Rammer_2577E

Rammer 2577E

The 1,410kg Rammer 2577E rockbreaker with an impact rate of 450 – 750 blows per minute features Rammer’s Fixed Blow Energy operating principle, which ensures optimum impact energy with every blow, regardless of hydraulic flow fluctuations.

The 2577E is suitable for carriers in the 21 to 32 tonne range and it comes with the remote monitoring hardware RD3 installed.

Key Specifications

Product Weight

1,410kg

Product Carrier Weight

21.0 – 32.0 t

Oil Flow Range

140 – 200 l/min

Features

  • High pressure membrane accumulator
  • Service access to high pressure membrane accumulator
  • Indexable power cell (left or right handed)
  • Vibration and sound suppressed
  • Heavy Duty housing (round corners)
  • Stone claws on housing
  • Optimized hydraulic connection points towards carrier
  • FBE (Fixed Blow Energy)
  • RamValve
  • Idle blow protector
  • VIDAT tie rods
  • Fast-change tool system
  • Field replaceable lower tool bushing
  • RAMLUBE I (optional)
  • RAMLUBE II (optional)
  • RD3 incl. MyFleet (as standard)
  • Air connection
  • Ramair (optional)

Applications

  • Primary breaking
  • Secondary breaking
  • Primary demolition
  • Secondary demolition
  • Boom mounted applications
  • Underwater breaking
  • Trenching

Compatible with Standard Chisel Tool, Long Chisel Tool, Hard Rock Chisel Tool, Limestone Chisel Tool, Moil Point Tool, Long Moil Point Tool, Pyramid Tool, Standard blunt Tool, Long blunt Tool, Super Blunt Tool.

Specifications

Minimum Working Weight, flange mounted *1

1670 kg

Weight

1410 kg

Working length

2299 mm

Impact rate (frequency)

450 - 750 bpm

Operating pressure

135 - 145 bar

Oil flow range

140 - 200 l/min

Pressure relief setting  *2

190 bar

Pressure relief max

220 bar

Back pressure max

10 bar

Input power

48 kW

Tool diameter

135 mm

Pressure line connection (IN)

SAE 6000 psi 1 1/4"

Return line connection (OUT)

SAE 6000 psi 1 1/4"

Pressure line size, min. inner diameter

26 mm

Return line size, min. inner diameter
32 mm

Grease connection

BSPP-internal 3/8"

Optimum oil temperature

40 - 60°C

Allowed oil temperature range

-20 - 80°C

Optimum oil viscosity at operating temperature

30 - 60 cSt

Allowed viscosity range

20 - 1000 cSt

Carrier weight, optimum
23 - 30t

Carrier weight, range *3

21 - 32 t

Noise level, measured (2000/14/EC)

120 dB(A)
Noise level, guaranteed (2000/14/EC)

124 dB(A)

Air Connection (A)
BSPP-internal 3/8"
  • *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.

Specifications are subject to change without notice.