Copper Permitted Delay Detonators

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

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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