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Our models

Two Yamamoto Rock Splitter models are available to meet your excavation needs: the HRB-1000 and the HRB-1700. Each of these models offers exceptional performance for hard rock excavation. Compare the specifications to determine which one best meets your specific requirements.

Play buttonWhy the Rock Splitter?

Comparison between the
HRB-1000 and HRB-1700

HRB

Models HRB-1000 HRB-1700
Weight 650 kg 1,500 kg
Drilling Diameter Ø 102 mm Ø 127 mm
Drilling Depth 1,500 mm 2,500 mm
Splitting Force 22MN (2,250 ton) 34MN (3,550 ton)
Separation Distance 25 mm 30 mm
Key Diameter Ø95 mm to 110 mm Ø120 mm to 160 mm
Key Length (A) 1,150 mm 1,850 mm
Separator Length (B) 3,000 mm 4,300 mm
Cylinder Length (C) 1,850 mm 2,450 mm
Hydraulic Pressure (min/max) 350/500 bar 350/500 bar
Excavator Weight (tons) 12+ 20+
Standard Hole Spacing 500 x 500 mm 700 x 700 mm

How Does It Work?

The primary operation of the Rock Splitter is based on inserting counter-wedges into a predrilled hole. The hydraulic cylinder pushes the central wedge between the counter-wedges to spread them apart, forcing the rock to crack.

  • Step 1:

    Insert half of the total length of the wedge and use the Yamamoto splitter to split.

  • Step 2:

    Then insert about ¾ of the total length of the wedge to split again.

  • Step 3:

    Finally, insert the full length of the wedge and split to complete.

Yamamoto vs. competitor

HRB

Models YAMAMOTO HRB-1700 COMPETITOR
Weight 1,500 kg 390 kg
Drilling Diameter Ø 127 mm Ø 76 mm
Drilling Depth 2,500 mm 950 mm
Splitting Force 34MN (3,550 ton) 1800 ton
Hydraulic Pressure (min/max) 350/500 bar 500 bar

The Rocksplitter for
your next project

For more details about the Yamamoto Rock Splitter and to discover how it can make a difference in your projects, contact us today.

Contact a representative

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