Electric Detonators for Demolition and EOD
Al Efah Technologies, a Military and Aerospace Technologies provider, supplies electric and delay detonators for demolition, mining, EOD and geophysical work. The range covers the BDE series instantaneous electric detonator, a plain detonator / blasting cap, electric delay and seismic electric detonators, and a non-electric delay detonator (Binel).
Electric Detonator Instantaneous — BDE Series
The BDE series instantaneous detonator is an ultra-quick electric detonator with zero delay (00 ms). It is designed for demolition, mining and EOD tasks. The wires pass through a molded PVC plug which is then crimped into the open end of detonator tube. All electric detonators have shunts on the free ends of the leg wires as mandatory safety precaution. Our product generally fulfills all the international safety and technical aspects by virtue of its make and application. Any additional testing required for customer qualification can be offered.
| Item | Value |
|---|---|
| Length of leg wire | As per customer’s requirement |
| Squib resistance | 1–1.3 ohms |
| Wire types | As per customer’s requirement |
| Wire resistance | Copper wire 0.05–0.06 Ω/m; steel wire 0.6–0.7 Ω/m |
| Safe current | 0.55 A |
| Firing current | 1.00 A |
| Packing | 25 pieces in a cardboard box and 250 pieces in a corrugated carton |
| Abel heat test | Stable at +70°C |
| Environmental conditions | Stable from −50°C to +70°C |
| Explosive classification | HD1.4S, UN 0456 |
| Part number | BDE-AA-BB-C (AA = 00 for instantaneous; BB = leg wire in metres; C = conical base) |
Delay Electric Detonator
High Precision Electric Detonators are used in a wide variety of applications. These are available in various standard wire lengths and in two different delay series (Milli Second and Half Second). The detonators can be deployed easily and have several features that simplify blast connections, field checks and initiation. Biafo’s electrical detonators feature equal timing accuracy for improved fragmentation and vibration.
- Milli Second detonators have standard delay numbers ranging from period # 1 to 20 (25ms to 500ms) with nominal time intervals of 25ms between successive delay numbers.
- Half Second detonators have standard delay numbers ranging from period # 1 to 10 (500ms to 5000ms) with nominal time intervals of 500ms between successive delay numbers.
| Item | Value |
|---|---|
| Cap | No. 8 |
| Length of leg wire | 3.5, 5 m (also on user requirements) |
| Wire resistance | 0.05–0.06 ohms/m (single-ply PVC-coated) |
| Maximum no-fire energy | 7 mW/ohm |
| Maximum operating energy | 15 mW/ohm |
| Packing | 25 pieces in a cardboard box and 250 pieces in a corrugated carton |
| Heat test | Stable at +70°C |
| Environmental conditions | Stable from −50°C to +70°C |
| Explosive classification | 1.4S, UN 0456 |
Non-Electric Delay Detonator
Non-electric delay detonators (Binel) offer precise millisecond or half-second delays for controlled blasting with improved fragmentation and vibration. Suitable for both surface and underground operations, these detonators feature a shock tube that reliably transmits a high-speed signal to initiate the blasting cap. The shock tube is a 3mm outer diameter plastic tube, coated inside with a thin layer of High Explosive/Aluminum dust, which reliably transmits a low energy signal/ pressure wave up to 2000 m/s from one point to another to initiate the detonator. The outer surface of the tube remains intact during and after functioning. The distinguishable tough outer layer gives excellent abrasive, oil resistance and tensile properties.
- Milli Second detonators have standard delay numbers ranging from 1 to 20 (25ms to 500ms) with nominal time intervals of 25ms between successive delay numbers.
- Half Second detonators have standard delay numbers ranging from 1 to 10 (500ms to 5000ms) with nominal time intervals of 500ms between successive delay numbers.
| Item | Value |
|---|---|
| Cap | No. 8 |
| Tube length | 3–30 m |
| Shock tube | 3 mm outer diameter plastic tube, signal up to 2000 m/s |
| Packing | Aluminum-foil initial packing; corrugated box for final packing |
| Heat test | Stable at +70°C |
| Environmental conditions | −50°C to +70°C |
| Hazard class | 1.4S, UN 0455 |
| Applications (from the PDF) | Open cut, underground mines, tunnels, drifts, shaft sinking and demolitions |
Plain Detonator / Blasting Cap
A Plain detonator or blasting cap is a small sensitive primary explosive device generally used to detonate a larger, more powerful and less sensitive secondary explosive. Plain Detonator is used for mining and construction purposes. It can reliably initiate all cap sensitive explosives and detonating cord.
