Bullstern Excavator Attachments

Home

Thumb MG

Thumb MP

Thumb MT

Grapple Bucket ST

Rotating Grapple Bucket RB

Rotating Rock Grab RS

Vibro Hammer

Contact us

 

Excavator Rotating Rock Grab   RS-series


Features

Hydraulic automatic rotation system uses slewing bearing system like excavator rotation system instead of gear reducer type which often breaks neck.

Designed to prevent damage of flow control valve and motor.

Optimized rotation speed can be adjusted by adoption of specially manufactured bearing. Deceleration function is adopted in slewing bearing system.

Built-in check valve is adopted for safety to prevent objects falling.

Equipped with large capacity cylinder for strong power.

RB-series Rotating Grapple Bucket can be attached at mini to 40-ton class excavators of all brands.

Over-center check valve installed in the cylinder: When the cylinder receives excessive force, it functions as a shock-absorbing function to prevent twisting, crack at the welded part and breakage of cylinder seal kit and also to prevent slewing bearing clearance.

PT60, a special steel of POSCO, is adopted for all models. Light weight and high elasticity steel plates secure low abrasion and excellent resilience.

Brake function in slewing bearing and cylinder: Motor protection and shock prevention function.


Models & Specifications

Model

DHRS-03

DHRS-04

DHRS-06

DHRS-07

DHRS-08

Weight (Kg)

360

450

800

890

1,470

Max Jaw Opening (mm)

1,300

1,400

1,800

1,800

2,300

Grab Operating Hydraulic Oil Pressure (bar)

180-210

180-210

190-230

190-230

190-250

Operating Oil Flow Rate (lpm)

40-60

40-60

90-110

90-110

100-180

Rotating Operating Hydraulic Oil Pressure (bar)

130-150

130-150

140-160

140-160

150-170

Operating Oil Flow Rate (lpm)

30-50

30-50

40-60

40-60

40-60

Applicable Excavators (Ton)

5

7

14

18

20

 

Model

DHRS-09

DHRS-10

DHRS-12

DHRS-16

DHRS-20

Weight (Kg)

1,550

1,850

1,950

2,400

2,550

Max Jaw Opening (mm)

2,300

2,500

2,500

2,500

2,700

Grab Operating Hydraulic Oil Pressure (bar)

190-250

220-300

220-300

220-300

220-300

Operating Oil Flow Rate (lpm)

100-180

120-200

120-200

150-220

150-220

Rotating Operating Hydraulic Oil Pressure (bar)

150-170

150-170

150-170

150-170

150-170

Operating Oil Flow Rate (lpm)

40-60

40-60

40-60

40-60

40-60

Applicable Excavators (Ton)

24

30

33

38

45

 

Bullstern Excavator Attachments International Sales

Copyright (C)   AKORM Corporation   All Rights Reserved