Excavator Hammers Breakers and Post Drivers

Excavator breakers and a post driver, on one page. The hydraulic breakers go from the 1,356-joule JMASB43EBH up to the 19,800-joule JMASB200EBH for 85–130-ton machines, and break rock, concrete and asphalt. The 1,000-joule post driver, for 7 to 10-ton excavators, drives fence and sign posts while a front grapple holds the post. Pick a type, then filter by machine weight.

Shop Excavator Hammers Excavator Hydraulic Hammers

  • Tell us your machine, we confirm the fit before shipping.
  • Complete hammer kit
  • Ships nationwide from Miami

Find the hammer for your machine

Pick your brand and model. We show the breakers and post drivers that fit it.

All Excavator Hammers

Complete Kit. Ready to Work.

  • Hydraulic Hoses Hydraulic Hoses
  • Moil & Wedge Chisel Bits Moil & Wedge Chisel Bits
  • Nitrogen Bottle & Gauges Nitrogen Bottle & Gauges
  • Seal Kit Seal Kit
  • Tool Box Tool Box

Breakers also ship with a bolt-on head for your machine, pins included. The post driver ships with a mounting head for your machine (included), 2 hoses, 2 bits, a tool box, a seal kit, a nitrogen bottle and a nitrogen gauge.

Pick the Right Excavator Hammer in 3 Steps

  1. Name the job.Breaking rock, concrete or asphalt takes a hydraulic breaker. Driving fence or sign posts takes the post driver.
  2. Match the machine.Breakers go by operating weight; send us your machine model and we confirm the fit before shipping. The post driver is for 7 to 10-ton machines, with the head for your exact machine included.
  3. Send us the model.Make, model and auxiliary flow. We confirm the fit before it ships.

Why excavator owners buy from JMA

  • Breakers and the post driver on one page, filtered by type.
  • Each breaker ships with a bolt-on head for your machine, pins included.
  • The post driver's front grapple holds the post: one operator, no helper.
  • Ships from our Doral (Miami), FL warehouse, with pickup available.

Excavator Hammer and Post Driver FAQ

  1. Hydraulic breaker or post driver: which one do I need?

    A hydraulic breaker breaks rock, concrete and asphalt with a moil or wedge chisel. A post driver drives fence and sign posts into the ground. They are separate attachments, so a crew that does both needs both.

  2. Which breaker fits my excavator's weight?

    Pick by operating weight: 10–15 tons, JMASB50EBH (2,712 J); 18–26 tons, JMASB81EBH (4,500 J); 85–130 tons, JMASB200EBH (19,800 J). For the JMASB43EBH (1,356 J), JMASB60EBH (4,067 J), JMASB121EBH (10,178 J), JMASB131EBH and JMA349EBH (13,558 J), send us your machine model and we confirm the fit before shipping. Oil flow and pressure for each model are on the excavator hydraulic hammer page.

  3. What does the 1,000-joule post driver fit?

    Excavators from 7 to 10 tons, and the same post driver works on skid steers, mini excavators and backhoes. JMA supplies the head for your exact machine, included. Fitment Promise: we confirm the fit for your exact machine before shipping. If it doesn't fit, we exchange it.

  4. How fast does the post driver hit?

    The 1,000-joule post driver delivers 400–800 blows per minute and takes a 75 mm chisel bit, 720 mm long.

  5. What is in the box with the excavator post driver?

    Exactly this: a mounting head for your machine (included), 2 hoses, 2 bits, a tool box, a seal kit, a nitrogen bottle and a nitrogen gauge. The breakers on this page come with a bolt-on head for your excavator instead, pins included.

  6. How does the post driver hold the post?

    A front hydraulic grapple grabs the post and holds it in place, then the hammer drives it down. One operator, no helper holding the post.

  7. Can I order the post driver while it shows out of stock?

    Yes. Use Request a Quote on its card and we send you the lead time.

  8. What happens if it doesn't fit my excavator?

    Fitment Promise: we confirm the fit for your exact machine before shipping. If it doesn't fit, we exchange it.

  9. Where do excavator hammers ship from?

    Our warehouse in Doral (Miami), FL, nationwide, and pickup is available. Breakers and the post driver carry a 24-month warranty; coverage varies by component, see the warranty card. The post driver also has a lifetime warranty on welds.

Local support in Miami

Not Sure Which Excavator Hammer?

Tell us the excavator's make, model and operating weight, and what the job is: breaking or driving posts. We point you to the right one and confirm the hookup before it ships.

Talk to JMA 407-564-3054