Copper Permitted Delay Detonators

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Shell MaterialCopper
Fuse head resistance1.6-2.4 ohms
Firing impulse3.2mws/ohm
Packing materialFibre Board
Supply TypeManufacturer, Exporter, Supplier, Retailer
Preferred Buyer Location All over the world

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Company Information

A P Explosives Private Limited

Vikrampuri, Secunderabad, Telangana

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Member Since 8 Years
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Product Details
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Shell MaterialCopper
Packing materialFibre Board
Primary ChargeASA with OAP
Shell Length(0-6) 43- 68 mm
Quantity per box1000-1500 nos.
Base ChargePETN
Fuse head resistance1.6-2.4 ohms
Bare wire diameter0.46+/- 0.02 mm
Lead wire materialTinned steel wire.
Firing impulse3.2mws/ohm
No fire current0.18 apms for 300 sec
Firing current1.2 amps DC, 0.8 amps DC single
StrengthNo.8
Standard length1.8, 2.0, 2.2, 2.5 or as required
Lead wire resistance0.5-0.6 ohms/m
Lead wire colourWhite/blue

APPDD are available in 0-6 numbers with delay interval of 25milliseconds. The shells are made of copper material. The delay element is inserted above the primary charge and consolidated. The delay timing is achieved by the lead element on the primary charge. The two lead wires are passed through the PVC plug soldered with the fuse head and crimped.

Application

Permitted delay detonators are used in gassy underground coal mines.

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