VK 4125 Chipping Hammer

Chipping Hammer – VK 4125 ( 17 lb )

The VK 4125 is a 7.6 kg chipping hammer, technically equivalent to the Chicago Pneumatic CP 4125. At 1,650 blows per minute on 16 l/s of air it hits harder and slower than the VK 4123, which is what shipyards, refineries and foundries want for scaling and heavy cutting rather than light trimming. Spline locking stops the handle or cylinder working loose. Available in 2, 3 or 4 inch cylinder stroke versions with round or hex bushing.

 Features

• Heat treated cylinder

• Spline locking to prevent loosening of handle or cylinder

• Powerful, yet compact and light - weight

• Rugged construction, hardened steel cylinder and handle

• Teasing throttle for precise control

• Pistol grip handle with self-closing outside trigger

• Available in 2”, 3” or 4” cylinder stroke version

Technical Data

# Technically equivalent to CP 4125 Pneumatic Chippers

VK 4125 Chipping Hammer FAQs

Can the VK 4125 replace a CP 4125?

Yes. The VK 4125 is technically equivalent to the Chicago Pneumatic CP 4125, manufactured by Vikay in India. A 28.6 mm piston on a 76.20 mm stroke gives 1,650 blows a minute at 7.6 kg on 16 l/s of air at 6.2 bar. It takes the same 14.7 mm shank, so chisels, cup tools and scaling tools already on site will fit.

Will Vikay parts fit my CP 4125?

Yes. Vikay manufactures the VK 4125, which is technically equivalent to the Chicago Pneumatic CP 4125, and the replacement parts alongside it. The same parts serve both, so a machine already in service can be kept running on them. The CP 4125 Chicago Pneumatic Chipping Hammer Parts page carries the full listing, part number by part number.

Which Vikay chipping hammer size do I need?

This page is the VK 4125, the foundry and shipyard size at 7.6 kg. The VK 4123 is the lightest, for light to medium chipping. The VK 4125 is the foundry and shipyard size. The VK 4130 is the heaviest, for medium to heavy chipping, cutting and trimming. They correspond to the Chicago Pneumatic CP 4123, CP 4125 and CP 4130.

Will my compressor run the VK 4125?

The VK 4125 needs 16 l/s at 6.2 bar (34 cfm at 90 psi), delivered continuously. The inlet is 9.5 mm, so run at least that hose bore: anything narrower throttles the machine before the compressor does. At 1,650 blows a minute the draw is constant rather than intermittent, so size the compressor against that figure rather than against a peak.

Will my existing chisels, cup tools and scaling tools fit the VK 4125?

The VK 4125 takes a 14.7 mm shank (0.580"), so any chisel cut to that shank fits, whatever machine it came off. If the shank does not match, the tools are the cheaper thing to change. The retainer is the spring type.

See also: Vikay moil points and chisels