PRODUCTS » Breaking » Excellence Line Hydraulic Hammers » Small Range » Small Range: 777E

Small Range: 777E

Small Range: 777E

Reliable and versatile Rammer 777E is designed for optimum carrier compatibility in the 2.6 to 9.5 tonne range. The 390 kg hammer has been designed to please the specific demands of rental fleet operators. The 777E 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.

Small Range: 777E

Features

  • High pressure membrane accumulator
  • Twin handed, smart
  • Tubular accumulator
  • Vibration and sound suppressed
  • Flange mounting
  • CBE+ (Constant Blow Energy plus)
  • No tie rods
  • Single part tool bushing retained with shared tool pin
  • Fast-change tool system
  • RD3 incl. MyFleet (as standard)

Applications

  • Primary demolition
  • Secondary demolition
  • Recycling
  • Boom mounted applications
  • Trenching
  • Landscaping
  • Cutting of asphalt or frozen ground
  • Ground compacting

Specification

Minimum working weight, flange mounted  *1 390 kg 860 lb
Weight 320 kg 710 lb
Working length 1449 mm 57.0 in
Impact rate (frequency) 500 – 1700 bpm
Operating pressure 90 – 140 bar 1305 – 2030 psi
Oil flow range 40 – 120 l/min 10.6 – 31.7 gal/min
Pressure relief setting  *2 140 – 190 bar 2030 – 2755 psi
Pressure relief max 220 bar 3190 psi
Pressure in LP-circuit 36 – 38 bar 520 – 550 psi
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″
Return line connection (OUT) BSPP-internal 3/4″
Pressure line size, min. inner diameter 19 mm 0.75 in
Return line size, min. inner diameter 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
Skid steer, robot weight, optimum 3.3 – 5.2 t 7300 – 11500 lb
Skid steer, robot weight, range  *3 2.6 – 6.3 t 5700 – 13900 lb
Miniexcavator, tractor backhoe weight, Optium 4.9 – 7.8 t 10800 – 17200 lb
Miniexcavator, tractor backhoe weight, Range  *3 4.3 – 9.5 t 9500 – 20900 lb
Noise level, measured (2000/14/EC) 120 dB(A)
Noise level, guaranteed (2000/14/EC) 124 dB(A)
*1   Includes average mounting bracket and standard wear parts
*2   Minimum setting = actually measured operating pressure + 50 bar or 725 psi
*3   Check carrier allowed attachment weight from carrier manufacturer. Check application requirements.
KEEP IN TOUCH