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Rockland Manufacturing Company

Stick Mounted Hydraulic

Stick Mounted Hydraulic
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BT-H Hydraulic Thumbs have been the thumb of choice for thousands of contractors. They deliver more value than any other thumb. The positive three-point grip is just like picking up something with your thumb and first two fingers. The narrow design keeps thumb weight to a minimum for greater lift capacity.


  • Built-in cylinder guard for cylinder rod protection.
  • Thumb lock - this small but important feature eliminates thumb down drift, thumb jiggle, and accelerated pin wear.
  • Sealed and lubricated replaceable, heat-treated bushings and pins.
  • Easy transport. Transport your excavator anywhere without having to remove your thumb! Rockland thumbs will never hit your excavator's boom. Guaranteed!
  • Easy installation. Thumb pad simply mounts to the excavator's stick and then hydraulics are connected.
  • Available in a wide variety of widths and sizes to suit any application.
  • Designed to match the performance capabilities of your excavator or backhoe.


Rockland Thumbs Buckets are guaranteed against failure due to defective design, materials, or workmanship for a period of one year or 2,000 hours.


BT-H Standard Length Thumb

Breakout Range10,001 - 25,000 lb.25,001 - 33,000 lb.33,001 - 52,000 lb.52,001 - 70,000 lb.70,001 - 90,000 lb.
Category AA A B C D
Min. Excavator Weight (lbs.) 10,001 25,001 33,001
Max. Excavator Weight (lbs.) 25,000 33,000 52,000 70,000 90,000
Weight (lbs.) 570 795 820 1120 1120

BT-H Coupler Length Thumb

Category A B C D
Min. Excavator Weight (lbs.) 25,001 33,001 52,001 70,001
Max. Excavator Weight (lbs.) 33,000 52,001 70,000 90,000
Weight (lbs.) 840 840 1260 1295

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