MP345 Concrete Cutter Jaw

MP345 Concrete Cutter Jaw

MP345 with Concrete Cutter Jaw


Cat® Multi-Processors accept multiple interchangeable jaws for a wide range of demolition tasks. Faster cycle times get your jobs done quicker. Greater power means taking on bigger jobs. Quick jaw change gives you the right tool for the task at hand, without slowing you down. All built on a durable, easy to maintain platform.

Cycle Times are 50 Percent Faster

  • New speed booster technology dynamically shifts hydraulic force from speed to boost mode, automatically as you operate.
  • You’ll spend less time waiting for the jaw to open or close to contact, as the speed valve automatically adjusts to fast flow when there’s no load.
  • Maximum crushing/cutting force is applied as soon as the jaw contacts material.

Up to 19 Percent More Force

  • Process more per hour, ship more per shift, make more every day. Speed booster magnifies hydraulic force when the jaw contacts material, quickly making the cut.
  • Mount more power even on smaller excavators. Compact design keeps the center of gravity as close as possible to the machine.
  • Get maximum performance and total support with a complete Cat demolition solution. Programs for the MP are built into the Next Gen Cat operator display. Single point of support your entire system by your local Cat dealer.

Change Jaws in 15 Minutes

  • Innovative jaw locking enables a single operator to easily change jaws in 15 minutes or less. Requires only standard hand tools.
  • Simple and safe jaw changes are part of the design. Every jaw sits stable, even on the roughest work site, on the included jaw stand.
  • MP332 accepts these jaw types:
    • Concrete Cutter – outer jaw cracks concrete; inner shear jaw cuts steel
    • Demolition – opens wide to crack the largest concrete structures
    • Pulverizer – crushes concrete, separating the rebar
    • Shear – cuts structural steel, pipe, and cable

Durable and Maintainable

  • Protect your investment and maintain performance, quickly and economically. Jaws are protected with easily changed, individually replaceable wear parts.
  • Get more production time per cutter before replacement. Most cutting blades can be flipped in two ways, to use four different cutting edges.
  • Even when deep into debris, the cylinder rod is armored to prevent damage and the main cylinder body is protected inside the housing.

  • Specs
  • Docs



Long Name:
MP345 Concrete Cutter Jaw
MP345 Concrete Cutter Jaw


Cycle Time - Open
1.9 s / 1.9 s
Cycle Time - Close
1.3 s / 1.3 s
Crushing Force - Primary Cutter
573 Sh Ton / 5102 kN
Crushing Force - Cutter Tip
268 Sh Ton / 2382 kN
Crushing Force - Tooth Tip
188 Sh Ton / 1670 kN

Hydraulic Requirements

Jaw Circuit - Max. Oil Pressure
350 bar / 5076 psi
Jaw Circuit - Max. Oil Flow
360 l/min / 95 gal/min
Rotation Circuit - Max. Oil Pressure
2321 psi / 160 bar
Rotation Circuit - Max. Oil Flow
50 l/min / 13 gal/min

Dimensions - Jaw

Jaw Depth
36 in / 913 mm
Cutter Length
20 in / 501 mm
Jaw Opening - Maximum
40.3 in / 1023 mm
Jaw Width - Fixed
509 mm / 20 in
Jaw Width - Moveable
7.4 in / 187 mm


Weight - Housing, Jaw and Bracket
4316 kg / 9515 lb
Weight - Jaw Only
1971 kg / 4345 lb

Recommended Carrier Weight

Excavator Minimum
45 tons
Excavator Maximum
65 tons