Product Weight


Product Carrier Weight


Oil Flow Range
40-120 l/min

Designed to satisfy the specific demands of rental fleet operators, the 777E, is designed for optimum carrier compatibility and installation flexibility. It features a pivoting hose connecting block and a reversible manifold that allows for right or left hand hose connections, in addition to its ability to accept a wide range of oil flows and pressures. The Rammer 777E comes with the remote monitoring hardware RD3 installed.

View Product brochure.



  • Flange mounting
  • Twin-handed
  • Single lower tool bushing
  • Membrane type accumulator
  • Vibration and sound suppressed
  • CBE (Constant blow energy)
  • Factory installed RD3 for MyFleet
  • No tie rods


  • Primary Demolition
  • Landscaping
  • Secondary Demolition
  • Trenching
  • Recycling
  • Boom mounted applications
  • Asphalt Cutting
  • Ground Compacting

Compatible with Standard Chisel Tool, Moil Point Tool, Asphalt Cutting Parallel Tool, Asphalt Cutting Traverse Tool, Compacting Tool and Special Tool Grease 

  Metric Imperial
Weight 315 kg 690 lb
Working Length 1449 mm 57.0 in
Minimum working weight, flange mounted *1 385 kg 850 lb
Impact rate (frequency) 500-1700 bpm  
Operating pressure 90-140 bar 1305-2030 psi
Pressure relief min *2 140-190 bar 2030-2755 psi
Pressure relief max 220 bar 3190 psi
Pressure in LP-circuit 36-38 bar 520-550 psi
Oil flow range 40-120 l/min 10.6-31.7 gal/min
Back pressure max 20 bar 290 psi
Input power 28 KW 38 hp
Tool diameter 80 mm 3.15 in
Pressure line connection (IN) BSPP-internal 3/4 in  
Return line connection (OUT) BSPP-internal 3/4 in  
Pressure line size *3 19 mm 0.75 in
Return line size *3 19 mm 0.75 in
Optimum oil temperature 40-60°C 104-140°F
Allowed oil temperature range -20-80°C -4-176°F
Optimum oil viscosity at operating temperature 30-60 cSt  
Allowed viscosity range 20-1000 cSt  
Miniexcavator weight optimum 4.9-7.8 t 10800-17200 lb
Miniexcavator weight, range *4 4.3-9.5 t 9500-20900 lb
Miniexcavator weight, range *4 4.3-5.2 t 7300- 11500 lb
Skid steer, robot weight, optimum` 3.3-5.2 t 7300-11500 lb
Skid steer, robot weight, range *5 2.6-6.3 t 5700-13900lb
Noise level, measured (2000/14/EC) 120 dB(A)  
Noise level, guaranteed (2000/14/EC) 124 dB(A)  

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