Filling
Fill liquid oxygen into the rock splitting pipes on site. Until this step, the pipes are inert and safe to handle.
Liquid Oxygen Rock Splitting System ยท DL-III
Oxygen expands.
Rock splits.
Liquid-oxygen static rock splitting: safe, eco-friendly, efficient, economical. An 800x phase-transition expansion at -183°C, peak vibration 0.97 cm/s at 100 m, and no hazardous chemicals in the supply chain.
CE & ISO Certified
20+ Years Experience
Non-Explosive Static Splitting
800x
Volume expansion at instantaneous phase transition
0.97cm/s
Peak vibration at 100 m, below the 2.0 cm/s limit
8models
D90 / D110 pipes, 2 to 6 m, connectable options
90-110mm
Drilling diameter for the splitting pipes
Why liquid oxygen splitting?
A static, low-vibration, high-power way to break hard rock.
DL-III LOX ROCK SPLITTING SYSTEM
Safety First
On-site filling mode: before liquid oxygen is filled, the pipes pose no explosion hazard. Transport and storage risk drops dramatically.
Environmentally Clean
End products are mainly water vapor, CO2, and a little oxygen. No toxic NOx or sulfides, no heavy dust.
Low Vibration, Low Noise
Peak particle velocity is only about 3.04 cm/s even at 3 m, and 0.97 cm/s at 100 m, far below the 2.0 cm/s explosive threshold. Ideal near buildings and sensitive areas.
High Energy Output
Adjustable fracturing power gives a high fragmentation rate with an extremely low oversize boulder yield.
Cost-Effective
Low overall fracturing cost with better large-scale economics than many mechanical and static cracking methods.
Easy Oxygen Supply
Liquid oxygen is easily purchased from local industrial gas suppliers. A well-established global supply network keeps refueling simple.
Zero Residual Hazards
After liquid oxygen fully vaporizes, only non-explosive waste remains in the blast hole. Potentially explosive material disappears both physically and chemically.
Watch it split.
Field footage of liquid oxygen rock splitting, in widescreen 16:9. Pause or resume anytime with the control on the video.
The principle: 800x expansion.
Liquid oxygen at -183°C expands more than 800 times during an instantaneous phase transition.
Initiation
Activate the liquid gas with a micro-current, releasing massive heat instantly inside the sealed pipe.
Phase Transition
The liquid gas rapidly vaporizes and expands about 800 times in volume, generating high impact pressure.
Fracturing
High-pressure gas ruptures the pressure-set shear disc, acts on the rock face, and strips or breaks rock from the mass.
Operating procedures.
Five steps from borehole to split rock.
Drill the Holes
Hole diameter 90-115 mm, spacing 3 m, row spacing 3 m, depth 4-10 m depending on the pipe model.
Place the Pipes
Set the rock splitting pipes into the boreholes, ready for filling.
Stem the Hole
Seal the borehole with soil or crushed stone to contain the expansion energy.
Connect & Fill
Connect the cables and filling pipeline, then fill liquid oxygen on site.
Activate & Split
Fire the high-energy pulse initiator to split the rock.
Four parts. One complete system.
From cryogenic storage to the split face.
Cryogenic LOX Storage Tank
Pressure-retaining (self-pressurizing) Dewar. Model ZD-499L, 2,100×850×1,030 mm, maintains working pressure for field filling.
Rock Splitting Pipe
Models D90/2, D90/4, D90/6, D110/2, D110/4, D110/6 plus connectable variants. Drilling diameter 90/110 mm, lengths 2/4/6 m.
Intelligent Initiator
High-energy pulse firing-control unit that triggers the pipe safely and controllably.
Anti-Static Tool Kit
Leads, filling hose, connectors, and installation tools for safe field operation.
Pipe models, configurable by depth.
Match the pipe to your hole depth and rock hardness.
| Model | Diameter (mm) | Length (m) | LOX Capacity (kg/m) | Drilling Dia. (mm) | Drilling Depth (m) |
|---|---|---|---|---|---|
| D90/2 | 750 | 2 | 5 - 8 | 90 | 4.5 - 5 |
| D90/4 | 750 | 4 | 5 - 8 | 90 | 6.5 - 7 |
| D90/6 | 750 | 6 | 5 - 8 | 90 | 8.5 - 9 |
| D90/2C | 750 | 2 (connectable) | 5 - 8 | 90 | - |
| D110/2 | 900 | 2 | 5 - 8 | 110 | 4.5 - 5 |
| D110/4 | 900 | 4 | 5 - 8 | 110 | 6.5 - 7 |
| D110/6 | 900 | 6 | 5 - 8 | 110 | 8.5 - 9 |
| D110/2C | 900 | 2 (connectable) | 5 - 8 | 110 | - |
Reference data from the manufacturer test report. Verify against the actual product specification before ordering.
Vibration Test Report
Field monitoring at Yanling Daye Building Materials Mine, Feb 18, 2023. Sampling rate 10,000 SPS, vibration frequency 31.33-33.85 Hz. Explosive reference limit 2.0-2.5 cm/s.
| Monitoring Point | Distance | Peak Vibration Velocity |
|---|---|---|
| Point 1 | 100 m | 0.9682 cm/s |
| Point 2 | 300 m | 0.5244 cm/s |
| Point 3 | 1,000 m | 0.0378 cm/s |
All measured values stay well below the 2.0 cm/s safety threshold: gentle, controllable energy release.
Built for hard-rock excavation.
Open-pit mines, quarries, and large earthwork projects.
01
Mining Operations
Hard rock mining in open-pit mines, stone extraction in quarries, and rock strata stripping.
02
Infrastructure & Geotechnical
Large-scale earthwork, foundation pit excavation, trench construction, and slope trimming.
03
Sensitive & Urban Sites
Low vibration and noise make it suitable near buildings, roads, and residential areas.
04
Secondary Breaking
Efficient secondary breaking of boulders and oversized rock on any site.
CE & ISO
Certified
International quality standards
20+
Years
Rock breaking expertise
50+
Countries
Global export reach
800x
Expansion
Instant phase transition of liquid oxygen
Frequently asked questions.
What buyers ask before switching to liquid oxygen splitting.
Is it really safe to store and transport?
Yes. The system uses on-site filling: before liquid oxygen is filled into the pipes, they pose no explosion hazard. Transport and storage risk drops dramatically compared with conventional explosives.
Where do I get liquid oxygen?
Liquid oxygen is easily purchased from local industrial gas suppliers in most regions, keeping the supply chain simple and low cost.
How strong is the vibration?
Field monitoring recorded peak vibration of 0.9682 cm/s at 100 m, 0.5244 cm/s at 300 m, and 0.0378 cm/s at 1,000 m, all well below the 2.0 cm/s explosive threshold.
Which pipe model fits my job?
Choose by drilling diameter and hole depth: D90 for 90 mm holes, D110 for 110 mm holes, with 2, 4, or 6 m lengths and connectable options. Our engineers confirm the configuration for your rock.
Get Started
Ready to split with liquid oxygen?
Tell us your rock type, hole depth, and output target. We will confirm the pipe models and system configuration, with a response within 24 hours.
Free Consultation
No Obligations
Response Within 24 Hours
Request a quote
One tap opens WhatsApp with your inquiry pre-filled, or reach us through the contact page.
WhatsApp: +86 198 3400 7866 / Email: allen@dlminingequipment.com