Guides
Practical guides on excavator attachment fitment, from hydraulic hammers and quick couplers to bucket wear parts. Written for contractors, fleets and dealers who need clear specs.
How to find the right hammer
Tonnage, coupler and mounting, pin-on checks, and quote-only fitment — step by step.
How to identify a hydraulic hammer
Read the data plate, ID a breaker without one, and the six photos to send for a quote.
Quick coupler or pin-on? Measure attachment fitment
Read the coupler size, measure pins, centres and ear width, and check weight before you order.
Hammer oil flow and pressure: check your excavator
The hydraulic numbers a hammer needs, how to flow-test the auxiliary circuit, and what to send for a check.
Need a specific machine match? Request a fitment check or email hello@thunderline.eu.