Looking for an alternative power source to operate your rammers? ESI provides the solution with our air motor-powered rammers. Perfect for those applications where a spark-operated motor is not desirable and it provides a clean low-maintenance version of one of a construction site’s staple pieces of equipment. Requiring only 60 CFM of air the ETR50A can operate easily off of your job site air compressor.
ETR50A
ETR50A Air Powered Rammer
TECHNICAL DATA
DIMENSION (LxWxH) - in (mm)

28.9 x 15.3 x 40.1 (733 x 390 x 1,022)

OPERATING WEIGHT - lbs (kg) 121 (55)
SHOE SIZE (LxW) - in (mm) 13.1 x 10.8 (333 x 275)
STROKE - in (mm) 2.8 (70)
IMPACT FORCE - lb (kg) 2,205 (1,000)
BLOWS PER MINUTE 600 - 650
TRAVEL SPEED - ft/min (m/min) 32.8 - 42.7 (10 - 13)
COMPACTED AREA - ft²/h (m²/h) 2,799 (260)
POWER TYPE AIR
AIR CONSUMPTION 60 CFM
Examples of applications where an air-powered rammer would be desirable:

• Inside of buildings where engine exhaust
will be a problem
• Down in deep trenches where engine
exhaust can accumulate
• Use in oil refineries where
spark-operated equipment may not be desirable
• Use in place of an electric rammer and not worry about electric cable length or voltage line loss – and much safer!

To service between uses requires only a quick wash and checking of the rammer bottom oil reservoir – that’s it!
No engine to service which also eliminates many of your typical rammer service issues.

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ETR70A
ETR 70A Photo
TECHNICAL DATA
DIMENSION (LxWxH) - in (mm)

30.3 x 16.1 x 42.8 (770 x 410 x 1.067)

OPERATING WEIGHT - lbs (kg) 172 (78)
SHOE SIZE (LxW) - in (mm) 15.8 x 13.5 (335 x 285)
STROKE - in (mm) 3.2 (80)
IMPACT FORCE - lb (kg) 3.527 (1,600)
BLOWS PER MINUTE 630 - 680
TRAVEL SPEED - ft/min (m/min) 29.5 - 39.4 (9 - 12)
COMPACTED AREA - ft²/h (m²/h) 3.229 (300)
POWER TYPE AIR
AIR CONSUMPTION 60 CFM

Examples of applications where an air-powered rammer would be desirable:

• Inside of buildings where engine exhaust
will be a problem
• Down in deep trenches where engine
exhaust can accumulate
• Use in oil refineries where
spark-operated equipment may not be desirable
• Use in place of an electric rammer and not worry about electric cable length or voltage line loss – and much safer!

To service between uses requires only a quick wash and checking of the rammer bottom oil reservoir – that’s it!
No engine to service which also eliminates many of your typical rammer service issues.

download pdf

ETR85A
ETR85A Air Powered Rammer
TECHNICAL DATA
DIMENSION (LxWxH) - in (mm)

30.3 x 16.1 x 42.8 (771 x 409 x 1.086)

OPERATING WEIGHT - lbs (kg) 192 (87)
SHOE SIZE (LxW) - in (mm) 13.1 x 11.2 (335 x 285)
STROKE - in (mm) 3.2 (82)
IMPACT FORCE - lb (kg) 3.968 (1.800)
BLOWS PER MINUTE 650 - 700
TRAVEL SPEED - ft/min (m/min) 26.2 - 36.1 (8 - 11)
COMPACTED AREA - ft²/h (m²/h) 3.337 (310)
POWER TYPE AIR
AIR CONSUMPTION 80 CFM

Examples of applications where an air-powered rammer would be desirable:

• Inside of buildings where engine exhaust
will be a problem
• Down in deep trenches where engine
exhaust can accumulate
• Use in oil refineries where
spark-operated equipment may not be desirable
• Use in place of an electric rammer and not worry about electric cable length or voltage line loss – and much safer!

To service between uses requires only a quick wash and checking of the rammer bottom oil reservoir – that’s it!
No engine to service which also eliminates many of your typical rammer service issues.

download pdf