This type of detonator is used with safety fuse under relatively dry conditions, preferably where a single or multiple charges are to be fired. Plain detonator is made of Aluminum sheet, Lead azide, Lead styphnate (1º) and PETN (2º). The detonator is crimped to the safety fuse with specialized crimper.
| Item | Value |
|---|---|
| Tube length | 46 mm |
| Initiating power | No. 8 |
| Tube material | Aluminum alloy |
| Composition | PETN, AS-Compo (narrative: lead azide, lead styphnate and PETN) |
| Packing | 100 in cardboard and 10,000 pieces in a corrugated box |
| Maximum energy | 1272 calories |
| Abel heat test | Stable at +70°C |
| Environmental conditions | Stable from −50°C to +70°C |
| Hazard class | 1.4S, UN 0455 |
Seismic Electric Detonator
Seismic Electric Detonator is a high-performance detonator designed for geophysical exploration. It is a super-fast high strength instantaneous Blasting Cap. Its robust construction ensures reliability in harsh environments. Key features include a copper-coated fuse head for optimal conductivity, and antistatic, water-resistant leg wires for durability. It is ideal for both single and pattern firing applications.
| Item | Value |
|---|---|
| Cap | No. 8 |
| Length of leg wire | 4.5, 15, 20, 25 and 30 m (per customer requirement) |
| Wire resistance | 0.05–0.06 ohms/m (single-ply PVC-coated) |
| Maximum no-fire energy | 7 mW/ohm |
| Maximum operating energy | 15 mW/ohm |
| Water resistance | Excellent at 100 psi |
| Packing | As per length |
| Heat test | Stable at +70°C |
| Environmental conditions | Stable from −50°C to +70°C |
| Hazard class | 1.4S, UN 0456 |
Igniter Safety Fuse
This device is designed to provide a means of ignition for initiation of burn. Igniter consists of a reliable fusehead crimped into a copper tube with a vent hole. The tube has an integral stop to ensure correct fitting to safety fuse. The wires are twisted to reduce the risk of accidental initiation by stray Radio Frequency (RF) interference.
Frequently asked questions
What detonators does Al Efah supply?
Al Efah Technologies, a Military and Aerospace Technologies provider, supplies five detonator types: the BDE series instantaneous electric detonator (00 ms), a plain detonator / blasting cap, an electric delay detonator in millisecond and half-second series, a seismic electric detonator for geophysical exploration, and a non-electric delay detonator (Binel) with a shock tube.
What is the BDE series instantaneous electric detonator?
The BDE series instantaneous detonator is an ultra-quick electric detonator with zero delay (00 ms). It is designed for demolition, mining and EOD tasks. The wires pass through a molded PVC plug crimped into the detonator tube, and the free ends of the leg wires are shunted as a mandatory safety precaution. Explosive classification is HD1.4S, UN 0456. The part number format is BDE-AA-BB-C, with AA = 00 for instantaneous.
What are the firing and safety currents of the BDE instantaneous detonator?
Squib resistance is 1 to 1.3 ohms. Safe current is 0.55 A and firing current is 1.00 A. Leg-wire length and wire type are supplied as per the customer’s requirement. Copper wire resistance is 0.05–0.06 Ω/m and steel wire is 0.6–0.7 Ω/m.
What is a plain detonator or blasting cap?
A plain detonator or blasting cap is a small, sensitive primary explosive device used to detonate a larger, less sensitive secondary explosive. It is used with safety fuse under relatively dry conditions, for mining and construction, and can initiate cap-sensitive explosives and detonating cord. It is an aluminum No. 8 strength detonator. Hazard class is 1.4S, UN 0455.
What delay intervals are available?
Electric delay and non-electric delay (Binel) detonators are offered in two series. Millisecond detonators have delay numbers 1 to 20 (25 ms to 500 ms) with 25 ms intervals. Half-second detonators have delay numbers 1 to 10 (500 ms to 5000 ms) with 500 ms intervals.
What is the seismic electric detonator?
The seismic electric detonator is a high-performance detonator for geophysical exploration. It is a super-fast, high-strength instantaneous blasting cap with a copper-coated fuse head and antistatic, water-resistant leg wires, for single or pattern firing. Leg-wire lengths are 4.5, 15, 20, 25 and 30 m, or as required. Water resistance is given as excellent at 100 psi. Hazard class is 1.4S, UN 0456.
Download the BDE instantaneous electric detonator datasheet (PDF) or contact Al Efah for a quote.