Resistance Test
Measure tube resistance with the tester and confirm the value is within the standard range, tolerance ±0.5Ω.
Disposable CO2 Fracturing Tube · Disposable Series
Single use.
Zero permits.
Single-use gas expansion tubes for regulation-free rock fragmentation. Initiation in 4 milliseconds, 9 V low-voltage wiring, no detonation, no misfire, and no blasting license.
CE & ISO Certified
No Blasting License Needed
4 ms Instant Response
4ms
Instant response after electrical initiation
9V
Low-voltage initiation, 2000 V+ initiator compatible
32-40mm
Tube diameters, lengths 0.35 to 2.0 m
30%+
Operating cost saving vs conventional blasting
Why switch to disposable CO2 tubes?
Contained chemical reaction, high-pressure gas expansion, and none of the blasting baggage.
DISPOSABLE BLASTING TUBES / STORAGE & INSPECTION
Extreme Safety
No spark, no arc, no flame. Impact, friction, and static electricity cannot trigger detonation. CO2 is inert and actually suppresses combustion.
Eco-Friendly
Only CO2 is released as the primary gas, a flame retardant by nature. No toxic CO, NOx, minimal dust, and low noise.
Cost Effective
No explosive permits, no specialized storage, no professional guards. Operating costs drop 30%+ compared with blasting.
Fast & Efficient
Fracturing completes in 4 milliseconds. No misfire, no post-blast inspection, 9 V low-voltage initiation.
Directional Control
Fracturing direction is controllable, delayed initiation is supported, and energy levels adjust to rock hardness.
No License Required
Not classified as explosives. No blasting license, easy transport and storage, and no special security personnel.
Field Proof
Watch it split.
Case footage of the disposable tube cracking rock on site, in vertical 9:16 for mobile-first viewing. The same cut works on Douyin and other short-video channels.
CASE FOOTAGE · DISPOSABLE TUBE
Five steps. Then rock.
From resistance test to ventilated face.
Wiring
Connect tubes in series. Use 0.5 mm² copper wire for branches and 1 mm² or larger for the main line. Seal every joint.
Loading
Insert the tube with the lead end facing the hole bottom, leaving about 30 cm exposed. Backfill with fine gravel, then coarse.
Initiation
Personnel evacuate to at least 50 m. The safety officer alarms, charges the initiator to about 2000 V, and fires.
Ventilation
After fracturing, ventilate continuously and enter the work area only after gas detection confirms safety.
On site: tunneling single-use pipe.
Drill and blast alternative. Safe, eco-friendly, no approval needed.
Disposable tube vs. traditional blasting.
The regulation and safety gap at a glance.
| Parameter | Traditional Explosives | CO2 Fracturing Tube |
|---|---|---|
| Regulation | Explosives, strict control | Not classified as explosives |
| Fire Risk | Open flame, sparks | No flame, no spark |
| Gas Explosion Risk | High risk in gas mines | CO2 inert, zero risk |
| Misfire | Requires professional handling | No misfire possible |
| Flyrock & Shockwave | Significant | Minimal flyrock, low vibration |
| Toxic Gases | CO, NOx, SO2 | Primarily CO2 |
| Permit Required | Blasting license mandatory | No special license |
| Storage | Specialized magazine | Standard warehouse OK |
| Stone Texture | May damage integrity | Preserves stone texture |
32 mm and 40 mm. 0.35 to 2.0 m.
PPR tube material, 0.55 mm² pure copper wire, leads extended 15 mm. Resistance tolerance ±0.5Ω.
32 mm Diameter Series
| Length | Ignition Heads | Resistance (Ω) | Weight |
|---|---|---|---|
| 0.35 m | 2 | 1.7 - 2.2 | 350 g |
| 0.55 m | 2 | 2.2 - 2.7 | 450 g |
| 1.0 m | 4 | 3.8 - 4.2 | 830 g |
| 1.5 m | 7 | 4.4 - 5.7 | 1,300 g |
| 2.0 m | 10 | 9.1 - 9.6 | 1,700 g |
40 mm Diameter Series
| Length | Ignition Heads | Resistance (Ω) | Weight |
|---|---|---|---|
| 0.35 m | 2 | 1.9 - 2.2 | 380 g |
| 0.55 m | 2 | 2.2 - 2.7 | 670 g |
| 1.0 m | 5 | 5.1 - 5.6 | 1,350 g |
| 1.5 m | 7 | 5.7 - 6.6 | 1,850 g |
| 2.0 m | 10 | 9.1 - 9.6 | 2,630 g |
Drilling Parameters Reference
| Tube Model | Hole Dia. | Hole Spacing | Drilling Depth | Application |
|---|---|---|---|---|
| Φ32 × 350 | 40 mm | 500-700 mm | 700-900 mm | Cut / Trim hole |
| Φ32 × 550 | 40 mm | 500-700 mm | 800-1,000 mm | Cut / Trim hole |
| Φ32 × 1000 | 40 mm | 700-1,000 mm | 1,300-1,500 mm | Cut / Perimeter |
| Φ32 × 1500 | 40 mm | 700-1,000 mm | 1,800-2,200 mm | Perimeter hole |
| Φ32 × 2000 | 40 mm | 700-1,000 mm | 2,500-3,000 mm | Perimeter hole |
| Φ40 × 1000 | 46 mm | 800-1,000 mm | 1,300-1,500 mm | Perimeter hole |
| Φ40 × 1500 | 46 mm | 800-1,000 mm | 1,800-2,200 mm | Perimeter hole |
| Φ40 × 2000 | 46 mm | 1,000-1,200 mm | 2,500-3,000 mm | Perimeter hole |
Technical highlights.
