CS Unitec Airbor 2-1/16 Inch Air Magnetic Drill with Extended Stroke

Description

Working in cramped refinery pipe racks requires the spark-free power of the CS Unitec AB-4300-2R Air Drill. This pneumatic magnetic drill cuts 2-1/16in diameter holes with an extended 10-1/4in vertical stroke. A permanent magnet base clamps steel securely without electric cords. Field technicians must hook up clean compressed air producing 46 CFM at 90 PSI.

High-tensile cast aluminum gear housings enclose a heavy-duty pneumatic vane motor and precision steel planetary reduction gears. The air motor requires 90 PSI to 100 PSI working air pressure, turning a 3/4in Weldon quick-change arbor. Permanent magnet base dimensions measure 8-1/2in long by 4-1/4in wide. Total unladen tool weight sits at 41 lbs without cutting oil.

Key Features of CS Unitec AB-4300-2R

Refinery maintenance managers buy CS Unitec AB-4300-2R drills to bore holes on live gas lines and offshore drilling rigs without hot work permits. Industrial commercial pricing reflects specialized ATEX safety engineering designed for hazardous industrial atmospheres.

• Rated hole-cutting capacity handles 2-1/16in diameter holes through 2in thick steel pipe walls.
• Extended 10-1/4in vertical stroke accommodates long twist drills and deep hole coring cutters.
• ATEX certified explosion-proof construction permits safe operation in hazardous petrochemical areas.
• Permanent magnetic base clamps steel plates with 1,600 lbs holding force without electric power.
• Pneumatic vane motor delivers 1.5HP of rotary power to drive annular cutters smoothly.
• Pressurized through-spindle cooling system forces lubricant straight to cutter teeth under air pressure.
• Standard 3/4in Weldon tool-free arbor allows rapid cutter changes inside tight pipe corridors.

Air Motor Output Pneumatic Hold Benchmarks

Supplying 90 PSI at 46 CFM yields 1.5HP of drive power, turning annular cutters at 400 RPM under load. The permanent magnetic base holds 1,600 lbs of static clamping force on 1/2in carbon steel. Drilling a 2in hole through 1in structural steel pipe wall takes 52 seconds without motor stall.

Air Valve Throttle Permanent Magnet Care

The rotary air throttle valve provides fine feathering control from zero to full RPM with thumb force. The permanent magnet release lever shifts with 14 lbs of manual lever pressure. Do not buy this air-powered drill for workshops lacking high-volume commercial air compressors.

• Inject 6 drops of 10-weight pneumatic tool oil into the air coupling before each work shift.
• Wipe fine steel filings and pipe scale from the permanent magnet base plate every shift.
• Inspect the slide carriage brass gib strips and adjust backlash set screws every 40 hours.

CS Unitec ATEX Warranty Boxed Inclusions

CS Unitec covers this pneumatic magnetic drill with a 1-Year commercial warranty against manufacturing breakdown. The drill ships inside a heavy-duty plastic transit case weighing 55 lbs total. The package includes the AB-4300-2R drill, air hose whip, coolant tank, safety strap, and manual.