Rock and
Concrete Splitter
C4E

1
2
3
4
5

Rock and
Concrete Splitter
C4E

1
Splitting direction can be determined in advance

The splitting direction and the splitting course can be precisely determined via the control valve on the upper handle.

2
Hydraulic hoses with burst protection

Robust multi-layer hoses reliably connect the splitting cylinder to the high-pressure hydraulic power unit, which delivers a system pressure of 50 MPa (500 bar).

3
Different splitting inserts

The predominant source material and the application requirements determine the splitting insert called wedge set. This ensures that the best splitting result is always achieved.

4
Rugged design

Components made of the highest quality aluminum and steel materials guarantee a very long service life even under the hardest conditions. Maintenance work is almost obsolete.

5
Specially developed hardening process

Hard metal layer of the counter wedges enables the transmission of the very high forces and provides long-lasting protection against corrosion, seizure and wear.

Rock and
Concrete Splitter
C4E

1
2
3
4
5

Rock and
Concrete Splitter
C4E

1
Splitting direction can
be determined in advance

The splitting direction and the splitting course can be precisely determined via the control valve on the upper handle.

2
Hydraulic hoses with
burst protection

Robust multi-layer hoses reliably connect the splitting cylinder to the high-pressure hydraulic power unit, which delivers a system pressure of 50 MPa (500 bar).

3
Different splitting inserts

The predominant source material and the application requirements determine the splitting insert called wedge set. This ensures that the best splitting result is always achieved.

4
Rugged design

Components made of the highest quality aluminum and steel materials guarantee a very long service life even under the hardest conditions. Maintenance work is almost obsolete.

5
Specially developed
hardening process

Hard metal layer of the counter wedges enables the transmission of the very high forces and provides long-lasting protection against corrosion, seizure and wear.

Darda
Rock and Concrete
Splitters – the original

Darda
Rock and
Concrete
Splitters –
the original

Can be used independently everywhere

Independent of carrier equipment. Demolition in hard-to-reach places, in confined spaces – even under water.

Powerful in seconds

Splits in seconds with up to 230 t splitting force.

Low vibration and dust, almost noiseless

Can also be used in inhabited areas, enclosed spaces and during ongoing operations, both underground and indoors.

Economical and safe

No time-consuming and costly safety measures. No flying rocks – other work can continue in parallel.

Precise measurement can be controlled at any time

Direction and course of splitting can be precisely determined in advance. Permanent material is spared.

Robust and light

Hardest applications and only one person needed for transport and operation.

Specifications
C4E

C4 N C4 WL
Splitting force 230 t 190 t
Drill hole Ø 35 - 36 mm 35 - 38 mm
Drill depth 430 mm 540 mm
Weight 21 kg 22 kg
Bar pressure 500 bar 500 bar
Data sheet C4E | PDF | 823 KB
Catalog | PDF | 17 MB

Specifications
C4E

C4 N C4 WL
Splitting force 230 t 190 t
Drill hole Ø 35 - 36 mm 35 - 38 mm
Drill depth 430 mm 540 mm
Weight 21 kg 22 kg
Bar pressure 500 bar 500 bar
Data sheet C4E | PDF | 823 KB
Catalog | PDF | 17 MB

Options
and Accessories

Enlarging counter wedges

For enlarging the previously created crack. Particularly strong
reinforcement can be broken off easily afterwards.

Special lubricant

Lubrication of the pressure surfaces of the wedge and the counter wedges
guarantee maximum utilization of splitting force and reduction of wear.
Water resistant.

Enormous
splitting
force up
to 230 t

Short and compact for tightest space

C4E – the exact
Splitter

C4E – the
exact Splitter

Taking advantage of the low tensile strength of rock and concrete, the hydraulic splitting cylinders allow controlled, quiet and cost-effective demolition from the inside!

The C4E splitting cylinder is well established in the natural stone industry for block extraction of both hard and soft rock such as marble and granite. It is also used in the demolition of rocks and natural stone, in secondary splitting of boulders, as well as in tunnel driving, extension in underground mining and knapping work, as well as press pipe jacking.

The handy Rock and Concrete Splitter has an enormous power-to-weight ratio. One person can work in any position and even under water, while other work continues in parallel: Low noise, without vibrations and flying stones.

Functional principle
of the Hydraulic
Rock and Concrete
Splitters

Functional
principle of the
Hydraulic Rock
and Concrete
Splitters

Conventional mechanical methods destroy the structure of the material by applying external force. Rock and concrete, however, can withstand very large compressive forces from the outside. In comparison, the resistance to a force acting from the inside out is relatively low. The development of the Darda Rock and Concrete Splitter was based on this fact.

Safe wedge
principle

First, a hole of the appropriate depth and diameter is drilled, into which the splitting insert of the splitting cylinder is then inserted and aligned to determine the splitting direction. With hydraulic pressure, the wedge pushes itself between the two counter wedges and presses them apart. The effective splitting force of up to 413 tons or 4048 kN destroys the structure of concrete and rock from the inside. A split is created in a matter of seconds. Thinner reinforcing bars in reinforced concrete tear off.

A complete
Splitting Unit
consists of three
components:

1. Hydraulic Splitter

2. Hydraulic Power Unit

3. Hydraulic hose set (high and low pressure)