What makes the tube safe, fast, and simple.
4 ms Instant Response
On electrical initiation, the internal compound reacts within 4 milliseconds to generate a large volume of high-pressure gas.
9 V Low-Voltage Initiation
Compatible with standard high-voltage initiators (2000 V+). Simple series or series-parallel wiring, no specialized personnel.
PPR Tube Material
High-strength PPR construction with 0.55 mm² pure copper wire leads, extended 15 mm for reliable connection.
Zero Sensitivity
Certified with zero sensitivity to impact, friction, flame, and static electricity. The safest way to break rock without explosives.
Need genuine liquid-CO2 classification? Meet the #90.
A single-use metal-shell tube running the true liquid-CO2 phase-change mechanism — for sites whose rules, permits or clients require it, without any spent-tube recovery.
#90 liquid-CO2 metal tube
- True liquid-CO2 phase change — the same mechanism class as Cardox-type systems (600–1,000× expansion, 200–300 MPa)
- Metal shell, single use — fire, fracture, no recovery run
- Suits high-gas seams and sites where CO2 classification matters
BEST FOR: CO2-CLASSIFIED SITES · NO RECOVERY LOGISTICS
Gas-expansion tube (32/40 mm)
- Chemical powder generates the expanding gas — no liquid CO2, no refill station
- 4 ms response, 9 V initiation, PPR shell, 0.35–2.0 m
- The expanding gas is still predominantly CO2 — the difference is the source, not the name
BEST FOR: SIMPLICITY · LOWEST UPFRONT COST
Not sure which disposable technology fits your permit situation? Send the site rules and rock type — we will recommend the line and size the tube layout.
Where disposables shine.
Mining, tunneling, quarrying, and urban construction.
01
Mining
Coal mines (low-gas), metal mines, and non-metal mines. Protects ore vein texture for higher yield.
02
Underground Works
Tunnel excavation, subway construction, and water diversion culverts with minimal disturbance to surrounding rock.
03
Infrastructure
Power shaft excavation, solar panel foundations, directional fracturing, and foundation pit digging.
04
Quarrying
Dimension stone quarrying with zero damage to texture and a higher block recovery rate than blasting.
CE & ISO
Certified
International quality standards
20+
Years
Rock breaking expertise
50+
Countries
Global export reach
100
Pieces MOQ
Low order minimum, bulk discounts over 1,000
Frequently asked questions.
What buyers ask about single-use CO2 tubes.
What is a disposable CO2 fracturing tube?
A single-use sealed PPR tube containing an internal gas-generating compound and an electric match head. Initiation produces high-pressure CO2 that splits the rock from inside the borehole.
How is it different from reusable CO2 systems?
Reusable systems use recoverable steel tubes with hundreds of cycles. Disposable tubes are single-use sealed cartridges with zero recovery equipment, a lower upfront cost, and the simplest logistics.
Do I need a blasting license?
In most jurisdictions, CO2 fracturing tubes are not classified as explosives, so no blasting license, specialized storage, or security personnel are required. Confirm local rules with our team.
What is the minimum order quantity?
Orders start from 100 pieces per model, with bulk discounts above 1,000 pieces. Contact us for current pricing and lead time.
Is there a single-use option with true liquid CO2?
Yes — the #90 disposable metal tube runs the true liquid-CO2 phase-change mechanism in a single-use metal shell. It is built for sites whose rules or clients require genuine liquid-CO2 classification, but where collecting and returning spent tubes is impractical.
Can it be used in underground coal mines?
Yes. The primary gas generated is CO2, which is inert and actually suppresses combustion, making it suitable for low-gas coal mines and other sensitive underground environments.
Get Started
Ready to switch to safer rock breaking?
Tell us your rock type, hole pattern, and order volume. We will confirm tube selection and delivery, 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