BT Tamping Rammer | 4046-Lbs. Force | 12-in. x 11-in. | 190 lbs. | Yanmar L48 BTR78Y

The BTR78Y tamping rammer is built for reliability and comfort with quality components that are made to last. This rammer is driven by a 4 stroke Yanmar L48 engine, with a two stage fuel filter and an air cleaner on the crankcase to ensure reliability in the long term. The 11 by 11.8 In. plate provides ample surface compaction, while being easy to maneuver in tight spaces. Operators will be comfortable thanks to the anti-vibration mounts to isolate the handle, and can easily adjust their desired speed with the cast aluminum throttle. All the impact components are precision machined and cast for longevity, and the German-made polyurethane bellow is guaranteed for three years.

How The BT Tamping Rammer (Yanmar Diesel) Compares To Other Tamping Rammer Options

Contractors evaluating jumping jack tamping rammers usually face this question: should I get the gas-powered BT rammer with a Honda GXR120 engine, this diesel Yanmar version, or a budget GXR120-powered rammer from another brand?

Here's the honest comparison:

Why The BT Tamping Rammer (Yanmar Diesel) Is Worth The Investment

This isn't just a jumping jack tamping rammer, it's powered by a Yanmar diesel engine delivering higher 15.7k Newton impact force than the gas-powered version, giving contractors more compaction power alongside the fuel efficiency and durability that diesel engines are known for.

The BTR78Y specifically addresses the needs of contractors compacting trenches, foundations, and backfill who want the added impact force and diesel fuel economy of a Yanmar engine without sacrificing the same German-made bellow reliability found across the BT rammer line.

More Impact Force, Diesel Efficiency. The Yanmar L48 diesel engine delivers 15.7k Newton of impact force, more than the gas-powered version, while diesel fuel efficiency reduces ongoing fuel costs for contractors running the rammer regularly across trench and foundation jobs.

Built For Reliable, Comfortable Operation

The 4-stroke Yanmar L48 diesel engine delivers dependable power with a two stage fuel filter and a large air cleaner on the crankcase to extend engine life

Large anti-vibration mounts isolate the handle, reducing hand-arm vibration and improving operator comfort during extended use

The durable cast aluminum throttle lets the operator adjust speed to their preference with precision

Engineered For Long-Term Durability

All impact components are precision cast and machined for long-term durability under repeated compaction cycles

The 12.8 by 11 in. plate covers plenty of ground while remaining easy to maneuver in tight trenches and foundation work

Delivers 15.7k Newton impact force at 640 to 680 impacts per minute with a 2 to 3 in. jump during operation

Real Savings

Diesel fuel efficiency reduces ongoing fuel costs compared to the gas-powered version, especially under regular daily use

A 3-year guarantee on the German-made bellow reduces the risk of a costly and disruptive mid-season replacement

Precision cast and machined impact components reduce the frequency of part replacement compared to lower-grade rammers

Free shipping and no sales tax through Summit Forge Supply keeps the total cost down compared to buying elsewhere and paying tax and freight separately

The Bottom Line Contractors compacting trenches, foundations, and backfill who want more impact force and diesel fuel efficiency can't get that combination from the gas-powered rammer alone. The BT Tamping Rammer (Yanmar Diesel) is built with a powerful diesel engine, precision cast impact components, and a German-made bellow backed by a 3-year guarantee, so it delivers stronger compaction with lower fuel costs over time. For anyone running a rammer daily as part of trench or foundation work, this is the machine built to keep going while saving on fuel.

• Driven by a reliable 4 stroke Yanmar L48 diesel engine
• 11 by 11.8 In. plate covers plenty of ground while being easy to maneuver
• 15.7k Newton impact force at 640 to 680 impacts per minute
• 2 to 3 In. jump during operation
• Impact parts are precision cast and machined for long-term durability
• Durable cast aluminum throttle adjusts speed to operator’s preference
• Large anti-vibration mounts isolate handle for operator comfort
• Large air cleaner on crankcase, and two stage fuel filter to extend engine life
• High quality German-made polyurethane bellow with 3-year guarantee

Equipment Type	Tamping Rammer
Compaction Force (Lb.)	13,276 lb.
Dimensions	12 in. L x 12 in. W x 40 in. H
Engine	L48 Diesel
Engine Brand	Yanmar
Horsepower	4.7 HP
Impacts per Minute	650-680
Jump Height	2-3 in.
Plate Size L x W (In.)	12.8 in. L × 11 in. W
Warranty	1 year, 3 year guarantee on bellow
Weight	172 lb.