi M80-controlled 3-axis gundrilling for mould tooling.
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Gundrilling — Centre Hole
3000mm-length centre-hole gundrilling for extrusion screws and long bar stock.
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Gundrilling — 3 Axis (2000mm)
S7-1200-controlled 3-axis gundrilling for plywood-press and rubber-moulding plates.
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Double Head Drilling Unit
Twin-spindle centre-hole drilling for mass-production lines.
View specificationPrecision Drilling & Gundrilling — Technical FAQ
What depth-to-diameter ratio can the Gundrilling machines achieve?
Our 3-axis CNC gundrilling machines handle depth-to-diameter ratios up to 100:1 with hole depths up to 2,000 mm and hole drift under 0.05 mm per meter.
What coolant pressure system is utilized for deep hole chip evacuation?
Equipped with a 100-Bar high-pressure oil/coolant delivery system with dual-stage paper band filtration and temperature chiller to ensure smooth chip evacuation.
Can the 3-Axis Gundrilling machine process complex mold bases?
Yes — Mitsubishi M80 CNC control supports multi-angle compound waterhole drilling, block indexing, and canned gundrilling cycles.
How does the Centre-Hole Gundrilling machine align long shafts?
Opposed dual spindle heads with hydraulic self-centering vises clamp concentric shaft forgings up to 1,500 mm length with 0.025 mm TIR alignment.
What drill diameters are supported on the Double Head Drilling Unit?
Standard drilling units accommodate twist drills and gundrills from Ø3 mm up to Ø32 mm in alloy steel, stainless, and cast iron.
Are spare spindles and guide bushings stocked for fast dispatch?
Yes — Probiters stocks standard whip guides, guide bushings, coolant seals, and replacement spindle assemblies at our Ahmedabad facility.