Rammer_2577PRO

Rammer 2577 PRO

The Rammer 2577 PRO has a sturdy housing design and wear resistant wear plates making it perfect for horizontal working duties in applications such as tunneling.

Hydraulic hose connections for grease, air and water on a top cover plate have been sealed through apertures to withstand extreme working conditions and sealed housing structure prevents the ingress of dust and dirt ensuring extended working life of both the breaker and the tool.

This 1,660kg Rammer 2577 PRO is suitable for carriers in the 23 to 34 tonne range.

Key Specifications

Product Weight

1,660kg

Product Carrier Weight

23.0 – 34.0 t

Oil Flow Range

140 – 200 l/min

Features

  • High pressure membrane accumulator
  • Indexable power cell (left or right handed)
  • PRO / Tunnel housing
  • Optimized hydraulic connection points towards carrier
  • PRO / Tunnel suspension
  • FBE (Fixed Blow Energy)
  • PRO / Tunnel powercell
  • RamValve
  • Idle blow protector
  • VIDAT tie rods
  • RAMLUBE I (optional)
  • Factory Installed Ramdata II
  • Ramair (optional)
  • AGW (optional)
  • RAMMER Water-Jet (dust suppression)

Applications

  • Primary demolition
  • Hammer tunneling
  • Recycling

Compatible with PRO Hard Rock Chisel Tool, PRO Limestone Chisel Tool, PRO Moil Point Tool, PRO Tunneling Chisel Tool.

Specifications

Minimum Working Weight, flange mounted *1

1940 kg

Weight

1660 kg

Working length

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)

ORFS ISO 8434-3 ( 1 11/16-12 UN )

Return line connection (OUT)

ORFS ISO 8434-3 ( 1 11/16-12 UN )

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 - 28t

Carrier weight, range *3

23 - 34 t

Noise level, measured (2000/14/EC)

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

123 dB(A)

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