The DALI SJ-400 is a narrow diesel mobile rock splitter for secondary breaking of oversized rock in underground mines and tunnels. It combines a 1.23 m machine width, 85 mm rod diameter, 400-800 bpm published beating frequency and hydrostatic travel, prioritizing access in restricted work areas.
|
Selection Item |
Published Value |
|
Overall dimensions |
6,900 x 1,230 x 2,000 mm |
|
Rod diameter |
85 mm |
|
Beating frequency |
400-800 bpm |
|
Ground clearance |
220 mm |
|
Gradeability / oscillation |
20 / +/-8 degrees |
|
Engine |
Deutz BF4L2011, 47.5 kW at 2,300 rpm |
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SJ-400 is designed around access rather than maximum tool size. Its 1.23 m width suits restricted mine drifts where oversized boulders must be broken before loading, hauling or passing through a crusher interface.
The page does not publish splitting force, tool stroke, required hole diameter/depth, rock limits or cycle time. These are essential selection inputs and must be supplied before the machine can be compared on productivity.
At 6.9 x 1.23 x 2.0 m, SJ-400 is 610 mm narrower than SJ-500. Check articulation sweep, tool envelope and safe operator clearance in addition to body width.
The page lists an 85 mm rod and 400-800 bpm. These figures do not by themselves establish splitting capacity; rock structure, predrilled hole and tool geometry remain decisive.
Hydrostatic transmission supports positioning and frequent directional changes. The page lists rigid planetary axles, front NO-SPIN differential and Posi-stop braking.
The current configuration lists a 47.5 kW Deutz BF4L2011, with D914L shown as an option. Confirm engine, emissions and exhaust-treatment availability by market.
|
Parameter |
Published Value |
|
Overall dimensions |
6,900 x 1,230 x 2,000 mm |
|
Rod diameter / beating frequency |
85 mm / 400-800 bpm |
|
Ground clearance |
220 mm |
|
Gradeability / oscillation |
20 / +/-8 degrees |
|
Engine |
Deutz BF4L2011, 47.5 kW at 2,300 rpm |
|
Alternative engine listed |
D914L; confirm availability |
|
Transmission |
Hydrostatic |
|
Axles / brakes |
Rigid planetary, front NO-SPIN / Posi-stop |
SJ-400 is 1.23 m wide with an 85 mm rod; SJ-500 is 1.84 m wide with a 105 mm rod. Choose from access and verified rock-breaking requirements.
The page does not define rock strength or geological limits. Send representative rock and hole data for engineering confirmation.
The page does not describe an onboard drilling system. Confirm the required predrilling workflow and compatible hole dimensions.
Provide tunnel profile, rock data, boulder size, hole plan, operating altitude, ventilation and destination country.
